Diffraction in chirped volume Bragg gratings  

作　　者：封建胜 张翔 吴登生 吴尚 袁孝 

机构地区：[1]College of Physics, Optoelectronics and Energy g~ Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China [2]Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & KeyLab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China [3]Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

出　　处：《Chinese Optics Letters》2015年第13期19-22,共4页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China （NSFC; Nos. 91023009 and 61275140）, the United Foundation of NSFC and the Chinese Academy of Engineering Physics （Nos. 11176021 and 11076021）, the Natural Science Foundation of Jiangsu Higher Education Institutions （No. 10KJA140045）, a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, the National 863 Program of China. and the Graduate Research and Innovation Project of Jiangsu Province （Nos. CXZZ12_0813 and CXZZ13_0808）.

摘　　要：We use fundamental matrix （F-matrix） method derived from coupled wave theory to simplify the diffraction simulation of chirped volume Bragg grating （CVBG） and it can be applied to arbitrary grating phase profiles. With the F-matrix method, we study the diffraction in CVBG. The spectral response of CVBG is a gate-like function, and the passband width of spectral response is related to the product of grating thickness and spatial chirp rate. The peak diffraction efficiency of CVBG increases monotonously as the amplitude of refractive index modulation increases. Incident beams with different wavelengths will be mainly diffracted at different depths of CVBG to match the Bragg condition.We use fundamental matrix （F-matrix） method derived from coupled wave theory to simplify the diffraction simulation of chirped volume Bragg grating （CVBG） and it can be applied to arbitrary grating phase profiles. With the F-matrix method, we study the diffraction in CVBG. The spectral response of CVBG is a gate-like function, and the passband width of spectral response is related to the product of grating thickness and spatial chirp rate. The peak diffraction efficiency of CVBG increases monotonously as the amplitude of refractive index modulation increases. Incident beams with different wavelengths will be mainly diffracted at different depths of CVBG to match the Bragg condition.

分 类 号：TN253[电子电信—物理电子学] O436.1[机械工程—光学工程]