Title :
Stabilisation of a modelocked Er-doped fibre laser by suppressing the relaxation oscillation frequency component
Author :
Takara, H. ; Kawanishi, S. ; Saruwatari, M.
Author_Institution :
NTT Opt. Network Syst. Labs., Kanagawa, Japan
fDate :
2/16/1995 12:00:00 AM
Abstract :
A novel method is reported for stabilising an actively modelocked Er-doped fibre laser by controlling its cavity length to suppress the relaxation oscillation RF power of the laser output. This RF power is a good measure of laser instability. With this method, the RF power ratio between modelocking frequency and background noise is kept to more than 70 dB, and stable bit-error-free operation at 6.3 GHz is realised for over 6 hr
Keywords :
erbium; error statistics; fibre lasers; laser cavity resonators; laser mode locking; laser noise; laser stability; oscillations; relaxation; 6 hour; 6.3 GHz; Er-doped fibre laser; cavity length; laser instability; laser output; modelocked fibre laser; oscillation suppression; relaxation oscillation RF power; relaxation oscillation frequency component; stabilisation; stable bit-error-free operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950215
