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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 5015328 B1

PDFFull Text
Date of Patent:
May. 14, 1991

Filed:

Sep. 14, 1989

Method of reducing surface damage in ktp optical waveguides

Applicant:
Inventors:

Brian J Fitzpatrick, Ossining, NY (US);

Phyllis M Harnack, Hastings on Hudson, NY (US);

Assignee:

North American Philips Corporation, New York, NY (US);

Attorney:

Spain; Norman N.

Primary Examiner:

Gary P Straub

Assistant Examiner:

R Bruce Breneman

Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
156624 ; 156D / ; 156D / ; 156D / ; 156625 ; 156628 ; 350 9612 ; 350 9615 ; 350 963 ; 134 2216 ; 134 26 ; 437225 ;
Abstract

A method for producing an optical waveguide which comprises imersing a wafer of K.sub.1-x Rb.sub.x TiOMO.sub.4, wherein 0.ltoreq.x.ltoreq.1, and M is P or As, for 1-64 hours in molten potassium nitride at 400.degree.-500.degree. C., followed by washing and immersing in a molten salt of Rb, Cs, or Tl at 240.degree.-335.degree. C., thereby causing the Rb, Cs, or Tl to replace the K or Rb cations. The resultant product has reduced mechanical damage to the waveguide surface.

Find Patent Forward Citations

Fitzpatrick, Brian. (1991). Method of reducing surface damage in ktp optical waveguides (U.S. Patent No. 5015328). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5015328

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

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