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利用现场可编程门阵列(FPGA),设计了用于纳秒泵浦探测系统上的双激光同步控制器。将来自飞秒激光器的20 Hz同步信号二分频产生参考信号用于触发光纤光谱仪,同时根据PC机对系统的延时设置产生用于触发纳秒激光器Nd:YAG的lamp触发信号、Q-switch触发信号。介绍了双激光器同步控制器应用的纳秒泵浦探测系统原理,详细给出了具体各功能模块的设计。对实验测得的各路触发信号分析表明,本文的设计方案是可行的。
Using a field programmable gate array (FPGA), a dual laser synchronous controller for nanosecond pumping detection system was designed. The 20 Hz sync signal from the femtosecond laser is divided by two to generate a reference signal for triggering the fiber spectrometer and a lamp trigger signal for triggering the nanosecond laser Nd: YAG according to the PC delay set to the system. The Q-switch Trigger signal. The principle of nanosecond pump detection system used in dual laser synchronous controller is introduced. The design of each functional module is given in detail. The experimental analysis of the trigger signal analysis shows that the design of this article is feasible.