Abstract

Multicore erbium-doped fiber amplifiers (MC-EDFAs) are essential components to achieve long-haul multicore fiber (MCF) transmission. An attractive technique for reducing the number of components and power consumption is the cladding–pumping scheme in MC-EDFAs in which all cores are simultaneously pumped using a single high-power multimode laser diode. In this paper, we experimentally demonstrate long-haul MCF transmission using cladding-pumped seven-core EDFAs. We confirm that 73 × 128-Gbit/s Nyquist-pulse-shaped dual-polarization quadrature phase-shift keying signals are successfully transmitted over 2520-km seven-core fiber.

© 2015 OAPA

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  1. K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.
  2. T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.
  3. R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.
  4. P. J. Winzer, “Spatial multiplexing: The next frontier in network capacity scaling,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.1.D.1.
  5. P. M. Krummrich, “Optical amplification and optical filter based signal processing for cost and energy efficient spatial multiplexing,” Opt. Exp., vol. 19, no. 17, pp. 16636–16652, 2011.
  6. K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.
  7. Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.
  8. S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.
  9. K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.
  10. Y. Tsuchida, K. Maeda, and R. Sugizaki, “Multicore EDFA for space division multiplexing,” presented at the 18th OptoElectronics Communication Conf., San Francisco, CA, USA, 2013, Paper TuS1–1.
  11. K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.
  12. K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.
  13. D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.
  14. K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

2014 (1)

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

2013 (1)

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

2012 (1)

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

2011 (1)

P. M. Krummrich, “Optical amplification and optical filter based signal processing for cost and energy efficient spatial multiplexing,” Opt. Exp., vol. 19, no. 17, pp. 16636–16652, 2011.

Abe, Y.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Abedin, K. S.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Aiso, K.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

Bansal, L.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

Burrows, E.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Cai, Y.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Chandrasekhar, S.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Chang, D.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Corteselli, S.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Delbue, R.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

DiGiovanni, D. J.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Dimarcello, F. V.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Doi, K.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

Essiambre, R. -J.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Fini, J. M.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Fishteyn, M.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Fontaine, N. K.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Gnauck, A. H.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Gruner-Nielsen, L.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Hauske, F. N.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Hiraga, K.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Igarashi, K.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Imamura, K.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Ishida, I.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Jensen, R. V.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Kawakami, H.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Kobayashi, T.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Krummrich, P. M.

P. M. Krummrich, “Optical amplification and optical filter based signal processing for cost and energy efficient spatial multiplexing,” Opt. Exp., vol. 19, no. 17, pp. 16636–16652, 2011.

Kumagai, W.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

Li, L.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Lingle, R.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Maeda, K.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

Y. Tsuchida, K. Maeda, and R. Sugizaki, “Multicore EDFA for space division multiplexing,” presented at the 18th OptoElectronics Communication Conf., San Francisco, CA, USA, 2013, Paper TuS1–1.

Masuda, H.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Matsuo, S.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Matsuura, H.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

Matsuura, M.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

Mimura, Y.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

Miyabe, R.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

Miyamoto, Y.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Mizuno, T.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Monberg, E. M.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Montoliu, M.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Morioka, T.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Morita, I.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

Ogoshi, H.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

Ono, H.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Pupalaikis, P.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Randel, S.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Ryf, R.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Saito, T.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

Saitoh, K.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Sano, A.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Sasa, T.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Sasaki, Y.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Stojanovic, N.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Sugizaki, R.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

Y. Tsuchida, K. Maeda, and R. Sugizaki, “Multicore EDFA for space division multiplexing,” presented at the 18th OptoElectronics Communication Conf., San Francisco, CA, USA, 2013, Paper TuS1–1.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

Sumita, S.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

Sun, Y.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Supradeepa, V. R.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Sureka, A.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Suzuki, M.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

Tadakuma, M.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

Takahashi, H.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

Takara, H.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Takasaka, S.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

Takenaga, K.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Takeshima, K.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

Taunay, T. F.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Thierry, T. F.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

Tsuchida, Y.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

Y. Tsuchida, K. Maeda, and R. Sugizaki, “Multicore EDFA for space division multiplexing,” presented at the 18th OptoElectronics Communication Conf., San Francisco, CA, USA, 2013, Paper TuS1–1.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

Tsuritani, T.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

Wada, M.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Watanabe, K.

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

Winzer, P. J.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

P. J. Winzer, “Spatial multiplexing: The next frontier in network capacity scaling,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.1.D.1.

Xiao, Z.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Xie, C.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

Xiong, Q.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Xu, X.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Yamada, M.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

Yan, M. F.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Yu, F.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

Zhu, B.

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

J. Lightw. Technol. (1)

K. S. Abedin, J. M. Fini, T. F. Thierry, V. R. Supradeepa, B. Zhu, M. F. Yan, L. Bansal, E. M. Monberg, and D. J. DiGiovanni, “Multicore erbium doped fiber amplifiers for space division multiplexing systems,” J. Lightw. Technol., vol. 32, no. 16, pp. 2800–2808, 2014.

Opt. Exp. (3)

K. Igarashi, K. Takeshima, T. Tsuritani, H. Takahashi, S. Sumita, I. Morita, Y. Tsuchida, M. Tadakuma, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki, “110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA,” Opt. Exp., vol. 21, no. 15, pp. 18053–18060, 2013.

P. M. Krummrich, “Optical amplification and optical filter based signal processing for cost and energy efficient spatial multiplexing,” Opt. Exp., vol. 19, no. 17, pp. 16636–16652, 2011.

K. S. Abedin, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, V. R. Supradeepa, J. M. Fini, M. F. Yan, B. Zhu, E. M. Monberg, and F. V. Dimarcello, “Cladding-pumped erbium-doped multicore fiber amplifier,” Opt. Exp., vol. 20, no. 18, pp. 20191–20200, 2012.

Other (10)

Y. Tsuchida, K. Maeda, K. Watanabe, T. Saito, S. Takasaka, M. Tadakuma, R. Sugizaki, H. Ogoshi, K. Doi, M. Matsuura, K. Takeshima, T. Tsuritani, and I. Morita, “Cladding-pumped L-band multicore EDFA with reduced power consumption,” presented at the IEEE Summer Topical Meeting Series, Montreal, QC, USA, 2014, Paper ME2.2.

S. Takasaka, H. Matsuura, W. Kumagai, M. Tadakuma, Y. Mimura, Y. Tsuchida, K. Maeda, R. Miyabe, K. Aiso, K. Doi, and R. Sugizaki, “Cladding-pumped seven-core EDFA using a multimode pump light coupler,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.4.A.5.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, R. Sugizaki, and M. Suzuki, “1.03-Exabit/sžkm super-nyquist-WDM transmission over 7,326-km seven-core fiber,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.3.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 × 344 Tb/s Propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper PDP3.E.4.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. -J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Gruner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Eur. Conf. Optical Communication, Anaheim, CA, USA, 2013, Paper PDP5A.1.

P. J. Winzer, “Spatial multiplexing: The next frontier in network capacity scaling,” presented at the Eur. Conf. Optical Communication, London, U.K., 2013, Paper We.1.D.1.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf. Exhibition, Los Angeles, CA, USA, 2012, Paper OW1H.4.

K. Takeshima, T. Tsuritani, Y. Tsuchida, K. Maeda, T. Saito, K. Watanabe, T. Sasa, K. Imamura, R. Sugizaki, K. Igarashi, and I. Morita, “WDM/SDM transmission of 76 × 128-Gbit/s Nyquist-pulse-shaped DP-QPSK signals over 4,200 km using cladding pumped 7-core EDFA,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper JThA.13.

Y. Tsuchida, K. Maeda, and R. Sugizaki, “Multicore EDFA for space division multiplexing,” presented at the 18th OptoElectronics Communication Conf., San Francisco, CA, USA, 2013, Paper TuS1–1.

K. Maeda, Y. Tsuchida, S. Takasaka, T. Saito, K. Watanabe, T. Sasa, R. Sugizaki, K. Takeshima, and T. Tsuritani, “Cladding pumped multicore EDFA with output power over 20 dBm using a fiber based pump combiner,” presented at the 20th OptoElectronics Communication Conf., Shanghai, China, 2015, Paper PWe.30.

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