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:
Dec. 13, 2011
Filed:
Jan. 23, 2009
Masahiro Hirai, Yokohama, JP;
Hiroshi Yamamoto, Inagi, JP;
Masahiro Hirai, Yokohama, JP;
Hiroshi Yamamoto, Inagi, JP;
OpNext Japan, Inc., Kanagawa, JP;
Abstract
An optical transmitting module of a coaxial type is provided in which a disturbance in a waveform of light which is output from a semiconductor laser element due to a signal which is output from an optical modulator unit can be suppressed. The optical transmitting module comprises an optical transmitting package of a coaxial type and a line board () connected to the optical transmitting package. The optical transmitting package comprises a semiconductor laser element, an optical modulator unit, and a conductor board (). A drive current supply line () and a common ground line are formed over the line board (), and a signal attenuation circuit () having one end electrically connected to the common ground line and the other end electrically connected to the drive current supply line () is provided over the line board ().