Stable high-power Er:YAG ceramic single-frequency laser at 1645 nm

被引：9

作者：

Wang, Lei ^{[1
]}

Ye, Qing ^{[2
]}

Gao, Mingwei ^{[2
]}

Gao, Chunqing ^{[2
]}

Wang, Sijia ^{[1
]}

机构：

[1] China Acad Space Technol, Qian Xuesen Lab Space Technol, Beijing 100094, Peoples R China

[2] Beijing Inst Technol, Sch Optoelect, Beijing 100081, Peoples R China

来源：

OPTICS EXPRESS | 2016年 / 24卷 / 13期

基金：

中国国家自然科学基金;

关键词：

NONPLANAR RING OSCILLATOR; ROOM-TEMPERATURE; MU-M; HIGH-EFFICIENCY; OUTPUT; DIODE; YAG;

D O I：

10.1364/OE.24.014966

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A stable high-power single-frequency laser at 1645 nm from a monolithic Er:YAG ceramic nonplanar ring oscillator (NPRO) was demonstrated. 10.7 W single-frequency laser output was obtained with a slope efficiency of 61.2% and an optical efficiency of 52.1% with respect to incident pump power. The laser always stably operated in single-frequency mode with the pump power increasing from threshold to maximum pump power. When the crystal's set temperature changed from 17.2 degrees C to 26.6 degrees C, the Er:YAG ceramic NPRO had stable single-frequency laser output, and the widest continuous tuning range without mode-hoping was 4.5 GHz. The linewidth of the single-frequency laser was 5.75 kHz. The beam quality M-2 factors were 1.23 and 1.24 in x and y directions, respectively. (C) 2016 Optical Society of America

引用

页码：14966 / 14973

页数：8

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