Abstract

In order to explore the potential of optical multilevel signaling for high-speed optical fiber networks, an incoherent 50Gbit/s 32-level optical multilevel signaling (combination of QASK and 8-DPSK) is demonstrated, for the first time. The application of an ISI-suppressed modulation technique, an orthogonally-coupled differential detection technique and the digital signal processing technique have also been proposed and verified to enhance the performance of multilevel signaling. A 100-km dispersion shifted fiber transmission has also been performed, and the degradation via optical fiber nonlinear effect, self-phase modulation (SPM), is observed. The receiver side simple digital cancellation technique of the SPM-induced phase shift is also proposed and experimentally demonstrated with more than 6.8dB increase of fiber input power.

© 2008 IEEE

PDF Article

References

  • View by:
  • |
  • |

  1. S. Walklin, J. Conradi, "Multilevel signaling for increasing the reach of 10 Gb/s lightwave systems," J. Lightw. Technol. 17, 2235-2248 (1999).
  2. J. M. Kahn, K.-P. Ho, "Spectral efficiency limits and modulation/detection techniques for DWDM systems," IEEE J. Sel. Topics Quantum Electron. 10, 259-272 (2004).
  3. N. Kikuchi, K. Sekine, S. Sasaki, "Multilevel signalling for high-speed optical transmission," Proc. 32nd Europ. Conf. Opt. Commun. (ECOC 2006) (2006).
  4. K.-P. Ho, Phase-Modulated Optical Communication Systems (Springer, 2005).
  5. N. Yoshikane, I. Morita, "1.14 b/s/Hz spectrally-efficient 50 x 85.4 Gb/s transmission over 300 km using copolarized CS-RZ DQPSK signals," Proc. Opt. Fiber Commun. Conf. (OFC) (2004).
  6. J. Hongou, K. Kasai, M. Yoshida, M. Nakazawa, "1 Gsymbol/s, 64 QAM coherent optical transmission over 150 km with a spectral efficiency of 3 Bit/s/Hz," Proc. Opt. Fiber Commun. Conf. (OFC/NFOFEC) (2007).
  7. K. Sekine, N. Kikuchi, S. Sasaki, S. Hayase, C. Hasegawa, T. Sugawara, "40 Gbit/s, 16-ary (4 bit/symbol) optical modulation/demodulation scheme," Inst. Elect. Eng. Electron. Lett. 41, 430-432 (2005).
  8. M. Serbay, T. Tokle, P. Jeppesen, W. Rosenkranz, "42.8 Gbit/s, 4 bits per symbol 16-ary inverse-RZ-QASK-DQPSK transmission experiment without polmux," Proc. Opt. Fiber Commun. Conf. (OFC/NFOFEC) (2006).
  9. S. Tsukamoto, K. Katoh, K. Kikuchi, "Coherent demodulation of optical 8-phase shift-keying signals using homodyne detection and digital signal processing," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2006).
  10. M. Serbay, C. Wree, W. Rosenkranz, "Experimental investigation of RZ-8DPSK at 3 x 10.7 Gb/s," Proc. 18th Ann. Meet. IEEE Lasers Electro-Opt. Soc. (2005).
  11. J. B. Jensen, T. Tokle, C. Peucheret, P. Jeppesen, "Transmission of multilevel 60 Gbit/s polarization multiplexed RZ-D8PSK using only 10 Gbit/s equipment," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2007).
  12. J. Hansryd, J. Howe, C. Xu, "Nonlinear crosstalk and compensation in QDPASK optical communication systems," IEEE Photon. Technol. Lett. 16, 1975-1977 (2004).
  13. K. Roberts, L. Chuandong, L. Strawczynski, M. O'Sullivan, I. Hardcastle, "Electronic precompensation of optical nonlinearity," IEEE Photon. Technol. Lett. 18, 403-405 (2006).
  14. K.-P. Ho, J. M. Kahn, "Electronic compensation technique to mitigate nonlinear phase noise," J. Lightw. Technol 22, 779-783 (2004).
  15. K. Kikuchi, M. Fukase, S.-Y. Kim, "Electronic post-compensation for nonlinear phase noise in a 1000-km 20-Gbit/s optical QPSK transmission system using the homodyne receiver with digital signal processing," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2007).
  16. N. Kikuchi, K. Mandai, S. Sasaki, K. Sekine, "Proposal and first experimental demonstration of digital incoherent optical field detector for chromatic dispersion compensation," Proc. 32nd Europ. Conf. Opt. Commun. (ECOC 2006) (2007).
  17. X. Liu, S. Chandrasekhar, A. H. Gnauck, C. R. Doerr, I. Kang, D. Kilper, L. L. Buhl, J. Centanni, "DSP-enabled compensation of demodulator phase error and sensitivity improvement in direct-detection 40-Gb/s DQPSK," Proc. 32nd Europ. Conf. Opt. Commun. (ECOC 2006) (2007).
  18. X. Liu, X. Wei, "Electronic dispersion compensation based on optical field reconstruction with orthogonal differential direct-detection and digital signal processing," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2007).
  19. N. Kikuchi, K. Mandai, K. Sekine, S. Sasaki, "First experimental demonstration of single-polarization 50-Gbit/s 32-level (QASK and 8-DPSK) incoherent optical multilevel transmission," Proc. Optical Fiber Commun. Conf. (OFC/NFOEC) (2007).
  20. N. Kikuchi, "Inter-symbol interference (ISI) suppression technique for optical binary and multilevel signal generation," J. Lightw. Technol. 25, 2060-2068 (2007).
  21. X. Liu, "Generalized data-aided multi-symbol phase estimation for improving receiver sensitivity in direct-detection optical m-ary DPSK," Opt. Express 15, 2927-2939 (2007).
  22. N. Kikuchi, K. Mandai, S. Sasaki, "Compensation of nonlinear phase-shift in incoherent multilevel receiver with digital signal processing," Proc. 33rd Europ. Conf. Opt. Commun. (ECOC 2007) (2007).

2007 (2)

N. Kikuchi, "Inter-symbol interference (ISI) suppression technique for optical binary and multilevel signal generation," J. Lightw. Technol. 25, 2060-2068 (2007).

X. Liu, "Generalized data-aided multi-symbol phase estimation for improving receiver sensitivity in direct-detection optical m-ary DPSK," Opt. Express 15, 2927-2939 (2007).

2006 (1)

K. Roberts, L. Chuandong, L. Strawczynski, M. O'Sullivan, I. Hardcastle, "Electronic precompensation of optical nonlinearity," IEEE Photon. Technol. Lett. 18, 403-405 (2006).

2005 (1)

K. Sekine, N. Kikuchi, S. Sasaki, S. Hayase, C. Hasegawa, T. Sugawara, "40 Gbit/s, 16-ary (4 bit/symbol) optical modulation/demodulation scheme," Inst. Elect. Eng. Electron. Lett. 41, 430-432 (2005).

2004 (3)

J. Hansryd, J. Howe, C. Xu, "Nonlinear crosstalk and compensation in QDPASK optical communication systems," IEEE Photon. Technol. Lett. 16, 1975-1977 (2004).

J. M. Kahn, K.-P. Ho, "Spectral efficiency limits and modulation/detection techniques for DWDM systems," IEEE J. Sel. Topics Quantum Electron. 10, 259-272 (2004).

K.-P. Ho, J. M. Kahn, "Electronic compensation technique to mitigate nonlinear phase noise," J. Lightw. Technol 22, 779-783 (2004).

1999 (1)

S. Walklin, J. Conradi, "Multilevel signaling for increasing the reach of 10 Gb/s lightwave systems," J. Lightw. Technol. 17, 2235-2248 (1999).

J. Lightw. Technol. (1)

S. Walklin, J. Conradi, "Multilevel signaling for increasing the reach of 10 Gb/s lightwave systems," J. Lightw. Technol. 17, 2235-2248 (1999).

IEEE J. Sel. Topics Quantum Electron. (1)

J. M. Kahn, K.-P. Ho, "Spectral efficiency limits and modulation/detection techniques for DWDM systems," IEEE J. Sel. Topics Quantum Electron. 10, 259-272 (2004).

IEEE Photon. Technol. Lett. (2)

J. Hansryd, J. Howe, C. Xu, "Nonlinear crosstalk and compensation in QDPASK optical communication systems," IEEE Photon. Technol. Lett. 16, 1975-1977 (2004).

K. Roberts, L. Chuandong, L. Strawczynski, M. O'Sullivan, I. Hardcastle, "Electronic precompensation of optical nonlinearity," IEEE Photon. Technol. Lett. 18, 403-405 (2006).

Inst. Elect. Eng. Electron. Lett. (1)

K. Sekine, N. Kikuchi, S. Sasaki, S. Hayase, C. Hasegawa, T. Sugawara, "40 Gbit/s, 16-ary (4 bit/symbol) optical modulation/demodulation scheme," Inst. Elect. Eng. Electron. Lett. 41, 430-432 (2005).

J. Lightw. Technol. (1)

N. Kikuchi, "Inter-symbol interference (ISI) suppression technique for optical binary and multilevel signal generation," J. Lightw. Technol. 25, 2060-2068 (2007).

J. Lightw. Technol (1)

K.-P. Ho, J. M. Kahn, "Electronic compensation technique to mitigate nonlinear phase noise," J. Lightw. Technol 22, 779-783 (2004).

Opt. Express (1)

Other (14)

N. Kikuchi, K. Mandai, S. Sasaki, "Compensation of nonlinear phase-shift in incoherent multilevel receiver with digital signal processing," Proc. 33rd Europ. Conf. Opt. Commun. (ECOC 2007) (2007).

K. Kikuchi, M. Fukase, S.-Y. Kim, "Electronic post-compensation for nonlinear phase noise in a 1000-km 20-Gbit/s optical QPSK transmission system using the homodyne receiver with digital signal processing," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2007).

N. Kikuchi, K. Mandai, S. Sasaki, K. Sekine, "Proposal and first experimental demonstration of digital incoherent optical field detector for chromatic dispersion compensation," Proc. 32nd Europ. Conf. Opt. Commun. (ECOC 2006) (2007).

X. Liu, S. Chandrasekhar, A. H. Gnauck, C. R. Doerr, I. Kang, D. Kilper, L. L. Buhl, J. Centanni, "DSP-enabled compensation of demodulator phase error and sensitivity improvement in direct-detection 40-Gb/s DQPSK," Proc. 32nd Europ. Conf. Opt. Commun. (ECOC 2006) (2007).

X. Liu, X. Wei, "Electronic dispersion compensation based on optical field reconstruction with orthogonal differential direct-detection and digital signal processing," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2007).

N. Kikuchi, K. Mandai, K. Sekine, S. Sasaki, "First experimental demonstration of single-polarization 50-Gbit/s 32-level (QASK and 8-DPSK) incoherent optical multilevel transmission," Proc. Optical Fiber Commun. Conf. (OFC/NFOEC) (2007).

M. Serbay, T. Tokle, P. Jeppesen, W. Rosenkranz, "42.8 Gbit/s, 4 bits per symbol 16-ary inverse-RZ-QASK-DQPSK transmission experiment without polmux," Proc. Opt. Fiber Commun. Conf. (OFC/NFOFEC) (2006).

S. Tsukamoto, K. Katoh, K. Kikuchi, "Coherent demodulation of optical 8-phase shift-keying signals using homodyne detection and digital signal processing," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2006).

M. Serbay, C. Wree, W. Rosenkranz, "Experimental investigation of RZ-8DPSK at 3 x 10.7 Gb/s," Proc. 18th Ann. Meet. IEEE Lasers Electro-Opt. Soc. (2005).

J. B. Jensen, T. Tokle, C. Peucheret, P. Jeppesen, "Transmission of multilevel 60 Gbit/s polarization multiplexed RZ-D8PSK using only 10 Gbit/s equipment," Proc. Opt. Fiber Commun. Conf. (OFC/NFOEC) (2007).

N. Kikuchi, K. Sekine, S. Sasaki, "Multilevel signalling for high-speed optical transmission," Proc. 32nd Europ. Conf. Opt. Commun. (ECOC 2006) (2006).

K.-P. Ho, Phase-Modulated Optical Communication Systems (Springer, 2005).

N. Yoshikane, I. Morita, "1.14 b/s/Hz spectrally-efficient 50 x 85.4 Gb/s transmission over 300 km using copolarized CS-RZ DQPSK signals," Proc. Opt. Fiber Commun. Conf. (OFC) (2004).

J. Hongou, K. Kasai, M. Yoshida, M. Nakazawa, "1 Gsymbol/s, 64 QAM coherent optical transmission over 150 km with a spectral efficiency of 3 Bit/s/Hz," Proc. Opt. Fiber Commun. Conf. (OFC/NFOFEC) (2007).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.