Single-frequency laser oscillator with watts-level output power at 1.5 μm by use of a twisted-mode technique

被引:34
作者
Polynkin, P [1 ]
Polynkin, A [1 ]
Mansuripur, M [1 ]
Moloney, J [1 ]
Peyghambarian, N [1 ]
机构
[1] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA
关键词
D O I
10.1364/OL.30.002745
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report an all-fiber laser oscillator producing as much as 1.9 W of single-frequency direct output at 1.5 mu m. Spatial gain hole burning in the active fiber has been eliminated by use of a twisted-mode cavity approach. The two short pieces of a polarization-maintaining fiber that were spliced to the ends of the active fiber served as ultracompact quarter-wave plates. To our knowledge, the use of such a wave plate to manipulate the polarization state of light inside a fiber laser cavity is reported here for the first time. The laser output is linearly polarized and delivered through a polarization-maintaining fiber pigtail. We believe that the output power of our laser is the highest among all single-frequency fiber laser oscillators reported to date. (c) 2005 Optical Society of America
引用
收藏
页码:2745 / 2747
页数:3
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