High Time-Resolution 640-Gb/s Clock Recovery Using Time-Domain Optical Fourier Transformation and Narrowband Optical Filter

We present a novel scheme for subharmonic clock recovery from an optical time-division-multiplexing signal using time-domain optical Fourier transformation and a narrowband optical filter. High-resolution 640-Gb/s clock recovery is successfully demonstrated with no pattern dependence. The clock reco...

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Veröffentlicht in:	IEEE photonics technology letters 2010-12, Vol.22 (23), p.1735-1737
Hauptverfasser:	Pengyu Guan, Mulvad, H C H, Kasai, K, Hirooka, T, Nakazawa, M
Format:	Artikel
Sprache:	eng
Schlagworte:	Clock recovery Clocks Conferences Fiber optics Fourier transformation Fourier transforms Frequency domain analysis high-speed optical pulse transmission Narrowband Optical communication Optical distortion Optical fibers Optical filters optical Fourier transformation Optical pulses optical time-division multiplexing (OTDM) Time domain analysis time-to-frequency conversion
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Zusammenfassung:	We present a novel scheme for subharmonic clock recovery from an optical time-division-multiplexing signal using time-domain optical Fourier transformation and a narrowband optical filter. High-resolution 640-Gb/s clock recovery is successfully demonstrated with no pattern dependence. The clock recovery is also applied to a 640-Gb/s differential phase-shift-keying transmission, and error-free performance is achieved over 300 km.
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2010.2083644