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 8711359 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 29, 2014

Filed:

Oct. 05, 2010
Applicant:

Nobuhiro Fukushima, Kawasaki, JP;

Inventor:

Nobuhiro Fukushima, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 9/02 (2006.01); H04B 10/00 (2013.01);
U.S. Cl.
CPC ...
Abstract

A delay interferometer includes first and second optical paths into which incident signal light is split, a first converter including one or more conversion parts to convert the signal light on the first optical path into circularly polarized light and to convert the circularly polarized light into linearly polarized signal light, a phase adjuster to shift an optical phase of the circularly polarized light through a magneto-optic effect, and a second converter to convert a polarization state of the signal light on the second optical path into substantially the same polarization state as a polarization state of the linearly polarized signal light.


Find Patent Forward Citations

Fukushima, Nobuhiro. (2014). Delay interferometer using magneto-optic effect of a variable faraday rotator (U.S. Patent No. 8711359). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8711359

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