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. 03, 2009
Filed:
Feb. 15, 2005
Yoshihisa Warashina, Hamamatsu, JP;
Yasuji Hoshino, Hamamatsu, JP;
Hajime Takeyama, Hamamatsu, JP;
Masaaki Muto, Hamamatsu, JP;
Yoshihisa Warashina, Hamamatsu, JP;
Yasuji Hoshino, Hamamatsu, JP;
Hajime Takeyama, Hamamatsu, JP;
Masaaki Muto, Hamamatsu, JP;
Hammatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
An optical transmitting and receiving module, with which there is no need to provide a submount for disposing a photodiode on a substrate and with which spatial restrictions can be made small, is provided. An optical transmitting and receiving modulehas a light transmitting substrate. A filter grooveis formed on a top surface of light transmitting substrate, and a dielectric multilayer film filteris set in filter groove. An optical fiberand a laser diodeare disposed at opposite positions across dielectric multilayer film filter. Also, a photodiodeis disposed on a rear surface side of light transmitting substrate. Photodiodeis positioned directly below a line connecting optical fiberand laser diode