Third-harmonic generation in AgGaSe2 crystals based on CO2 laser
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1.
Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
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2.
Department of Computer Science, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
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Received Date:
2012-09-17
Accepted Date:
2012-11-02
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Abstract
In order to generate the third harmonic in AgGaSe2 crystals, Ⅰand Ⅱ phase-match were applied for the second and third harmonics of CO2 laser respectively. In the experiment, output wavelength of CO2 laser was 9.6m. The peak power of the second-harmonic at 4.8m was 88kW and the peak power of the third-harmonic at 3.2m was 4kW respectively. The phase-matching acceptance angle was measured. The results show that the second-harmonic wave and the third-harmonic wave are acquired effectively and peak power of the second-harmonic wave and third-harmonic wave increase rapidly with the increase of input power of CO2 laser.
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