中国光学2012，Vol.5Issue(6)：671-676,6.
大功率TEACO2非稳腔激光器的远场传输特性
Far-field transmittance characteristics of high-power unstable resonator TEA CO2 laser
摘要
Abstract
A new method combining relative measurement and absolute measurement is proposed to measure the transmittance characteristics of far-field beam quality of TEA CO2 lasers, and the intensity distribution for a 2 kW pulsed TEA CO2 laser in the distance of 500 m is obtained. The measurement results are discussed and analyzed. The experimental results show that the measurement is convenient and precise, and the influence of atmospheric turbulence is also taken into consideration. Flat top, fragmentation and furthermore side lobe ap- pear in the intensity distribution. Measured by this method, the transmission rate of atmosphere is 81.5%,the maximum intensity is 1.59 W/cm2 and the divergence angle of cross direction is up to 0. 64 mrad, which agree with the theoretical results. It is a very important reference for evaluating the effectiveness and optimization de- sign of laser systems.关键词
非稳腔激光器/光束传输特性/发散角/功率密度分布Key words
unstable resonator laser/beam transmittance characteristic/divergence angle/power density distri- bution分类
信息技术与安全科学引用本文复制引用
王晓铭,郭劲,郭汝海,王挺峰..大功率TEACO2非稳腔激光器的远场传输特性[J].中国光学,2012,5(6):671-676,6.基金项目
吉林省自然科学基金资助项目 （）
激光与物质相互作用国家重点实验室自主基础研究课题资助项目 （）
院地合作长吉图专项基金资助项目 （）
