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:
Feb. 22, 2005

Filed:

Feb. 12, 2002
Applicants:

Hyun-ki Kim, Suwon-shi, KR;

Moon-koog Song, Suwon-shi, KR;

Jae-wan Kim, Taegu-Kwangyokshi, KR;

Jong-youl Kim, Kumi-shi, KR;

Inventors:

Hyun-Ki Kim, Suwon-shi, KR;

Moon-Koog Song, Suwon-shi, KR;

Jae-Wan Kim, Taegu-Kwangyokshi, KR;

Jong-Youl Kim, Kumi-shi, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B006/30 ;
U.S. Cl.
CPC ...
Abstract

This invention provides an optical fiber block that includes an optical-fiber-alignment portion and a stress-reduction-depth portion. In the optical-fiber-alignment portion, a V groove array is arranged to accommodate the non-coated fiber portion of a ribbon fiber. The V groove array is formed by primary and secondary wet-etching processes on a silicon wafer, and further includes first V grooves at both sides and second V grooves different from the first V grooves disposed between the first V grooves. Meanwhile, the stress-reduction-depth portion is formed by another wet etching, extending to a predetermined depth from the optical-fiber-alignment portion, for reducing stress caused by a variation in the coating thickness of the optical fibers.


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