Abstract

This paper demonstrates two optical pulse retiming and reshaping systems incorporating superstructured fiber Bragg gratings (SSFBGs) as pulse shaping elements. A rectangular switching window is implemented to avoid conversion of the timing jitter on the original data pulses into pulse amplitude noise at the output of a nonlinear optical switch. In a first configuration, the rectangular pulse generator is used at the (low power) data input to a nonlinear optical loop mirror (NOLM) to perform retiming of an incident noisy data signal using a clean local clock signal to control the switch. In a second configuration, the authors further amplify the data signal and use it to switch a (low power) clean local clock signal. The S-shaped nonlinear characteristic of the NOLM results in this instance in a reduction of both timing and amplitude jitter on the data signal. The underlying technologies required for the implementation of this technique are such that an upgrade of the scheme for the regeneration of ultrahigh bit rate signals at data rates in excess of 320 Gb/s should be achievable.

© 2006 IEEE

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  1. B. J. Eggleton, P. A. Krug, L. Poladian and F. Ouellette, "Long periodic superstructure Bragg gratings in optical fibres", Electron. Lett., vol. 30, no. 19, pp. 1620-1622, Sep. 1994.
  2. P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "A comparative study of the performance of seven-and 63-chip optical code-division multiple-access encoders and decoders based on superstructured fiber Bragg gratings", J. Lightw. Technol., vol. 19, no. 9, pp. 1352-11365, Sep. 2001.
  3. P. Petropoulos, M. Ibsen, M. N. Zervas and D. J. Richardson, "Generation of a 40-GHz pulse stream by pulse multiplication with a sampled fiber Bragg grating", Opt. Lett., vol. 25, no. 8, pp. 521-523, Apr. 2000.
  4. P. Petropoulos, M. Ibsen, A. D. Ellis and D. J. Richardson, "Rectangular pulse generation based on pulse reshaping using superstructured fiber Bragg grating", J. Lightw. Technol., vol. 19, no. 5, pp. 746-752, May 2001.
  5. J. H. Lee, L. K. Oxenløwe, M. Ibsen, K. S. Berg, A. T. Clausen, D. J. Richardson and P. Jeppesen, "Timing jitter tolerant all-optical TDM data demultiplexing at 80 Gb/s using fiber Bragg grating based rectangular pulse switching technology", in Proc. Optical Fiber Communications Conf. (OFC), Atlanta, GA, 2003,Paper TuH7,. pp. 200-201.
  6. K. Uchiyama, T. Morioka, S. Kawanishi, H. Takara and M. Saruwatari, "Signal-to-noise ratio analysis of 100 Gb/s demultiplexing using nonlinear optical loop mirror", J. Lightw. Technol., vol. 15, no. 2, pp. 194-201, Feb. 1997.
  7. J. H. Lee, P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "Timing jitter tolerant all-optical modulator and demultiplexing systems incorporating pulse-shaping fiber Bragg gratings", in Proc. Optical Fiber Communications Conf. (OFC), Anaheim, CA, 2001, pp. PD30-1-PD30-3.
  8. C. Schubert, R. Ludwig, S. Watanabe, F. Futami, S. Ferber, J. Berger, C. Schmidt and H. G. Weber, "Improved performance of a 160 Gb/s fibre based all-optical switch using rectangular gating pulses", presented at the Proc. Eur. Conf. Optical Communication (ECOC), Copenhagen, Denmark,Paper 8.3.7, 2002.
  9. N. J. Doran and D. Wood, "Nonlinear-optical loop mirror", Opt. Lett., vol. 13, no. 1, pp. 56-58, Jan. 1988.
  10. F. Parmigiani, P. Petropoulos, P. J. Almeida, M. Ibsen, J. H. Lee and D. J. Richardson, "A direct assessment of the performance of pulse shaping superstructured fiber gratings using an optical sampling oscilloscope", in Proc. Optical Fiber Communications Conf. (OFC), Atlanta, GA, 2003,Paper MF36,. pp. 40-42.
  11. P. C. Teh, M. Ibsen, J. H. Lee, P. Petropoulos and D. J. Richardson, "Demonstration of a four-channel WDM/OCDMA system using 255-chirp, 320 Gchip/s quaternary phase coding gratings", IEEE Photon. Technol. Lett., vol. 14, no. 2, pp. 227-229, Feb. 2002.

Other

B. J. Eggleton, P. A. Krug, L. Poladian and F. Ouellette, "Long periodic superstructure Bragg gratings in optical fibres", Electron. Lett., vol. 30, no. 19, pp. 1620-1622, Sep. 1994.

P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "A comparative study of the performance of seven-and 63-chip optical code-division multiple-access encoders and decoders based on superstructured fiber Bragg gratings", J. Lightw. Technol., vol. 19, no. 9, pp. 1352-11365, Sep. 2001.

P. Petropoulos, M. Ibsen, M. N. Zervas and D. J. Richardson, "Generation of a 40-GHz pulse stream by pulse multiplication with a sampled fiber Bragg grating", Opt. Lett., vol. 25, no. 8, pp. 521-523, Apr. 2000.

P. Petropoulos, M. Ibsen, A. D. Ellis and D. J. Richardson, "Rectangular pulse generation based on pulse reshaping using superstructured fiber Bragg grating", J. Lightw. Technol., vol. 19, no. 5, pp. 746-752, May 2001.

J. H. Lee, L. K. Oxenløwe, M. Ibsen, K. S. Berg, A. T. Clausen, D. J. Richardson and P. Jeppesen, "Timing jitter tolerant all-optical TDM data demultiplexing at 80 Gb/s using fiber Bragg grating based rectangular pulse switching technology", in Proc. Optical Fiber Communications Conf. (OFC), Atlanta, GA, 2003,Paper TuH7,. pp. 200-201.

K. Uchiyama, T. Morioka, S. Kawanishi, H. Takara and M. Saruwatari, "Signal-to-noise ratio analysis of 100 Gb/s demultiplexing using nonlinear optical loop mirror", J. Lightw. Technol., vol. 15, no. 2, pp. 194-201, Feb. 1997.

J. H. Lee, P. C. Teh, P. Petropoulos, M. Ibsen and D. J. Richardson, "Timing jitter tolerant all-optical modulator and demultiplexing systems incorporating pulse-shaping fiber Bragg gratings", in Proc. Optical Fiber Communications Conf. (OFC), Anaheim, CA, 2001, pp. PD30-1-PD30-3.

C. Schubert, R. Ludwig, S. Watanabe, F. Futami, S. Ferber, J. Berger, C. Schmidt and H. G. Weber, "Improved performance of a 160 Gb/s fibre based all-optical switch using rectangular gating pulses", presented at the Proc. Eur. Conf. Optical Communication (ECOC), Copenhagen, Denmark,Paper 8.3.7, 2002.

N. J. Doran and D. Wood, "Nonlinear-optical loop mirror", Opt. Lett., vol. 13, no. 1, pp. 56-58, Jan. 1988.

F. Parmigiani, P. Petropoulos, P. J. Almeida, M. Ibsen, J. H. Lee and D. J. Richardson, "A direct assessment of the performance of pulse shaping superstructured fiber gratings using an optical sampling oscilloscope", in Proc. Optical Fiber Communications Conf. (OFC), Atlanta, GA, 2003,Paper MF36,. pp. 40-42.

P. C. Teh, M. Ibsen, J. H. Lee, P. Petropoulos and D. J. Richardson, "Demonstration of a four-channel WDM/OCDMA system using 255-chirp, 320 Gchip/s quaternary phase coding gratings", IEEE Photon. Technol. Lett., vol. 14, no. 2, pp. 227-229, Feb. 2002.

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