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:
Feb. 18, 2014
Filed:
Jun. 09, 2011
Eitaro Ishimura, Tokyo, JP;
Kazuhisa Takagi, Tokyo, JP;
Keisuke Matsumoto, Tokyo, JP;
Takeshi Saito, Tokyo, JP;
Eitaro Ishimura, Tokyo, JP;
Kazuhisa Takagi, Tokyo, JP;
Keisuke Matsumoto, Tokyo, JP;
Takeshi Saito, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An optical modulator includes: a semiconductor chip; a waveguide in the semiconductor chip; a traveling wave electrode including an input portion and an output portion, to which a signal is applied for modulating light passing through the waveguide; a power supply line connected to the input portion via a first wire; and a termination resistor connected to the output portion via a second wire. Capacitance between the output portion and a grounding point is larger than capacitance between the input portion and the grounding point.