半导体激光起爆试验研究

Experimental Study on the Initiation of Semiconductor Laser

采用BNCP掺杂炭黑作为激光起爆器的点火药剂,研制了具有点火时间检测功能的激光起爆试验装置,工作波长980nm,光功率0-2W可调,脉冲宽度1-200ms可调。利用该装置开展了系列激光点火试验,结果表明:该起爆药剂的发火阈值功率为240mW,最小全发火功率为400mW,最大不发火功率为80mW;点火功率大于最小全发火功率时的典型点火时间为600μs。

The carbon doped BNCP is used as ignition composition, and a laser igniton system, with the function of ignition timing detection, is developed. The working wavelength of the system is 980 nm, and the optical power is 0-2W adjustable, and the pulse width is 1-200 ms adjustable. A series of laser ignition test has been carried out using the laser igniton system, and the test results show that： the threshold optical power of igniton is 240 mW, the minimum total igniton optical power is 400 mW, the maximum no igniton optical power is 80mW; and the typical ignition time is about 600μs.