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. 09, 2006
Filed:
Mar. 07, 2003
Babu Narayanan, San Jose, CA (US);
Yong-qin Chen, San Jose, CA (US);
Robert Ward, St. Charles, IL (US);
Rani Indaheng, San Jose, CA (US);
Humair Raza, Sunnyvale, CA (US);
Babu Narayanan, San Jose, CA (US);
Yong-Qin Chen, San Jose, CA (US);
Robert Ward, St. Charles, IL (US);
Rani Indaheng, San Jose, CA (US);
Humair Raza, Sunnyvale, CA (US);
Nortel Networks, Ltd., St. Laurent, CA;
Abstract
A method for calibrating a preferred disposition for a moveable first mirror of an optical switch core of a photonic crossconnect device relative to a second mirror thereof, the method comprising the steps of determining approximate geometric coordinates of the first mirror relative to the second mirror, effecting a laser light crossconnection between the first and second mirrors to produce data from which to provide first order corrections to refine the geometric coordinates, and effecting a further laser light crossconnection between the first mirror and a third mirror, to produce data from which to provide second order corrections to further refine the geometric coordinates, whereby to calibrate the first mirror such that upon initiation of a laser light crossconnection involving the first mirror, a switching element detects deviation of the first mirror from the preferred disposition thereof and effects corrective changes.