超高速光纤耦合声光调制器的设计及其应用  

Design and application of ultra high-speed fiber coupled acousto-optic modulator

作　　者：陈华志 周建国 吴中超[1] 吴畏[1] 刘保见[1] 王智林[1] 高维松[1] 曹家强[1] CHEN Huazhi;ZHOU Jianguo;WU Zhongchao;WU Wei;LIU Baojian;WANG Zhilin;GAO Weisong;CAO Jiaqiang(26th Institute of China Electronic Technology Group Corporation,Chongqing 400060,China)

机构地区：[1]中国电子科技集团公司第二十六研究所,重庆400060

出　　处：《应用声学》2019年第2期166-172,共7页Journal of Applied Acoustics

摘　　要：为实现小于10 ns光脉冲上升时间的超高速声光调制,该文提出一种光纤耦合声光调制器光脉冲时域响应的理论设计仿真方法。利用该方法对1064 nm和1550 nm工作波长光纤耦合声光调制器进行了仿真,结果预测器件的光脉冲上升时间分别为9.4 ns和9.1 ns;通过器件制作和测试验证,两个波长的器件实测光脉冲上升时间分别为9.74 ns和9.22 ns,实测与理论仿真结果偏差较小。文章最后对器件在超快光纤激光器种子源光脉冲选单、光纤水听阵列时分复用及潜在的宽带移频应用进行了介绍。To realize the ultra-high speed acousto-optic modulation of less than 10 nanosecond optical pulse rise time,this article proposes a theoretical method to simulate the optical pulse temporal response of fiber coupled acousto-optic modulator.Simulations are conducted for both 1064 nm and 1550 nm fiber coupled acousto-optic modulators,which predict the optical pulse rise time of devices are respectively 9.4 ns and 9.1 ns.Through devices fabricating and testing,the actual measured optical pulse rise time performances of the two devices are respectively 9.74 ns and 9.22 ns,and the deviations between results of actual measurement and theoretical simulation are small.At the end of the article,it introduces the devices'applications in optical pulse picking for ultrafast fiber laser seed source,time division multiplexing of fiber-optic hydrophone arrays,and potential broadband frequency shifting.

关 键 词：光纤耦合声光调制器 光脉冲上升时间 光脉冲选单 时分复用 宽带移频 

分 类 号：TN65[电子电信—电路与系统] TB552[理学—物理]