马赫-曾德干涉仪观测光写入平面光子晶格折射率调制度的实验研究  

Experimental Research of Mach-Zehnder Interferomenter Observation of the Refractive Index Moudulation of Light-induced Planar Photonic Lattices

作　　者：陈宝东[1] 杨立森[1] 温静[2] 武瑞祥[1] 张宝光[1] 崔俊杰[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院,呼和浩特010022 [2]内蒙古化工职业学院继续教育部,呼和浩特010010

出　　处：《信息记录材料》2008年第2期7-12,共6页Information Recording Materials

基　　金：国家自然科学基金(60467002);内蒙古自然科学基金(200408020111)两项资助

摘　　要：研究了用搭建的马赫-曾德干涉仪光路和LBA-PC模式分析仪组成的观测系统,对掺铁铌酸锂晶体光写入平面光子晶格折射率调制度的分布进行观测的方法。利用CCD记录下晶体在平面光子晶格写入前后的像面投影图和全息干涉图,通过模式分析仪再现出其反映平面光子晶格折射率调制度分布的相位图信息,进而测出条纹变化量和条纹间距,从而实现对掺铁铌酸锂晶体光写入平面光子晶格折射率调制度分布的实验观察并测量。The method for observing the refractive index moudulation of light-induced planar photonie lattices by employing build both Mach-Zehnder interferomenter and LBA - PC make up of the observation system is investigated. Image projections and holograms of a photosensitive media before and after the planar photonic lattices in a Mach-Zehnder interferometer are recorded by a CCD. From these holograms, the phase differences, which contain the information of the refractive index moudulation distributions of the planar photonic lattices region, are determined by utilizing numerical reconstruction. Accordingly, finally realized the refractive index moudulation distribution of a light-induced planar photonic lattices in a LiNbO3 ：Fe crystal is experimentally observed.

关 键 词：马赫-曾德干涉仪 平面光子晶格 折射率调制度 观测系统 

分 类 号：O439[机械工程—光学工程]