Generation of broadly tunable mid-infrared femtose-cond pulses by a LiNbO_3 optical parametric amplifier  

作　　者：YANG Hua QIAN LieJia YUAN Peng LUO Hang ZHU HeYuan 

机构地区：[1]School of Computer and Communication, Hunan University, Changsha 410082, China [2]Department of Optical Science and Engineering, Laboratory for Advanced Materials, Fudan University, Shanghai 200433, China

出　　处：《Chinese Science Bulletin》2009年第20期3623-3626,共4页

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos.60725418 and 60890202)

摘　　要：Combining the configurations of collinear and small-angle noncollinear phase-matching,a mid-infrared(MIR) femtosecond optical parametric amplifier(OPA) with extended tunability is proposed and demonstrated.A tuning range from 2.0 μm to 4.7 μm is demonstrated by a two-stage LiNbO3-based femto-second OPA,which well exceeds the typical tuning range reported so far.MIR femtosecond pulses with energy up to 30 μJ are obtained.Combining the configurations of collinear and small-angle noncollinear phase-matching, a mid-infrared （MIR） femtosecond optical parametric amplifier （OPA） with extended tunability is proposed and demonstrated. A tuning range from 2.0 μm to 4.7 μm is demonstrated by a two-stage LiNbO3-based femtosecond OPA, which well exceeds the typical tuning range reported so far. MIR femtosecond pulses with energy up to 30 μJ are obtained.

关 键 词：光参量放大器 飞秒脉冲 LINBO3晶体 中红外 可调谐 脉冲产生 非共线匹配 调谐范围 

分 类 号：TN722.31[电子电信—电路与系统] TN248.1