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| 138 W窄脉宽全固态绿光激光器 | |
| 引用本文： | 王暖让,王灿召,苑利钢,姜东升,杨苏辉,赵长明.138 W窄脉宽全固态绿光激光器[J].中国激光,2006,33(8):017-1020. |
| 作者姓名： | 王暖让 王灿召 苑利钢 姜东升 杨苏辉 赵长明 |
| 作者单位： | 1. 北京理工大学光电工程系,北京,100081;航天二院203所,北京,100854 2. 北京理工大学光电工程系,北京,100081 3. 华北光电技术研究所,北京,100015 |
| 摘 要： | 报道了绿光平均功率达138 W的声光调Q内腔倍频全固态Nd∶YAG绿光激光器。为了进一步提高绿光激光器的输出功率以及压窄脉宽,通过倍频晶体相位匹配角随温度变化的分析以及腔型的研究,设计并优化了U型谐振腔。实验中采用两个聚光腔,每个聚光腔由35个20 W的高功率激光二极管(LD)侧面抽运Nd∶YAG棒,利用Ⅱ类相位匹配KTP晶体腔内倍频,实现了高平均功率内腔倍频激光器的稳定运转。在两个聚光腔的激光二极管抽运电流分别为18.5 A,20.5 A时,获得了重复频率为10 kHz,脉冲宽度优于49 ns,输出功率为138 W的高功率、高重复频率、窄脉宽绿光(532 nm)输出,光-光转换效率为14.1%,不稳定度为±2.8%。 |
| 关 键 词： | 激光技术 Nd∶YAG激光器 U型谐振腔 532nm绿光 内腔倍频 窄脉宽 |
| 文章编号： | 0258-7025（2006）08-1017-04 |
| 收稿时间： | 2006-01-10 |
| 修稿时间： | 2006-02-14 |
138 W Narrow Pulse-Width Solid-State Green Laser Operation |
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| WANG Nuan-rang,WANG Can-zhao,YUAN Li-gang,JIANG Dong-sheng,YANG Su-hui,ZHAO Chang-ming.138 W Narrow Pulse-Width Solid-State Green Laser Operation[J].Chinese Journal of Lasers,2006,33(8):017-1020. | |
| Authors: | WANG Nuan-rang WANG Can-zhao YUAN Li-gang JIANG Dong-sheng YANG Su-hui ZHAO Chang-ming |
| Abstract: | An average power of 138 W green beam operation by intracavity frequency doubling of acousto-optic Q-switch solid-state Nd∶YAG laser is reported. An U type resonator is designed and optimized in order to compress pulse-width and increase the average power. Two Nd∶YAG rods were employed and a type Ⅱ phase matched KTP crystal (=25°, θ=90° under the condition of 24 ℃, the size is 7 mm×7 mm×7 mm) was applied for frequency doubling. Under the pumping currents of 18.5 A and 20.5 A, a maximum green power of 138 W was generated at 10 kHz repetition rate and 49 ns pulse-width, leading to 14.1% of optical-optical conversion efficiency and ±2.8% instability. |
| Keywords: | laser technique Nd∶YAG laser U type cavity green beam at 532 nm intracavity frequency doubling narrow pulse-width |
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