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. 01, 2005
Filed:
May. 24, 2004
Ed Wooten, Windsor, CT (US);
Karl Kissa, West Simsbury, CT (US);
Gregory J. Mcbrien, Glastonbury, CT (US);
Timothy C. Munks, North Granby, CT (US);
Andrew Finch, Avon, CT (US);
Ed Wooten, Windsor, CT (US);
Karl Kissa, West Simsbury, CT (US);
Gregory J. McBrien, Glastonbury, CT (US);
Timothy C. Munks, North Granby, CT (US);
Andrew Finch, Avon, CT (US);
JDS Uniphase Corporation, San Jose, CA (US);
Abstract
An optical digital external modulator having a cascaded arrangement of interferometers is provided. The optical modulator includes an electrode structure for applying an electric field to each interferometer in the cascade and biasing circuitry coupled to the electrode structure for biasing each interferometer at a predetermined bias point. In particular, each predetermined bias point is selected to be above quadrature and for providing improved transmission performance of digital data signals. Preferably, the modulator has a reflective design that helps to increase the modulation bandwidth, lower the drive voltage, and reduce size.