Method and apparatus for electro-optical and all-optical...

Details Method and apparatus for electro-optical and all-optical... Method and apparatus for electro-optical and all-optical...

2005-03-29

2010-11-09

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Optical modulator

Having particular chemical composition or structure

C359S318000, C359S324000

Reexamination Certificate

active

07830594

ABSTRACT:
An apparatus for all-optical deflection of an incident optical signal beam, the apparatus comprising: a photorefractive semiconductor crystal; and an electric field source, for applying an electric field across the crystal either through electrodes or by positioning the crystal at a place where an electric field is present. In another embodiment of the invention a second optical beam source, for illuminating the crystal with a background optical beam. The apparatus is used for steering the signal beam, lensing it or for other applications.

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patent: 6512385 (2003-01-01), Pfaff et al.
Kaplan, “Bending of Trajectories of Asymetrical Light Beams in Nonlinear Media”, Institute of Radio Engineering and Electronics, USSR Academy of Sciences, ZhETF Pis. Red. 9, 58-62, Jan. 5, 1969, pp. 33-36.
Friedrich et al., “Dynamic, Electronically Controlled Angle Steering of Spatial Solitons in AIGaAs Slab Waveguides”, Optics Letters, vol. 23, No. 18, Sep. 15, 1996, pp. 1438-1440.
Yeriv, “Optical Electronics in Modern Communications”, 5th Ed. (Oxford University Press, New York, 1997), pp. 353-356.
Shwartz et al., “Self-deflection and all-optical beam steering in CdZnTe”, Optics Letters, vol. 29, No. 7, Apr. 1, 2004, pp. 760-762.

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