毕业设计（论文）-太阳能直接泵浦 NdYAG 激光研究.doc

文档介绍：本科生毕业设计
太阳能直接泵浦 Nd:YAG 激光研究
STUDIES ON DIRECT SOLAR PUMPED
Nd:YAG LASER
学生姓名
专业
电子科学与技术
学号
指导教师
分院
光电科学分院
2011年6月
摘要
第一台激光器问世不久,便有人致力于太阳能激光器的研究工作,鉴于Nd:YAG晶体的特点,所以阳光泵浦Nd:YAG激光器获得了长足发展,其研究和应用均取得了可喜的成绩,太阳能转化为激光的效率不断提高,输出功率逐渐增加,性能不断完善,各种应用构想相继出台。根据空间太阳能具有能流密度大、不受昼夜气候影响等特点,它可以被用于直接或者间接的泵浦固态激光器。在利用间接泵浦固态激光器时,太阳光到激光的能量转换过程比较多,效率较低。在直接泵浦时,由于没有中间环节,因而太阳光到激光转换效率高,且具有结构简单,可靠性好的特点。因此,直接太阳光泵浦实现阳光到激光的转换是有潜在重要性。
本论文主要介绍了太阳光直接泵浦 Nd:YAG 激光器主要特点和应用前景。同时对 Nd:YAG 激光晶体的性质、空间太阳光辐射特点做了一下介绍,通过 5800k 时的黑体辐射模拟太阳光对 Nd:YAG 激光晶体吸收光谱与太阳光谱的匹配进行了分析,理论上证明了 Nd:YAG 作为太阳能直接泵浦激光物质的可行性。
关键词复合抛物面聚光器(CPC) 太阳能激光器斜率效率聚光比
ABSTRACT
The advent of the first laser, it mitted to the solar laser research, given the characteristics of the Nd: YAG crystal, so the sun - pumped Nd: YAG laser to obtain a rapid development, its research and application achieved gratifying results, solar continuously improve the efficiency of laser output power is gradually increased, performance, continuous improvement, and a variety of application ideas were introduced. Space solar energy flux density, from the day and night climate impact, it can be used directly or indirectly-pumped solid state lasers. The use of indirect-pumped solid-state lasers, sunlight to laser energy conversion process are more and less efficient. Directly pumped, in the absence of intermediate links, and thus sunlight to laser conversion efficiency is high, and has a simple structure, good reliability. Therefore, direct sunlight the pump to achieve the conversion of sunlight into laser is potentially paper introduces the main characteristics and prospects of sunlight directly pumped Nd: YAG laser. The characteristics of the Nd: YAG laser crystal nature, space, sunlight radiation introduced sunlight through 5800k blackbody radiation simulation of Nd: YAG laser crystal absorption spectra and the matching of the solar spectrum were analyzed theoretically proved that the Nd: YAG as the feasibility of direct solar-pumped laser materi