摘要
激光发射电路是激光近炸引信系统的重要组成部分,其技术指标直接影响整个激光引信系统的工作性能。实现激光的高功率、窄脉冲是提高激光引信系统作用距离、动态探测精度和抗云雾干扰能力的重要手段。但是,由于受激光器、驱动电路分布参数和工艺技术的影响,当激光脉冲宽度窄到一定程度时,激光脉冲峰值功率明显下降,要实现小体积的高功率、窄脉冲激光发射将面临许多实际问题。针对这一现象,从理论上对激光发射电路进行了分析,通过PSPICE软件仿真提出问题的所在,即激光器的寄生电感和放电回路杂散参数的存在严重影响了激光脉冲前沿速度和峰值功率。从驱动电路设计、元器件和激光器的选择与电路板布局布线出发,给出了相应的解决方法。
The laser emitting circuit is an important part of laser proximity fuze system of which the characteristic affects the performance of laser proximity fuze directly.To gain the laser pulse with high-power and short-pulse,it is important to improve the operation distance,the dynamic detection accuracy and the ability of anti-interference of fog.But,there are many actual problems on gaining the laser pulse with high-power,short-pulse and small volume.When the laser pulse′s width is becoming narrow to some certain,the peak power of laser pulse falls,which is influenced by the laser,driving circuit distributing parameter,process technology,and so on.In this paper,first of all,the laser emitting circuit was analyzed theoretically,secondly,PSPICE model and simulated waves were built.The results show that the parasitic inductance of laser and stray parameter of discharge loop may affect the frontier velocity of laser pulse and peak power.The relative solution methods were given from driven circuit design,components and laser selection,and circuit board layout.
出处
《红外与激光工程》
EI
CSCD
北大核心
2010年第6期1049-1054,共6页
Infrared and Laser Engineering
基金
武器装备预研基金项目
天津津航技术物理研究所科技创新基金项目
