驱动信号占空比对声光调Q脉冲光纤激光器输出脉冲重频的影响  

Influence of the duty cycle of the driving signal on the output pulse repetition frequency of an acousto-optic Q-switched pulsed fiber laser

作　　者：杨亚婷[1] 胡贵军[1] 郭盟[1] 王海燕[1] 

机构地区：[1]吉林大学通信工程学院,吉林长春130012

出　　处：《光电子．激光》2015年第10期1849-1853,共5页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(61177066);吉林省科技发展计划(20140203009GX);吉林省发改委产业技术研发专项(2014Y087)资助项目

摘　　要：搭建了声光调Q脉冲光纤激光器实验系统,通过调节声光调制器(AOM)驱动信号的占空比,研究了驱动信号占空比对声光调Q脉冲光纤激光器输出脉冲重频的影响。结果显示,当AOM驱动信号频率固定时,随着占空比的减小,输出脉冲重频依次为AOM驱动信号频率、AOM驱动信号频率的1/2、1/3。实验结果表明,在声光调Q脉冲光纤激光器中,输出脉冲重频受AOM驱动信号频率和占空比的共同影响。An acousto-optic Q-switched pulsed fiber laser experimental system is set up and the influence of the duty cycle of the driving signal on the output pulse repetition frequency is demonstrated by adjus- ting the duty cycle of the driving signal of the acousto-optic moudulator （AOM）. The results show that when the frequency of the driving signal is fixed, the output pulse appears at the first, and then third sub- harmonics of the AOM repetition rate in order with the decrease of the duty cycle of the driving signal. The experimental results show that appear in an acousto-optic Q-switched pulsed fiber laser,the output pulse repetition frequency is influenced by the frequency and the duty cycle of the AOM driving signal at the same time.

关 键 词：光纤激光器 输出脉冲重频 驱动信号占空比 声光调Q 

分 类 号：TN248[电子电信—物理电子学]