Abstract

We propose a rate-adaptive optical transmission scheme using variable-rate forward error correction (FEC) codes and variable-size constellations at a fixed symbol rate, quantifying how achievable bit rates vary with distance. The scheme uses serially concatenated Reed–Solomon codes and an inner repetition code to vary the code rate, combined with single-carrier polarization-multiplexed <i>M</i>-ary quadrature amplitude modulation with variable <i>M</i> and digital coherent detection. Employing <i>M</i> = 4, 8, 16, the scheme achieves a maximum bit rate of 200 Gb/s in a nominal 50-GHz channel bandwidth. A rate adaptation algorithm uses the signal-to-noise ratio (SNR) or the FEC decoder input bit-error ratio (BER) estimated by a receiver to determine the FEC code rate and constellation size that maximizes the information bit rate while yielding a target FEC decoder output BER and a specified SNR margin. We simulate single-channel transmission through long-haul fiber systems with or without inline chromatic dispersion compensation, incorporating numerous optical switches, evaluating the impact of fiber nonlinearity and bandwidth narrowing. With zero SNR margin, we achieve bit rates of 200/100/50 Gb/s over distances of 640/2080/3040 km and 1120/3760/5440 km in dispersion-compensated and dispersion-uncompensated systems, respectively. Compared to an ideal coding scheme, the proposed scheme exhibits a performance gap ranging from about 6.4 dB at 640 km to 7.6 dB at 5040 km in compensated systems, and from about 6.6 dB at 1120 km to 7.5 dB at 7600 km in uncompensated systems. We present limited simulations of three-channel transmission, showing that interchannel nonlinearities decrease achievable distances by about 10% and 7% for dispersion-compensated and dispersion-uncompensated systems, respectively.

© 2012 IEEE

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  1. J. McDonough, "Moving standards to 100 GbE and beyond," IEEE Appl. Practice 45, 6-9 (2007).
  2. Interfaces for Optical Transport Network, ITU-T G.709 Dec., 2009.
  3. G. Gho, L. Klak, J. M. Kahn, "Rate-adaptive coding for optical fiber transmission systems," J. Lightw. Technol. 29, 222-233 (2011).
  4. E. Ip, J. M. Kahn, "Carrier synchronization for 3- and 4-bit-per-symbol optical transmission," J. Lightw. Technol. 23, 4110-4124 (2005).
  5. P. K. Vitthaladevuni, M.-S. Alouini, J. C. Kieffer, "Exact BER computation for cross QAM constellations," IEEE Trans. Wireless Commun. 4, 3039-3050 (2005).
  6. Forward Error Correction for Submarine Systems, ITU-T G.975, Nov., 1996.
  7. Forward Error Correction for High Bit-Rate DWDM Submarine Systems, ITU-T G.975.1, Feb., 2004.
  8. J. G. Proakis, Digital Communications (McGraw-Hill, 2007).
  9. E. Ip, J. M. Kahn, "Digital equalization of chromatic dispersion and polarization mode dispersion," J. Lightw. Technol. 25, 2033-2043 (2007).
  10. O. V. Sinkin, R. Holzlöhner, J. Zweck, C. R. Menyuk, "Optimization of the split-step Fourier method in modeling optical-fiber communications systems," J. Lightw. Technol. 21, 61-68 (2003).
  11. R.-J. Essiambre, G. Kramer, P. J. Winzer, G. J. Foschini, B. Goebel, "Capacity limits of optical fiber networks," J. Lightw. Technol. 28, 662-701 (2010).
  12. E. Desurvire, Erbium-Doped Fiber Amplifiers: Principles and Applications (Wiley, 1994).
  13. G. P. Agrawal, Fiber-Optic Communication Systems (Wiley, 2002).
  14. E. Ip, J. M. Kahn, "Feed-forward carrier recovery for coherent optical communications," J. Lightw. Technol. 25, 2675-2692 (2007).
  15. W. Shieh, K.-P. Ho, "Equalization-enhanced phase noise for coherent-detection systems using electronic digital signal processing," Opt. Exp. 16, 15718-15727 (2008).
  16. J. P. Wilde, G. W. Yoffe, J. M. Kahn, "Frequency noise characterization of a widely tunable narrow-linewidth DFB laser array source," presented at the Opt. Fiber Commun. Conf. San DiegoCA (2009).
  17. Q. Zhang, M. I. Hayee, "Symmetrized split-step Fourier scheme to control global simulation accuracy in fiber-optic communication systems," J. Lightw. Technol. 26, 302-316 (2008).
  18. O. Bertran-Pardo, J. Renaudier, G. Charlet, H. Mardoyan, P. Tran, S. Bigo, "Nonlinearity limitations when mixing 40-Gb/s coherent PDM-QPSK channels with preexisting 10-Gb/s NRZ channels," IEEE Photon. Technol. Lett. 20, 1314-1316 (2008).
  19. C. Xia, D. van den Borne, "Impact of the channel count on the nonlinear tolerance in coherently-detected POLMUX-QPSK modulation," presented at the Opt. Fiber Commun. Conf./Nat. Fiber Opt. Eng. Conf. Los AngelesCA Paper OWO1.
  20. S. Pachnicke, A. Chachaj, M. Helf, P. M. Krummrich, "Fast parallel simulation of fiber optical communication systems accelerated by a graphics processing unit," presented at the Int. Conf. Transp. Opt. Netw. MunichGermany (2010) Paper Th.B1.5.

2011 (1)

G. Gho, L. Klak, J. M. Kahn, "Rate-adaptive coding for optical fiber transmission systems," J. Lightw. Technol. 29, 222-233 (2011).

2010 (1)

R.-J. Essiambre, G. Kramer, P. J. Winzer, G. J. Foschini, B. Goebel, "Capacity limits of optical fiber networks," J. Lightw. Technol. 28, 662-701 (2010).

2008 (3)

W. Shieh, K.-P. Ho, "Equalization-enhanced phase noise for coherent-detection systems using electronic digital signal processing," Opt. Exp. 16, 15718-15727 (2008).

Q. Zhang, M. I. Hayee, "Symmetrized split-step Fourier scheme to control global simulation accuracy in fiber-optic communication systems," J. Lightw. Technol. 26, 302-316 (2008).

O. Bertran-Pardo, J. Renaudier, G. Charlet, H. Mardoyan, P. Tran, S. Bigo, "Nonlinearity limitations when mixing 40-Gb/s coherent PDM-QPSK channels with preexisting 10-Gb/s NRZ channels," IEEE Photon. Technol. Lett. 20, 1314-1316 (2008).

2007 (3)

E. Ip, J. M. Kahn, "Feed-forward carrier recovery for coherent optical communications," J. Lightw. Technol. 25, 2675-2692 (2007).

E. Ip, J. M. Kahn, "Digital equalization of chromatic dispersion and polarization mode dispersion," J. Lightw. Technol. 25, 2033-2043 (2007).

J. McDonough, "Moving standards to 100 GbE and beyond," IEEE Appl. Practice 45, 6-9 (2007).

2005 (2)

E. Ip, J. M. Kahn, "Carrier synchronization for 3- and 4-bit-per-symbol optical transmission," J. Lightw. Technol. 23, 4110-4124 (2005).

P. K. Vitthaladevuni, M.-S. Alouini, J. C. Kieffer, "Exact BER computation for cross QAM constellations," IEEE Trans. Wireless Commun. 4, 3039-3050 (2005).

2003 (1)

O. V. Sinkin, R. Holzlöhner, J. Zweck, C. R. Menyuk, "Optimization of the split-step Fourier method in modeling optical-fiber communications systems," J. Lightw. Technol. 21, 61-68 (2003).

IEEE Photon. Technol. Lett. (1)

O. Bertran-Pardo, J. Renaudier, G. Charlet, H. Mardoyan, P. Tran, S. Bigo, "Nonlinearity limitations when mixing 40-Gb/s coherent PDM-QPSK channels with preexisting 10-Gb/s NRZ channels," IEEE Photon. Technol. Lett. 20, 1314-1316 (2008).

IEEE Appl. Practice (1)

J. McDonough, "Moving standards to 100 GbE and beyond," IEEE Appl. Practice 45, 6-9 (2007).

IEEE Trans. Wireless Commun. (1)

P. K. Vitthaladevuni, M.-S. Alouini, J. C. Kieffer, "Exact BER computation for cross QAM constellations," IEEE Trans. Wireless Commun. 4, 3039-3050 (2005).

J. Lightw. Technol. (3)

E. Ip, J. M. Kahn, "Carrier synchronization for 3- and 4-bit-per-symbol optical transmission," J. Lightw. Technol. 23, 4110-4124 (2005).

E. Ip, J. M. Kahn, "Digital equalization of chromatic dispersion and polarization mode dispersion," J. Lightw. Technol. 25, 2033-2043 (2007).

O. V. Sinkin, R. Holzlöhner, J. Zweck, C. R. Menyuk, "Optimization of the split-step Fourier method in modeling optical-fiber communications systems," J. Lightw. Technol. 21, 61-68 (2003).

J. Lightw. Technol. (1)

E. Ip, J. M. Kahn, "Feed-forward carrier recovery for coherent optical communications," J. Lightw. Technol. 25, 2675-2692 (2007).

J. Lightw. Technol. (3)

R.-J. Essiambre, G. Kramer, P. J. Winzer, G. J. Foschini, B. Goebel, "Capacity limits of optical fiber networks," J. Lightw. Technol. 28, 662-701 (2010).

G. Gho, L. Klak, J. M. Kahn, "Rate-adaptive coding for optical fiber transmission systems," J. Lightw. Technol. 29, 222-233 (2011).

Q. Zhang, M. I. Hayee, "Symmetrized split-step Fourier scheme to control global simulation accuracy in fiber-optic communication systems," J. Lightw. Technol. 26, 302-316 (2008).

Opt. Exp. (1)

W. Shieh, K.-P. Ho, "Equalization-enhanced phase noise for coherent-detection systems using electronic digital signal processing," Opt. Exp. 16, 15718-15727 (2008).

Other (9)

J. P. Wilde, G. W. Yoffe, J. M. Kahn, "Frequency noise characterization of a widely tunable narrow-linewidth DFB laser array source," presented at the Opt. Fiber Commun. Conf. San DiegoCA (2009).

C. Xia, D. van den Borne, "Impact of the channel count on the nonlinear tolerance in coherently-detected POLMUX-QPSK modulation," presented at the Opt. Fiber Commun. Conf./Nat. Fiber Opt. Eng. Conf. Los AngelesCA Paper OWO1.

S. Pachnicke, A. Chachaj, M. Helf, P. M. Krummrich, "Fast parallel simulation of fiber optical communication systems accelerated by a graphics processing unit," presented at the Int. Conf. Transp. Opt. Netw. MunichGermany (2010) Paper Th.B1.5.

E. Desurvire, Erbium-Doped Fiber Amplifiers: Principles and Applications (Wiley, 1994).

G. P. Agrawal, Fiber-Optic Communication Systems (Wiley, 2002).

Interfaces for Optical Transport Network, ITU-T G.709 Dec., 2009.

Forward Error Correction for Submarine Systems, ITU-T G.975, Nov., 1996.

Forward Error Correction for High Bit-Rate DWDM Submarine Systems, ITU-T G.975.1, Feb., 2004.

J. G. Proakis, Digital Communications (McGraw-Hill, 2007).

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