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:
Feb. 23, 1999
Filed:
Dec. 30, 1997
Amaresh Mahapatra, Acton, MA (US);
S Anantha Narayanan, Lowell, MA (US);
Ramar Corporation, Northboro, MA (US);
Abstract
A method for diffusing titanium into a single-crystal lithium niobate substrate and guided wave devices produced therefrom provide improved mode match with coupled fibers. Preferably, the titanium diffusion occurs at a diffusion temperature for a time between about 8 hours and about 18 hours. Outdiffusion of lithium oxide is allowed to occur during titanium diffusion. The outdiffused region, typically at least about 25 .mu.m, is much deeper than the titanium diffusion depth, typically about 5-10 .mu.m.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile