Polarized beam splitter.

摘要

A polarized beam splitter is provided for transmitting a beam of linearly polarized light vibrating in a predetermined plane. A titanium diffused layer is developed on the lithium niobate substrate and then, a portion of the same is treated by proton exchange thus forming a proton exchanged region. The boundary surface between the titanium diffused and proton exchanged regions is used as a polarizing plane allowing an incoming polarized light vibrating in the predetermined plane to pass through and a polarized light vibrating at a right angle to the plane to reflect. <IMAGE>