CAJ | 학술논문

采用光束并合的方法可以提高脉冲半导体激光器峰值功率以及远场光斑的均匀性，从而提高激光主动成像系统的作用距离，并实现系统的小型化。首先应用指数高斯光束传输模型推导了并合光束的远场能量分布，并采用Matlab仿真软件对影响光束并合效果的各激光器间轴线夹角、各激光器延迟时间以及并合激光器的间距等参数进行研究，最后进行光束并合实验，获得了1.5 km外目标的选通成像图像，对比了不同并合激光数目对成像性能的影响，验证了光束并合方法可以有效地改进成像质量。
채용광속병합적방법가이제고맥충반도체격광기봉치공솔이급원장광반적균균성，종이제고격광주동성상계통적작용거리，병실현계통적소형화。수선응용지수고사광속전수모형추도료병합광속적원장능량분포，병채용Matlab방진연건대영향광속병합효과적각격광기간축선협각、각격광기연지시간이급병합격광기적간거등삼수진행연구，최후진행광속병합실험，획득료1.5 km외목표적선통성상도상，대비료불동병합격광수목대성상성능적영향，험증료광속병합방법가이유효지개진성상질량。
Multi-beam combining is an effective method for improving the power and far-field beam uniformity of pulsed laser diode. It can also increase the imaging range, and the laser active imaging system can be miniaturized. First, the combining beams distribution was derivated using Exponent-Gaussian model. Then the influence of some parameters such as the angle of the laser diodes away from horizontal line, the spacing between laser diodes and the lasing delay times were simulated with Matlab. Finally, the range-gated imaging beyond 1.5 km was obtained. It can be concluded that multi-beam combining can improve the performance of the range-gated imaging by comparing the imaging of different numbers of the laser diode.