Intensity and frequency noise characteristics of two coherently-added injection-locked Nd:YAG lasers

被引：9
|
作者：
Musha, M [1 ]
Kanaya, T [1 ]
Nakagawa, K [1 ]
Ueda, KI [1 ]
机构：
[1] Univ Electrocommun, Inst Laser Sci, Tokyo 1828585, Japan
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2001年 / 73卷 / 03期
关键词：
D O I：
10.1007/s003400100642
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Coherent addition of two injection-locked Nd:YAG lasers has been performed. A maximum output power of 4.4 W and addition efficiency of 0.94 was achieved, which is die highest power-coupling efficiency ever reported. It was shown experimentally that the frequency and intensity noise level of the coherently-added laser are the same as those of a single injection-locked laser. In particular, no additional intensity noise was observed above the relaxation oscillation frequency of the slave laser, which is suitable for use as the light source for a future gravitational wave detector. The frequency noise of the coherently-added laser was suppressed to 1 x 10(-4) Hz/root Hz by controlling that of the master laser, and the intensity noise was also suppressed to 1 x 10(-8) /root Hz by controlling the intensity of pump lasers used for the slave lasers.
引用
收藏
页码：209 / 214
页数：6
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