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:
Mar. 10, 1992
Filed:
Nov. 28, 1990
Applicant:
Inventors:
Christopher P Yakymyshyn, Saratoga Springs, NY (US);
Eugene P Boden, Scotia, NY (US);
Peter D Phelps, Schenectady, NY (US);
Kevin R Stewart, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385122 ; 359900 ; 385123 ; 385141 ;
Abstract
Optical waveguides comprise as core and cladding materials a chemical compound in two different crystalline forms with different indices of refraction. Preferably, the non-linear form is anhydrous and the linear form is a hydrate thereof, whereupon the core material can be prepared by selective heating of the cladding material as by a laser beam. A preferred compound is 4'-dimethylamino-4-methylstilbazolium p-toluenesulfonate.