一种新型脉宽编码激光器的理论研究

Theoretical study of a new kind of pulse width coding laser

针对传统的激光脉冲编码激光器通常采用脉冲重复频率编码易受干扰的技术现状,提出了采用脉宽可调激光器进行激光脉冲宽度编码的新构想。并由此进一步提出了一种采用快速电光削波技术的脉宽可调激光器作为脉宽编码激光器的实现方案,这种脉宽编码激光器由种子激光源,电光削波组件及激光放大器组成,用可编程控制器控制延迟电路来改变普克尔盒电极上的电脉冲宽度,最终实现输出激光脉冲的脉宽可调。完成了这种脉宽编码激光器及其实验系统的理论设计。初步的分析结果证实了该方案的可行性。

According to the traditional pulse coding lasers＇ technology status that its pulse repeating frequency coding can be easily interfered, a new idea of laser pulse width coding was put forward applying pulse width tuning laser. For this reason, a kind of pulse width tuning laser realization project applying frequent electro-optic chopping wave technology was put forward. This kind of pulse coding laser was made up of seed laser, electro-optic chopping wave groupware and laser amplifier. The programmable controller was used to control the retard circuits to alter the electric pulse width on the pole of the Pockels cell，and then the output laser pulse could be tuned. The academic design of this pulse coding laser and its experimental system were finished. The primary analysis approves the feasibility of the project。