Abstract

Employing spectrally efficient PolMux-RZ-8PSK modulation format and single-ended digital coherent detection technique, we demonstrate 8$\,\times\,$114-Gb/s DWDM transmission over 640 km of SSMF on a 25-GHz grid with record spectral efficiency of 4.2 bit/s/Hz, utilizing no optical dispersion compensation or Raman amplification. We show that the distortion caused by the direct square-law detection of the signal component with single-ended photo detection can be effectively mitigated by a novel DSP algorithm.

© 2009 IEEE

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2007 (1)

A. Leven, "Frequency estimation in intradyne reception," IEEE Photon. Technol. Lett. 19, (2007).

1983 (1)

A. J. Viterbi, A. M. Viterbi, "Nonlinear estimation of PSK-modulated carrier phase with application to burst digital transmission," IEEE Trans. Inf. Theory IT-29, (1983).

1980 (1)

D. N. Godard, "Self-recovering equalization and carrier tracking in two-dimensional data communication systems," IEEE Trans. Commun. COM-28, 1867-1875 (1980).

IEEE Photon. Technol. Lett. (1)

A. Leven, "Frequency estimation in intradyne reception," IEEE Photon. Technol. Lett. 19, (2007).

IEEE Trans. Commun. (1)

D. N. Godard, "Self-recovering equalization and carrier tracking in two-dimensional data communication systems," IEEE Trans. Commun. COM-28, 1867-1875 (1980).

IEEE Trans. Inf. Theory (1)

A. J. Viterbi, A. M. Viterbi, "Nonlinear estimation of PSK-modulated carrier phase with application to burst digital transmission," IEEE Trans. Inf. Theory IT-29, (1983).

Other (17)

G. Charlet, J. Renaudier, M. Salsi, H. Mardoyan, P. Tran, S. Bigo, "Efficient mitigation of fiber impairments in an ultra-long haul transmission of 40 Gbit/s polarization-multiplexed data by digital processing in a coherent receiver," Proc. OFC2007 (2007).

K. Schuh, B. Junginger, E. Lach, G. Veith, "1 Tb/s (10$\,\times\,$107 Gb/s ETDM) serial NRZ transmission over 480 km SSMF," Proc. OFC2007 (2007).

S. L. Jansen, R. H. Derksen, C. Schubert, X. Zhou, M. Birk, C.-J. Weiske, M. Bohn, D. van den Borne, P. M. Krummrich, M. Möller, F. Horst, B. J. Offrein, H. de Waardt, G. D. Khoe, A. Kirstädter, "107-Gb/s full-ETDM transmission over field installed fiber using vestigial sideband modulation," Proc. OFC2007 (2007).

K. Schuh, E. Lach, B. Junginger, A. Klekamp, G. Veith, "8$\,\times\,$107 Gbit/s serial binary NRZ/VSB transmission over 480 km SSMF with 1 bit/s/Hz spectral efficiency and without optical equalizer," Proc. ECOC2007 (2007).

P. J. Winzer, G. Raybon, S. Chandrasekhar, C. D. Doerr, T. Kawanishi, T. Sakamoto, K. Higuma, "10$\,\times\,$107 Gb/s NRZ-DQPSK transmission at 1.0 b/s/Hz over 12$\,\times\,$100 km including 6 optical routing nodes," Proc. OFC2007 (2007).

H. Masuda, A. Sano, T. Kobayashi, E. Yoshida, Y. Miyamoto, Y. Hibino, K. Hagimoto, T. Yamada, T. Furuta, H. Fukuyama, "20.4 Tb/s (204$\,\times\,$111 Gb/s) transmission over 240 km using bandwidth-maximized hybrid Raman/EDFAs," Proc. OFC2007 (2007).

P. J. Winzer, G. Raybon, C. R. Doerr, L. L. Buhl, T. Kawanishi, T. Sakamoto, M. Izutsu, K. Higuma, "2000-km WDM transmission of 10$\,\times\,$107-Gb/s RZ-DQPSK," ECOC2006 (2006).

X. Zhou, J. Yu, M. Du, G. Zhang, "2 Tb/s (20$\,\times\,$107 Gb/s) RZ-DQPSK straight-line transmission over 1005 km of standard single mode fiber (SSMF) without Raman amplification," Proc. OFC2008 (2008).

A. H. Gnauck, P. J. Winzer, L. L. Buhl, T. Kawanishi, T. Sakamoto, M. Izutsu, K. Higuma, "12.3-Tb/s C-band DQPSK transmission at 3.2 b/s/Hz spectral efficiency," Proc. ECOC 2006 .

S. Chandrasekhar, X. Liu, E. C. Burrowa, L. L. Buhl, "Hybrid 107 Gb/s polarization-multiplexed DQPSK and 42.7-Gb/s DQPSK transmission at 1.4-bits/Hz spectral efficiency over 1280 km of SSMF and 4 bandwidth-managed ROADMs," Proc. ECOC2007 (2007).

C. R. S. Fludger, T. Duthel, D. Van den Borne, C. Schulien, E. D. Schmidt, T. Wuth, E. De Man, G. D. Khoe, H. de Waardt, "10$\,\times\,$111 Gb/s, 50 GHz spaced, POLMUX-RZ-DQPSK transmission over 2375 employing coherent equalization," Proc. OFC2007 (2007).

G. Charlet, J. Renaudier, H. Mardoyan, P. Tran, O. B. Pardo, F. Verluise, M. Achouche, A. Boutin, F. Blache, J. Dupuy, S. Bigo, "Transmission of 16.4 Tbit/s Capacity over 2550 km using PDM QPSK modulation format and coherent receiver," Proc. OFC2008 (2008).

A. Sano, H. Masuda, E. Yoshida, T. Kobayashi, E. Yamada, Y. Miyamoto, "30$\,\times\,$100 Gb/s all-optical OFDM transmisión over 1300 km SMF with 10 ROADM nodes," Proc. ECOC2007 (2007).

S. L. Jansen, I. Morita, H. Tanaka, "10$\,\times\,$121.9-Gb/s PDM-OFDM transmission with 2-b/s/Hz spectral efficiency over 1000 km of SSMF," Proc. OFC2008 (2008).

M. Nakazawa, J. Hongo, K. Kasai, M. Yoshida, "Polarization-multiplexed 1 Gsymbol/s 64Q AM (12 Gb/s) coherent optical transmission over 150 km with an optical bandwidth of 2 GHz," Proc. OFC2007 (2007).

M. Seimetz, L. Molle, D.-D. Gross, B. Auth, R. Freund, "Coherent RZ-8PSK transmission at 30 Gb/s over 1200 km employing Homodyne detection with digital carrier phase estimation," Proc. ECOC2007 (2007).

S. J. Savory, V. Mikhailov, R. I. Killey, P. Bayvel, "Digital coherent receivers for uncompensated 42.8 Gbit/s transmission over high PMD fibre," Proc. ECOC2007 (2007).

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