| Brewster-oriented passive Q-switch intracavity optical parametric oscillator |
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| 作者姓名： | 万勇 朱大勇 曾钦勇 张志勇 张靖 韩凯 |
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| 作者单位： | School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;Southwest Institute of Technical Physics, Chengdu, 610041, China;School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;Southwest Institute of Technical Physics, Chengdu, 610041, China;School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;Southwest Institute of Technical Physics, Chengdu, 610041, China |
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| 摘 要： | The behaviour of passively Q-switched solid-state lasers containing intracavity optical parametric oscillators (OPOs) is described, and a model to optimize this system‘s performance is developed. Meanwhile, an Nd:YAG laserpumped KTiOPO4 (KTP) intracavity OPO for eye safe laser output is studied experimentally. A Brewster-oriented bis-(4-dimethylaminodithiobenzil)-nickel (BDN) dye film is employed in laser cavity, which plays the double role of a passive Q-switch and a Brewster plate, to Q-switch the light to increase its intensity and polarize the light so that the polarization plane of fundamental irradiation is perpendicular to the Z-axis of KTP serving as the OPO nonlinear crystal, thereby providing type Ⅱ phase matching conditions to generate 1.572μm eye-safe signal laser. Eye-safe signal radiations of 6.6mJ per pulse at 1.572μm wavelength and pulse width as narrow as 6.0ns (FWHM) were obtained. Peak power was up to 1.1MW.
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| 关 键 词： | 光学参数共振器 KTiOPO4晶体 眼睛安全 被动Q开关 固体激光器 |
| 收稿时间： | 7/9/2004 12:00:00 AM |
Brewster-oriented passive Q-switch intracavity optical parametric oscillator |
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| Wan Yong,Zhu Da-Yong,Zeng Qin-Yong,Zhang Zhi-Yong,Zhang Jing and Han Kai.Brewster-oriented passive Q-switch intracavity optical parametric oscillator[J].Chinese Physics B,2005,14(4):714-719. |
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| Authors: | Wan Yong Zhu Da-Yong Zeng Qin-Yong Zhang Zhi-Yong Zhang Jing and Han Kai |
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| Institution: | School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China; School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;Southwest Institute of Technical Physics, Chengdu, 610041, China; Southwest Institute of Technical Physics, Chengdu, 610041, China |
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| Abstract: | The behaviour of passively Q-switched solid-state lasers containing intracavity optical parametric oscillators (OPOs) is described, and a model to optimize this system's performance is developed. Meanwhile, an Nd:YAG laser-pumped KTiOPO4 (KTP) intracavity OPO for eye safe laser output is studied experimentally. A Brewster-oriented bis-(4-dimethylaminodithiobenzil)-nickel (BDN) dye film is employed in laser cavity, which plays the double role of a passive Q-switch and a Brewster plate, to Q-switch the light to increase its intensity and polarize the light so that the polarization plane of fundamental irradiation is perpendicular to the $Z$-axis of KTP serving as the OPO nonlinear crystal, thereby providing type II phase matching conditions to generate 1.572$\mu$m eye-safe signal laser. Eye-safe signal radiations of 6.6mJ per pulse at 1.572$\mu$m wavelength and pulse width as narrow as 6.0ns (FWHM) were obtained. Peak power was up to 1.1MW. |
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| Keywords: | optical parametric oscillator KTiOPO44 crystal passive Q-switch eye-safe |
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