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.

Date of Patent:
Jun. 26, 2018

Filed:

Mar. 27, 2017
Applicant:

Furukawa Electric Co., Ltd., Tokyo, JP;

Inventors:

Masanori Takahashi, Tokyo, JP;

Junichi Hasegawa, Tokyo, JP;

Takeshi Yagi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/14 (2006.01); G02B 6/42 (2006.01); G02B 6/02 (2006.01); G02B 6/255 (2006.01);
U.S. Cl.
CPC ...
G02B 6/421 (2013.01); G02B 6/02395 (2013.01); G02B 6/14 (2013.01); G02B 6/2551 (2013.01); G02B 6/4216 (2013.01); G02B 6/4243 (2013.01); G02B 6/4249 (2013.01);
Abstract

An optical component includes: a high-relative-refractive-index-difference optical fiber; a single-mode optical fiber fusion-spliced to the high-relative-refractive-index-difference optical fiber, a mode-field diameter of the single-mode optical fiber being greater than a mode-field diameter of the high-relative-refractive-index-difference optical fiber at a wavelength of 1550 nm; and an optical device connected to an end surface of the high-relative-refractive-index-difference optical fiber where the single-mode optical fiber is not fusion-spliced. A total of a connection loss between the high-relative-refractive-index-difference optical fiber and the single-mode optical fiber at the wavelength of 1550 nm and a connection loss between the high-relative-refractive-index-difference optical fiber and the optical device at the wavelength of 1550 nm is less than a connection loss at the wavelength of 1550 nm when the single-mode optical fiber is connected to the optical device directly.


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