论文部分内容阅读
本文基于多物理场数值仿真平台COMSOL的RF射频模块,通过有限元法求解电磁场频域分析方程,求解了高斯激光在双折射晶体中的传输问题,重点分析了波长,温度和外加电场强度对o光e光离散角和e光波形的影响。研究结果表明温度升高使得离散角变小,接收屏上e光波形向左偏移,而Z方向外加电场强度正向增大则会使o光e光离散角增大,接收屏上e光波形向右偏移。上述研究结果验证了通过改变外加电场来调节温度影响的可行性,为设计一种消除温度效应的光信号调制装置提供了理论依据和基础。
Based on multi-physics numerical simulation platform COMSOL’s RF module, the finite element method is used to solve the electromagnetic field frequency domain analysis equation, and the transmission problem of Gaussian laser in birefringent crystal is solved. The effects of wavelength, temperature and applied electric field intensity on o Light e light angle of dispersion and e light waveform. The results show that the temperature increases so that the discrete angle becomes smaller, the receiving screen e light waveform to the left offset, while the Z direction plus the electric field strength increases will make o light e light discrete angle increases, the screen e light The waveform is offset to the right. The above results verify the feasibility of adjusting the influence of temperature by changing the applied electric field, which provides a theoretical basis and a basis for designing an optical signal modulation device that eliminates temperature effects.