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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 20,
  • Issue 9,
  • pp. 1705-
  • (2002)

All-Optical Clock Recovery From RZ-Format Data by Using a Two-Section Gain-Coupled DFB Laser

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Abstract

High-speed all-optical clock recovery using a two-section gain-coupled distributed feedback laser is demonstrated operating in the coherent and the incoherent modes. It is found that the coherent mode has a much better performance compared with the incoherent mode. The performance of the coherent clock recovery scheme at 12 and 40 Gb/s, including wavelength and polarization insensitivity,timing jitter, and phase noise; power penalty; sensitivity; dynamic range; locking bandwidth; detuning range of the injection wavelength; and lockup time are described in detail. A comparison between the performances of the two modes of operation is also presented.

[IEEE ]

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