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:
Jul. 08, 2008
Filed:
Mar. 04, 2005
Hindrick Freerk Bulthuis, Edinburgh, GB;
Tony C. Kowalczyk, Palo Alto, CA (US);
Michael G. Jubber, Longridge, GB;
Hindrick Freerk Bulthuis, Edinburgh, GB;
Tony C. Kowalczyk, Palo Alto, CA (US);
Michael G. Jubber, Longridge, GB;
Gemfire Corporation, Fremont, CA (US);
Abstract
Optical apparatus with improved center wavelength temperature stability. In an embodiment, an AWG has a plurality of slots inserted along the optical paths. The slots contain one or more compensation materials which collectively correct for an order Q temperature dependency of the AWG base material. Q>=2 or the number of compensation materials is at least 2 or both.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile