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非线性光学材料的研究及表征方法 被引量:3
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作者 谭晓琳 陈根祥 宋秋艳 《光通信技术》 CSCD 北大核心 2014年第6期56-59,共4页
概述了非线性光学材料的光学效应,然后根据化学性质的不同,将非线性光学材料分类为无机、有机(有机低分子、有机高分子、金属有机)和无机/有机复合非线性光学材料。针对不同的材料进行简单综述,最后介绍了两种常用表征光学材料非线性性... 概述了非线性光学材料的光学效应,然后根据化学性质的不同,将非线性光学材料分类为无机、有机(有机低分子、有机高分子、金属有机)和无机/有机复合非线性光学材料。针对不同的材料进行简单综述,最后介绍了两种常用表征光学材料非线性性能的方法。 展开更多
关键词 非线性光学材料 非线性光学效应 Z扫描 简并四波混频
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New approach for estimating PMD-induced power degradation in millimeter-wave generation systems
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作者 Gao Song Pei Li +2 位作者 Ning Tigang Li Jing Qi Chunhui 《红外与激光工程》 EI CSCD 北大核心 2012年第5期1277-1281,共5页
A new approach was put torward for estimating the polarization mode dispersion(PMD)induced power degradation to do a performance analysis of millimeter-wave(mm-wave)generation systems based on optical self-heterodyne ... A new approach was put torward for estimating the polarization mode dispersion(PMD)induced power degradation to do a performance analysis of millimeter-wave(mm-wave)generation systems based on optical self-heterodyne technique.Unlike those established ones,this new approach was proposed from another perspective.Considering the optical cartier which is distributed over optical fiber as a stochastic process.The autocorrelation function of the stochastic process was calculated,and then the power degradation could be estimated with Parseval's theorem.This approach to estimate PMD-induced power degradation in normal signal mode fiber(SMF)was used.The results of the approach are well approximates to those established ones,which proves that the theoretical approach is correct.At last,schematics of the power degradation of a 60 GHz signal due to PMD with three different fiber lengths were given to provide intuitive assistance for readers. 展开更多
关键词 millimeter-wave generation power degradation polarization mode dispersion autocorrelation function
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