为在太赫兹波段的遥感生物探测预警雷达系统、光电对抗、成像探测以及高速通信提供小型野外使用的军用全固态紧凑太赫兹辐射器, 研制了一种小型便携式太赫兹辐射器的光泵浦源, 采用了无热电制冷器(TEC)温度控制的二极管泵浦Nd:YAG固体激光, 激光输出能量150 mJ, 脉冲宽度最小6 ns, 激光重频最大30 Hz, 激光束散角最小约1 mrad。用这样的泵浦源进行光泵浦TPO-THz, 产生的1.63 THz波的单脉冲能量为2.98 μJ, 对应的THz波能量转换效率为1.92×10-5。

A portable optical pumping source for terahertz radiator is developed in order to provide a military compact solid-state terahertz radiator used in field environment, for the remote sensing for biological early warning detection system, optical electrical countermeasure, photoelectric imaging detection and high-speed communication in the terahertz waveband. Making use of the diode pumped Nd:YAG solid state laser without Thermo Electric Cooler(TEC) temperature control, the laser output energy of 150 mJ, the minimum pulse width of 6 ns, the largest laser frequency 30 Hz , laser beam divergence about 1 mrad are obtained. For the THz wave Parametric Oscillator(TPO)-THz by this pumping source, the 1.63 THz wave with single pulse energy 2.98 μJ is achieved, and the THz wave energy conversion efficiency is 1.92×10-5.