Efficiency-enhanced picosecond mid-infrared optical parametric downconversion based on a cascaded optical superlattice  

作　　者：李世凤 居盼盼 刘艳花 蒋旭东 倪睿 赵刚 吕新杰 祝世宁 

机构地区：[1]National Laboratory of Solid State Microstructures,Nanjing University [2]College of Physics,Optoelectronics and Energy & Collaborative Innovation Center of Suzhou Nano Science and Technology,Soochow University

出　　处：《Chinese Optics Letters》2016年第4期39-41,共3页中国光学快报（英文版）

基　　金：supported by the International Science and Technology Cooperation Program of China(ISTCP) (No.2014DFT50230);the National Key Scientific Instrument and Equipment Development Project (No.2011YQ030127);the National Natural Science Foundation of China(No.61405133)

摘　　要：We demonstrate an efficiency-enhanced picosecond （ps） mid-infrared radiation via optical parametric downconversion. Based on a cascaded periodically poled MgO-doped stoiehiometric lithium tantalate crystal （MgO：sPPLT）, a tandem optical parametric oscillation-optical parametric amplification （OPO-OPA） process is achieved. Compared with a single OPO process, the conversion efficiency obtains an enhancement of 71%.We demonstrate an efficiency-enhanced picosecond （ps） mid-infrared radiation via optical parametric downconversion. Based on a cascaded periodically poled MgO-doped stoiehiometric lithium tantalate crystal （MgO：sPPLT）, a tandem optical parametric oscillation-optical parametric amplification （OPO-OPA） process is achieved. Compared with a single OPO process, the conversion efficiency obtains an enhancement of 71%.

关 键 词：EFFICIENCY Infrared devices Infrared radiation Lithium compounds Optical frequency conversion 

分 类 号：O734[理学—晶体学]