Design and performance of a composite Tm: YAG laser pumped by VBG-stabilized narrow-band laser diode

doi:10.1088/1674-1056/26/7/074211

Abstract A 2-μm composite Tm:YAG laser pumped with a narrow-band laser diode was presented. The temperature distribution and thermal lens in the Tm:YAG were numerically simulated by a finite element method and the results were used to design the special cavity, in order to achieve a high efficiency and stable output. With a 25-W incident pump power, we obtained a maximum output power of 11 W at 2018.5 nm, corresponding to a slope efficiency of 51.3% and an optical-to-optical efficiency of 44.5%, respectively. The beam quality was measured to be M_x²=1.8 and M_y²=1.6.

Keywords: Tm:YAG 2μm laser thermal effects diode-pumped

Received: 16 February 2017
Revised: 18 March 2017
Accepted manuscript online:

PACS:	42.55.Xi	(Diode-pumped lasers)
	42.72.Ai	(Infrared sources)
	42.60.Da	(Resonators, cavities, amplifiers, arrays, and rings)
	42.60.By	(Design of specific laser systems)

Fund: Project supported by the Science and Technology Major Project of Fujian Province,China (Grant No.2013HZ0003-2).

Corresponding Authors: Wen-Xiong Lin
E-mail: wxlin@fjirsm.ac.cn

Cite this article:

Shu-Tao Dai(戴殊韬), Jian-Hong Huang(黄见洪), Hai-Zhou Huang(黄海舟), Li-Xia Wu(吴丽霞), Jin-Hui Li(李锦辉), Jing Deng(邓晶), Yan Ge(葛燕), Wen-Xiong Lin(林文雄) Design and performance of a composite Tm: YAG laser pumped by VBG-stabilized narrow-band laser diode 2017 Chin. Phys. B 26 074211

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Design and performance of a composite Tm: YAG laser pumped by VBG-stabilized narrow-band laser diode

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