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. 24, 2003
Filed:
Oct. 09, 2001
David S. Franzen, Painted Post, NY (US);
Walter L. Morgan, Painted Post, NY (US);
Jackson P. Trentelman, Lawrenceville, PA (US);
Corning Incorporated, Corning, NY (US);
Abstract
An improved temperature-compensated optical grating device includes a temperature-compensating structure including a plurality of members that are selected and arranged to provide an effective coefficient of thermal expansion that is negative with respect to two mounting points for an optical fiber grating, wherein the improvement is achieved by making at least one of the members of the temperature-compensating structure from a material having a low coefficient of thermal expansion that decreases with increasing temperature and at least one other member having a high coefficient of thermal expansion that increases with increasing temperature.