Title :
High Time-Resolution 640-Gb/s Clock Recovery Using Time-Domain Optical Fourier Transformation and Narrowband Optical Filter
Author :
Guan, Pengyu ; Mulvad, Hans Christian Hansen ; Kasai, Keisuke ; Hirooka, Toshihiko ; Nakazawa, Masataka
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
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.
Keywords :
Fourier transform optics; differential phase shift keying; optical filters; synchronisation; time division multiplexing; bit rate 640 Gbit/s; differential phase-shift-keying transmission; distance 300 km; error-free performance; high time-resolution clock recovery; narrowband optical filter; optical time-division-multiplexing signal; subharmonic clock recovery; time-domain optical fourier transformation; Clocks; Fourier transforms; Frequency domain analysis; Optical distortion; Optical filters; Optical pulses; Time domain analysis; Clock recovery; high-speed optical pulse transmission; optical Fourier transformation; optical time-division multiplexing (OTDM); time-to-frequency conversion;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2083644
