Experimental study on transverse-mode controlling with coated concave mirror for large-mode-area fiber laser

被引：0
|
作者：
Xue, Dong [1 ]
Liu, Yang [1 ]
机构：
[1] Zaozhuang Univ, Zaozhuang 277100, Peoples R China
来源：
OPTIK | 2013年 / 124卷 / 18期
关键词：
Fiber laser; Large-mode-area; Mode control; DOPED FIBER; MULTIMODE; OPERATION;
D O I：
10.1016/j.ijleo.2013.02.023
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new mode control method is introduced in the linear cavity large-mode-area (LMA) fiber laser. In our experiment, the cavity mirror was replaced by a coated concave mirror which only reflects the lower order lasers propagating along the fiber axis. And the higher order modes of the multimode LMA fiber are suppressed according to the mode competition theory. The beam quality gets better at the expense of slope efficiency. Output power of 12 Ws is obtained with M-2 of 1.20, which is much better than the uncontrolled laser beam with M-2 of 2.65. (C) 2013 Elsevier GmbH. All rights reserved.
引用
收藏
页码：3723 / 3725
页数：3
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