Abstract

We discuss the use of a coherent digital receiver for the compensation of linear transmission impairments and polarization demultiplexing in a transmission system compatible with a future 100-Gb/s Ethernet standard. We present experimental results on the transmission performance of 111 Gbit/s POLMUX-RZ-DQPSK. For a dense WDM setup with channels carrying 111 Gbit/s with a 50 GHz channel spacing (2.0 bits/s/Hz), we show the feasibility of 2375 km transmission. This is enabled through coherent detection which results in excellent noise performance, and subsequent electronic equalization which provides the high tolerance to polarization mode dispersion and chromatic dispersion (CD). Furthermore, we discuss the impact of sampling and digital signal processing with either 1 or 2 samples/bit. We show that when combined with low-pass electrical filtering, 1sample/bit signal processing is sufficient to obtain a large tolerance towards CD. The proposed modulation and detection techniques enable 111 Gbit/s transmission that is directly compatible with the existing 10 Gbit/s infrastructure.

© 2007 IEEE

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  1. J. H. Sinksy, A. Adamiecki, L. Buhl, G. Raybon, P. Winzer, O. Wohlgemuth, M. Duelk, C. R. Doerr, A. Umbach, H.-G. Bach, D. Schmidt, "107-Gbit/s opto-electronic receiver with hybrid integrated photodetector and demultiplexer," Proc. OFC2007 (2007).
  2. P. J. Winzer, G. Raybon, C. R. Doerr, M. Duelk, C. Dorrer, "107-Gb/s optical signal generation using electronic time-division multiplexing," J. Lightw. Technol. 24, (2006).
  3. M. Daikoku, I. Morita, H. Taga, H. Tanaka, T. Kawanishi, T. Sakamoto, T. Miyazaki, T. Fujita, "100-Gb/s DQPSK transmission experiment without OTDM for 100G ethernet transport," J. Lightw. Technol. 25, (2007).
  4. 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 x 107-Gb/s RZ-DQPSK," Proc. ECOC2006 (2006).
  5. A. Färbert, S. Langenbach, N. Stojanovic, C. Dorschky, T. Kupfer, C. Schulien, J.-P. Elbers, H. Wernz, H. Griesser, C. Glingener, "Performance of a 10.7 Gb/s receiver with digital equalizer using maximum likelihood sequence estimation," Proc. ECOC2004 (2004).
  6. T. Kupfer, J. Whiteaway, S. Langenbach, "PMD compensation using electronic equalization particular maximum likelihood sequence estimation," Proc. OFC2007 (2007).
  7. S. J. Savory, A. D. Stewart, S. Wood, G. Gavioli, M. G. Taylor, R. I. Killey, P. Bayvel, "Digital equalisation of 40 Gbit/s per wavelength transmission over 2480 km of standard fibre without optical dispersion compensation," ECOC 2006 (2006).
  8. D.-S. Ly-Gagnon, S. Tsukamoto, K. Katoh, K. Kikuchi, "Coherent detection of optical quadrature phase-shift keying signals with carrier phase estimation," J. Lightw. Technol. 24, (2006).
  9. B. Spinnler, P. M. Krummrich, E.-D. Schmidt, "Chromatic dispersion tolerance of coherent optical communications systems with electrical equalization," Proc. OFC2006 (2006).
  10. M. G. Taylor, "Coherent detection method using DSP for demodulation of signal and subsequent equalization of propagation impairments," IEEE Photon. Technol. Lett. 16, (2004).
  11. 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," OFC2007 (2007).
  12. C. Laperle, B. Villeneuve, Z. Zhang, D. McGhan, H. Sun, M. O'Sullivan, "Wavelength division multiplexing (WDM) and polarization mode dispersion (PMD) performance of a coherent 40 Gbit/s dual-polarization quadrature phase shift keying (DP-QPSK) transceiver," Proc. OFC2007 (2007).
  13. P. J. Anslow, C. R. S. Fludger, S. Savory, I. Hardcastle, J. Fells, "Frequency selective coherent receiver for agile networks," ECOC2006 (2006).
  14. D. van den Borne, T. Duthel, C. R. S. Fludger, E. D. Schmidt, T. Wuth, C. Schulien, E. Gottwald, G. D. Khoe, H. de Waardt, "Electrical PMD compensation in 43-Gb/s POLMUX-NRZ-DQPSK enabled by coherent detection and equalization," Proc. ECOC2007 (2007).
  15. J. W. M. Bergmans, Digital Baseband Transmission and Recording (Kluwer Academic, 1996).
  16. S. J. Savory, G. Gavioli, R. I. Killey, P. Bayvel, "Transmission of 42.8 Gbit/s polarization multiplexed NRZ-QPSK over 6400 km of standard fiber with no optical dispersion compensation," Proc. OFC2007 (2007).
  17. 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).
  18. A. Leven, "Frequency estimation in intradyne reception," IEEE Photon. Technol. Lett. 19, (2007).
  19. T. Duthel, C. R. S. Fludger, D. van den Borne, C. Schulien, E.-D. Schmidt, T. Wuth, E. de Man, G.-D. Khoe, H. de Waardt, "Impairment tolerance of 111 Gbit/s POLMUX-RZ-DQPSK using a reduced complexity coherent receiver with a Tspaced equalizer," Proc. ECOC2007 (2007).
  20. G. P. Agrawal, Nonlinear Fiber Optics (Academic, 1995) pp. 243-247.
  21. M. N. Islam, Raman Amplifiers for Telecommunications 2 (Springer, 2004) pp. 603-611.
  22. D. van den Borne, T. Duthel, C. R. S. Fludger, E.-D. Schmidt, T. Wuth, C. Schulien, E. Gottwald, G. D. Khoe, H. de Waardt, "Carrier phase estimation for coherent equalization of 43-Gb/s POLMUX-NRZ-DQPSK transmission with 10.7 Gb/s NRZ neighbours," Proc. ECOC2007 (2007).
  23. J. G. Proakis, Digital Communications (McGraw-Hill, 2000) pp. 271-272.

2007 (2)

M. Daikoku, I. Morita, H. Taga, H. Tanaka, T. Kawanishi, T. Sakamoto, T. Miyazaki, T. Fujita, "100-Gb/s DQPSK transmission experiment without OTDM for 100G ethernet transport," J. Lightw. Technol. 25, (2007).

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

2006 (2)

P. J. Winzer, G. Raybon, C. R. Doerr, M. Duelk, C. Dorrer, "107-Gb/s optical signal generation using electronic time-division multiplexing," J. Lightw. Technol. 24, (2006).

D.-S. Ly-Gagnon, S. Tsukamoto, K. Katoh, K. Kikuchi, "Coherent detection of optical quadrature phase-shift keying signals with carrier phase estimation," J. Lightw. Technol. 24, (2006).

2004 (1)

M. G. Taylor, "Coherent detection method using DSP for demodulation of signal and subsequent equalization of propagation impairments," IEEE Photon. Technol. Lett. 16, (2004).

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).

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).

IEEE Photon. Technol. Lett. (2)

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

M. G. Taylor, "Coherent detection method using DSP for demodulation of signal and subsequent equalization of propagation impairments," IEEE Photon. Technol. Lett. 16, (2004).

J. Lightw. Technol. (3)

P. J. Winzer, G. Raybon, C. R. Doerr, M. Duelk, C. Dorrer, "107-Gb/s optical signal generation using electronic time-division multiplexing," J. Lightw. Technol. 24, (2006).

M. Daikoku, I. Morita, H. Taga, H. Tanaka, T. Kawanishi, T. Sakamoto, T. Miyazaki, T. Fujita, "100-Gb/s DQPSK transmission experiment without OTDM for 100G ethernet transport," J. Lightw. Technol. 25, (2007).

D.-S. Ly-Gagnon, S. Tsukamoto, K. Katoh, K. Kikuchi, "Coherent detection of optical quadrature phase-shift keying signals with carrier phase estimation," J. Lightw. Technol. 24, (2006).

Other (17)

B. Spinnler, P. M. Krummrich, E.-D. Schmidt, "Chromatic dispersion tolerance of coherent optical communications systems with electrical equalization," Proc. OFC2006 (2006).

J. H. Sinksy, A. Adamiecki, L. Buhl, G. Raybon, P. Winzer, O. Wohlgemuth, M. Duelk, C. R. Doerr, A. Umbach, H.-G. Bach, D. Schmidt, "107-Gbit/s opto-electronic receiver with hybrid integrated photodetector and demultiplexer," Proc. OFC2007 (2007).

T. Duthel, C. R. S. Fludger, D. van den Borne, C. Schulien, E.-D. Schmidt, T. Wuth, E. de Man, G.-D. Khoe, H. de Waardt, "Impairment tolerance of 111 Gbit/s POLMUX-RZ-DQPSK using a reduced complexity coherent receiver with a Tspaced equalizer," Proc. ECOC2007 (2007).

G. P. Agrawal, Nonlinear Fiber Optics (Academic, 1995) pp. 243-247.

M. N. Islam, Raman Amplifiers for Telecommunications 2 (Springer, 2004) pp. 603-611.

D. van den Borne, T. Duthel, C. R. S. Fludger, E.-D. Schmidt, T. Wuth, C. Schulien, E. Gottwald, G. D. Khoe, H. de Waardt, "Carrier phase estimation for coherent equalization of 43-Gb/s POLMUX-NRZ-DQPSK transmission with 10.7 Gb/s NRZ neighbours," Proc. ECOC2007 (2007).

J. G. Proakis, Digital Communications (McGraw-Hill, 2000) pp. 271-272.

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 x 107-Gb/s RZ-DQPSK," Proc. ECOC2006 (2006).

A. Färbert, S. Langenbach, N. Stojanovic, C. Dorschky, T. Kupfer, C. Schulien, J.-P. Elbers, H. Wernz, H. Griesser, C. Glingener, "Performance of a 10.7 Gb/s receiver with digital equalizer using maximum likelihood sequence estimation," Proc. ECOC2004 (2004).

T. Kupfer, J. Whiteaway, S. Langenbach, "PMD compensation using electronic equalization particular maximum likelihood sequence estimation," Proc. OFC2007 (2007).

S. J. Savory, A. D. Stewart, S. Wood, G. Gavioli, M. G. Taylor, R. I. Killey, P. Bayvel, "Digital equalisation of 40 Gbit/s per wavelength transmission over 2480 km of standard fibre without optical dispersion compensation," ECOC 2006 (2006).

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," OFC2007 (2007).

C. Laperle, B. Villeneuve, Z. Zhang, D. McGhan, H. Sun, M. O'Sullivan, "Wavelength division multiplexing (WDM) and polarization mode dispersion (PMD) performance of a coherent 40 Gbit/s dual-polarization quadrature phase shift keying (DP-QPSK) transceiver," Proc. OFC2007 (2007).

P. J. Anslow, C. R. S. Fludger, S. Savory, I. Hardcastle, J. Fells, "Frequency selective coherent receiver for agile networks," ECOC2006 (2006).

D. van den Borne, T. Duthel, C. R. S. Fludger, E. D. Schmidt, T. Wuth, C. Schulien, E. Gottwald, G. D. Khoe, H. de Waardt, "Electrical PMD compensation in 43-Gb/s POLMUX-NRZ-DQPSK enabled by coherent detection and equalization," Proc. ECOC2007 (2007).

J. W. M. Bergmans, Digital Baseband Transmission and Recording (Kluwer Academic, 1996).

S. J. Savory, G. Gavioli, R. I. Killey, P. Bayvel, "Transmission of 42.8 Gbit/s polarization multiplexed NRZ-QPSK over 6400 km of standard fiber with no optical dispersion compensation," Proc. OFC2007 (2007).

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