Self-starting optical–electrical–optical homodyne clock recovery for phase-modulated signals

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Sooudi, Ehsan
Ellis, Andrew D.
Manning, Robert J.
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Optical Society of America
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We propose a novel self-homodyne optical–electrical–optical clock recovery technique for binary phase-shift keying (BPSK) signals using commercial optical and electrical components. We present the principle of operation as well as a proof-of-concept experiment for a 10.7 Gb/s BPSK signal clock recovery transmitted over a dispersion-compensated link of 20 km of single-mode fiber. Suppression of pattern-related frequency noise at the output of the recovered clock is shown. The timing jitter of the recovered clock at 10.7 GHz was measured to be ∼450  fs∼450  fs (integration range: 100 Hz–10 MHz).
Coherent communications , Homodyning , Optical communications , Phase modulation
Sooudi, E., Ellis, A. D. and Manning, R. J. (2017) 'Self-starting optical–electrical–optical homodyne clock recovery for phase-modulated signals', Optics Letters, 42(17), pp. 3486-3489. doi:10.1364/OL.42.003486
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