传统的1064 nm稳频激光器虽然能达到很高的频率稳定度和不确定度,但其体积比较庞大,系统设计比较复杂。而对于一些激光频率稳定度要求不高的实际应用,如高光谱分辨率气溶胶探测激光雷达,系统简单与缩小体积应该是更受关注的因素。利用碘分子吸收谱线并结合频率调制光谱技术建立了一套小型化的1064 nm稳频激光器,该系统结构紧凑。通过高稳定的波长计进行监测,测量频率稳定后的激光器在10000 s时的阿伦偏差精度小于0.1 MHz。该稳频的1064 nm激光器系统已被用作高光谱分辨率气溶胶探测激光雷达单频脉冲光源的种子激光器。

Although the traditional 1064 nm frequency-stabilized laser can achieve high frequency stability and uncertainty, its volume is relatively large and the system design is more complicated. For some practical applications where the laser frequency stability is not critical, such as hyperspectral resolution aerosol detection laser radar, the simplicity and volume reduction of the system become more of a concern. A miniaturized compact 1064 nm frequency-stabilized laser is built by using iodine molecule absorption lines combined with frequency modulation spectroscopy technology. The system has compact structure. By monitoring with a high stable wavemeter, the accuracy of Allan deviations is less than 0.1 MHz at 10000 s. The frequency-stabilized 1064 nm laser system has been used as a seeder laser for a single-frequency pulsed light source of the hyperspectral aerosol detection laser radar.