The operating distance of a laser radar system is determined on pulse energy, pulsewidth, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
Much attention is payed to the uniformity of pump beam in different condensing cavities. The output energy and pulsewidth are tested with different output mirror transmission.
重点研究了不同聚光腔的泵浦光场均匀性,同时在使用不同透过率输出镜时对激光输出能量和脉宽进行了测试。
3
The results show that the rational combination of welding parameters such as the laser power density, the welding speed, the pulse frequency and pulsewidth influence the quality of the weld beam.