高能激光注入光纤导光锥耦合性能实验研究

Experimental Research on Coupling Technique of Optical Fiber for High Power Lasers

摘要:

提出了测试光纤导光锥耦合效率的试验方法,通过试验验证了光纤导光锥实现激光传导的可行性,同时在光纤入射角度为1°～5°、运动状态为静止及甩动的条件下,对光纤导光锥的耦合效率进行了实验研究。研究结果表明,光纤导光锥在入射角为1°～5°、光斑直径约为2mm时的激光耦合传输效率大于60%,入射光损伤耐受力低于100mJ。利用光纤导光锥实现高能激光的耦合导光,对于开展光电对抗内场仿真试验具有重要意义。

Abstract:

A test method for the coupling efficiency of the taper fiber was presented. Using the taper fiber to transport laser was verified to be feasible by trial. The coupling efficiencies of the taper fiber at different angles 1o ~5o and different state rest and swing were studied. By analyzing the light guidance characteristics of the taper fiber, a design method for the optical fiber coupling system of the high-energy laser was presented. Research results show that the taper fiber can be used to realize light guidance of the high-energy laser beam under certain conditions, and the laser coupling transportation efficiency of the taper fiber is higher than 60% at the angle 5o. The threshold is more than 100mJ. It is important to realize coupling light guidance of high-energy laser with an taper fiber for the development of the opto-electrical internal field simulation trial.