Low-polarization adjustable beamsplitting angle prism

Fuyun Xu

doi:10.1117/12.130745

10 December 1992 Low-polarization adjustable beamsplitting angle prism

Fuyun Xu

Proceedings Volume 1752, Current Developments in Optical Design and Optical Engineering II; (1992) https://doi.org/10.1117/12.130745
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Low polarization beamsplitter has been reported by article and patent in Applied Optics in 1983. Which structure is a quartz birefringent plate, it can be used to splite beam by using the reflection and refraction of the surface of the birefringent plate. In this article I have introduced a polychromatic adjustable beamsplitting angle low polarization prism, which is composed of four elements. I have studied it by theoretical analysis and experiment measurement. Whose character is: (1) the beamsplitting angle can be adjustable continuously, (2) transmission is high, (3) the intensities of the two beams are about equal, and, (4) the adjusting is convenient and reliable. Such as a 37 degree(s) prism, the beam splitting angle is from 15 degree(s) to 45 degree(s), transmission is above 85%, the maximum polarization degree of the emergent light is below 10%. The range of the beamsplitting angle can be designed in need.

Citation Download Citation

Fuyun Xu "Low-polarization adjustable beamsplitting angle prism", Proc. SPIE 1752, Current Developments in Optical Design and Optical Engineering II, (10 December 1992); https://doi.org/10.1117/12.130745

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KEYWORDS

Prisms

Polarization

Beam splitters

Calcite

Patents

Quartz

Reflection

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