Linear polarization output performance of Nd: YAG laser at 946 nm considering the energy-transfer upconversion

doi:10.1088/1674-1056/27/7/074211

中国物理B ›› 2018, Vol. 27 ›› Issue (7): 74211-074211.doi: 10.1088/1674-1056/27/7/074211

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Linear polarization output performance of Nd: YAG laser at 946 nm considering the energy-transfer upconversion

Jin-Xia Feng(冯晋霞), Yuan-Ji Li(李渊骥), Kuan-Shou Zhang(张宽收)

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China;
2 Collaborative Innovation Centre of Extreme Optics, Shanxi University, Taiyuan 030006, China

收稿日期:2018-02-02 修回日期:2018-03-05 出版日期:2018-07-05 发布日期:2018-07-05
通讯作者: Kuan-Shou Zhang E-mail:kuanshou@sxu.edu.cn
基金资助:
Project supported by the National Key R&D Program of China (Grant No. 2016YFA0301401) and the Fund for Shanxi ''331 Project'' Key Subjects Construction, China (Grant No. 1331KS).

Linear polarization output performance of Nd: YAG laser at 946 nm considering the energy-transfer upconversion

Jin-Xia Feng(冯晋霞)^1,2, Yuan-Ji Li(李渊骥)^1,2, Kuan-Shou Zhang(张宽收)^1,2

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China;
2 Collaborative Innovation Centre of Extreme Optics, Shanxi University, Taiyuan 030006, China

Received:2018-02-02 Revised:2018-03-05 Online:2018-07-05 Published:2018-07-05
Contact: Kuan-Shou Zhang E-mail:kuanshou@sxu.edu.cn
Supported by:
Project supported by the National Key R&D Program of China (Grant No. 2016YFA0301401) and the Fund for Shanxi ''331 Project'' Key Subjects Construction, China (Grant No. 1331KS).

摘要/Abstract

摘要： A theoretical model of quasi-three-level laser system is developed, in which both the thermally induced depolarization loss and the effect of energy-transfer upconversion are taken into account. Based on the theoretical investigation of the influences of output transmission and incident pump power on thermally induced depolarization loss, the output performance of 946 nm linearly polarized Nd:YAG laser is experimentally studied. By optimizing the transmission of output coupler, a 946 nm linearly polarized continuous-wave single-transverse-mode laser with an output power of 4.2 W and an optical-optical conversion efficiency of 16.8% is obtained, and the measured beam quality factors are M_x²=1.13 and M_y²=1.21. The theoretical prediction is in good agreement with the experimental result.

关键词: 946 nm laser, linear polarization, thermally induced depolarization losses, energy-transfer upconversion

Abstract: A theoretical model of quasi-three-level laser system is developed, in which both the thermally induced depolarization loss and the effect of energy-transfer upconversion are taken into account. Based on the theoretical investigation of the influences of output transmission and incident pump power on thermally induced depolarization loss, the output performance of 946 nm linearly polarized Nd:YAG laser is experimentally studied. By optimizing the transmission of output coupler, a 946 nm linearly polarized continuous-wave single-transverse-mode laser with an output power of 4.2 W and an optical-optical conversion efficiency of 16.8% is obtained, and the measured beam quality factors are M_x²=1.13 and M_y²=1.21. The theoretical prediction is in good agreement with the experimental result.

Key words: 946 nm laser, linear polarization, thermally induced depolarization losses, energy-transfer upconversion

中图分类号: (Diode-pumped lasers)

42.55.Xi

68.60.Dv (Thermal stability; thermal effects) 77.22.Ej (Polarization and depolarization)

冯晋霞, 李渊骥, 张宽收. Linear polarization output performance of Nd: YAG laser at 946 nm considering the energy-transfer upconversion[J]. 中国物理B, 2018, 27(7): 74211-074211.

Jin-Xia Feng(冯晋霞), Yuan-Ji Li(李渊骥), Kuan-Shou Zhang(张宽收). Linear polarization output performance of Nd: YAG laser at 946 nm considering the energy-transfer upconversion[J]. Chin. Phys. B, 2018, 27(7): 74211-074211.

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Linear polarization output performance of Nd: YAG laser at 946 nm considering the energy-transfer upconversion

Linear polarization output performance of Nd: YAG laser at 946 nm considering the energy-transfer upconversion

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