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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6792167 B1

PDFFull Text
Expired
Date of Patent:
Sep. 14, 2004

Filed:

Aug. 23, 2002

Optical switch

Applicant:
Inventors:

Mitsutoshi Honda, Hitachi, JP;

Takashi Naito, Mito, JP;

Tatsuya Sugita, Takahagi, JP;

Masahiko Ando, Kokubunji, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Edward J Glick

Assistant Examiner:

Thomas R Artman

Int. Cl.
CPC ...
G02F 1/295 ; G02B 6/26 ; G02B 6/42 ; G02B 6/00 ;
U.S. Cl.
CPC ...
G02F 1/295 ; G02B 6/26 ; G02B 6/42 ; G02B 6/00 ;
Abstract

An optical switch includes at least one light-receiving core for receiving an optical signal, a plurality of light-emitting cores which are used selectively for emitting the optical signal, and a plurality of waveguides connecting the light-receiving core and the plurality of light-emitting cores. A nonlinear optical element which, when pumped, changes its refractive index by 2% or above relative to the surroundings to control a traveling direction of the optical signal is disposed near at least one of the plurality of waveguides.

Find Patent Forward Citations

Honda, Mitsutoshi. (2004). Optical switch (U.S. Patent No. 6792167). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6792167

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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