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All-Optical Clock Recovery for NRZ-DPSK Signals

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4 Author(s)
Contestabile, G. ; Scuola Superiore Sant''Anna, Pisa ; Presi, M. ; Calabretta, N. ; Ciaramella, E.

We experimentally demonstrate an optical clock recovery scheme for nonreturn-to-zero differential phase shifting keying (NRZ-DPSK) data. By using an optical circuit made by a proper fiber Bragg filter and a Fabry-Peacuterot based clock extraction circuit, we obtain a stable and low jitter 10-GHz optical clock signal. This signal shows comparable performance with the original electrical clock in bit-error-rate measurements and oscilloscope triggering operation

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 23 )