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:
Jan. 28, 2014
Filed:
Jun. 28, 2004
Roger Jonathan Helkey, Montecito, CA (US);
John Edward Bowers, Santa Barbara, CA (US);
Xuezhe Zheng, Santa Barbara, CA (US);
David Welsh, Goleta, CA (US);
Robert Anderson, Oxnard, CA (US);
Olivier Jerphagnon, Santa Ynez, CA (US);
Roger Jonathan Helkey, Montecito, CA (US);
John Edward Bowers, Santa Barbara, CA (US);
Xuezhe Zheng, Santa Barbara, CA (US);
David Welsh, Goleta, CA (US);
Robert Anderson, Oxnard, CA (US);
Olivier Jerphagnon, Santa Ynez, CA (US);
Calient Technologies, Inc., Goleta, CA (US);
Abstract
A wavelength-selective optical switch for switching arbitrary wavelengths between optical fibers in mesh networks, using interference filters for separating optical wavelengths, and two-dimensional arrays of micromirrors for switching. Broadband switch inputs and outputs are provided for adding and dropping arbitrary wavelengths at each node of the network. A two-stage multiplexer and two-stage demultiplexer are provided to simplify the free-space demultiplexer and multiplexer. Mechanisms are provided that allows full non-blocking functionality in the presence of finite yield of the micromirror arrays.