Published/Posted: September 1, 2005
Authors: Salem, R.; Tudury, G. E.; Horton, T. U.; Carter, G. M.; Murphy, T. E.
We report an optical clock recovery system that uses two-photon absorption in a conventional silicon photodiode to synchronize a 10-GHz optical clock to an 80-Gb/s data stream. Compared to many other clock recovery techniques, the system is economical, polarization-insensitive, and can operate over a broad range of optical wavelengths. The system was tested back-to-back and in a 110-km transmission experiment, achieved error-free performance in all cases, and exhibits a root-mean-square timing jitter of 120 fs. Low timing jitter is maintained even in the presence of slow or fast polarization fluctuations.
R. Salem, G. E. Tudury, T. U. Horton, G. M. Carter and T. E. Murphy, "Polarization-Insensitive Optical Clock Recovery at 80 Gb/s Using a Silicon Photodiode" IEEE Photon. Technol. Lett. 17(9) 1968-1970 (2005)
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