Doubly Q-switched laser with electric-optic modulator and GaAs saturable absorber

作者:Zhao S*; Zhao J; Li G; Yang K; Sun Y; Li D; An J; Wang J; Li M
来源:Laser Physics Letters, 2006, 3(10): 471-473.
DOI:10.1002/lapl.200610038

摘要

By using both electric-optic (EO) modulator and GaAs saturable absorber, a doubly actively-passively Q-switched laser is realized for the first time. Especially, the more symmetric and shorter pulse is generated in comparison to purely Eo-actively or GaAs-passively Q-switched laser. In addition, a symmetric factor is defined to describe the temporal symmetry of the pulses. The experimental results show that it is possible to obtain a more symmetric pulse in doubly Q-switched laser.