学术
摘 要:
根据计算得到的双波长激光振荡的阈值条件，激光实验中对全反镜镀制1319和1338nm的全反膜（其反射率大于99．73％，而对1064nm激光的反射率约为7％）；输出镜采用对1064nm强谱线95％的高透过率，而对1319和1338nm谱线的透过率分别为34．7％，32．5％，有效抑制了强线1064nm振荡，成功实现了1319和1338nm Nd：YAG同时双波长激光脉冲输出。当输入能量为125J时，1319和1338nm脉冲双波长激光的单脉冲总输出能量为0．89J，电-光转换效率为0．71％，斜率效率为0．89％。输出的双波长激光的中心波长分别在1318．8和1338．2nm处，谱线宽度（FWHM）分别为0．35和0．48nm，强度之比为36：44．[著者文摘]
文章出处:
《强激光与粒子束》-2008年20卷1期 -45-48页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1001-4322（2008）01-0045-04
Output of 1 319 nm and 1 338 nm dual wavelength Nd：YAG pulse laser
WEI Yong, ZHANG Ge, HUANG Cheng-hui, HUANG Ling-xiong, ZHU Hai-yong, SHEN Hong-yuan （Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China）
Abstract:
On the basis of the calculation result of the simultaneous dual wavelength threshold condition, the reflectivities of reflection mirror were more than 99.73% at 1 318.8 nm and 1 338 nm wavelengths,but about 7% at 1 064 nm; the output mirror was coated with the transmissions of 34.7% and 32.5% at 1 319 nm and 1 338 nm, respectively, the transmittance of the output mirror was 95 % for 1 064 nm laser in the experiment. The strongest 1 064 nm line was effectively suppressed and a 1 319 nm and 1 338 nm dual wavelength Nd： YAG pulsed laser was successfully developed. The output energy of 0.89 J was obtained at the pump energy of 125 J with the total efficiency of 0.71% and the slope efficiency of 0. 89 %. The central wavelengths of the output laser are 1 318.8 nm and 1 338.2 nm with the FWHM of 0.35 nm and 0.48 nm, respectively. The intensity ratio of 1 319 nm to 1 338 nm wavelengths is 36 ： 44.[著者文摘]
Key words:
Dual-wavelength; Pulsed laser; Nd：YAG laser; Laser output
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