Access Optical Networks, Inc.

Spectros Corporation

Equinox Corporation

Marvin Hutt

Glenn A Gladney

David A Benaron

Lawrence B Wolff

Ilian H Parachikov

Michael R Fierro

Milton Soto

A method and device for re-writing data on a holographic storage device is disclosed. First and second electro-optic modulators may phase shift the reference and data beams used to store data on the photorefractive crystal. When the reference beam is shifted 180&#xb0; out of phase with respect to the data beam, the photorefractive crystal is erased.

Method and system for re-writing with a holographic storage medium

A method and system for bulk erasing in a holographic storage system is disclosed. The method may involve illuminating the entire volume storage region of a photorefractive crystal with a laser to achieve bulk erasure, or may involve selective erasure of a portion of a single written page. For bulk erasure of the entire photorefractive crystal the use of a separate laser or an incoherent light source is used.

Method and apparatus for bulk erasure in a holographic storage system

An improved hybrid connector for rapidly, reliably, and reversibly making mixed optical and electrical connections has a plug () with one or more centrally located fiber-containing optical ferrules () and one or more peripheral electrical contacts (), and second, a socket () with interior electrical contacts () and a fiber-bearing central floating optical connector (). Insertion and rotation of a shaft () of the plug into a bore () of the socket connects the respective electrical contacts of the shaft and socket, and nearly-simultaneously couples the respective optical fibers of the plug ferrule and socket connector, thus creating a rapid, reversible, and low-cost hybrid connection optimized for both the electrical and optical requirements of a mixed optical and electrical connection.

Optical and electrical hybrid connector

A sensor fusion system simultaneously acquires at least two images in a subspectrum of the visible/NIR/SWIR (0.4-2.0 micron) reflective spectrum and in a subspectrum of the thermal infrared (3.0-15 micron) spectral regions using respective sensing arrays viewing a common aperture. Although sensed by separate focal plane arrays, radiation enters at the front-end of a commonly shared focusing optical system so that all sensed radiation originates along exactly the same optical path and then is directed to each sensing plane. This provides precise co-registration of reflective and thermal infrared imagery regardless of the depth-of-field range of the scene being imaged, and enables the precise integration of image fusion processing and algorithms to fully exploit the complementary properties of reflected and thermally emitted radiation from a scene.

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Oakland, NJ, United States of America

Marvin Hutt