Abstract

We propose to employ 8B10B line coding as a simple technique to mitigate the impact of non-uniform laser diode FM response on the system performance of directly-modulated CPFSK. Experimental results show its effectiveness in decreasing signal distortion and penalty.

© 2008 Optical Society of America

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References

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  1. D. T. Schaafsma, E. Miles, and E. M. Bradley, "Comparison of conventional and gain-clamped semiconductor optical amplifiers for wavelength-division-multiplexed transmission systems," J. Lightwave Technol. 18, 922-925 (2000).
    [CrossRef]
  2. R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
    [CrossRef]
  3. B. Wedding, R. Jung, C. Haslach, and H. Söhnle, "10.7 Gbit/s FSK transmission with 61 dB power budget," Proceedings of ECOC2003, Vol. 4, paper Th1.5.5 (21-25 Sep. 2003).
  4. K. Emura, T. Ono, A. Noda, and S. Yamazaki, "Requirements for high-frequency LD FM response in an optical CPFSK heterodyne delay demodulation system," J. Lightwave Technol. 9, 1602-1608 (1991).
    [CrossRef]
  5. K. Iwashita and T. Matsumoto, "Modulation and detection characteristics of optical continuous phase FSK," J. Lightwave Technol. 5, 452-460 (1987).
    [CrossRef]
  6. S. P. Mazunder, R. Gangopadhay, E. Forestieri, and G. Prati, "Sensitivity penalty for AMI-coded," IEEE Photon. Technol. Lett. 7, 1207-1209 (1995).
  7. E. Forestieri and G. Prati, "Analysis of delay-and-multiply optical FSK receivers with line coding and non-flat laser FM response," IEEE J. Sel. Areas Commun. 13, 543-556 (1995).
    [CrossRef]
  8. A. X. Widmer and P. A. Franaszek, "A DC-balanced, partitioned-block, 8B/10B transmission code," IBM J. Res. Dev. 27, 440-451 (1983).
    [CrossRef]

2000

1995

S. P. Mazunder, R. Gangopadhay, E. Forestieri, and G. Prati, "Sensitivity penalty for AMI-coded," IEEE Photon. Technol. Lett. 7, 1207-1209 (1995).

E. Forestieri and G. Prati, "Analysis of delay-and-multiply optical FSK receivers with line coding and non-flat laser FM response," IEEE J. Sel. Areas Commun. 13, 543-556 (1995).
[CrossRef]

1991

K. Emura, T. Ono, A. Noda, and S. Yamazaki, "Requirements for high-frequency LD FM response in an optical CPFSK heterodyne delay demodulation system," J. Lightwave Technol. 9, 1602-1608 (1991).
[CrossRef]

1987

K. Iwashita and T. Matsumoto, "Modulation and detection characteristics of optical continuous phase FSK," J. Lightwave Technol. 5, 452-460 (1987).
[CrossRef]

1984

R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
[CrossRef]

1983

A. X. Widmer and P. A. Franaszek, "A DC-balanced, partitioned-block, 8B/10B transmission code," IBM J. Res. Dev. 27, 440-451 (1983).
[CrossRef]

Bradley, E. M.

Devlin, W. J.

R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
[CrossRef]

Emura, K.

K. Emura, T. Ono, A. Noda, and S. Yamazaki, "Requirements for high-frequency LD FM response in an optical CPFSK heterodyne delay demodulation system," J. Lightwave Technol. 9, 1602-1608 (1991).
[CrossRef]

Forestieri, E.

S. P. Mazunder, R. Gangopadhay, E. Forestieri, and G. Prati, "Sensitivity penalty for AMI-coded," IEEE Photon. Technol. Lett. 7, 1207-1209 (1995).

E. Forestieri and G. Prati, "Analysis of delay-and-multiply optical FSK receivers with line coding and non-flat laser FM response," IEEE J. Sel. Areas Commun. 13, 543-556 (1995).
[CrossRef]

Franaszek, P. A.

A. X. Widmer and P. A. Franaszek, "A DC-balanced, partitioned-block, 8B/10B transmission code," IBM J. Res. Dev. 27, 440-451 (1983).
[CrossRef]

Gangopadhay, R.

S. P. Mazunder, R. Gangopadhay, E. Forestieri, and G. Prati, "Sensitivity penalty for AMI-coded," IEEE Photon. Technol. Lett. 7, 1207-1209 (1995).

Harmon, R. A.

R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
[CrossRef]

Hodgkinson, T. G.

R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
[CrossRef]

Iwashita, K.

K. Iwashita and T. Matsumoto, "Modulation and detection characteristics of optical continuous phase FSK," J. Lightwave Technol. 5, 452-460 (1987).
[CrossRef]

Matsumoto, T.

K. Iwashita and T. Matsumoto, "Modulation and detection characteristics of optical continuous phase FSK," J. Lightwave Technol. 5, 452-460 (1987).
[CrossRef]

Mazunder, S. P.

S. P. Mazunder, R. Gangopadhay, E. Forestieri, and G. Prati, "Sensitivity penalty for AMI-coded," IEEE Photon. Technol. Lett. 7, 1207-1209 (1995).

Miles, E.

Noda, A.

K. Emura, T. Ono, A. Noda, and S. Yamazaki, "Requirements for high-frequency LD FM response in an optical CPFSK heterodyne delay demodulation system," J. Lightwave Technol. 9, 1602-1608 (1991).
[CrossRef]

Ono, T.

K. Emura, T. Ono, A. Noda, and S. Yamazaki, "Requirements for high-frequency LD FM response in an optical CPFSK heterodyne delay demodulation system," J. Lightwave Technol. 9, 1602-1608 (1991).
[CrossRef]

Prati, G.

S. P. Mazunder, R. Gangopadhay, E. Forestieri, and G. Prati, "Sensitivity penalty for AMI-coded," IEEE Photon. Technol. Lett. 7, 1207-1209 (1995).

E. Forestieri and G. Prati, "Analysis of delay-and-multiply optical FSK receivers with line coding and non-flat laser FM response," IEEE J. Sel. Areas Commun. 13, 543-556 (1995).
[CrossRef]

Schaafsma, D. T.

Smith, D. W.

R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
[CrossRef]

Widmer, A. X.

A. X. Widmer and P. A. Franaszek, "A DC-balanced, partitioned-block, 8B/10B transmission code," IBM J. Res. Dev. 27, 440-451 (1983).
[CrossRef]

Wyatt, R.

R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
[CrossRef]

Yamazaki, S.

K. Emura, T. Ono, A. Noda, and S. Yamazaki, "Requirements for high-frequency LD FM response in an optical CPFSK heterodyne delay demodulation system," J. Lightwave Technol. 9, 1602-1608 (1991).
[CrossRef]

Electron. Lett.

R. Wyatt, D. W. Smith, T. G. Hodgkinson, R. A. Harmon, and W. J. Devlin, "140 Mbit/s optical FSK fibre heterodyne experiment at 1.54 μm," Electron. Lett. 20, 912-913 (1984).
[CrossRef]

IBM J. Res. Dev.

A. X. Widmer and P. A. Franaszek, "A DC-balanced, partitioned-block, 8B/10B transmission code," IBM J. Res. Dev. 27, 440-451 (1983).
[CrossRef]

IEEE J. Sel. Areas Commun.

E. Forestieri and G. Prati, "Analysis of delay-and-multiply optical FSK receivers with line coding and non-flat laser FM response," IEEE J. Sel. Areas Commun. 13, 543-556 (1995).
[CrossRef]

IEEE Photonics Technol. Lett.

S. P. Mazunder, R. Gangopadhay, E. Forestieri, and G. Prati, "Sensitivity penalty for AMI-coded," IEEE Photon. Technol. Lett. 7, 1207-1209 (1995).

J. Lightwave Technol.

D. T. Schaafsma, E. Miles, and E. M. Bradley, "Comparison of conventional and gain-clamped semiconductor optical amplifiers for wavelength-division-multiplexed transmission systems," J. Lightwave Technol. 18, 922-925 (2000).
[CrossRef]

K. Emura, T. Ono, A. Noda, and S. Yamazaki, "Requirements for high-frequency LD FM response in an optical CPFSK heterodyne delay demodulation system," J. Lightwave Technol. 9, 1602-1608 (1991).
[CrossRef]

K. Iwashita and T. Matsumoto, "Modulation and detection characteristics of optical continuous phase FSK," J. Lightwave Technol. 5, 452-460 (1987).
[CrossRef]

Other

B. Wedding, R. Jung, C. Haslach, and H. Söhnle, "10.7 Gbit/s FSK transmission with 61 dB power budget," Proceedings of ECOC2003, Vol. 4, paper Th1.5.5 (21-25 Sep. 2003).

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Figures (6)

Fig. 1.
Fig. 1.

Spectra of an uncoded PRBS (solid line) and of a 8B10B coded PRBS (dashed line): the 8B10B coded sequence shows reduced levels at low frequencies.

Fig. 2.
Fig. 2.

Experimental set-up for BER vs. OSNR measurements using the noise loading technique.

Fig. 3.
Fig. 3.

Experimental results: BER vs. OSNR in back-to-back condition using Vpp=1.5 V. Comparison between PRBSs of different length and a 8B10B 220-1 coded sequence.

Fig. 4.
Fig. 4.

Sensitivity vs. modulation signal amplitude (Vpp). Comparison between measurements, carried out with a 27-1 PRBS sequence and a 8B10B 220-1 coded one, and simulation.

Fig. 5.
Fig. 5.

Sensitivity vs. link length, using SMF fiber with D=17 ps/nm/km. Comparison between experimental results obtained using the 8B10B 220-1 coding and simulation.

Fig. 6.
Fig. 6.

Eye diagrams measured at BER=10-6 when using the 8B10B coding with optimum driving voltage Vpp=1.5V. Top: L=0 km. Bottom: L=63 km. Time base scale: 20 ps/div. Amplitude scale: 35 mV/div.

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