OPTICAL FIBER BUNDLE AND OPTICAL FIBER BUNDLE DEVICE

To provide an optical fiber bundle and an optical fiber bundle device which can increase the amount of an outgoing beam.SOLUTION: In an optical fiber bundle 2 formed by bundling a plurality of optical fibers, an end part 21 at least on one side of the optical fiber bundle 2 in an axial direction is...

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Bibliographic Details
Main Authors INOMATA TOSHIICHI, HONDA NAOFUMI
Format Patent
LanguageEnglish
Japanese
Published 11.03.2022
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:To provide an optical fiber bundle and an optical fiber bundle device which can increase the amount of an outgoing beam.SOLUTION: In an optical fiber bundle 2 formed by bundling a plurality of optical fibers, an end part 21 at least on one side of the optical fiber bundle 2 in an axial direction is a taper part 23 formed into a tapered shape. In the end part 21 at least on the one side of the optical fiber bundle 2 in the axial direction, a portion at least on the side of an end surface 23t of the taper part 23 is a heat seal part 26 formed by heat-sealing the plurality of optical fibers. The plurality of optical fibers respectively have a numerical aperture NA of 0.4 or more.SELECTED DRAWING: Figure 1 【課題】出射光量を向上できる、光ファイババンドル及び光ファイババンドル装置を、提供する。【解決手段】光ファイババンドル２は、複数の光ファイバを束ねてなる光ファイババンドル２であって、光ファイババンドル２の少なくとも軸線方向一方側の端部２１が、テーパ状をなすテーパ部２３であり、光ファイババンドル２の少なくとも軸線方向一方側の端部２１において、テーパ部２３のうち少なくとも端面２３ｔ側の部分は、複数の光ファイバどうしが熱融着された熱融着部２６であり、複数の光ファイバは、それぞれ、開口数ＮＡが０．４以上である。【選択図】図１
Bibliography:Application Number: JP20200146264