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:
Dec. 06, 2005
Filed:
Jan. 15, 2004
Jianjun Zhang, Cupertino, CA (US);
Peiching Ling, San Jose, CA (US);
Jinliang Chen, Saratoga, CA (US);
Ming Xu, San Jose, CA (US);
Jianjun Zhang, Cupertino, CA (US);
Peiching Ling, San Jose, CA (US);
Jinliang Chen, Saratoga, CA (US);
Ming Xu, San Jose, CA (US);
International Optics Communications Corporation, Sunnyvale, CA (US);
Abstract
A wavelength selective switch. The switch comprises an input waveguide for carrying an optical signal having a wavelength λ. Also included is an output waveguide having a Bragg grating adapted for coupling the wavelength λinto the output waveguide in a coupling zone. Finally, provided is a heater element that can selectively provide thermal energy to the coupling zone such that the Bragg grating does not couple the wavelength λ.