Optical switch using spatial light modulators

Details Optical switch using spatial light modulators Optical switch using spatial light modulators

1991-06-28

1992-10-13

Lee, John D.

Optical waveguides

With optical coupler

Switch

359 42, 359223, 359850, 385 35, G02B 626

Patent

active

051557789

ABSTRACT:
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.

REFERENCES:
patent: 4811210 (1989-03-01), McAulay
patent: 4856863 (1989-08-01), Sampsell et al.
patent: 4859012 (1989-08-01), Cohn
patent: 5071232 (1991-12-01), Kato et al.

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