Research of optical parametric oscillation of periodically poled MgO-doped LiNbO3 crystal

ZENG Jiangbin; CHEN Huaixi; LIANG Wanguo; MIAO Long; ZHOU Huang; FENG Xinkai; ZOU Xiaolin; LI Guangwei

doi:10.7510/jgjs.issn.1001-3806.2016.03.023

In order to achieve high conversion rate of 3m infrared laser output from an optical parametric oscillation, by using the applied pulse electric field method, periodically poled grating of 31.2m was prepared on MgO-doped(mole fraction of 0.05) lithium niobate crystal with the thickness of 1mm. The relationship between idler wavelength and temperature when periodically poled MgO-doped LiNbO3 pumped by 1064nm pulsed laser was studied by theoretical calculation and simulation. Acousto-optic Q-switched Nd:YAG laser with the wavelength of 1064nm was used as the fundamental source to operate optical parametric oscillation experiment with pulse width of 200ns and repetition rate of 20kHz. When pulse input power is 5.567W at the temperature of 80℃, idler output power of 1.141W was obtained with output wavelength of 3m. The maximum conversion efficiency from incident pump power to idler output was 20.1%. The results show that this method of preparation by periodically poled lithium niobate optical parametric oscillation has high optical conversion efficiency.

Research of optical parametric oscillation of periodically poled MgO-doped LiNbO3 crystal

Corresponding author: LIANG Wanguo, wgl@fjirsm.ac.cn;

1. College of Materials Science and Engineering, Fuzhou University, Fuzhou 350116, China;

2. Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Received Date: 2015-03-31

Accepted Date: 2015-04-23

Available Online: 2016-05-25

Abstract: In order to achieve high conversion rate of 3m infrared laser output from an optical parametric oscillation, by using the applied pulse electric field method, periodically poled grating of 31.2m was prepared on MgO-doped(mole fraction of 0.05) lithium niobate crystal with the thickness of 1mm. The relationship between idler wavelength and temperature when periodically poled MgO-doped LiNbO3 pumped by 1064nm pulsed laser was studied by theoretical calculation and simulation. Acousto-optic Q-switched Nd:YAG laser with the wavelength of 1064nm was used as the fundamental source to operate optical parametric oscillation experiment with pulse width of 200ns and repetition rate of 20kHz. When pulse input power is 5.567W at the temperature of 80℃, idler output power of 1.141W was obtained with output wavelength of 3m. The maximum conversion efficiency from incident pump power to idler output was 20.1%. The results show that this method of preparation by periodically poled lithium niobate optical parametric oscillation has high optical conversion efficiency.

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Reference (18)

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Research of optical parametric oscillation of periodically poled MgO-doped LiNbO3 crystal

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