中国激光, 2011, 38 (12): 1202003, 网络出版: 2011-11-15   

基于周期极化掺镁铌酸锂晶体的中红外同步抽运皮秒光参量振荡器

Mid-Infrared Synchronously Pumped Picosecond Optical Parametric Oscillator Based on PPMgLN Crystal
作者单位
国防科学技术大学光电科学与工程学院, 湖南 长沙 410073
摘要
采用全光纤主振荡功率放大(MOPA)结构皮秒脉冲激光器作为抽运源,搭建同步抽运光参量振荡器(OPO),实现了中红外波段的皮秒脉冲激光输出。光纤激光器输出脉冲重复频率为52 MHz,脉宽约20 ps,中心波长1064 nm。使用一块长50 mm、极化光栅周期为30.5 μm的周期极化掺镁铌酸锂(PPMgLN)作为非线性频率转换晶体,采用信号光单谐振腔结构,在抽运功率5.2 W时获得了平均功率为0.67 W的闲频光输出,中红外参量转换效率为12.9%,斜率效率达14.5%。通过改变晶体温度的方式实现了输出波长在1.544~1.608 μm(信号光)和3.15~3.42 μm(闲频光)范围内的调谐。从腔长同步匹配的角度讨论了该OPO系统的输出稳定性。
Abstract
A picosecond mid-infrared optical parametric oscillator (OPO) synchronously pumped by an Yb-doped fiber laser is reported. The OPO is pumped by an all fiber master oscillator power amplifier (MOPA) centered at 1064 nm picosecond pulses with duration of 20 ps at a repetition rate of 52 MHz. A 50 mm periodically poled MgO-doped LiNbO3 (PPMgLN) with a poled grating period of 30.5 μm is used as the nonlinear crystal and a single resonant cavity is adopted. At room temperature, 0.67 W average idler is obtained at pump power of 5.2 W with the conversion efficiency from pump to idler being 12.9% and the slope efficiency being 14.5%. By controlling the temperature of PPMgLN crystal, the wavelength tuning range can cover 1.544~1.608 μm (singal) and 3.15~3.43 μm (idler). Additionally, the stability of this OPO system is discussed.

刘通, 汪晓波, 刘磊, 李霄, 侯静. 基于周期极化掺镁铌酸锂晶体的中红外同步抽运皮秒光参量振荡器[J]. 中国激光, 2011, 38(12): 1202003. Liu Tong, Wang Xiaobo, Liu Lei, Li Xiao, Hou Jing. Mid-Infrared Synchronously Pumped Picosecond Optical Parametric Oscillator Based on PPMgLN Crystal[J]. Chinese Journal of Lasers, 2011, 38(12): 1202003.

本文已被 3 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!