Optical control element

Details Optical control element Optical control element

2005-10-25

2005-10-25

Epps, Georgia (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C385S002000

Reexamination Certificate

active

06958845

ABSTRACT:
An optical control modulator comprises an input to receive light from a light source; a polarization divider to divide the light into two orthogonal plane-polarized light components; a Faraday material which, upon being energized, rotates the plane of polarization of the plane-polarized light as it passes through the material; and an output. The light travels through the Faraday material in opposite directions on a common path. In one embodiment, the light passes once through the Faraday material on a loop path. In another embodiment, the light passes twice through the Faraday material by being reflected by a mirror disposed at a back face of the Faraday material.

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patent: 5923472 (1999-07-01), Bergmann
patent: 6018411 (2000-01-01), Fukushima et al.
patent: 6154581 (2000-11-01), Lu et al.
patent: 6795245 (2004-09-01), Xiao
patent: 0874263 (1998-10-01), None
patent: 1065551 (2001-01-01), None

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