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WO2018168354A1 - Composant de fibre optique - Google Patents

Composant de fibre optique Download PDF

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Publication number
WO2018168354A1
WO2018168354A1 PCT/JP2018/005961 JP2018005961W WO2018168354A1 WO 2018168354 A1 WO2018168354 A1 WO 2018168354A1 JP 2018005961 W JP2018005961 W JP 2018005961W WO 2018168354 A1 WO2018168354 A1 WO 2018168354A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
holding member
reinforcing member
optical
fiber component
Prior art date
Application number
PCT/JP2018/005961
Other languages
English (en)
Japanese (ja)
Inventor
新海　正博
亮平 福▲崎▼
長瀬　健司
裕三 佐藤
小巻　壮
基博 中原
修司 田地
哲雄 宮
Original Assignee
Tdk株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tdk株式会社 filed Critical Tdk株式会社
Priority to TW107108061A priority Critical patent/TW201837515A/zh
Publication of WO2018168354A1 publication Critical patent/WO2018168354A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/30—Optical coupling means for use between fibre and thin-film device

Definitions

  • the present disclosure relates to an optical fiber component that connects an optical fiber to an optical circuit.
  • Patent Document 1 a support surface is disposed outside a curved portion of an optical fiber, and the support surface and the optical fiber are fixed with an adhesive.
  • Patent Document 1 since the optical fiber is fixed with an adhesive inside the support surface, if tensile stress is applied to the optical fiber due to other parts coming into contact with the optical fiber during assembly, the optical fiber is fixed with the adhesive. There is a possibility that the optical fiber is broken at the portion where the operation is not performed.
  • This disclosure is intended to prevent disconnection of an optical fiber even when the optical fiber is connected to an optical circuit in a curved state.
  • the optical fiber component of the present disclosure is An end face of the optical fiber is disposed at one end, and a holding member that holds the optical fiber so that the optical fiber extends at the other end;
  • a reinforcing member that is disposed in the extending direction of the optical fiber with respect to the holding member, and at least a part of which is fixed to the holding member; At least a part is fixed to the reinforcing member, protrudes to the other end side of the holding member from the other end of the holding member, and the protruding portion is predetermined along the extending direction of the optical fiber.
  • a bending restricting portion curved with a curved radius of curvature; Is provided.
  • an object is to prevent disconnection of the optical fiber during assembly.
  • FIG. 1 shows a first schematic configuration of an optical fiber component according to a first embodiment.
  • 2 shows a second schematic configuration of the optical fiber component according to the first embodiment.
  • 3 shows a third schematic configuration of the optical fiber component according to the first embodiment.
  • 4 shows a fourth schematic configuration of an optical fiber component according to Embodiment 1.
  • FIG. 5 shows a fifth schematic configuration of an optical fiber component according to Embodiment 1.
  • 6 shows a sixth schematic configuration of an optical fiber component according to Embodiment 1.
  • 6 is a first example of an optical fiber component according to Embodiment 2. It is a 2nd example of the optical fiber component which concerns on Embodiment 2.
  • FIG. It is a 3rd example of the optical fiber component which concerns on Embodiment 2.
  • FIG. 6 is a first example of an optical fiber component according to Embodiment 3.
  • FIG. 6 is a top view, a side view, and a cross-sectional view showing a first example of an optical fiber component according to Embodiment 3.
  • 6 is a second example of an optical fiber component according to Embodiment 3.
  • FIG. 6 is a top view, a side view, and a cross-sectional view showing a second example of an optical fiber component according to Embodiment 3.
  • It is a 3rd example of the optical fiber component which concerns on Embodiment 3.
  • FIG. It is a 1st example of a connection with the optical circuit of the optical fiber component which concerns on Embodiment 3.
  • FIG. is a 2nd connection example with the optical circuit of the optical fiber component which concerns on Embodiment 3.
  • FIG. 6 is a 1st example of a connection with the optical circuit of the optical fiber component which concerns on Embodiment 3.
  • FIG. is a 2nd connection example with the optical circuit
  • the optical fiber component 2 is a member that connects the end face 26 ⁇ / b> A of the optical fiber 26 to the optical circuit 3.
  • the optical circuit 3 is, for example, a photonic optical circuit (hereinafter referred to as an optical circuit) including an optical waveguide and an optical coupler.
  • the optical fiber component 2 includes a holding member 23, a reinforcing member 24, and a bending restricting portion 25.
  • the end surface 26A of the optical fiber 26 is disposed on the end surface 23A that is one end of the holding member 23, and the optical fiber 26 extends in a curved manner on the end surface 23B that is the other end of the holding member 23.
  • the extending direction of the optical fiber 26 is a specific direction in the circumferential direction of the optical fiber 26 on the end face 23B. For example, as shown in FIG. 1, when the end face 26A of the optical fiber 26 is connected to the upper surface 3A of the optical circuit 3, the extending direction D1 of the optical fiber 26 is a direction along the upper surface 3A of the optical circuit 3.
  • the end surface 23A of the holding member 23 is joined to the upper surface 3A of the optical circuit 3. It is preferable to use a light curable resin such as an ultraviolet curable resin for the bonding. It is preferable that the end surface 23 ⁇ / b> A of the holding member 23 and the end surface 24 ⁇ / b> A of the reinforcing member 24 are arranged on the same plane and joined to the upper surface 3 ⁇ / b> A of the optical circuit 3. Since the bonding area with the upper surface 3A of the optical circuit 3 is increased, the bonding strength can be reinforced.
  • the reinforcing member 24 may be end-face polished together with the optical fiber 26 and the holding member 23 to which the optical fiber 26 is fixed.
  • the angle ⁇ formed between the optical axis at the end face 26A of the optical fiber 26 and the end face 23A of the holding member 23 is preferably not 90 °, thereby preventing attenuation due to reflection at the end face 26A.
  • the angle ⁇ is preferably an angle matched to the light incident / exit direction from the optical circuit 3.
  • the extending direction D1 of the optical fiber 26 is a direction substantially perpendicular to the upper face 3A of the optical circuit 3.
  • the holding member 23 is a member that holds the optical fiber 26, and any optical component such as a capillary or a V-groove can be used.
  • the side surface 26 ⁇ / b> C of the optical fiber 26 is covered with the holding member 23, whereby the holding member 23 holds the optical fiber 26.
  • the end face 23A is fixed to the optical circuit 3, and the end face 26A of the optical fiber 26 is coupled to the optical waveguide or optical coupler of the optical circuit 3.
  • the reinforcing member 24 is disposed in the extending direction D1 of the optical fiber 26 with respect to the holding member 23. At least a part of the side surface 24 ⁇ / b> C of the reinforcing member 24 is fixed to the side surface 23 ⁇ / b> C of the holding member 23.
  • the area where the reinforcing member 24 and the holding member 23 are fixed is preferably large, and is located on the entire side surface 23C of the holding member 23 located on the extending direction D1 side or on the opposite side to the extending direction D1. It is preferable that the entire side surface 24C of the reinforcing member 24 is fixed.
  • At least a part of the bending restricting portion 25 is fixed to the reinforcing member 24.
  • the bending restricting portion 25 is fixed to the side surface 24C or the end surface 24B of the reinforcing member 24.
  • the bend restricting portion 25 is preferably fixed to the end surface 24 ⁇ / b> B of the reinforcing member 24 at the surface disposed on the optical circuit 3 side of the bend restricting portion 25.
  • the bending restricting portion 25 protrudes to the end surface 23B side of the holding member 23 from the end surface 23B of the holding member 23, and the protruding portion is provided with a curved surface 25A.
  • the curved surface 25A is curved with a predetermined radius of curvature along the extending direction D1 of the optical fiber 26.
  • the predetermined radius of curvature is a radius of curvature that can prevent the optical fiber 26 from being excessively bent and broken when the optical fiber 26 is pulled. For example, if the allowable bending radius of the optical fiber 26 is 30 mm, the predetermined bending radius of the curved surface 25A is 30 mm or more.
  • the optical fiber 26 is preferably fixed to the bending restricting portion 25 with an adhesive.
  • the thermal expansion coefficient of the reinforcing member 24 is preferably equal to the thermal expansion coefficient of the holding member 23 from the viewpoint of temperature characteristics and long-term reliability.
  • the reinforcing member 24 is preferably made of the same material as the holding member 23.
  • the reinforcing member 24 is preferably made of the same glass material as the holding member 23 or a ceramic material or a plastic material having a thermal expansion coefficient equivalent to that of the glass material.
  • the bending restricting portion 25 is preferably a separate member from the reinforcing member 24.
  • glass or plastic can be used.
  • the thermal expansion coefficient of the bending restricting portion 25 is preferably equal to the thermal expansion coefficient of the reinforcing member.
  • the bending restricting portion 25 and the reinforcing member 24 may be the same member. In this case, the bending restricting portion 25 and the reinforcing member 24 can be integrated and formed simultaneously.
  • FIG. 1 and 2 show an example in which the end surface 23B of the holding member 23 and the end surface 24B of the reinforcing member 24 are arranged on the same plane, but the present disclosure is not limited thereto.
  • the end surface 26A of the optical fiber 26 is connected to the upper surface 3A of the optical circuit
  • the end surface 24B of the reinforcing member 24 is closer to the upper surface 3A of the optical circuit 3 than the end surface 23B of the holding member 23, as shown in FIG. It may be arranged.
  • the end surface 23B of the holding member 23 is closer to the upper surface 3A of the optical circuit 3 than the end surface 24B of the reinforcing member 24, as shown in FIG. It may be arranged.
  • the bending restricting portion 25 has the same size as the end surface 23B of the holding member 23, but the present disclosure is not limited to this.
  • the bending restricting portion 25 may be smaller than the end surface 23 ⁇ / b> B of the holding member 23.
  • the bending restricting portion 25 may be larger than the end surface 23 ⁇ / b> B of the holding member 23.
  • the shape of the bending restricting portion 25 is arbitrary, and may be a fan shape as shown in FIG. 3 or a semicircular shape as shown in FIG.
  • FIGS. 5 and 6 show an example in which the end surface 23A of the holding member 23 and the end surface 24A of the reinforcing member 24 are arranged on the same plane, the present disclosure is not limited to this.
  • the convex surface 25A is arranged on the curved side of the optical fiber 26. Therefore, disconnection of the optical fiber 26 during assembly can be prevented.
  • the present disclosure is not limited to the optical circuit 3, and the same effect can be obtained even when the optical fiber component 2 is connected to an arbitrary optical component.
  • FIG. 7 is a top view, a side view, and an AA ′ sectional view showing an example of the optical fiber component according to the present embodiment.
  • the optical fiber component according to this embodiment includes a flat plate-shaped reinforcing member 24.
  • an adhesive is used to fix the holding member 23 and the reinforcing member 24.
  • FIG. 7 shows an example in which a capillary for holding a plurality of optical fibers 26 is used as the holding member 23 as an example.
  • a capillary for holding a plurality of optical fibers 26 is used as the holding member 23 as an example.
  • the cross-sectional shape of the capillary is not limited to an elliptical shape, a circular shape or a D-shape obtained by cutting a part of the circular shape, A cross-sectional shape such as a rectangle or an ellipse may be used.
  • the plurality of optical fiber insertion holes of the capillary may be radial or parallel to each other.
  • the holding member 23 of this embodiment may use a V-groove that holds a plurality of optical fibers 26 as the holding member 23.
  • the optical fibers 26 arranged in the holding member 23 are not limited to one row, and may be two or more rows.
  • FIG. 7 as an example, an example in which the end surface 23B and the end surface 24B are arranged on the same surface is shown, but the present disclosure is not limited thereto.
  • a cutout 24 ⁇ / b> L may be provided in the end surface 24 ⁇ / b> B of the reinforcing member 24, and the bending restricting portion 25 may be arranged in the cutout 24 ⁇ / b> L.
  • the width W 24L of the notch 24L is arbitrary, but preferably has a width that does not allow the optical fiber 26 to contact the end surface 24B of the reinforcing member 24.
  • FIG. 11 shows a first example of an optical fiber component according to this embodiment.
  • FIG. 12 is a top view, side view, and AA ′ cross-sectional view showing a first example of an optical fiber component according to the present embodiment.
  • the optical fiber component 2 according to the present embodiment includes a U-shaped concave portion 24 ⁇ / b> G on the side surface 24 ⁇ / b> C of the reinforcing member 24.
  • the side surfaces in the three directions of the holding member 23 are surrounded by the reinforcing member 24.
  • FIG. 13 shows a second example of the optical fiber component according to the present embodiment.
  • FIG. 14 is a top view, side view, and A-A ′ cross-sectional view showing a second example of the optical fiber component according to the present embodiment.
  • the optical fiber component 2 according to the present embodiment includes an L-shaped recess 24G on the side surface 24C of the reinforcing member 24.
  • the two-side surfaces of the holding member 3 are surrounded by the reinforcing member 24.
  • the holding member 23 is fixed to the recess 24G.
  • the side surface 24 ⁇ / b> C of the reinforcing member 24 with the recess 24 ⁇ / b> G that accommodates the holding member 23, it is easy to arrange the holding member 23 on the reinforcing member 24 and to firmly fix the holding member 23 and the reinforcing member 24. be able to.
  • an adhesive is used to fix the holding member 23 and the reinforcing member 24.
  • the depth H 24G of the recess 24G is arbitrary, but is preferably higher than the height H 23 of the holding member 23 from the bottom surface 24Gb of the recess 24G.
  • the notch 24L may be provided in the end surface 24B of the reinforcement member 24, and the bending control part 25 may be arrange
  • the width of the notch 24L is the same as the width W 24G of the recess 24G, so that the manufacture of the reinforcing member 24 can be facilitated.
  • FIG. 15 is a side view and A-A ′ sectional view showing a third example of the optical fiber component according to the present embodiment.
  • the optical fiber component 2 according to the present embodiment includes a through hole 24H in the reinforcing member 24.
  • the side surfaces in the four directions of the holding member 3 are surrounded by the reinforcing member 24.
  • FIG. 16 the 1st example of a connection with the optical circuit 3 of the optical fiber component which concerns on this embodiment is shown.
  • At least a part of the end surface 24B of the reinforcing member 24 arranged on the end surface 23B side of the holding member 23 protrudes toward the end surface 23B side of the holding member 23 from the optical fiber 26 extending from the end surface 23B of the holding member 23.
  • H 324 is the height of the reinforcing member 24 from the upper surface 3A of the optical circuit 3
  • H 325 is the height of the bending restricting portion 25 from the upper surface 3A of the optical circuit
  • T 26 is the height of the optical fiber 26.
  • FIG. 17 the 2nd example of a connection with the optical circuit 3 of the optical fiber component which concerns on this embodiment is shown.
  • the 16 and 17 can be used to provide the reinforcing member 24 with a protection function for the optical fiber 26.
  • the optical fiber 26 can be protected from falling objects and contact from the top.
  • This disclosure can be applied to the information and communication industry.
  • Optical fiber component 23 Holding member 23A, 23B: Holding member end surface 23C: Holding member side surface 24: Reinforcing member 24A, 24B: Reinforcing member end surface 24C: Reinforcing member side surface 24L: Notch 24G: Recess 24Gb: Recessed bottom surface 25: Bending restricting portion 25A: Bending restricting portion curved surface 26: Optical fiber 26A: Optical fiber end surface 26C: Optical fiber side surface 3: Optical circuit 3A: Optical circuit upper surface 3B: Optical circuit end surface

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

Selon la présente invention, un composant de fibre optique (2) comprend : un élément de maintien (23) qui maintient une fibre optique (26) de telle sorte qu'une surface d'extrémité (26A) de la fibre optique (26) est disposée sur un côté de surface d'extrémité (23A) de l'élément de maintien (23), la fibre optique (26) s'étendant à partir d'un côté de surface d'extrémité (23B) de l'élément de maintien (23) ; un élément de renforcement (24) disposé dans la direction d'extension D1 de la fibre optique (26) par rapport à l'élément de maintien (23) et fixé à l'élément de maintien (23) ; et une partie de limitation de courbure (25) qui est fixée à l'élément de renforcement (24), qui fait saillie au-delà de la surface d'extrémité (23B) et dont la partie en saillie est incurvée à un rayon de courbure prédéterminé qui dépend de la direction d'extension D1 de la fibre optique (26).
PCT/JP2018/005961 2017-03-14 2018-02-20 Composant de fibre optique WO2018168354A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW107108061A TW201837515A (zh) 2017-03-14 2018-03-09 光纖零件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-048918 2017-03-14
JP2017048918A JP2018151571A (ja) 2017-03-14 2017-03-14 光ファイバ部品

Publications (1)

Publication Number Publication Date
WO2018168354A1 true WO2018168354A1 (fr) 2018-09-20

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ID=63523596

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PCT/JP2018/005961 WO2018168354A1 (fr) 2017-03-14 2018-02-20 Composant de fibre optique

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JP (1) JP2018151571A (fr)
TW (1) TW201837515A (fr)
WO (1) WO2018168354A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7097246B2 (ja) 2018-07-04 2022-07-07 古河電気工業株式会社 光路曲げコネクタ、光路曲げコネクタアッセンブリ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1078532A (ja) * 1996-09-03 1998-03-24 Harness Sogo Gijutsu Kenkyusho:Kk 光ファイバケーブルのコネクタ
JPH1078534A (ja) * 1996-09-03 1998-03-24 Yazaki Corp 光コネクタ
JP2011522288A (ja) * 2008-05-30 2011-07-28 コーニング インコーポレイテッド フォトニックバンドギャップ光ファイバを用いるファイバ集合体
US20130223795A1 (en) * 2012-02-27 2013-08-29 Sumitomo Electric Industries, Ltd. Optical coupling element and manufacturing method
JP2016212414A (ja) * 2015-05-11 2016-12-15 株式会社中原光電子研究所 導波路用結合回路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1078532A (ja) * 1996-09-03 1998-03-24 Harness Sogo Gijutsu Kenkyusho:Kk 光ファイバケーブルのコネクタ
JPH1078534A (ja) * 1996-09-03 1998-03-24 Yazaki Corp 光コネクタ
JP2011522288A (ja) * 2008-05-30 2011-07-28 コーニング インコーポレイテッド フォトニックバンドギャップ光ファイバを用いるファイバ集合体
US20130223795A1 (en) * 2012-02-27 2013-08-29 Sumitomo Electric Industries, Ltd. Optical coupling element and manufacturing method
JP2016212414A (ja) * 2015-05-11 2016-12-15 株式会社中原光電子研究所 導波路用結合回路

Also Published As

Publication number Publication date
JP2018151571A (ja) 2018-09-27
TW201837515A (zh) 2018-10-16

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