Efficient Nd: YVO4 laser in-band pumped by wavelength-locked 913.9-nm laser diode and Q-switch operation

doi:10.1088/1674-1056/26/2/024206

Abstract An efficient 1064-nm Nd:YVO₄ laser in-band pumped by a wavelength-locked laser diode (LD) at 913.9 nm was demonstrated. The maximum continuous wave (CW) output power of 23.4 W at 1064 nm was realized with the incident pump power of 40 W, corresponding to a total optical-to-optical efficiency of 58.5%. This is to the best of our knowledge the highest total optical-to-optical efficiency and output power of Nd:YVO₄ laser in-band pumped by a 913.9-nm laser diode. The Q-switched operation of this laser was also investigated. Through a contrast experiment of pumping at 808 nm, the experimental results showed that an Nd:YVO₄ laser in-band pumped by a wavelength-locked LD at 913.9 nm had excellent pulse stability and beam quality for high repetition rate Q-switching operation.

Keywords: in-band pumped Nd:YVO₄ laser 1064 nm Q-switched

Received: 19 July 2016
Revised: 20 October 2016
Accepted manuscript online:

PACS:	42.55.Xi	(Diode-pumped lasers)
	42.60.Gd	(Q-switching)
	42.60.By	(Design of specific laser systems)
	42.60.Pk	(Continuous operation)

Fund: Project supported by Tianjin City High School Science & Technology Fund Planning Project (Grant No. 20140703).

Corresponding Authors: Bin Li
E-mail: hawkbaby@163.com

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Bin Li(李斌), Peng Lei(雷鹏), Bing Sun(孙冰), Yang-Bo Bai(白扬博) Efficient Nd: YVO₄ laser in-band pumped by wavelength-locked 913.9-nm laser diode and Q-switch operation 2017 Chin. Phys. B 26 024206

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Efficient Nd: YVO4 laser in-band pumped by wavelength-locked 913.9-nm laser diode and Q-switch operation

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Efficient Nd: YVO₄ laser in-band pumped by wavelength-locked 913.9-nm laser diode and Q-switch operation