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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 30,
  • Issue 11,
  • pp. 1632-1637
  • (2012)

All-Optical Clock Recovery Using a Single Fabry–Perot Semiconductor Optical Amplifier

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Abstract

We present and demonstrate all-optical clock recovery (CR) from the input single- and multiwavelength return-to-zero (RZ) data, using a single multiquantum-well Fabry–Pérot semiconductor optical amplifier (FP-SOA) with no additional amplitude equalization measures. The influence of the FP-SOA facet reflectivity on the amplitude equalization of the recovered clock was numerically investigated. A stable 36.55 GHz optical clock with an extinction ratio of 11.0 dB and a root-mean-square timing jitter of 575 fs was extracted from the input, which consisted of 2<sup>23</sup> -1 pseudorandom binary sequences of RZ data. The presented scheme has the potential to perform CR from more than 100 Gbit/s of RZ data, and it has the advantage of wideband and parallel operation.

© 2012 IEEE

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