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. 05, 2009
Filed:
Jan. 09, 2008
Karl Kissa, West Simsbury, CT (US);
William J. Minford, Windsor, CT (US);
Jason Jiazhan Xu, Weatogue, CT (US);
Glen Drake, Windsor, CT (US);
Karl Kissa, West Simsbury, CT (US);
William J. Minford, Windsor, CT (US);
Jason Jiazhan Xu, Weatogue, CT (US);
Glen Drake, Windsor, CT (US);
JDS Uniphase Corporation, Milpitas, CA (US);
Abstract
The invention relates to an electro-optic modulator structure containing an additional set of bias electrodes buried within the device for applying bias to set the operating point. Thus the RF electrodes used to modulate incoming optical signals can be operated with zero DC bias, reducing electrode corrosion by electro-migration and other effects that can be present in non-hermetic packages. The bias electrodes include an upper split portion and an optically transparent lower portion. The optically transparent lower layer improves modulation frequency and reduces optical loss.