光纤声光调制器的高频驱动器  

High Frequency Driver of Optical Fiber Acousto-Optic Modulator

作　　者：王世前[1] 郭阳宽[1] 祝连庆[1] 刘峰[1] 张荫民[1] 

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192

出　　处：《压电与声光》2014年第6期895-898,共4页Piezoelectrics & Acoustooptics

基　　金：科技成果转化和产业化支持基金资助项目(PXM2013_014224_000077;PXM2012_014224_000019);北京工程技术研究中心光电信息与仪器开放基金资助项目(GD20120010)

摘　　要：光纤声光调制器驱动器作为光纤激光器的重要组成部分,其性能参数对激光品质具有重要影响.该文设计了高频、高功率驱动器方案.该方案通过20～200 kHz脉冲信号控制模拟开关实现脉冲信号和150 MHz载波信号的二进制幅度键控（2ASK）调制,调制信号经功率放大器放大,进行阻抗匹配后输出到声光调制器,驱动声光调制器工作.驱动信号的频率为20～200 kHz,功率为3W.Fiber lasers are widely used in the military and communications fields, the fiber acousto-optic modula tor driver as an important part of the fiber laser, has an important impact on the performance parameters of laser quality. This paper presents a high-frequency, high-power driver solution. The binary amplitude shift keying （2ASK） modulations of the pulse signals and 150 MHz carrier signals are realized through controlling the analog switches of the 20-200 kHz pulse signals, then, the modulated signals are amplified by the power amplifier, and outputs to the acousto optic modulator after impedance matching for driving the acousto-optic modulator to work. The frequency of driving signal is 20-200 kHz, and its power is 3 W.

关 键 词：光纤声光调制器 驱动器 2ASK调制 功率放大 高频 

分 类 号：TN384[电子电信—物理电子学]