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Proceedings Paper

Comparison of high repetition rate Q-switched 355nm ultraviolet lasers with EOM and AOM
Author(s): Tingting Lu; Xiaolei Li; Huaguo Zang; Xiaolei Zhu
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Paper Abstract

Two kinds of Q-switched ultraviolet lasers using an acousto-optic modulator and an electro-optic modulator in the same cavity structure are demonstrated, with type I phase-matched LBO as second harmonic generation crystal and type II phase-matched LBO as third harmonic generation crystal. For acousto-optic Q-switched UV laser,a maximum average power of 6.3W with the shortest pulse width of 12 ns was obtained at the repetition rate of 22 kHz when the pump power reached 52.4 W. The optical conversion efficiency was up to 12%. Then we used a La3Ga5SiO14 crystal electro-optic modulator to replace the acousto-optic modulator. The 1.29W output power at 355nm wavelength was obtained at the repetition rate of 10 kHz when the pump power was increased to 20.4W, and the UV laser pulse width was as short as 9.6ns.The optical conversion efficiency was up to 6.3%.

Paper Details

Date Published: 16 May 2013
PDF: 6 pages
Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 87961T (16 May 2013); doi: 10.1117/12.2010791
Show Author Affiliations
Tingting Lu, Shanghai Institute of Optics and Fine Mechanics (China)
Xiaolei Li, Shanghai Institute of Optics and Fine Mechanics (China)
Huaguo Zang, Shanghai Institute of Optics and Fine Mechanics (China)
Xiaolei Zhu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8796:
2nd International Symposium on Laser Interaction with Matter (LIMIS 2012)
Stefan Kaierle; Jingru Liu; Jianlin Cao, Editor(s)

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