Title :
Ultrastable harmonically and regeneratively modelocked polarisation-maintaining erbium fibre ring laser
Author :
Nakazawa, Masataka ; Yoshida, Erika ; Kimura, Yuichi
Author_Institution :
NTT Opt. Transmission Line Lab., Ibaraki
fDate :
9/15/1994 12:00:00 AM
Abstract :
The authors report the operation of a harmonically and regeneratively modelocked erbium fibre ring laser at 1.55 μm for the first time. Harmonic regenerative modelocking was achieved by feeding back the harmonic longitudinal beat signal which was detected with a high speed photodetector and a high Q dielectric filter. The repetition rate was 10 GHz and the soliton effect shortened-the pulse width from 7.0 to 2.7 ps
Keywords :
erbium; fibre lasers; laser mode locking; light polarisation; optical solitons; ring lasers; 1.55 micron; 10 GHz; 7.0 to 2.7 ps; feedback; harmonic regenerative modelocking; high Q dielectric filter; high speed photodetector; longitudinal beat signal; polarisation-maintaining erbium fibre ring laser; pulse width; repetition rate; soliton effect; ultrastable laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941072
