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:
Nov. 20, 2001
Filed:
Dec. 01, 1998
Applicant:
Inventor:
Jonathan Paul King, Epping, GB;
Assignee:
Nortel Networks Limited, Saint Laurent, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/035 ; H01S 3/00 ; H04B 1/004 ;
U.S. Cl.
CPC ...
G02F 1/035 ; H01S 3/00 ; H04B 1/004 ;
Abstract
An optical equalizer comprises a plurality of serially concatenated filter elements the phase and modulation depth of which can be individually tuned. The filter elements are tuneable in order to generate a desired optical equalization function. Each of the filter elements is a three arm interferometer and each is fabricated utilizing integrated waveguide technology.