Abstract

This paper focuses on terabit superchannel transmission with enhanced network reach by using an emerging noise-suppressed Nyquist wavelength division multiplexing (NS-N-WDM) technique for polarization multiplexing quadrature phase shift keying subchannels at different symbol rate to subchannel spacing ratios up to 1.28, and for the first time, it was compared experimentally with the transmission capability of no-guard-interval coherent optical orthogonal frequency division multiplexing (NGI-CO-OFDM) on the same testbed. At 2 × 10<sup>-3</sup> bit error ratio, the maximum reachable distance is 3200 and 2800 km SMF-28 with erbium-doped-fiber-amplifier-only amplification for NGI-CO-OFDM and NS-N-WDM terabit superchannels, respectively, at 100 Gb/s/ch. For 11 × 112 and 11 × 128 Gb/s/ch NS-N-WDM transmission under assumption of different coding gain with hard-decision and soft-decision forward error correction, their maximum achievable distance was found to be equivalent, which are 2100 and 2170 km, respectively, both were achieved by using digital noise filtering and 1-bit maximum likelihood sequence estimation at the receiver DSP. In addition, the back-to-back characteristics of NS-N-WDM superchannel such as analog-to-digital converter bandwidth requirement and its tolerance to unequal subchannel power were experimentally evaluated and studied.

© 2012 IEEE

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  1. M. Birk, P. Gerard, R. Curto, L. E. Nelson, X. Zhou, P. Magill, T. J. Schmidt, C. Malouin, B. Zhang, E. Ibragimov, S. Khatana, M. Glavanovic, R. Loand, R. Marcoccia, R. Saunders, G. Nicholl, M. Nowell, F. Forghieri, "Coherent 100 Gb/s PM-QPSK field trial," IEEE Commun. Mag. 48, 52-60 (2010).
  2. C. Xie, G. Raybon, P. J. Winzer, "Transmission of mixed 224-Gb/s and 112-Gb/s PDM-QPSK at 50-GHz channel spacing over 1200-km dispersion-managed LEAF® spans and three ROADMs," J. Lightw. Technol. 30, 547-552 (2012).
  3. J.-X. Cai, C. R. Davidson, A. Lucero, H. Zhang, D. G. Foursa, O. V. Sinkin, W. W. Patterson, A. N. Pilipetskii, G. Mohs, N. S. Bergano, "20 Tbit/s transmission over 6860 km with sub-Nyquist channel spacing," J. Lightw. Technol. 30, 651-657 (2012).
  4. X. Zhou, J. Yu, M.-F. Huang, Y. Shao, T. Wang, L. Nelson, P. Magill, M. Birk, P. I. Borel, D. W. Peckham, R. Lingle, B. Zhu, "64-Tb/s, 8 b/s/Hz, PDM-36QAM transmission over 320 km using both pre- and post-transmission digital signal processing," J. Lightw. Technol. 29, 571-577 (2011).
  5. A. H. Gnauck, P. J. Winzer, A. Konczykowska, F. Jorge, J.-Y. Dupuy, M. Riet, G. Charlet, B. Zhu, D. W. Peckham, "Generation and transmission of 21.4-Gbaud PDM 64-QAM using a novel high-power DAC driving a single I/Q modulator," J. Lightw. Technol. 30, 532-536 (2012).
  6. S. Chandrasekhar, X. Liu, "Experimental investigation on the performance of closely spaced multi-carrier PDM-QPSK with digital coherent detection," Opt. Exp. 17, 21350-21361 (2009).
  7. B. Zhu, X. Liu, S. Chandrasekhar, D. W. Peckham, R. Lingle, Jr."Ultra-long-haul transmission of 1.2-Tb/s multicarrier no-guard-interval CO-OFDM superchannel using ultra-large-area fiber," IEEE Photon. Technol. Lett. 22, 826-828 (2010).
  8. A. Sano, E. Yamada, H. Masuda, E. Yamazaki, T. Kobayashi, E. Yoshida, Y. Miyamoto, R. Kudo, K. Ishihara, Y. Takatori, "No-guard-interval coherent optical OFDM for 100-Gb/s long-haul WDM transmission," J. Lightw. Technol. 27, 3705-3713 (2009).
  9. G. Bosco, A. Carena, V. Curri, P. Poggiolini, F. Forghieri, "Performance limits of Nyquist-WDM and CO-OFDM in high-speed PM-QPSK systems," IEEE Photon. Technol. Lett. 22, 1129-1131 (2010).
  10. M. Yan, Z. Tao, W. Yan, L. Li, T. Hoshida, J. C. Rasmussen, "Experimental comparison of no-guard-interval-OFDM and Nyquist-WDM superchannels," Opt. Fiber Commun. Conf./Nat. Fiber Opt. Eng. Conf. Los AngelesCA (2012) Paper OTh1B.2.
  11. J. Yu, Z. Dong, N. Chi, "1.96 Tb/s (21 × 100 Gb/s) OFDM optical signal generation and transmission over 3200-km fiber," IEEE Photon. Technol. Lett. 23, 1061-1063 (2011).
  12. J. Li, E. Tipsuwannakul, T. Eriksson, M. Karlsson, P. A. Andrekson, "Approaching Nyquist limit in WDM systems by low-complexity receiver-side duobinary shaping," J. Lightw. Technol. 30, 1664-1676 (2012).
  13. J. Yu, Z. Dong, H.-C. Chien, Z. Jia, D. Huo, H. Yi, M. Li, Z. Ren, N. Lu, L. Xie, K. Liu, X. Zhang, Y. Xia, Y. Cai, M. Gunkel, P. Wagner, H. Mayer, A. Schippel, "Field trial Nyquist-WDM transmission of 8 × 216.4 Gb/s PDM-CSRZ-QPSK exceeding 4 b/s/Hz spectral efficiency," Opt. Fiber Commun. Conf./Nat. Fiber Opt. Eng. Conf. Los AngelesCA (2012) Paper PDP5D.3.

2012 (4)

C. Xie, G. Raybon, P. J. Winzer, "Transmission of mixed 224-Gb/s and 112-Gb/s PDM-QPSK at 50-GHz channel spacing over 1200-km dispersion-managed LEAF® spans and three ROADMs," J. Lightw. Technol. 30, 547-552 (2012).

J.-X. Cai, C. R. Davidson, A. Lucero, H. Zhang, D. G. Foursa, O. V. Sinkin, W. W. Patterson, A. N. Pilipetskii, G. Mohs, N. S. Bergano, "20 Tbit/s transmission over 6860 km with sub-Nyquist channel spacing," J. Lightw. Technol. 30, 651-657 (2012).

A. H. Gnauck, P. J. Winzer, A. Konczykowska, F. Jorge, J.-Y. Dupuy, M. Riet, G. Charlet, B. Zhu, D. W. Peckham, "Generation and transmission of 21.4-Gbaud PDM 64-QAM using a novel high-power DAC driving a single I/Q modulator," J. Lightw. Technol. 30, 532-536 (2012).

J. Li, E. Tipsuwannakul, T. Eriksson, M. Karlsson, P. A. Andrekson, "Approaching Nyquist limit in WDM systems by low-complexity receiver-side duobinary shaping," J. Lightw. Technol. 30, 1664-1676 (2012).

2011 (2)

J. Yu, Z. Dong, N. Chi, "1.96 Tb/s (21 × 100 Gb/s) OFDM optical signal generation and transmission over 3200-km fiber," IEEE Photon. Technol. Lett. 23, 1061-1063 (2011).

X. Zhou, J. Yu, M.-F. Huang, Y. Shao, T. Wang, L. Nelson, P. Magill, M. Birk, P. I. Borel, D. W. Peckham, R. Lingle, B. Zhu, "64-Tb/s, 8 b/s/Hz, PDM-36QAM transmission over 320 km using both pre- and post-transmission digital signal processing," J. Lightw. Technol. 29, 571-577 (2011).

2010 (3)

B. Zhu, X. Liu, S. Chandrasekhar, D. W. Peckham, R. Lingle, Jr."Ultra-long-haul transmission of 1.2-Tb/s multicarrier no-guard-interval CO-OFDM superchannel using ultra-large-area fiber," IEEE Photon. Technol. Lett. 22, 826-828 (2010).

M. Birk, P. Gerard, R. Curto, L. E. Nelson, X. Zhou, P. Magill, T. J. Schmidt, C. Malouin, B. Zhang, E. Ibragimov, S. Khatana, M. Glavanovic, R. Loand, R. Marcoccia, R. Saunders, G. Nicholl, M. Nowell, F. Forghieri, "Coherent 100 Gb/s PM-QPSK field trial," IEEE Commun. Mag. 48, 52-60 (2010).

G. Bosco, A. Carena, V. Curri, P. Poggiolini, F. Forghieri, "Performance limits of Nyquist-WDM and CO-OFDM in high-speed PM-QPSK systems," IEEE Photon. Technol. Lett. 22, 1129-1131 (2010).

2009 (2)

A. Sano, E. Yamada, H. Masuda, E. Yamazaki, T. Kobayashi, E. Yoshida, Y. Miyamoto, R. Kudo, K. Ishihara, Y. Takatori, "No-guard-interval coherent optical OFDM for 100-Gb/s long-haul WDM transmission," J. Lightw. Technol. 27, 3705-3713 (2009).

S. Chandrasekhar, X. Liu, "Experimental investigation on the performance of closely spaced multi-carrier PDM-QPSK with digital coherent detection," Opt. Exp. 17, 21350-21361 (2009).

IEEE Commun. Mag. (1)

M. Birk, P. Gerard, R. Curto, L. E. Nelson, X. Zhou, P. Magill, T. J. Schmidt, C. Malouin, B. Zhang, E. Ibragimov, S. Khatana, M. Glavanovic, R. Loand, R. Marcoccia, R. Saunders, G. Nicholl, M. Nowell, F. Forghieri, "Coherent 100 Gb/s PM-QPSK field trial," IEEE Commun. Mag. 48, 52-60 (2010).

IEEE Photon. Technol. Lett. (1)

G. Bosco, A. Carena, V. Curri, P. Poggiolini, F. Forghieri, "Performance limits of Nyquist-WDM and CO-OFDM in high-speed PM-QPSK systems," IEEE Photon. Technol. Lett. 22, 1129-1131 (2010).

IEEE Photon. Technol. Lett. (2)

B. Zhu, X. Liu, S. Chandrasekhar, D. W. Peckham, R. Lingle, Jr."Ultra-long-haul transmission of 1.2-Tb/s multicarrier no-guard-interval CO-OFDM superchannel using ultra-large-area fiber," IEEE Photon. Technol. Lett. 22, 826-828 (2010).

J. Yu, Z. Dong, N. Chi, "1.96 Tb/s (21 × 100 Gb/s) OFDM optical signal generation and transmission over 3200-km fiber," IEEE Photon. Technol. Lett. 23, 1061-1063 (2011).

J. Lightw. Technol. (1)

A. Sano, E. Yamada, H. Masuda, E. Yamazaki, T. Kobayashi, E. Yoshida, Y. Miyamoto, R. Kudo, K. Ishihara, Y. Takatori, "No-guard-interval coherent optical OFDM for 100-Gb/s long-haul WDM transmission," J. Lightw. Technol. 27, 3705-3713 (2009).

J. Lightw. Technol. (5)

C. Xie, G. Raybon, P. J. Winzer, "Transmission of mixed 224-Gb/s and 112-Gb/s PDM-QPSK at 50-GHz channel spacing over 1200-km dispersion-managed LEAF® spans and three ROADMs," J. Lightw. Technol. 30, 547-552 (2012).

J.-X. Cai, C. R. Davidson, A. Lucero, H. Zhang, D. G. Foursa, O. V. Sinkin, W. W. Patterson, A. N. Pilipetskii, G. Mohs, N. S. Bergano, "20 Tbit/s transmission over 6860 km with sub-Nyquist channel spacing," J. Lightw. Technol. 30, 651-657 (2012).

X. Zhou, J. Yu, M.-F. Huang, Y. Shao, T. Wang, L. Nelson, P. Magill, M. Birk, P. I. Borel, D. W. Peckham, R. Lingle, B. Zhu, "64-Tb/s, 8 b/s/Hz, PDM-36QAM transmission over 320 km using both pre- and post-transmission digital signal processing," J. Lightw. Technol. 29, 571-577 (2011).

A. H. Gnauck, P. J. Winzer, A. Konczykowska, F. Jorge, J.-Y. Dupuy, M. Riet, G. Charlet, B. Zhu, D. W. Peckham, "Generation and transmission of 21.4-Gbaud PDM 64-QAM using a novel high-power DAC driving a single I/Q modulator," J. Lightw. Technol. 30, 532-536 (2012).

J. Li, E. Tipsuwannakul, T. Eriksson, M. Karlsson, P. A. Andrekson, "Approaching Nyquist limit in WDM systems by low-complexity receiver-side duobinary shaping," J. Lightw. Technol. 30, 1664-1676 (2012).

Opt. Exp. (1)

S. Chandrasekhar, X. Liu, "Experimental investigation on the performance of closely spaced multi-carrier PDM-QPSK with digital coherent detection," Opt. Exp. 17, 21350-21361 (2009).

Other (2)

M. Yan, Z. Tao, W. Yan, L. Li, T. Hoshida, J. C. Rasmussen, "Experimental comparison of no-guard-interval-OFDM and Nyquist-WDM superchannels," Opt. Fiber Commun. Conf./Nat. Fiber Opt. Eng. Conf. Los AngelesCA (2012) Paper OTh1B.2.

J. Yu, Z. Dong, H.-C. Chien, Z. Jia, D. Huo, H. Yi, M. Li, Z. Ren, N. Lu, L. Xie, K. Liu, X. Zhang, Y. Xia, Y. Cai, M. Gunkel, P. Wagner, H. Mayer, A. Schippel, "Field trial Nyquist-WDM transmission of 8 × 216.4 Gb/s PDM-CSRZ-QPSK exceeding 4 b/s/Hz spectral efficiency," Opt. Fiber Commun. Conf./Nat. Fiber Opt. Eng. Conf. Los AngelesCA (2012) Paper PDP5D.3.

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