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.:

US 8326109 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 04, 2012

Filed:

Dec. 16, 2009
Applicants:

Mark P. Earnshaw, Morristown, NJ (US);

Mahmoud S. Rasras, Berkeley Heights, NJ (US);

Inventors:

Mark P. Earnshaw, Morristown, NJ (US);

Mahmoud S. Rasras, Berkeley Heights, NJ (US);

Assignee:

Alcatel Lucent, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Variable optical attenuator (VOA) formed by disposing upon a substrate a waveguide, a p-type region and an n-type region about the waveguide, and an epi-silicon region disposed upon the waveguide, the VOA responsive to a bias current to controllably inject carriers into the waveguide to attenuate thereby optical signal propagating through the waveguide.


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Earnshaw, Mark. (2012). Low-cost fast variable optical attenuator for optical wavelength tracking (U.S. Patent No. 8326109). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8326109

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