Abstract
We report on a novel, efficient technique for all-optical clock recovery from RZ-OOK data signals based on spectral phase-only (all-pass) optical filtering. This technique significantly enhances both the recovered optical clock quality and energy efficiency in comparison with conventional amplitude optical filtering approaches using a Fabry–Perot filter. The proposed concept is validated through recovery of the optical clock from a RZ-OOK data signal using a commercial linear optical waveshaper.
© 2014 Optical Society of America
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