In-band pumped highly efficient Ho:YAG ceramic laser with 21 W output power at 2097 nm

被引：59

作者：

Chen, Hao ^{[1
,3
]}

Shen, Deyuan ^{[1
]}

Zhang, Jian ^{[2
]}

Yang, Hao ^{[2
]}

Tang, Dingyuan ^{[2
]}

Zhao, Ting ^{[3
]}

Yang, Xiaofang ^{[3
]}

机构：

[1] Fudan Univ, Dept Opt Sci & Engn, Minist Educ, Key Lab Micro & Nano Photon Struct, Shanghai 200433, Peoples R China

[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

[3] Xuzhou Normal Univ, Sch Phys Sci & Elect Engn, Xuzhou 221116, Peoples R China

来源：

OPTICS LETTERS | 2011年 / 36卷 / 09期

基金：

中国国家自然科学基金;

关键词：

HO-YAG LASER; UP-CONVERSION; TM; PERFORMANCE; FABRICATION;

D O I：

10.1364/OL.36.001575

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the high-power and high-efficiency operation of a polycrystalline Ho:YAG ceramic laser in-band pumped by a Tm fiber laser at similar to 1907nm. Lasing characteristics of a 1.5 at.% and a 2.0 at.% Ho3+-doped YAG ceramic were investigated and compared. Using an output coupler of 6% transmission, over 21.4 W of cw output power at 2097nm has been generated with the 1.5 at.% doped Ho:YAG ceramic under 35 W of incident pump power, corresponding to an average slope efficiency with respect to the incident pump power of 63.6% and an optical-to-optical conversion efficiency of 61.1%. (C) 2011 Optical Society of America

引用

页码：1575 / 1577

页数：3

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