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
收藏
页码：1575 / 1577
页数：3
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