Photoinduced birefringence and holographic recording were performed by using ar laser ( 488 nm ) as writing beam and he - ne laser ( 632 . 8 nm ) as reading beam 写入光为线偏振壮离于激光，读出光为线偏振he ne激光，信号山ccd多道分析器接收。
The group birefringence and the phase birefringence of the two fibers are demonstrated and the numerical results are in agreement with the reported experimental results 比较了两种高双折射微结构光纤的相双折射和群双折射的特性并进行解释。
The best spherical windows parameters are chosen according to rms of phase . stress - birefringence of laser windows is deduced by using index ellipsoid 分析了温升和内外压强差作用下平板、球壳窗口的附加相移，用光率体椭球法推导应力双折射。
( 2 ) the tenability is determined by the birefringence of the liquid crystal , a large birefringence change can be obtained by a small voltage change 2 、其调谐性能决定于所用液晶材料的双折射率，通常较小的电压( 0 . 8 - 4v )就足以产生较大的双折射率变化。
On the basis of analyzing theoretically the high birefringence fiber loop mirror , temperature characteristics are studied and transduction is realized . utilizing its 3 、在对高双折射光纤环镜进行理论分析的基础上,研究了其温度特性,实现了对温度的传感。
The students are trained for the ability to using the optical instruments in the measurement of material dispersion , birefringence , position variation , velocity , etc 光电工程必3培养学生使用光学仪器于材料之吸收色散,双折射,物体之位移,速度等物理量之量测
The results show that when the linear birefringence is small , the linear birefringence of the bulk glass can be effectively measured by the methods reported in this paper 研究发现：在线性双折射较小的情况下，通过论文中提出的方法，可较好的测量出块状光学玻璃线性双折射的大小。
