Title :
All-optical 3R regeneration technique using injection-locking in gain-switched DFB-LD
Author :
Nakagawa, J. ; Marhic, M.E. ; Kazovsky, L.G.
Author_Institution :
Opt. Commun. Res. Lab., Stanford Univ., CA, USA
fDate :
2/15/2001 12:00:00 AM
Abstract :
A new all-optical 3R regeneration technique using injection-locking in a gain-switched DFB-LD is proposed. The operation of the technique is confirmed numerically and experimentally. Both simulation and experimental results show that the degraded RZ pulses are reshaped, retimed, and regenerated by injection-locking, into short pulses generated by gain-switching. Moreover, error-free all-optical 3R regeneration at 2.5 Gbit/s has been successfully achieved, with 1.5 dB negative penalty
Keywords :
distributed feedback lasers; optical repeaters; semiconductor lasers; 2.5 Gbit/s; RZ pulse; all-optical 3R regeneration; gain switched DFB laser diode; injection locking;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010152
