Highly efficient phase locking of four diode pumped Nd:YAG laser beams

被引:21
作者
Menard, S
Vampouille, M
Desfarges-Berthelemot, A
Kermene, V
Colombeau, B
Froehly, C
机构
[1] Thomson CSF Optron, F-78283 Guyancourt, France
[2] Fac Sci, Inst Rech Commun Opt & Microondes, UMR CNRS 6615, F-87060 Limoges, France
关键词
end-pumped Nd : YAG lasers; multi-axis lasers; laser phase-locking; Fourier transform cavity; intra-cavity spatial filtering;
D O I
10.1016/S0030-4018(98)00655-5
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe the mutual phase-locking of four Nd:YAG beams longitudinally end-pumped by four fiber-coupled diode lasers. Mutual phase-locking is performed by two types of diffractive components located inside a telescopic Fabry-Perot resonator. The control of the phase-locking is shown and the different spatial eigenmodes connected with the pumping geometry in the resonator are theoretically and experimentally studied. 1.2 W is obtained in a single mode stable pattern with 30% optical-to-optical conversion efficiency in the continuous wave regime. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:344 / 353
页数:10
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