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Title:
BEAM PROFILE CONVERTER, CATHETER DEVICE, AND LASER CAUTERIZATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/240064
Kind Code:
A1
Abstract:
The purpose of the present invention is to achieve efficient conversion of a beam profile of a laser beam using a simple configuration. The present invention is provided with: a first optical fiber which outputs guided light from a first end face; and a second optical fiber which is a multi-mode optical fiber for receiving light as an input on a second end face and guiding light, wherein the second optical fiber has a core diameter larger than that of the first optical fiber at the first end face, and the light outputted from the first end face is inputted, in a direction slanted with respect to the second end face, to a core part of the second end face at a position spaced away from an optical axis of the second optical fiber.

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Inventors:
IWAMA, Masaki (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 〒1008322, JP)
Application Number:
JP2019/022883
Publication Date:
December 19, 2019
Filing Date:
June 10, 2019
Export Citation:
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Assignee:
FURUKAWA ELECTRIC CO., LTD. (2-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 22, 〒1008322, JP)
International Classes:
G02B6/26; A61B18/24; G02B6/32; G02B6/34; G02B6/42; H01S3/00; H01S3/10
Domestic Patent References:
WO2018042715A12018-03-08
Foreign References:
JPH0293612A1990-04-04
JPH0293408A1990-04-04
JP2000047065A2000-02-18
JP2012043820A2012-03-01
CN103149638A2013-06-12
JP2008187176A2008-08-14
JP2017173371A2017-09-28
JPH0394744A1991-04-19
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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