Multilayer thin-film broad-band polarizing beam-splitter

Details Multilayer thin-film broad-band polarizing beam-splitter Multilayer thin-film broad-band polarizing beam-splitter

1997-04-28

1999-10-26

Shafer, Ricky D.

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

359497, 359498, G02B 530

Patent

active

059738359

ABSTRACT:
A multilayer thin-film broad-band polarizing beam-splitter which can split an unpolarized beam into two orthogonal linearly polarized beams with high extinction ratios is provided. The fabrication method comprises: (1) selecting a right-angle prism, having an isosceles triangular cutoff plane; (2) depositing broad-band polarized multilayer thin-film on an internal slope of the right-angle prism; (3) cementing and UV-curing a coated right-angle prism with an uncoated right-angle prism to form a cube-shaped polarizing beam-splitter; (4) properly determining the orientation of the polarization plane of the cube-shaped polarizing beam-splitter; (5) identifying the multi-stage assembly designs that are responsible for beam being incident and emerging; (6) adding anti-reflecting coatings to the relevant faces of the cube-shaped polarizing beam-splitters; and (7) cementing and UV-curing these cube-shaped polarizing beam-splitters.

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