高功率激光脉冲光纤取样的实验研究  

Experimental Research on Pulse-Shape Measurement of High Power Laser with the Use of Fiber Sampling Techniques

作　　者：徐隆波[1] 刘华[1] 彭志涛[1] 孙志红[1] 秦兴武[1] 康世发[2] 达争尚[2] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]中科院西安光机所,陕西西安710119

出　　处：《光学与光电技术》2008年第3期35-37,共3页Optics & Optoelectronic Technology

摘　　要：光纤取样可以降低高功率激光脉冲时间波形测量成本,并提高测量系统抗干扰能力。光纤耦合效率、信号保真度、信号获取率是采用光纤取样测量高功率激光脉冲时间波形的难点。针对大型高功率激光脉冲宽度窄、光束口径大以及输出光束远场漂移量大等特点,设计了一套激光脉冲光纤取样系统,在全口径取样和不降低信号保真度的条件下有效解决了测量系统信号获取率低下的问题,充分保证了测量系统的可靠性。By using the method of fiber sampling, the cost of measuring high power laser＇s pulse wave can be cut down, and the anti-jamming ability of the measuring system can be improved. However, coupling efficiency, signal fidelity and sampling stability are difficult to deal with the method of fiber sampling. Aiming at the characteristics of high power laser, we design a sort of sampling system. In condition of full caliber sampling, we develope the sampling stability without reducing the signal fidelity. The measuring system is much more reliabe.

关 键 词：高功率激光 光纤取样 脉冲波形 

分 类 号：TN248[电子电信—物理电子学]