Design of an Ultrafast Frequency Doubling Photonic Device  

作　　者：黄金哲 苏林 浦绍质 孙上傲 张留洋 

机构地区：[1]Department of Optoelectronic Information Science and Engineering,Harbin University of Science and Technology

出　　处：《Chinese Physics Letters》2016年第10期67-70,共4页中国物理快报（英文版）

基　　金：Supported by the Natural Science Foundation of Heilongjiang Province under Grant Nos F201312,F2016023 and QC2015086;the National Natural Science Foundation of China under Grant No 61405049

摘　　要：Ultrashort pulses complicate the frequency conversion in a nonlinear crystal, where group velocity mismatch becomes the main obstacle due to dispersion. We present a design for group velocity compensated second harmonic generation in a modulated nonlinear structure, embedded in a liquid crystal box. In this structure, nonlinear crystals act as sources of signal and liquid crystals compensate for group velocity mismatch originating from nonlinear crystals. There are the advantages of the flexible, controllable birefringence of liquid crystals. Meanwhile, a method calculating the parameters of this type of structure is presented. To make it clear, an example is provided. Furthermore, the structure can also be shaped as a waveguide to support integration into other optical devices, applicable to all-optical processing systems.Ultrashort pulses complicate the frequency conversion in a nonlinear crystal, where group velocity mismatch becomes the main obstacle due to dispersion. We present a design for group velocity compensated second harmonic generation in a modulated nonlinear structure, embedded in a liquid crystal box. In this structure, nonlinear crystals act as sources of signal and liquid crystals compensate for group velocity mismatch originating from nonlinear crystals. There are the advantages of the flexible, controllable birefringence of liquid crystals. Meanwhile, a method calculating the parameters of this type of structure is presented. To make it clear, an example is provided. Furthermore, the structure can also be shaped as a waveguide to support integration into other optical devices, applicable to all-optical processing systems.

关 键 词：of on BE is it Design of an Ultrafast Frequency Doubling Photonic Device in for BBO 

分 类 号：TN929.1[电子电信—通信与信息系统]