晶体电光调制实验装置与光路调整的改进

Improvement of the electro-optical modulation experiment device and the optical path adjustment

对晶体电光调制实验装置进行了改进,通过对光源和电光晶体的方向调整,并利用光路中的2个小孔光阑使入射光和晶体反射光实现准直,从而使入射光方向与晶体光轴方向平行.同时给出了具体的光路调整方法,使光路的调整变得简单准确易调,提高了测量准确性.

The device for crystal electro-optical modulation experiment was technically modified to make the optical path adjustment easily operated. The technique collimated the incident and reflected light beams by adjusting the light source and crystallographic orientation and making use of two small diaphragms in the optical path to confirm that the incident light was along the optical axis. Detailed method was given on how to adjust the optical path. It was found that the measurements with this device were more accurate than that with the original one.