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:
Mar. 14, 2006
Filed:
May. 18, 2005
Osamu Kagaya, Tokyo, JP;
Seiji Sumi, Yokohama, JP;
Hiroyuki Arima, Yokohama, JP;
Opnext Japan, Inc., Kanagawa, JP;
Abstract
An optical module having: a first transmission line and a second transmission line, both connected in series to transmit electrical signals; a laser diode element; an optical modulator element; a termination resistance element for impedance matching; a first bonding wire connecting one end of the first transmission line and the optical modulator element; and a second bonding wire connecting the optical modulator element and the termination resistance element. The resistance value of the termination resistance element is set to stay in a range from 40 to 60 Ω, the characteristic impedance of the second transmission line is set to 50 Ω, and the characteristic impedance of the first transmission line is set to stay in a range from 20 to 30 Ω.