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. 05, 2019
Filed:
Aug. 26, 2016
Corning Optical Communications Llc, Hickory, NY (US);
Minghan Chen, Horseheads, NY (US);
Ming-Jun Li, Horseheads, NY (US);
Gaozhu Peng, Horseheads, NY (US);
Corning Optical Communications LLC, Hickory, NC (US);
Abstract
Methods of forming ion-exchanged waveguides in glass substrates are disclosed. In one embodiment, a method of forming a waveguide in an ion-exchanged glass substrate having an ion-exchanged layer extending from a surface to a depth of layer of the ion-exchanged glass substrate includes locally heating at least one band at the surface of the ion-exchanged glass substrate to diffuse ions in the ion-exchanged layer within the at least one band. A concentration of ions within the at least one band is less than a concentration of ions outside of the at least one band, and at least one waveguide is defined within the ion-exchanged layer adjacent the at least one band. In some embodiments, the at least one waveguide is embedded within the ion-exchanged glass substrate such that an upper surface of the at least one waveguide is below the surface of the glass substrate by a depth d.