JPH0593824A - Optical connector and its manufacture - Google Patents

Optical connector and its manufacture

Info

Publication number
JPH0593824A
JPH0593824A JP25652391A JP25652391A JPH0593824A JP H0593824 A JPH0593824 A JP H0593824A JP 25652391 A JP25652391 A JP 25652391A JP 25652391 A JP25652391 A JP 25652391A JP H0593824 A JPH0593824 A JP H0593824A
Authority
JP
Japan
Prior art keywords
optical connector
optical
coupling end
optical fiber
face
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP25652391A
Other languages
Japanese (ja)
Inventor
Toshiaki Kakii
俊昭 柿井
Toshiaki Satake
俊明 佐武
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP25652391A priority Critical patent/JPH0593824A/en
Publication of JPH0593824A publication Critical patent/JPH0593824A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/381Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3818Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
    • G02B6/3821Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/36Mechanical coupling means
    • G02B6/38Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807Dismountable connectors, i.e. comprising plugs
    • G02B6/3833Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3834Means for centering or aligning the light guide within the ferrule
    • G02B6/3838Means for centering or aligning the light guide within the ferrule using grooves for light guides
    • G02B6/3839Means for centering or aligning the light guide within the ferrule using grooves for light guides for a plurality of light guides

Landscapes

  • Mechanical Coupling Of Light Guides (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To provide the multifiber optical connector which easily provides PC(Physical Contact) coupling and its manufacture by positioning an end surface of a multi-fiber optical fiber on a positioning member while projecting it from a coupling end surface. CONSTITUTION:An optical connector ferrule 2 consists of a couple of flat plates 2a and 2b and one flank is the coupling end surface (c). Plural V grooves (v) are formed in the flat plate 2b in the direction of the optical axis where a ribbon of optical fibers is mounted and one end part is exposed in the coupling end surface (c). The four optical fibers 1a are positioned with an adhesive while projecting by about 1.0mum from the coupling end surface (c) and held by the flat plate 2a. A couple of guide holes (g) are formed on both sides of the V grooves (v) of the optical connector ferrule 2. The optical connector has its coupling end surface (c) made to abut on the coupling end surface of an opposite optical connector through guide pins. The respective optical fibers 1a are fixed while projecting from the coupling end surfaces, so they contact each other directly to provide the PC coupling.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は結合端面に沿って多心
光ファイバの端面を位置決めする位置決め部材を備えた
光コネクタ及びその製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical connector having a positioning member for positioning an end face of a multi-core optical fiber along a coupling end face, and a method of manufacturing the same.

【0002】[0002]

【従来の技術】光コネクタによる光ファイバの接続方法
として、軸合せしたファイバ相互を突合せする構造が知
られている。この場合、接続部の機構上の不完全などに
より光ファイバ間にわずかな間隙が発生する。その為、
光の反射が生じ、これが光源である半導体レーザの雑音
や歪みを増加させる原因になる。この反射による影響は
アナログ伝送技術の適用、高速ディジタル伝送において
特に顕著に表れる。
2. Description of the Related Art As a method of connecting optical fibers with an optical connector, a structure in which axially aligned fibers are butted against each other is known. In this case, a slight gap occurs between the optical fibers due to imperfections in the mechanical structure of the connecting portion. For that reason,
Light reflection occurs, which causes noise and distortion of the semiconductor laser, which is the light source, to increase. The influence of this reflection is particularly remarkable in the application of analog transmission technology and high-speed digital transmission.

【0003】この反射対策を施した光コネクタの基本構
造として、斜め研磨形、ルーフトップ形が知られている
(“無反射・低損失光コネクタ”、NTT研究実用化報
告第33巻第3号(1884)、p.503-515 )。
As a basic structure of this optical connector provided with a countermeasure against reflection, an obliquely polished type and a rooftop type are known (“non-reflective / low loss optical connector”, NTT Research Practical Report Vol. 33, No. 3). (1884), p.503-515).

【0004】従来の光コネクタでは、結合端面のフレネ
ル損や反射を防止する為に、端面を球面状に加工し、光
コネクタの光ファイバ(SiO2 )部が直接接触するP
C(Physical Contact)結合を実現してきた。
In the conventional optical connector, in order to prevent Fresnel loss and reflection of the coupling end face, the end face is processed into a spherical shape, and the optical fiber (SiO 2 ) portion of the optical connector directly contacts P
C (Physical Contact) connection has been realized.

【0005】[0005]

【発明が解決しようとする課題】しかし、例えばピッチ
0.25mmで8心の光ファイバをガイドピンで結合する
多心光コネクタでは、その端面形成が困難であるという
理由から広範囲に亘ってPC結合を実現することはでき
なかった。
However, for example, in a multi-fiber optical connector in which an 8-fiber optical fiber with a pitch of 0.25 mm is connected by a guide pin, it is difficult to form the end face, and therefore, the PC connection is performed over a wide range. Could not be realized.

【0006】そこで本発明は、PC結合を実現できる多
心光コネクタ及びその製造方法を提供することを目的と
する。
Therefore, an object of the present invention is to provide a multi-fiber optical connector which can realize PC connection and a manufacturing method thereof.

【0007】[0007]

【課題を解決するための手段】上記課題を解決する為
に、本発明に係る光コネクタは結合端面に沿って多心光
ファイバの端面を位置決めする位置決め部材を備えた光
コネクタにおいて、多心光ファイバは石英系材料で形成
され、結合端面から突出した状態で位置決め部材に位置
決めされている。
In order to solve the above problems, an optical connector according to the present invention is an optical connector provided with a positioning member for positioning the end face of a multi-fiber optical fiber along a coupling end face. The fiber is made of a silica-based material, and is positioned by the positioning member while protruding from the coupling end surface.

【0008】また、本発明に係る光コネクタの製造方法
は結合端面に沿って多心光ファイバの端面を位置決めす
る位置決め部材を備えた光コネクタの製造方法におい
て、多心光ファイバとは異なる材料で形成され、多心光
ファイバが固定された位置決め部材を準備する工程と、
位置決め部材の結合端面を研磨する工程と、多心光ファ
イバより位置決め部材に対して高いエッチングレートを
有するエッチャントで結合端面をエッチングし、多心光
ファイバを結合端面から突出させる工程とを含んで構成
される。
In the method for manufacturing an optical connector according to the present invention, in the method for manufacturing an optical connector provided with a positioning member for positioning the end face of the multi-fiber optical fiber along the coupling end face, a material different from that of the multi-fiber optical fiber is used. And a step of preparing a positioning member to which the formed multi-fiber optical fiber is fixed,
And a step of polishing the coupling end surface of the positioning member, and a step of etching the coupling end surface with an etchant having a higher etching rate for the positioning member than the multi-core optical fiber to project the multi-core optical fiber from the coupling end surface. To be done.

【0009】[0009]

【作用】本発明に係る光コネクタは、結合端面から光フ
ァイバが突出しているので、光ファイバ同士を互いに直
接接触させたPC結合が簡単に実現できる。
In the optical connector according to the present invention, since the optical fibers project from the coupling end face, the PC coupling in which the optical fibers directly contact each other can be easily realized.

【0010】また、本発明に係る光コネクタの製造方法
では、位置決め部材の結合端面に光ファイバの端面が露
出した状態でエッチングがなされるが、位置決め部材は
光ファイバより速くエッチングされるので、時間と経過
と共に、光ファイバは結合端面から突き出た状態になっ
てくる。
Further, in the method of manufacturing an optical connector according to the present invention, etching is performed with the end face of the optical fiber exposed at the coupling end face of the positioning member. However, since the positioning member is etched faster than the optical fiber, it takes time. Then, the optical fiber comes to project from the coupling end face.

【0011】[0011]

【実施例】以下、添付図面を参照して、本発明の一実施
例に係る光コネクタおよびその製造方法を説明する。な
お、説明において、同一要素には同一符号を用い、重複
する説明は省略する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An optical connector and a method of manufacturing the same according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In the description, the same elements will be denoted by the same reference symbols, without redundant description.

【0012】図1は本発明の一実施例に係る4心用光コ
ネクタを示す斜視図、図2は1対の光コネクタが結合し
た状態を示す平面図である。
FIG. 1 is a perspective view showing an optical connector for four cores according to an embodiment of the present invention, and FIG. 2 is a plan view showing a state in which a pair of optical connectors are combined.

【0013】本実施例に係る光コネクタは4心テープ状
光ファイバ心線1、光コネクタフェルール(位置決め部
材)2、樹脂部材3を含んで構成されている(図1参
照)。光コネクタフェルール2は1対の平板2a、2b
から構成され、その一側面が結合端面cになっている。
また、平板2bにはテープ状光ファイバ心線1が装着さ
れる光軸方向に沿って複数のV溝vが形設されており、
その一端部は結合端面cに露出している。4本の光ファ
イバ1aは結合端面cから約1.0μm突き出た状態で
接着剤により位置決めされ、平板2aにより保持されて
いる。なお、光コネクタフェルール2はV溝vの両側に
1対のガイド穴gが形設されている。樹脂部材3の形状
は、例えば、光ファイバ心線1が位置決めされた光コネ
クタフェルール2を金型内に装着して金型内にエポキシ
樹脂を注入する、公知のインサート成形により形成され
る。
The optical connector according to this embodiment comprises a four-core tape-shaped optical fiber core wire 1, an optical connector ferrule (positioning member) 2 and a resin member 3 (see FIG. 1). The optical connector ferrule 2 is a pair of flat plates 2a, 2b.
, And one side surface thereof is a coupling end surface c.
Further, a plurality of V grooves v are formed on the flat plate 2b along the optical axis direction in which the tape-shaped optical fiber core wire 1 is mounted,
One end thereof is exposed at the joint end face c. The four optical fibers 1a are positioned by an adhesive and are held by the flat plate 2a while protruding from the coupling end face c by about 1.0 μm. The optical connector ferrule 2 has a pair of guide holes g formed on both sides of the V groove v. The shape of the resin member 3 is formed by, for example, known insert molding in which the optical connector ferrule 2 in which the optical fiber core wire 1 is positioned is mounted in a mold and epoxy resin is injected into the mold.

【0014】このように形成された光コネクタは、1対
のガイドピン5を介して、他の光コネクタと結合端面c
が互いに突き合わせられる。それぞれの光ファイバ1a
は結合端面から突き出た状態で固定されているので、光
ファイバ1aは互いに直接接触し、PC結合が実現する
(図2参照)。
The optical connector formed in this manner is connected to the other optical connector through the pair of guide pins 5 and the coupling end face c.
Are butted against each other. Each optical fiber 1a
Are fixed in a state of protruding from the coupling end face, the optical fibers 1a are in direct contact with each other, and PC coupling is realized (see FIG. 2).

【0015】次に、本発明の実施例に係る光コネクタの
製造方法を説明する。図3は本実施例に係る光コネクタ
の製造方法を示すフローチャート、図4は光コネクタの
結合端面のエッチング状態(同図(a))及び光コネク
タフェルール及び光ファイバのエッチング後の状態(同
図(b)、(c))を示す図である。本実施例では、光
ファイバ1aに石英系ガラス(SiO2 )、光コネクタ
フェルール2にシリコン(Si)を使用している。
Next, a method of manufacturing the optical connector according to the embodiment of the present invention will be described. FIG. 3 is a flow chart showing a method for manufacturing an optical connector according to the present embodiment, and FIG. 4 is an etching state of the coupling end face of the optical connector (FIG. 4A) and a state after etching the optical connector ferrule and the optical fiber (FIG. It is a figure which shows (b) and (c). In this embodiment, silica glass (SiO 2 ) is used for the optical fiber 1a and silicon (Si) is used for the optical connector ferrule 2.

【0016】まず、平板2bのV溝vに光ファイバ1a
を接着剤で位置決めし平板2aで固定することにより、
結合端面に光ファイバ1aの端面が露出した状態で、光
コネクタフェルール2に光ファイバ心線1を固定する
(ステップ101)。次に、光ファイバ1aが露出した
光コネクタフェルール2の結合端面を研磨し、光コネク
タフェルール2および光ファイバ1aの端面位置を揃え
る(ステップ102)。その後、光コネクタフェルール
2の結合端面をPH13のエッチング剤6に浸漬するこ
とにより(図4(a)参照)エッチング処理を施す(ス
テップ103)。例えば、エッチャントの液温を約50
℃、浸漬時間を約5分間に設定することにより、光コネ
クタフェルール2の結合端面を約1.0μm突出させる
ことができる。この場合、結合端面cから光ファイバ1
aは接着剤で外周部が被覆された状態で突出しているの
で(同図(b)、(c)参照)、突出した光ファイバ1
aを十分に保護することができる。さらに、突き出た光
ファイバ1aにバフ研磨を施し、光ファイバ1aの端面
に丸味加工を施す。この丸味加工により、光ファイバの
着脱の際、光ファイバ1aのエッヂ部が欠けることを低
減することができる。 このように、本実施例による
と、端面をエッチングすることにより、簡単に光ファイ
バの端面を突出させることができ、容易に、量産ベース
で多心光ファイバのPC結合を実現できる。この場合、
ウエットエッチングの性質上、エッチャントの液温、浸
漬時間を管理することにより、光ファイバの突出量をサ
ブミクロンのオーダでコントロールできる。
First, the optical fiber 1a is inserted into the V groove v of the flat plate 2b.
Is fixed with an adhesive and fixed with the flat plate 2a,
The optical fiber core wire 1 is fixed to the optical connector ferrule 2 with the end face of the optical fiber 1a exposed at the coupling end face (step 101). Next, the coupling end face of the optical connector ferrule 2 with the exposed optical fiber 1a is polished to align the end face positions of the optical connector ferrule 2 and the optical fiber 1a (step 102). After that, the coupling end face of the optical connector ferrule 2 is immersed in the etching agent 6 of the PH 13 (see FIG. 4A) to perform the etching process (step 103). For example, the etchant liquid temperature is about 50
By setting the temperature and the immersion time to about 5 minutes, the coupling end face of the optical connector ferrule 2 can be projected by about 1.0 μm. In this case, from the coupling end face c to the optical fiber 1
Since a is projected in a state where the outer peripheral portion is covered with an adhesive (see (b) and (c) in the figure), the projected optical fiber 1
a can be sufficiently protected. Further, the protruding optical fiber 1a is buffed, and the end face of the optical fiber 1a is rounded. This rounding process can reduce chipping of the edge portion of the optical fiber 1a when the optical fiber is attached or detached. As described above, according to the present embodiment, the end face of the optical fiber can be easily projected by etching the end face, and the PC coupling of the multi-core optical fiber can be easily realized on a mass production basis. in this case,
Due to the nature of wet etching, the amount of protrusion of the optical fiber can be controlled on the order of submicrons by controlling the liquid temperature of the etchant and the immersion time.

【0017】上述した方法により1対の8心用光コネク
タを作製し、これらを光結合した時の接続損失を測定し
たところ、マッチングオイルを使用しない状態で平均
0.2dB、マッチングオイルを使用した状態で0.1
9dBという極めて低い損失であり、十分なPC結合が
実現されていることが確認された。
A pair of 8-core optical connectors were manufactured by the above-mentioned method, and the connection loss when these were optically coupled was measured. As a result, an average of 0.2 dB was used with no matching oil. 0.1 in the state
It was confirmed that sufficient PC coupling was realized with a very low loss of 9 dB.

【0018】なお、本発明は上述した実施例に限定され
るものではない。例えば、上述した実施例では端面を直
角研磨した光ファイバを用いたが、さらに、反射を低減
するために、直角研磨ではなく、例えば8度の傾斜角で
斜め研磨した光ファイバを使用してもよい。この場合、
反射減衰量は50dB以上にすることができる。
The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the optical fiber whose end face is polished at right angles is used. However, in order to reduce reflection, an optical fiber whose angle is 8 ° is used instead of right angle polishing. Good. in this case,
The return loss can be 50 dB or more.

【0019】[0019]

【発明の効果】以上説明したように、光ファイバが結合
端面から突出しているので、多心光コネクタに装着され
た多心光ファイバのPC結合を簡単に実現できる。
As described above, since the optical fiber projects from the coupling end face, the PC coupling of the multi-core optical fiber mounted on the multi-core optical connector can be easily realized.

【0020】また、本発明に係る光コネクタの製造方法
は、光ファイバより位置決め部材に対するエッチングレ
ートの高いエッチャントを用いるので、量産ベースで、
サブミクロンオーダの精度で、上述した多心光コネクタ
を製造できる。
Further, in the method of manufacturing the optical connector according to the present invention, since the etchant having a higher etching rate for the positioning member than the optical fiber is used, the mass production base is used.
The multi-fiber optical connector described above can be manufactured with an accuracy of the order of submicron.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例に係る光コネクタを示す斜視
図である。
FIG. 1 is a perspective view showing an optical connector according to an embodiment of the present invention.

【図2】テープ状光ファイバにおける光ファイバの配列
方向と直交する方向からみた本発明の一実施例に係る光
コネクタの結合状態を示す平面図である。
FIG. 2 is a plan view showing a coupled state of an optical connector according to an embodiment of the present invention as seen from a direction orthogonal to an array direction of optical fibers in a tape-shaped optical fiber.

【図3】本発明の一実施例に係る光コネクタの製造方法
を示すフローチャートである。
FIG. 3 is a flowchart showing a method for manufacturing an optical connector according to an embodiment of the present invention.

【図4】本発明の一実施例に係る光コネクタの製造方法
におけるエッチング状態及びエッチング後の光コネクタ
を示す概念図である。
FIG. 4 is a conceptual diagram showing an etching state and an optical connector after etching in a method of manufacturing an optical connector according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1…光ファイバ心線、2…光コネクタフェルール、3…
樹脂部材、5…ガイドピン、6…エッチング剤、c…結
合端面、g…ガイド穴、v…V溝。
1 ... Optical fiber core wire, 2 ... Optical connector ferrule, 3 ...
Resin member, 5 ... Guide pin, 6 ... Etching agent, c ... Bonding end face, g ... Guide hole, v ... V groove.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 結合端面に沿って多心光ファイバの端面
を位置決めする位置決め部材を備えた光コネクタにおい
て、 前記多心光ファイバは石英系ガラスで形成され、前記結
合端面から突出した状態で前記位置決め部材に位置決め
されている光コネクタ。
1. An optical connector comprising a positioning member for positioning an end face of a multi-fiber optical fiber along a coupling end face, wherein the multi-fiber optical fiber is made of silica glass and is projected from the coupling end face. An optical connector positioned on the positioning member.
【請求項2】 前記多心光ファイバは、前記結合端面か
ら0.1μmから5μmの範囲で突出していることを特
徴とする請求項1記載の光コネクタ。
2. The optical connector according to claim 1, wherein the multi-core optical fiber projects from the coupling end surface in a range of 0.1 μm to 5 μm.
【請求項3】 結合端面に沿って多心光ファイバの端面
を位置決めする位置決め部材を備えた光コネクタの製造
方法において、 多心光ファイバとは異なる材料で形成され、多心光ファ
イバが固定された位置決め部材を準備する工程と、前記
位置決め部材の結合端面を研磨する工程と、前記多心光
ファイバより前記位置決め部材に対して高いエッチング
レートを有するエッチャントで前記結合端面をエッチン
グし、前記多心光ファイバを前記結合端面から突出させ
る工程とを含んで構成される光コネクタの製造方法。
3. A method of manufacturing an optical connector comprising a positioning member for positioning an end face of a multi-fiber optical fiber along a coupling end face, wherein the multi-fiber optical fiber is made of a material different from that of the multi-fiber optical fiber and is fixed. A positioning member, a step of polishing the coupling end face of the positioning member, and a step of etching the coupling end face with an etchant having a higher etching rate for the positioning member than the multi-core optical fiber, And a step of causing an optical fiber to project from the coupling end surface.
【請求項4】 前記多心光ファイバは石英系ガラスで形
成され、前記位置決め部材はシリコンで形成されている
ことを特徴とする請求項3記載の光コネクタの製造方
法。
4. The method of manufacturing an optical connector according to claim 3, wherein the multi-fiber optical fiber is made of silica glass and the positioning member is made of silicon.
JP25652391A 1991-10-03 1991-10-03 Optical connector and its manufacture Pending JPH0593824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25652391A JPH0593824A (en) 1991-10-03 1991-10-03 Optical connector and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25652391A JPH0593824A (en) 1991-10-03 1991-10-03 Optical connector and its manufacture

Publications (1)

Publication Number Publication Date
JPH0593824A true JPH0593824A (en) 1993-04-16

Family

ID=17293810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25652391A Pending JPH0593824A (en) 1991-10-03 1991-10-03 Optical connector and its manufacture

Country Status (1)

Country Link
JP (1) JPH0593824A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0990154A (en) * 1995-09-27 1997-04-04 Nec Corp Optical waveguide device, its connection structure and its manufacture
WO2002056079A1 (en) * 2001-01-09 2002-07-18 Takahiko Mukouda Connector component for multi-core optical fiber, ferrule, and method for manufacturing the same
WO2021131837A1 (en) 2019-12-25 2021-07-01 株式会社ヨコオ Optical connector mechanism and optical connector
EP1723456B1 (en) * 2004-02-18 2021-08-04 Color Chip (Israel) Ltd. System and method for the fabrication of an electro-optical module

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0990154A (en) * 1995-09-27 1997-04-04 Nec Corp Optical waveguide device, its connection structure and its manufacture
WO2002056079A1 (en) * 2001-01-09 2002-07-18 Takahiko Mukouda Connector component for multi-core optical fiber, ferrule, and method for manufacturing the same
US7083332B2 (en) 2001-01-09 2006-08-01 Takahiko Mukouda Connector component for multi-core optical fiber, ferrule, and method for manufacturing the same
EP1723456B1 (en) * 2004-02-18 2021-08-04 Color Chip (Israel) Ltd. System and method for the fabrication of an electro-optical module
WO2021131837A1 (en) 2019-12-25 2021-07-01 株式会社ヨコオ Optical connector mechanism and optical connector

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