摘要
为了研究磁场传感器中出射光偏振态,用Po incaré球法分析了磁场传感器起偏角对光偏振态的影响。结果表明:Faraday材料中线双折射率的存在,使线偏振光演进为椭圆偏振光。无论外加磁场及Faraday材料线双折射率如何变化,当起偏角为45°时,出射偏振光始终为左旋椭圆偏振光;当起偏角为135°时,出射偏振光始终为右旋椭圆偏振光。其结果对偏振型磁场传感器的信号检测设计有一定的参考价值。
In order to study the polarzation state of output signals,the effect of azimuth on the output light in magnetic field sensor was analyzed.The results show that linear birefringent Faraday material makes output light linear polarizations become elliptically polarized light,that when the azimuth of polarizer is 45°,output light SOP is left elliptically polarized light all the time,and that when the azimuth of polarizer is 135°,output light SOP is right elliptically polarized light all the time whatever magnet...
出处
《解放军理工大学学报（自然科学版）》
EI
北大核心
2009年第1期7-11,共5页
Journal of PLA University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(60472007
60871075)
