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1.35 W,3.85-3.95 μm连续调谐周期极化掺镁铌酸锂光参量振荡器

Continuous Tuning of a 3.85-3.95 μm,1.35 W Optical Parametric Oscillator Based on PPMgLN

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摘要

周期极化掺镁铌酸锂光参量振荡器(PPMgLN OPOs)是输出高功率、可连续调谐中红外(MIR)激光的理想光源,在激光光谱仪、大气探测、红外信息对抗等应用方面具有很大优势。理论上分析了PPMgLN光参量振荡器的温度调谐特性,计算了脉冲运转单谐振光参量振荡器(SRO)抽运阈值。采用偏振Nd:YAG调Q激光(1064 nm)抽运PPMgLN晶体组成光参量振荡器,抽运阈值功率为1.7 W,与理论计算值接近。当抽运功率为12.3 W时,在波长3.93 μm处获得1.35 W闲频光输出。晶体温度在60-140 ℃范围变化,获得波长3.846-3.952 μm闲频光连续调谐输出,与理论调谐曲线吻合很好。

Abstract

Optical parametric oscillators based on periodically poled MgO-doped lithium niobate (PPMgLN OPOs) are ideal sources for high-power,continuously tunable mid-infrared (MIR) light,which is attractive for applications including laser spectroscopy,atmosphere detection and MIR countermeasure. In this paper,temperature tuning characteristic of PPMgLN OPO and oscillation threshold of pulsed SRO are analyzed theoretically. An OPO with PPMgLN pumped by Nd:YAG (1064 nm) Q-switched polarized laser is reported. The oscillation threshold is 1.7 W,which is close to the theoretical result. Idler output power of 1.35 W at 3.93 μm is achieved with pump power of 12.3 W. Idler wavelength output is tuned continuously from 3.846 to 3.952 μm with temperature varied from 60 to 140 ℃,which is in accordance with the theoretical tuning curve.

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中图分类号:TN248

DOI:10.3788/cjl200936s2.0007

所属栏目:实验技术与元件

基金项目:中国科学院重要方向性项目(KZCX2-YW-215)和国家自然科学基金(D40606011)资助课题。

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网络出版日期:0001-01-01

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熊波:中国科学院 半导体研究所全固态光源实验室,北京 100083
马建立
林学春
李晋闽

联系人作者:熊波(xiongbo@semi.ac.cn)

备注:熊波|主要从事全固态激光器及非线性频率变换等方面的研究|(1984-),男,博士研究生。

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引用该论文

Xiong Bo,Ma Jianli,Lin Xuechun,Li Jinmin. Continuous Tuning of a 3.85-3.95 μm,1.35 W Optical Parametric Oscillator Based on PPMgLN[J]. Chinese Journal of Lasers, 2009, 36(s2): 7-10

熊波,马建立,林学春,李晋闽. 1.35 W,3.85-3.95 μm连续调谐周期极化掺镁铌酸锂光参量振荡器[J]. 中国激光, 2009, 36(s2): 7-10

被引情况

【1】汪六三,曹振松,王欢,赵辉,高伟,袁怿谦,陈卫东,张为俊,高晓明. 宽调谐中红外差频激光及大气水汽浓度探测. 光学学报, 2011, 31(4): 414003--1

【2】邵春雷,陈飞,杨欣欣,阮鹏. 中波红外激光技术最新进展. 中国光学, 2013, 6(4): 501-512

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