Hologram system having hologram layers with rotationally offset

Details Hologram system having hologram layers with rotationally offset Hologram system having hologram layers with rotationally offset

1995-10-20

1997-02-11

Nguyen, Thong

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 24, 359 1, 359566, 359576, 369103, G02B 532, G02B 518, G03H 128, G11B 700

Patent

active

056026579

ABSTRACT:
A hologram system is comprised of two identical volume holograms. Both holograms have Bragg planes oriented perpendicular to the surface of the hologram. The first volume hologram separates a single beam into two orthogonal polarization component beams. The second volume hologram diffracts one of the polarization component beams such that a desired separation angle is achieved between the two beams. This separation angle may be precisely adjusted during manufacture by orienting the Bragg planes of the second volume hologram at a rotational angle with respect to the Bragg planes of the first volume hologram.

REFERENCES:
patent: 3622220 (1971-11-01), Kogelnik et al.
patent: 4497534 (1985-02-01), Sincerbox
patent: 4993789 (1991-02-01), Biles et al.
patent: 5013107 (1991-05-01), Biles
patent: 5071210 (1991-12-01), Arnold et al.
patent: 5103323 (1992-04-01), Magarinos et al.
patent: 5179630 (1993-01-01), Chang et al.
patent: 5212572 (1993-05-01), Krantz et al.
patent: 5272550 (1993-12-01), Dickson et al.
patent: 5331445 (1994-07-01), Dickson et al.
Kawatsuki and Uetsuki, Crossed Grating Beam Splitter for Magnetooptical Pickup Head, Nov. 1990, pp. 2420-2423.
E. Glytsis and T. Gaylord, Rigorous Three-Dimensional Coupled-Wave Diffraction Analysis of Single and Cascaded Anisotropic Gratings, Nov. 1987, pp. 2061-2080.

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