Abstract

We experimentally demonstrate uncompensated 8-channel wavelength division multiplexing (WDM) and single channel transmission at 10.7 Gb/s over a 470 km hybrid fiber link with in-line semiconductor optical amplifiers (SOAs). Two different forms of the duobinary modulation format are investigated and compared. Maximum Likelihood Sequence Estimation (MLSE) receiver technology is found to significantly mitigate nonlinear effects from the SOAs and to enable the long transmission, especially for optical duobinary signals derived from differential phase shift keying (DPSK) signals directly detected after narrowband optical filter demodulation. The MLSE also helps to compensate for a non-optimal Fabry-Perot optical filter demodulator.

© 2008 Optical Society of America

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  1. S. Kuwano, K. Yonenaga, and K. Iwashita, "10 Gbit/s Repeaterless Transmission Experiment of Optical Duobinary Modulated Signal," Electron. Lett. 31, 1359-1361 (1995).
    [CrossRef]
  2. D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, "Optical differential phase shift keying (DPSK) direct detection considered as a duobinary signal," European Conference on Optical Communications (ECOC 2001), Amsterdam, The Netherlands, Paper We.P.40, (2001).
  3. P. S. Cho and J. B. Khurgin, "Suppression of cross-gain modulation in SOA using RZ-DPSK modulation format," IEEE Photon. Technol. Lett. 15, 162-164 (2003).
    [CrossRef]
  4. X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
    [CrossRef]
  5. A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
    [CrossRef]
  6. J. D. Downie, J. Hurley, M. Sauer, S. Raghavan, and S. Lobanov, "Uncompensated WDM transmission of 10.7 Gbit/s directly detected DPSK over 300 km standard single-mode fibre and through 6 SOAs," European Conference on Optical Communication (ECOC 2007), Berlin, Germany, Paper P076, (2007).
    [CrossRef]
  7. J. D. Downie, J. Hurley, and Y. Mauro, "Uncompensated 10.7 Gb/s Transmission over a 470 km Hybrid Fiber Link with In-Line SOAs," Conference on Lasers and Electro-Optics/Quantum Electrons and Laser Science Conference and Photonic Applications Systems Technologies Technical Digest, (Optical Society of America, Washington, D.C., 2008), Paper CThAA1, (2008).
    [PubMed]
  8. A. Farbert, S. Langenbach, N. Stojanovic, C. Dorschky, T. Kupfer, C. Schulien, J. P. Elbers, H. Wernz, H. Griesser, and C. Glingener, "Performance of a 10.7 Gb/s Receiver with Digital Equaliser using Maximum Likelihood Sequence Estimation," European Conference on Optical Communications (ECOC 2004), Stockholm, Sweden, Paper Th4.1.5, (2004).
  9. S. Chandrasekhar and A. H. Gnauck, "Performance of MLSE receiver in a dispersion-managed multispan experiment at 10.7 Gb/s under nonlinear transmission," IEEE Photon. Technol. Lett. 18, 2448-2450 (2006).
    [CrossRef]
  10. J. D. Downie, J. Hurley, Y. Mauro, and S. Lobanov, "On the Use of MLSE with Non-Optimal Demodulation Filtering for Optical Duobinary Transmission," Optical Fiber Communication Conference and Exhibition and The National Fiber Optic Engineers Conference on CD-ROM) (Optical Society of America, Washington, D.C., 2008), paper OTh05 (2008).
    [PubMed]
  11. J. D. Downie and J. Hurley, "Performance of an MLSE-EDC Receiver with SOA-induced Nonlinear Impairments," IEEE Photon. Technol. Lett.,  20, 1326-1328 (2008).
    [CrossRef]
  12. A. Borghesani, N. Fensom, A. Scott, G. Crow, L. Johnston, J. King, L. Rivers, S. Cole, S. Perrin, D. Scrase, G. Bonfrate, A. Ellis, I. Lealman, G. Crouzel, L. How Kee Chun, A. Lupu, E. Mahe, and P. Maigne, "High saturation power (>16.5dBm) and low noise figure (<6dB) semiconductor optical amplifier for C-band operation," Optical Fiber Communication Conference (OFC 2003) (Optical Society of America, Washington, D.C., 2003), paper ThO1.

2008 (1)

J. D. Downie and J. Hurley, "Performance of an MLSE-EDC Receiver with SOA-induced Nonlinear Impairments," IEEE Photon. Technol. Lett.,  20, 1326-1328 (2008).
[CrossRef]

2007 (1)

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

2006 (1)

S. Chandrasekhar and A. H. Gnauck, "Performance of MLSE receiver in a dispersion-managed multispan experiment at 10.7 Gb/s under nonlinear transmission," IEEE Photon. Technol. Lett. 18, 2448-2450 (2006).
[CrossRef]

2004 (1)

X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
[CrossRef]

2003 (1)

P. S. Cho and J. B. Khurgin, "Suppression of cross-gain modulation in SOA using RZ-DPSK modulation format," IEEE Photon. Technol. Lett. 15, 162-164 (2003).
[CrossRef]

1995 (1)

S. Kuwano, K. Yonenaga, and K. Iwashita, "10 Gbit/s Repeaterless Transmission Experiment of Optical Duobinary Modulated Signal," Electron. Lett. 31, 1359-1361 (1995).
[CrossRef]

Betti, S.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

Carrozzo, V.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

Chandrasekhar, S.

S. Chandrasekhar and A. H. Gnauck, "Performance of MLSE receiver in a dispersion-managed multispan experiment at 10.7 Gb/s under nonlinear transmission," IEEE Photon. Technol. Lett. 18, 2448-2450 (2006).
[CrossRef]

X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
[CrossRef]

Cho, P. S.

P. S. Cho and J. B. Khurgin, "Suppression of cross-gain modulation in SOA using RZ-DPSK modulation format," IEEE Photon. Technol. Lett. 15, 162-164 (2003).
[CrossRef]

Ciaramella, E.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

Contestabile, G.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

Curti, F.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

D???Errico, A.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

Donzella, V.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

Downie, J. D.

J. D. Downie and J. Hurley, "Performance of an MLSE-EDC Receiver with SOA-induced Nonlinear Impairments," IEEE Photon. Technol. Lett.,  20, 1326-1328 (2008).
[CrossRef]

Gnauck, A. H.

S. Chandrasekhar and A. H. Gnauck, "Performance of MLSE receiver in a dispersion-managed multispan experiment at 10.7 Gb/s under nonlinear transmission," IEEE Photon. Technol. Lett. 18, 2448-2450 (2006).
[CrossRef]

Guglielmucci, M.

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

Hurley, J.

J. D. Downie and J. Hurley, "Performance of an MLSE-EDC Receiver with SOA-induced Nonlinear Impairments," IEEE Photon. Technol. Lett.,  20, 1326-1328 (2008).
[CrossRef]

Iwashita, K.

S. Kuwano, K. Yonenaga, and K. Iwashita, "10 Gbit/s Repeaterless Transmission Experiment of Optical Duobinary Modulated Signal," Electron. Lett. 31, 1359-1361 (1995).
[CrossRef]

Khurgin, J. B.

P. S. Cho and J. B. Khurgin, "Suppression of cross-gain modulation in SOA using RZ-DPSK modulation format," IEEE Photon. Technol. Lett. 15, 162-164 (2003).
[CrossRef]

Kuwano, S.

S. Kuwano, K. Yonenaga, and K. Iwashita, "10 Gbit/s Repeaterless Transmission Experiment of Optical Duobinary Modulated Signal," Electron. Lett. 31, 1359-1361 (1995).
[CrossRef]

Leuthold, J.

X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
[CrossRef]

Liu, X.

X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
[CrossRef]

Su, Y.

X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
[CrossRef]

Wei, X.

X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
[CrossRef]

Yonenaga, K.

S. Kuwano, K. Yonenaga, and K. Iwashita, "10 Gbit/s Repeaterless Transmission Experiment of Optical Duobinary Modulated Signal," Electron. Lett. 31, 1359-1361 (1995).
[CrossRef]

Electron. Lett. (2)

S. Kuwano, K. Yonenaga, and K. Iwashita, "10 Gbit/s Repeaterless Transmission Experiment of Optical Duobinary Modulated Signal," Electron. Lett. 31, 1359-1361 (1995).
[CrossRef]

A. D???Errico, V. Donzella, G. Contestabile, S. Betti, V. Carrozzo, F. Curti, M. Guglielmucci and E. Ciaramella, "Field-trial of SOA-based WDM-DPSK 8x10 Gbit/s system over 300km with conventional amplification span," Electron. Lett. 43, 404-405 (2007).
[CrossRef]

IEEE Photon. Technol. Lett. (4)

P. S. Cho and J. B. Khurgin, "Suppression of cross-gain modulation in SOA using RZ-DPSK modulation format," IEEE Photon. Technol. Lett. 15, 162-164 (2003).
[CrossRef]

X. Wei, Y. Su, X. Liu, J. Leuthold, and S. Chandrasekhar, "10-Gb/s RZ-DPSK Transmitter Using a Saturated SOA as a Power Booster and Limiting Amplifier," IEEE Photon. Technol. Lett. 16, 1582-1584 (2004).
[CrossRef]

S. Chandrasekhar and A. H. Gnauck, "Performance of MLSE receiver in a dispersion-managed multispan experiment at 10.7 Gb/s under nonlinear transmission," IEEE Photon. Technol. Lett. 18, 2448-2450 (2006).
[CrossRef]

J. D. Downie and J. Hurley, "Performance of an MLSE-EDC Receiver with SOA-induced Nonlinear Impairments," IEEE Photon. Technol. Lett.,  20, 1326-1328 (2008).
[CrossRef]

Other (6)

A. Borghesani, N. Fensom, A. Scott, G. Crow, L. Johnston, J. King, L. Rivers, S. Cole, S. Perrin, D. Scrase, G. Bonfrate, A. Ellis, I. Lealman, G. Crouzel, L. How Kee Chun, A. Lupu, E. Mahe, and P. Maigne, "High saturation power (>16.5dBm) and low noise figure (<6dB) semiconductor optical amplifier for C-band operation," Optical Fiber Communication Conference (OFC 2003) (Optical Society of America, Washington, D.C., 2003), paper ThO1.

J. D. Downie, J. Hurley, Y. Mauro, and S. Lobanov, "On the Use of MLSE with Non-Optimal Demodulation Filtering for Optical Duobinary Transmission," Optical Fiber Communication Conference and Exhibition and The National Fiber Optic Engineers Conference on CD-ROM) (Optical Society of America, Washington, D.C., 2008), paper OTh05 (2008).
[PubMed]

D. Penninckx, H. Bissessur, P. Brindel, E. Gohin, and F. Bakhti, "Optical differential phase shift keying (DPSK) direct detection considered as a duobinary signal," European Conference on Optical Communications (ECOC 2001), Amsterdam, The Netherlands, Paper We.P.40, (2001).

J. D. Downie, J. Hurley, M. Sauer, S. Raghavan, and S. Lobanov, "Uncompensated WDM transmission of 10.7 Gbit/s directly detected DPSK over 300 km standard single-mode fibre and through 6 SOAs," European Conference on Optical Communication (ECOC 2007), Berlin, Germany, Paper P076, (2007).
[CrossRef]

J. D. Downie, J. Hurley, and Y. Mauro, "Uncompensated 10.7 Gb/s Transmission over a 470 km Hybrid Fiber Link with In-Line SOAs," Conference on Lasers and Electro-Optics/Quantum Electrons and Laser Science Conference and Photonic Applications Systems Technologies Technical Digest, (Optical Society of America, Washington, D.C., 2008), Paper CThAA1, (2008).
[PubMed]

A. Farbert, S. Langenbach, N. Stojanovic, C. Dorschky, T. Kupfer, C. Schulien, J. P. Elbers, H. Wernz, H. Griesser, and C. Glingener, "Performance of a 10.7 Gb/s Receiver with Digital Equaliser using Maximum Likelihood Sequence Estimation," European Conference on Optical Communications (ECOC 2004), Stockholm, Sweden, Paper Th4.1.5, (2004).

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Figures (6)

Fig. 1.
Fig. 1.

Experimental set-up for uncompensated transmission over 470 km hybrid fiber link with 6 SOAs.

Fig. 2.
Fig. 2.

Dispersion tolerance data for LPF duobinary and optical duobinary transmitters measured as the required OSNR to achieve a BER of 1×10-3 with a standard receiver.

Fig. 3.
Fig. 3.

Net link loss as a function of total launch power into first span of the hybrid fiber link

Fig. 4.
Fig. 4.

BER values vs. total launch power into first span for optical duobinary signals over 470 km hybrid fiber link. (a) Single channel, (b) WDM system.

Fig. 5.
Fig. 5.

BER values vs. total launch power into first span for LPF duobinary signals over 470 km hybrid fiber link. (a) Single channel, (b) WDM system.

Fig. 6.
Fig. 6.

(a) BER vs. total launch power into first span for channel #5 with both WDM systems, (b) Q values for all 8 channels with both formats.

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