中国激光, 2005, 32 (7): 993, 网络出版: 2006-06-01
面阵CCD激光束参量测量系统及其实验研究
Experimental Study on Beam Parameter Measurement System by Using Area Array CCD
激光物理 物理电子学 光束参量测量 面阵CCD 模式发生器 M2因子 laser physics physicelectronics beam parameter measurement area array CCD mode generator M2-factor
摘要
采用面阵CCD探测器测量连续和脉冲激光器空间光束的技术,研制了一套高精度激光参量测量系统,测量了激光二极管连续抽运输出波长为1064 nm的固体模式发生器产生的不同阶次厄米高斯光束和脉宽10 ns调Q灯抽运固体激光器的光束参量,分析对比了模式发生器输出光束的理论值和实验测量结果,证明了该系统测量精度优于5%,讨论了测量系统中各种因素对光束参量测量结果的影响。
Abstract
The technical problems concerning the determination of the laser beam parameters by using area array charge couple device (CCD) detector were studied. The beam parameters of Hermite-Gaussian modes generated from laser diode (LD) pumped CW Nd∶YAG laser with 1064 nm and a lamp pumped Q-switched Nd∶YAG laser with 10 ns pulse width were experimentally measured. Comparing the measured beam quality factor M2 with theoretical one, the measuring deviation of M2 was less than 5%. The measuring error of the divergence was elso less than 5%. The influences of various factors on the measured beam parameters were discussed.
高雪松, 高春清, 杨绍状, 高明伟, 李家泽, 魏光辉. 面阵CCD激光束参量测量系统及其实验研究[J]. 中国激光, 2005, 32(7): 993. 高雪松, 高春清, 杨绍状, 高明伟, 李家泽, 魏光辉. Experimental Study on Beam Parameter Measurement System by Using Area Array CCD[J]. Chinese Journal of Lasers, 2005, 32(7): 993.
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