Title :
Novel method to suppress noise in harmonically modelocked erbium fibre lasers
Author :
Shan, X. ; Spirit, D.M.
Author_Institution :
Essex Univ., Colchester, UK
fDate :
5/27/1993 12:00:00 AM
Abstract :
A novel method to suppress noise in a high harmonic mode-locked erbium fibre laser is proposed and realised for the first time, dithering the cavity length at a kilohertz rate. This method makes only one supermode in the laser dominant and suppresses the others. A fibre laser so stabilised has enabled 2.5 Gbit/s soliton transmission over 205 km fibre remaining error free for 100 min, and in a recirculating loop achieving a 10-9 bit error rate at 12000 km, respectively.
Keywords :
erbium; fibre lasers; interference suppression; laser mode locking; optical solitons; 12000 km; 2.4 GHz; 2.5 GHz; 2.5 Gbit/s; 205 km; 4 GHz; Er fibre lasers; bit error rate; cavity length; fibre dithering; harmonically modelocked laser; noise suppression; recirculating loop; soliton transmission; supermode;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930652
