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.:
Date of Patent:
Nov. 27, 1990
Filed:
Aug. 25, 1989
Applicant:
Inventor:
Richard J Normandin, Ottawa, CA;
Assignee:
National Research Council of Canada, Ottawa, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9617 ; 350 9615 ; 350 9612 ;
Abstract
All optical self limiters in a geometry suitable for use in a fiber optics context are disclosed. Edge coupled light to a silicon thin layer on a doped silicon substrate lowers the refractive index of the layer and eventually brings it to the waveguide cut off condition. In a further embodiment, by varying the amount of light incident on the nonlinear substrate and the nonlinear channel, a fully adjustable limiting action is obtained.
Normandin, Richard. (1990). All optical self limiter for fiber optics (U.S. Patent No. 4973125). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4973125
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile