Switching-induced perturbation and influence on actively Q-switched fiber lasers

Author

Wang, Yong ; Xu, Chang-Qing

Author_Institution

Dept. of Eng. Phys., McMaster Univ., Hamilton, Ont., Canada

Volume

40

Issue

11

fYear

2004

Firstpage

1583

Lastpage

1596

Abstract

Dynamic characteristics of typical actively Q-switched fiber lasers are numerically investigated by using the traveling-wave method. The multipeak phenomena of output pulses are analyzed, and the mechanism for these phenomena is detailed. In particular, the switching-induced perturbation and its influence are emphasized under different conditions. A quantitative analysis shows that under certain conditions of cavity, pump and switching, a split-pulse output can turn to a single-pulse output. Then how to realize the single-pulse output is systematically illustrated, and some experimental results are shown for comparison.

Keywords

Q-switching; fibre lasers; optical pulse generation; superradiance; actively Q-switched fiber lasers; multipeak phenomena; single-pulse output; split-pulse output; switching-induced perturbation; traveling-wave method; Fiber lasers; Laser mode locking; Laser noise; Lasers and electrooptics; Numerical simulation; Optical pulses; Pulse modulation; Pump lasers; Ring lasers; Solid lasers; Active $Q$-switch; amplified spontaneous emission; fiber lasers; laser dynamics; rare-earth-doped fiber;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2004.835212

Filename

1344139