Design and Experimental Verification of Initiating Explosive Device with Embedded Small Laser Source
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摘要:针对激光火工品系统小型化发展需求，提出了一种基于激光芯片的内嵌小型激光源火工品。以CM封装的激光芯片作为小型激光源，针对激光源设计了4种换能元，通过光路仿真确定了最优的换能元结构及参数；基于仿真设计了激光源、换能元、火工药剂一体化结构的火工品，并对其输出性能进行了试验验证。结果表明：内嵌小型激光源输出功率与供电电流基本呈线性，最大输出功率为5W；焦距为3.2mm的半球形透镜换能元输出激光功率密度最高、光轴最短，为最合适的换能元结构；内嵌小型激光源火工品作用时间在24.0～32.6 μs之间。
Abstract:Aiming at the development demand of miniaturization of laser initiating explosive device system, an embedded small laser source initiating explosive device based on laser chip was proposed. The laser chip in CM package was used as a small laser source, 4 kinds of energy exchange elements were designed for the laser source, and the optimal structure and parameters of the energy exchange element were determined by optical path simulation. Based on the simulation, the initiating explosive device with the integrated structure of laser source, energy exchange element and ignition powder was designed, and its output performance was verified by test. The results show that the output power of the embedded small laser source is basically linear with the power supply current, and the maximum output power is 5W. Energy exchange element of hemispherical lens with focal length of 3.2mm has the highest output laser power density and the shortest optical axis, which is the most suitable energy exchange element structure. The function time of the initiating explosive device with embedded small laser source is 24.0～32.6μs.
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