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:
Jan. 10, 2006
Filed:
Jan. 29, 2004
Takeshi Takamori, Tokyo, JP;
Takeshi Takamori, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
At V-shaped groovesandon a substratean optical fiberand lens elementsandeach having a fitting portion with an external diameter substantially equal to the external diameter of the optical fiberare positioned and mounted. A wavelength branching filteris disposed in a concave grooveformed on the substrateand a PDis set at the upper surface of the wavelength branching filterAn LDand the optical fiberare optically coupled via the lens elementsandLight with wavelength lambdaemitted from the LDis transmitted through the wavelength branching filterand enters the optical fiberLight with wavelength lambdaemitted from the optical fiberis deflected at the wavelength branching filterand enters the PD
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