Title :
All-Optical Clock Recovery for NRZ-DPSK Signals
Author :
Contestabile, Giampiero ; Presi, Marco ; Calabretta, Nicola ; Ciaramella, Ernesto
Author_Institution :
Scuola Superiore Sant´´Anna, Pisa
Abstract :
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
Keywords :
differential phase shift keying; error statistics; jitter; optical fibre communication; optical fibre filters; optical modulation; synchronisation; NRZ-DPSK signals; all-optical clock recovery; bit error rate; fiber Bragg filter; nonreturn-to-zero differential phase shifting keying; Clocks; Differential quadrature phase shift keying; Fiber nonlinear optics; High speed optical techniques; Nonlinear optics; Optical filters; Optical receivers; Optical signal processing; Repeaters; Semiconductor optical amplifiers; All-optical clock recovery; Fabry-Pérot filter; optical DPSK; optical communications; semiconductor optical amplifier (SOA);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.887207
