A High-Performance Annularly Stacked Laser Diode Pump

被引：0

作者：

Li, Junli ^{[1
]}

Sun, Lichen ^{[1
]}

Liu, Ming ^{[1
]}

Han, Yang ^{[1
]}

Fu, Tuanwei ^{[1
]}

Cai, Lei ^{[1
]}

Zheng, Yanfang ^{[1
]}

Yan, Minna ^{[1
]}

Wang, Juan ^{[1
]}

Tao, Chunhua ^{[1
]}

Gao, Lijun ^{[1
]}

Wang, Jingwei ^{[1
]}

Zah, Chung-en ^{[1
]}

Liu, Xingsheng ^{[1
,2
]}

机构：

[1] Focuslight Technol Inc, 56 Zhangba 6th Rd, Xian 710077, Shaanxi, Peoples R China

[2] Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, 17 Xinxi Rd,New Ind Pk, Xian, Shaanxi, Peoples R China

来源：

SEMICONDUCTOR LASERS AND APPLICATIONS X | 2020年 / 11545卷

关键词：

high peak power; annular stack; macro channel; uniformity of centroid wavelength;

D O I：

10.1117/12.2573534

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A high peak power annularly-stacked laser diode pump has been designed and manufactured for a solid state laser (SSL), which is constructed by 12 single annular stacks composed of 3-bar laser diode (LD) submodules. High peak power and high wavelength uniformity have been considered. Macro channel cooling has been used during the operation of the annular stacks, at typical coolant flow rate of 2L/min. Heat dissipation and stress of a single annular stack have been simulated by finite element software, which shows high temperature uniformity of 3-bar submodules (+/- 0.5 degrees C) and low package stress (11.8MP). The peak power of the annularly stacked laser diode pump has reached 234kW at a peak current of 450A or less. A high uniformity of centroid wavelength (802.1nm) with a full width at half maximum (FWHM) of 4nm has been measured. More than 24 million shots have been verified for the 3-bar LD submodules.

引用

页数：14

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