Title :
Two-stage all-optical subharmonic clock recovery using modelocked semiconductor lasers
Author :
Yokoyama, Haruki ; Hashimoto, Yo ; Kurita, Hiroshi ; Ogura, I.
Author_Institution :
Fundamental Res. Labs., NEC Corp., Ibaraki, Japan
fDate :
8/31/2000 12:00:00 AM
Abstract :
The phase-stability and intensity noise property in all-optical subharmonic clock recovery has been improved by utilising optical-pulse-injection synchronisation of modelocked diode lasers through a cascading two-stage configuration. The first stage involves optical clock extraction at the same frequency as that of the injected optical data, while the second stage is the periodic optical pulse injection into a modelocked diode laser generating a subharmonic frequency. This clock recovery scheme has been successfully applied to 40 to 10 Gbit/s all-optical demultiplexing
Keywords :
demultiplexing; laser mode locking; laser noise; semiconductor device noise; semiconductor lasers; synchronisation; 40 to 10 Gbit/s; Gbit/s all-optical demultiplexing; cascading two-stage configuration; clock recovery scheme; injected optical data; intensity noise property; modelocked diode laser; modelocked diode lasers; modelocked semiconductor lasers; optical-pulse-injection synchronisation; periodic optical pulse injection; phase-stability; subharmonic frequency generation; two-stage all-optical subharmonic clock recovery;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20001124
