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:
Sep. 21, 2004
Filed:
Oct. 08, 2002
Applicant:
Inventors:
Guang-Hua Duan, Chatenay Malabry, FR;
Hakon Helmers, Sceaux, FR;
Arnaud Leroy, Paris, FR;
Joël Jacquet, Limours, FR;
Assignee:
Avanex Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 ;
U.S. Cl.
CPC ...
G02B 6/26 ;
Abstract
An optical resonant cavity ( ) defined between two mirrors ( ), one of which ( ) is a variable pitch Bragg reflector grating, is characterized in that a parameter C of variation of the Bragg wavelength of the grating is such that the cavity resonates continuously from a first optical frequency to a second optical frequency higher than the first optical frequency. The invention can be used in particular to produce broadband band-pass filters with steep flanks, broadband amplifiers with no gain fluctuation, and continuous emission spectrum lasers and light-emitting diodes.