A novel gain medium: Micro-sphere array cooled by refractive index-matched coolant

被引：5
作者：
Gui, Luo [1 ]
Ding, Jianyong [2 ]
She, Jiangbo [3 ]
Peng, Bo [3 ,4 ]
Wei, Wei [2 ,3 ]
Fan, Dianyuan [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab High Power Laser & Phys, Shanghai 201800, Peoples R China
[2] Nanjing Univ Posts & Telecommun, Acad Optoelect Engn, Nanjing 210046, Jiangsu, Peoples R China
[3] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
[4] Nanjing Univ Posts & Telecommun, IAM, Key Lab Organ Elect & Informat Displays, Nanjing 210046, Jiangsu, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2013年 / 305卷
基金：
中国国家自然科学基金;
关键词：
Gain medium; Thermal management; Thermal load capacity; Refractive index; Micro-sphere; High power laser;
D O I：
10.1016/j.optcom.2013.04.072
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A micro-sphere array laser gain medium cooled by refractive index-matched coolant was demonstrated for the first time to our knowledge. The new concept is possessed of potential to improve thermal management, to increase the thermal load capacity and to build large scale laser medium with small-sized solid laser materials. The feasibility was experimentally proved with an oscillator experiment in which reliable laser output was observed: the maximum output was 113.3 mJ for the pump energy of 765.8 mJ, the threshold was 131.7 mJ and the slope efficiency was 19%. Promising improvement could be achieved by employing methods for maintaining accurate refractive index matching during the lasing process. (C) 2013 Published by Elsevier B.V.
引用
收藏
页码：91 / 95
页数：5
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