Title :
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
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;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2004.835212
