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

Volume

22

Issue

23

fYear

2010

Firstpage

1735

Lastpage

1737

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2083644

Filename

5593866