Optical deflector

Details Optical deflector Optical deflector

2008-06-19

2010-11-23

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave directional modulation

Reexamination Certificate

active

07839565

ABSTRACT:
An optical deflector made of an electro-optic material has one or more pairs of electrodes on opposite surfaces. Each pair of electrodes defines an interaction region in which an electric field applied from the electrodes produces a linear refractive-index gradient in the direction of the electric field. An incident light beam is refracted in this direction within the interaction region. The interaction region is shaped so that the light beam is also refracted in an orthogonal direction when it enters or leaves the interaction region. The light beam is thereby deflected three-dimensionally.

REFERENCES:
patent: 3804488 (1974-04-01), Eden
patent: 6449084 (2002-09-01), Guo
patent: 6947625 (2005-09-01), Nishizawa et al.
Nakamura et al., “Wide-angle, low-voltage electro-optic beam deflection based on space-charge-controlled mode of electrical conduction in KTa1-xNbxO3,” Applied Physics Letters 89, 13115 (2006).

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