Abstract

We propose a modified nonlinear amplifying loop mirror (NALM) for phase-preserving 2R regeneration of wavelength division multiplexed (WDM) return-to-zero differential phase-shift-keyed signals. As proof of principle the regeneration capability of this NALM setup has been investigated experimentally for two 10 Gbit/s wavelength channels. A significant eye-opening improvement and a negative power penalty of 1.2 dB have been observed in both channels.

© 2008 Optical Society of America

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References

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  1. A.H. Gnauck, P. J. Winzer, "Optical phase-shift-keyed transmission," IEEE J. Lightwave Technol. 23, 115-129 (2005).
    [CrossRef]
  2. J. P. Gordon, L. F. Mollenauer, "Phase noise in photonic communications systems using linear amplifiers," Opt. Lett. 15,1351-1353 (1990).
    [CrossRef] [PubMed]
  3. K. Cvecek, K. Sponsel, G. Onishchukov, B. Schmauss, G. Leuchs, "2R-Regeneration of a RZ-DPSK signal using a nonlinear amplifying loop mirror," IEEE Photon. Technol. Lett. 19, 146-158 (2007).
    [CrossRef]
  4. S. Boscolo, R. Bhamber, S. K. Turitsyn, "Design of Raman-Based Nonlinear Loop Mirror for All-Optical 2R Regeneration of Differential Phase-Shift-Keying Transmission," IEEE J. of Quantum Electronics 42, 619-624 (2006).
    [CrossRef]
  5. M. Matsumoto, "Performance Improvement of Phase-Shift-Keying Signal Transmission By Means of Optical Limiters Using Four-Wave Mixing in Fibers," IEEE J. Lightwave Technol. 23, 2696-2701 (2005)
    [CrossRef]
  6. F. Seguineau, B. Lavigne, D. Rouvillain, P. Brindel, L. Pierre, O. Leclerc, "Experimental demonstration of simple NOLM-based 2R regenerator for 42.66Gbit/s WDM long-haul transmissions," in Optical Fiber Communication Conference, 2004 Optical Society of America, Technical Digest on CD-ROM, paper WN4
  7. S. Boscolo, S. K. Turitsyn, K. Blow, "All-optical passive 2R regeneration for N x 40 Gbit/s WDM transmission using NOLM and novel filtering technique," Opt. Commun. 217, 227-232 (2003)
    [CrossRef]
  8. M. Vasilyev, T. L. Lakoba, "All-optical multichannel 2R regeneration in a fiber-based device," Opt. Lett. 30, 1458-1460 (2005)
    [CrossRef] [PubMed]
  9. C. W. Chow, A. D. Ellis, "Asynchronous Digital Optical Regenerator by an EAM-loop for 4 x 40Gb/s WDM to 160Gb/s OTDM conversion," in Optical Fiber Communication Conference, 2007 Optical Society of America, Technical Digest on CD-ROM, paper JThA54
  10. D. B. Mortimore, "Fiber Loop Reflectors," IEEE J. Lightwave Technol. 6, 1217-1224 (1988).
    [CrossRef]
  11. N. Finlayson, B. K. Nayar, N. J. Doran, "Switch inversion and polarization sensitivity of a nonlinear optical loop mirror," Opt. Lett. 17, 112-114 (1992).
    [CrossRef] [PubMed]
  12. V. G. Ta’eed, N. J. Baker, L. Fu, K. Finsterbusch, M. R. E. Lamont, D. J. Moss, H. C. Nguyen, B. J. Eggleton, D. Y. Choi, S. Madden, B. Luther-Davies, "Ultrafast all-optical chalcogenide glass photonic circuits," Opt. Express 15, 9207-9221 (2007).

2007

K. Cvecek, K. Sponsel, G. Onishchukov, B. Schmauss, G. Leuchs, "2R-Regeneration of a RZ-DPSK signal using a nonlinear amplifying loop mirror," IEEE Photon. Technol. Lett. 19, 146-158 (2007).
[CrossRef]

V. G. Ta’eed, N. J. Baker, L. Fu, K. Finsterbusch, M. R. E. Lamont, D. J. Moss, H. C. Nguyen, B. J. Eggleton, D. Y. Choi, S. Madden, B. Luther-Davies, "Ultrafast all-optical chalcogenide glass photonic circuits," Opt. Express 15, 9207-9221 (2007).

2006

S. Boscolo, R. Bhamber, S. K. Turitsyn, "Design of Raman-Based Nonlinear Loop Mirror for All-Optical 2R Regeneration of Differential Phase-Shift-Keying Transmission," IEEE J. of Quantum Electronics 42, 619-624 (2006).
[CrossRef]

2005

M. Matsumoto, "Performance Improvement of Phase-Shift-Keying Signal Transmission By Means of Optical Limiters Using Four-Wave Mixing in Fibers," IEEE J. Lightwave Technol. 23, 2696-2701 (2005)
[CrossRef]

A.H. Gnauck, P. J. Winzer, "Optical phase-shift-keyed transmission," IEEE J. Lightwave Technol. 23, 115-129 (2005).
[CrossRef]

M. Vasilyev, T. L. Lakoba, "All-optical multichannel 2R regeneration in a fiber-based device," Opt. Lett. 30, 1458-1460 (2005)
[CrossRef] [PubMed]

2003

S. Boscolo, S. K. Turitsyn, K. Blow, "All-optical passive 2R regeneration for N x 40 Gbit/s WDM transmission using NOLM and novel filtering technique," Opt. Commun. 217, 227-232 (2003)
[CrossRef]

1992

1990

1988

D. B. Mortimore, "Fiber Loop Reflectors," IEEE J. Lightwave Technol. 6, 1217-1224 (1988).
[CrossRef]

IEEE J. Lightwave Technol.

A.H. Gnauck, P. J. Winzer, "Optical phase-shift-keyed transmission," IEEE J. Lightwave Technol. 23, 115-129 (2005).
[CrossRef]

M. Matsumoto, "Performance Improvement of Phase-Shift-Keying Signal Transmission By Means of Optical Limiters Using Four-Wave Mixing in Fibers," IEEE J. Lightwave Technol. 23, 2696-2701 (2005)
[CrossRef]

D. B. Mortimore, "Fiber Loop Reflectors," IEEE J. Lightwave Technol. 6, 1217-1224 (1988).
[CrossRef]

IEEE J. of Quantum Electronics

S. Boscolo, R. Bhamber, S. K. Turitsyn, "Design of Raman-Based Nonlinear Loop Mirror for All-Optical 2R Regeneration of Differential Phase-Shift-Keying Transmission," IEEE J. of Quantum Electronics 42, 619-624 (2006).
[CrossRef]

IEEE Photon. Technol. Lett.

K. Cvecek, K. Sponsel, G. Onishchukov, B. Schmauss, G. Leuchs, "2R-Regeneration of a RZ-DPSK signal using a nonlinear amplifying loop mirror," IEEE Photon. Technol. Lett. 19, 146-158 (2007).
[CrossRef]

Opt. Commun.

S. Boscolo, S. K. Turitsyn, K. Blow, "All-optical passive 2R regeneration for N x 40 Gbit/s WDM transmission using NOLM and novel filtering technique," Opt. Commun. 217, 227-232 (2003)
[CrossRef]

Opt. Express

V. G. Ta’eed, N. J. Baker, L. Fu, K. Finsterbusch, M. R. E. Lamont, D. J. Moss, H. C. Nguyen, B. J. Eggleton, D. Y. Choi, S. Madden, B. Luther-Davies, "Ultrafast all-optical chalcogenide glass photonic circuits," Opt. Express 15, 9207-9221 (2007).

Opt. Lett.

Other

C. W. Chow, A. D. Ellis, "Asynchronous Digital Optical Regenerator by an EAM-loop for 4 x 40Gb/s WDM to 160Gb/s OTDM conversion," in Optical Fiber Communication Conference, 2007 Optical Society of America, Technical Digest on CD-ROM, paper JThA54

F. Seguineau, B. Lavigne, D. Rouvillain, P. Brindel, L. Pierre, O. Leclerc, "Experimental demonstration of simple NOLM-based 2R regenerator for 42.66Gbit/s WDM long-haul transmissions," in Optical Fiber Communication Conference, 2004 Optical Society of America, Technical Digest on CD-ROM, paper WN4

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Figures (4)

Fig. 1.
Fig. 1.

A schematic setup of the modified NALM suited for amplitude regeneration of WDM signals.

Fig. 2.
Fig. 2.

The block scheme of the experimental setup.

Fig. 3.
Fig. 3.

Eye diagrams of the demodulated DPSK signal. In (a) and (c) the amplitude-distorted DPSK signal for the 1544-nm and 1553-nm channel, respectively, are shown. (b) and (d) depict the regenerated signal for the 1544-nm and 1553-nm channel, respectively.

Fig. 4.
Fig. 4.

The BER of the amplitude-distorted DPSK-signal in dual-channel operation measured with and without the NALM-based regenerator. The negative power penalty for a BER of 10-9 was 1.2 dB for both channels. Measurements for single-channel regeneration performance are also shown. The reference BER measurements depict the results for an optimal DPSK signal without intentional amplitude distortions.

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