基于雪崩级联电路控制激光照明源的水下激光选通成像

基于雪崩级联原理研发了用于水下激光选通成像的MARX级联电路激光照明源.相对于普通激光驱动器,该MARX级联电路有输出脉冲窄、峰值高、上升沿短、重复频率高、成本低、体积小、质量轻等优点.采用级联电路研发的脉冲激光照明光源在实现ns量级脉冲宽度性能的基础上保持了照光源系统体积的小型化.该脉冲照明源结合激光整形及匀化光学技...

Range-gated imaging of underwater laser based on control laser illumination sources of avalanche cascade circuit

A MARX cascade circuit laser illumination source for underwater laser range-gated imaging was developed based on the avalanche cascade principle. Compared with the ordinary laser drivers, this MARX cascade circuit had the advantages of narrow output pulse, high peak voltage, short rising edge, high repetition frequency, low cost, small volume and light weight. The pulsed laser illumination source developed by the cascade circuit maintained the miniaturization of illumination source system volume on the basis of realizing the pulse width performance with nanosecond (ns) magnitude. The experiment of range-gated imaging of underwater was carried out by the pulsed illumination source combined with laser shaping and homogenizing optical technology. With a pulse width of 10 ns, the range-gated imaging in the range of 7 times attenuation length under the water was achieved. The improvement of circuits and optics is of great significance to the reduction of volume and cost, and the application of laser range-gated imaging system.