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:
Jun. 27, 1989
Filed:
Apr. 03, 1987
Mahmoud El-Sherif, Ardmore, PA (US);
Other;
Abstract
A method for imparting a diffraction grating into the cladding layer and core layer of small diameter optical fibers consisting of (a) etching a section of an optical fiber to reduce the thickness of the cladding layer of the optical fiber, (b) coating the etched portion of the fiber with a photoresist, exposing the photoresist to produce the diffraction grating pattern using on-axis interferometry using a laser source (d) dissolving the non-exposed photoresist and (e) etching the diffraction grating pattern into the cladding layer and/or core of the optical fiber.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile