Non-Gaussian fundamental laser mode oscillation in end-pumped Nd:YVO4 microchip laser

被引：22
作者：
Martel, G
Labbé, C
Sanchez, F
Fromager, M
Aït-Ameur, K
机构：
[1] Univ Rouen, CORIA, UMR 6614, Grp Opt & Optron, F-76821 Mont St Aignan, France
[2] Univ Angers, UMR 6136, Lab POMA, F-49045 Angers, France
[3] ISMRA Univ Caen, CIRIL, UMR6637, F-14050 Caen, France
来源：
OPTICS COMMUNICATIONS | 2002年 / 201卷 / 1-3期
关键词：
D O I：
10.1016/S0030-4018(01)01665-0
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Far-Field non-Gaussian fundamental transverse modes have been obtained in CW end-pumped Nd:YVO4 microchip laser for particular cavity lengths. Such profiles appear at threshold and are not distorted when pump power increases but they strongly depend on the pump to mode size ratio. An implemented theoretical model qualitatively reproduces these transverse profiles. It is based on the hypothesis of diffraction effects of the resonant intra-cavity field on a Gaussian-gain profile. Dependence of the pump to mode size ratio on such profiles will be also theoretically explained. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：117 / 127
页数：11
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