Abstract

Beamsplitter is one kind of optical element which can change one light beam into two or more light beams. It has been widely used in optical technique. In this article we have introduced many kinds of beamsplitters made by using birefringent crystal. If the beamsplitter can change one light beam into two light beams, according to the two light beams property, the beamsplitter can be divided into two kinds: first kind, the two light beams both are polarized light; second kind, the two light beams both are nonpolarization light. The angle between two light beams out of the beamsplitter can be designed to be zero or not. According to two parallel light beams, the displacement between them can be fixed or adjusted. According to two nonparallel light beams, the angle between them can be fixed or adjusted also. Their structure character and working principle are discussed in detail in this article.© (1995) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

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