基于FPGA的双激光器同步控制的实现

Dual-laser synchronization control system based on FPGA

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。

A FPGA-based dual-laser synchronization control system used in the nanosecond-pumped laser system is realized.The 2-frequency division of the 20 Hz synchronized signal from the femtosecond-laser is produced for triggering the fiber spectrograph.Meanwhile,according to the delay time set by the PC,the signals for triggering the nanosecond-laser are generated,including the lamp triggering signal and the Q-switch signal.The principle of the nanosecond pump detection system for the application of double-laser synchronizing control is described.The design of each module is presented in detail,and the analysis on the triggering signals of each channel from the experiment shows that it is feasible.