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.:

US 7123798 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 17, 2006

Filed:

Mar. 25, 2003
Applicants:

Masashi Fukuyama, Inuyama, JP;

Akiyoshi Ide, Kasugai, JP;

Inventors:

Masashi Fukuyama, Inuyama, JP;

Akiyoshi Ide, Kasugai, JP;

Assignee:

NGK Insulators, Ltd., Nagoya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical fiber, which is provided in each of channels of an optical fiber array disposed on V-grooves, has a portion (reflecting section) at which a core is cut out at an intermediate position of the optical fiber. The reflected light, which is split from a signal light transmitted in the core of the optical fiber on the basis of a refractive index difference at the reflecting section, is obtained through a index matching layer provided outside a clad of the optical fiber. The reflected light is monitored by a photodetector of a photodetecting array.


Find Patent Forward Citations

Fukuyama, Masashi. (2006). Optical device and method of producing the same (U.S. Patent No. 7123798). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7123798

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