Optical switch using spatial light modulators

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United States of America Patent

PATENT NO 5155778
SERIAL NO

07723105

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Abstract

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A structure for optical interconnection is disclosed along with methods of manufacture and operation. In one embodiment, the structure consists of optical fibers connected to an array of microlenses, either through integrated waveguides or not, that direct light onto a mirror formed in a substrate, which reflects light to a spatial light modulator. The spatial light modulator in turn reflects the light back to another mirror, which reflects the light through another microlens array, through integrated waveguides or not, and out another optical fiber. The structure is manufactured by forming the mirrors out of the substrate, forming waveguides if desired, forming troughs for the fibers and the microlenses, attaching external pieces such as the fibers, the lenses, and the spatial light modulator package, and packaging the device to maintain alignment.

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Patent Owner(s)

Patent OwnerAddress
TEXAS INSTRUMENTS INCORPORATED12500 TI BOULEVARD MS 3999 DALLAS TX 75243

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Magel, Gregory A Dallas, TX 31 1350
McDonald, T Gus Plano, TX 4 221

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