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. 15, 2007
Filed:
Jul. 29, 2004
Toshiaki Kihara, Yokohama, JP;
Hisao Go, Yokohama, JP;
Eiji Tsumura, Yokohama, JP;
Kiyoshi Kato, Yokohama, JP;
Akihiro Moto, Yokohama, JP;
Toshiaki Kihara, Yokohama, JP;
Hisao Go, Yokohama, JP;
Eiji Tsumura, Yokohama, JP;
Kiyoshi Kato, Yokohama, JP;
Akihiro Moto, Yokohama, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
The present invention provides an optical transmitting module capable of outputting a signal for precisely controlling bias and modulation current, and a transmitting optical sub-assembly using the same. The optical transmitting module of the invention builds a semiconductor laser diodeand a temperature sensor within a CAN type package. The CAN type package includes a base, a block provided on the base and mounting the laser diode on a side thereof, and a plurality of leads secured to the base. The laser diode is supplied current signal Sthrough one of leads, while the temperature sensor outputs a signal Sthrough the other of leads. The temperature sensor is mounted immediately close to the laser diode, accordingly, capable of monitoring the temperature of the laser diode.