With the development of modern optics, especially from 1960s -the first laser appeared, prism-type polarizer becomes an important polarizer in laser polarization technology.

In this paper, the design of crystal mini polarizing prism used in an optical isolator along with its material selection and process methods was introduced.

A new symmetric beam-splitting polarization prism;

Phenomena of frustrated total internal reflection in polarizing prism;

The design and performance analysis of modular structural reflected polarizing prism of equal splitting angle;

The effect of temperature on the polarizing prisms;

Analysis of the effects of incident angle on light transmission of polarizing prisms;