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:
Aug. 30, 2005
Filed:
Jan. 19, 2001
Applicants:
Philippe Chanclou, Lannion, FR;
Monique Thual, Trebeurden, FR;
Michel Gadonna, Lannion, FR;
Arnaud Laurent, Tregastel, FR;
Inventors:
Philippe Chanclou, Lannion, FR;
Monique Thual, Trebeurden, FR;
Michel Gadonna, Lannion, FR;
Arnaud Laurent, Tregastel, FR;
Assignee:
France Telecom, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/34 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus for wavelength switching a laser source. An external cavity () having a Bragg grating () is provided in an optical fiber (). Space division switching is performed in the external cavity between a plurality of optical fibers () each having a different Bragg grating (). A space division switch () is provided in the external cavity for switching between a plurality of optical fibers () each carrying a different Bragg grating ().