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 8335421 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 18, 2012

Filed:

Aug. 21, 2009
Applicant:

Katsunori Imamura, Tokyo, JP;

Inventor:

Katsunori Imamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/032 (2006.01); G02B 6/036 (2006.01); H04B 10/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical transmission system includes an optical transmitting unit that outputs at least one optical signal having a wavelength included in an operation wavelength band and a holey fiber that is connected to the optical transmitting unit. The holey fiber includes a core and a cladding formed around the core. The cladding includes a plurality of holes formed around the core in a triangular lattice shape. The holey fiber transmits the optical signal in a single mode. A bending loss of the holey fiber is equal to or less than 5 dB/m at a wavelength within the operation wavelength band when the holey fiber is wound at a diameter of 20 millimeters.


Find Patent Forward Citations

Imamura, Katsunori. (2012). Optical transmission system and multi-core optical fiber (U.S. Patent No. 8335421). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8335421

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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