Title :
Effects of ion-clusters on the intensity noise of heavily erbium-doped fiber lasers
Author :
An, H.L. ; Pun, E.Y.B. ; Lin, X.Z. ; Liu, H.D.
Author_Institution :
Dept. of Electron. Eng., City Univ of Hong Kong, Kowloon, Hong Kong
fDate :
7/1/1999 12:00:00 AM
Abstract :
Using a modified ion-cluster model, we study the intensity noise of heavily erbium-doped fiber lasers in which some large ion-clusters may exist. Theoretical results show that the low-frequency noise is enhanced greatly when many erbium ions are in clusters. The fiber laser system is very sensitive to perturbations in the pump rate, and imposes a high demand on the stability of the pump source.
Keywords :
erbium; fibre lasers; laser beams; laser cavity resonators; laser modes; laser noise; optical fibre losses; optical frequency conversion; optical pumping; Er-doped fiber lasers; fiber laser system; intensity noise; ion-clusters; low-frequency noise; modified ion-cluster model; perturbations; pump rate; pump source; stability; Distributed feedback devices; Erbium; Erbium-doped fiber lasers; Laser feedback; Laser modes; Laser noise; Laser stability; Laser theory; Pump lasers; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
