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:
May. 17, 2005
Filed:
Aug. 20, 2001
Applicants:
Léon Goldstein, Chaville, FR;
Jean-yves Emery, Palaiseau, FR;
Frédéric Pommereau, Lardy, FR;
Inventors:
Assignee:
Avanex Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S003/00 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a semiconductor optical amplifier including a buried guide active structure (), characterized in that the guide active structure () is subjected to an external stress to render the gain of said amplifier insensitive to the polarization of the light to be amplified, said external stress coming from a force induced by a deposit of a material () against a ridge () surrounding said guide active structure ().