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. 10, 2005
Filed:
Oct. 15, 2002
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);
Integrated Optics Communications Corporation, Sunnyvale, CA (US);
Abstract
The present invention discloses methods and apparatus for constructing optical switch systems, in which any input optical signals can be routed to any output ports. The methods and apparatus provide advantages of configuration flexibility, modular construction, constant signal loss, and minimal numbers of switch units required. The switch systems comprise M×N switch modules. The switch module in turn comprises a two-dimensional waveguide array and a number of waveguide grating-based wavelength selective switches. With the capability of wavelength-selective routing provided by the switch modules, the optical switch systems requires a relatively small amount of switch units to extend into a very-large-scale switch system.