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:
Jun. 07, 2005
Filed:
Jul. 08, 2003
John Edward Bowers, Santa Barbara, CA (US);
Shifu Yuan, Santa Barbara, CA (US);
Roger Helkey, Montecito, CA (US);
Xuezhe Zheng, Goleta, CA (US);
James R. Sechrist, Goleta, CA (US);
John Edward Bowers, Santa Barbara, CA (US);
Shifu Yuan, Santa Barbara, CA (US);
Roger Helkey, Montecito, CA (US);
Xuezhe Zheng, Goleta, CA (US);
James R. Sechrist, Goleta, CA (US);
Calient Networks, Inc., San Jose, CA (US);
Abstract
An apparatus and method of controlling optical loss in an optical switch to equalize optical power or loss in a group of optical signals in an optical transmission system relatively insensitive to mechanical vibration. In one embodiment a group of optical signals is input into an optical switch and selected optical signals are variably attenuated using synchronized control to two mirrors in order to provide more uniform power distribution among the group of optical signals without enhancing vibration sensitivity of the optical switch.