JPH09145949A - Member and method for connecting optical fiber - Google Patents
Member and method for connecting optical fiberInfo
- Publication number
- JPH09145949A JPH09145949A JP30550795A JP30550795A JPH09145949A JP H09145949 A JPH09145949 A JP H09145949A JP 30550795 A JP30550795 A JP 30550795A JP 30550795 A JP30550795 A JP 30550795A JP H09145949 A JPH09145949 A JP H09145949A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- sleeve
- housing
- connecting member
- flat plate
- 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
Links
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、リボン状の光ファイバ
を工事現場等で容易に組み立てることのできる接続部材
及びこれを用いた接続方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting member which can easily assemble a ribbon-shaped optical fiber at a construction site and a connecting method using the connecting member.
【０００２】[0002]
【従来の技術】光通信の普及に伴い、光ファイバを布設
現場等で簡易に短時間で組み立てることが重要となって
いる。そのために従来は、Ｖ溝あるいはパイプを利用し
てファイバ端面を突き合わせる方法、又はこれらを改良
した方法（特開平５−１１９２２５号公報）がある。2. Description of the Related Art With the widespread use of optical communication, it has become important to assemble optical fibers easily at a construction site in a short time. Therefore, conventionally, there is a method of abutting the fiber end faces with each other using a V groove or a pipe, or a method of improving these (Japanese Patent Laid-Open No. 5-119225).
【０００３】[0003]
【発明が解決しようとする課題】上記の方法は、いづれ
も接続部材の構成が簡単であるために容易に組み立てる
ことができるので作業性は優れているが、接続精度に難
点があった。そこで本発明は、格別の工具を使用する事
無く、また、精度よく簡単に組み立てることのできる接
続部材及びこれを用いた接続方法を提供することを目的
とする。In any of the above methods, the construction of the connecting member is simple, so that the connecting member can be easily assembled, so that the workability is excellent, but there is a problem in connection accuracy. Therefore, an object of the present invention is to provide a connecting member that can be assembled accurately and easily without using a special tool and a connecting method using the connecting member.
【０００４】本発明に係わる光ファイバの接続部材は、
半円柱体の平面上に複数本の溝が軸方向に設けられ、該
溝の両側からリボン状光ファイバのクラッド部を挿入し
光ファイバの端面を突き合わせて接続するためのスリー
ブと、前記スリーブの上面から前記光ファイバのクラッ
ド部を押圧する平板と、前記平板に押圧力を付与するバ
ネと、前記スリーブの下方に位置し軸方向に摺動可能に
設けられたテーパ面を有する加圧部材と、前記バネ、ス
リーブ、平板及び加圧部材とを内包したハウジングとを
具備し、加圧部材をハウジングとスリーブの間に挿入す
ると、加圧部材はスリーブを押し上げ、バネが変形し平
板を介して光ファイバのクラッド部に押圧を与えること
を特徴とする。The optical fiber connecting member according to the present invention is
A plurality of grooves are provided on the plane of the semi-cylindrical body in the axial direction, and a sleeve for inserting the clad portion of the ribbon-shaped optical fiber from both sides of the groove and connecting the end faces of the optical fibers to each other by abutting, and the sleeve. A flat plate that presses the clad portion of the optical fiber from the upper surface, a spring that applies a pressing force to the flat plate, and a pressing member that is provided below the sleeve and that has a tapered surface that is slidable in the axial direction. A housing including the spring, the sleeve, the flat plate, and the pressure member. When the pressure member is inserted between the housing and the sleeve, the pressure member pushes up the sleeve, and the spring deforms to move the flat plate through the flat plate. It is characterized in that pressure is applied to the clad portion of the optical fiber.
【０００５】また、本発明に係わる光ファイバの接続方
法は、上記の光ファイバ接続部材を準備する工程と、接
続されるリボン状光ファイバの先端部の被覆を除去し、
端面を鏡面に処理する工程と、前記リボン状光ファイバ
を前記スリーブの両側から溝内に挿入して端面を突き合
わせる工程と、前記加圧部材を前記ハウジングと前記ス
リーブとの間に挿入する工程と、前記蓋によって前記リ
ボン状光ファイバをフジング上面に固定する工程とを備
え、加圧部材をハウジングとスリーブの間に挿入するこ
とによって、加圧部材はスリーブを押し上げ、バネが変
形して光ファイバのクラッド部に押圧を与えることを特
徴とする。The optical fiber connecting method according to the present invention comprises the steps of preparing the above-mentioned optical fiber connecting member, removing the coating on the tip of the ribbon-like optical fiber to be connected,
A step of treating the end surface into a mirror surface; a step of inserting the ribbon-shaped optical fiber into the groove from both sides of the sleeve to abut the end surface; and a step of inserting the pressure member between the housing and the sleeve. And a step of fixing the ribbon-shaped optical fiber to the upper surface of the fusible with the lid, and by inserting the pressure member between the housing and the sleeve, the pressure member pushes up the sleeve, and the spring deforms to cause the light. It is characterized in that pressure is applied to the clad portion of the fiber.
【０００６】[0006]
【作用】上記の構成によれば本発明に係わる接続部材
は、スリーブの上面に設けられた溝を利用して光ファイ
バの位置決めをするので高精度の軸合わせを行なうこと
ができる。接合されたファイバ端面近傍とスリーブと
は、テーパを有する加圧部材をハウジングの中へ摺動し
ながら押し込むことによって固定され、またファイバ被
覆部とハウジングとは両側に設けられた蓋によって固定
されるので信頼性が高く、簡単に組立てることができ
る。光ケーブル側の光ファイバ端面同士を突き合わせて
接続部材に組み込む方式なので、融着接続等を使用する
必要がなく、特別の工具をしようすることなく組み立て
作業を行なうことができる。According to the above construction, the connecting member according to the present invention positions the optical fiber by utilizing the groove provided on the upper surface of the sleeve, so that highly accurate axis alignment can be performed. The vicinity of the joined fiber end surface and the sleeve are fixed by sliding a pressure member having a taper into the housing while sliding, and the fiber coating portion and the housing are fixed by lids provided on both sides. So it is highly reliable and easy to assemble. Since the end faces of the optical fibers on the optical cable side are butted against each other and incorporated in the connecting member, there is no need to use fusion splicing or the like, and the assembling work can be performed without using a special tool.
【０００７】[0007]
【実施例】以下、添付の図１〜図７を参照して本発明の
実施例について説明する。なお、図面の説明において同
一要素には同一符号を付し、重複する説明を省略する。
図１〜図４は本実施例に係わるリボン状光ファイバの接
続部材を構成する部品と組み立て状態を示す斜視図であ
り、図５は図１〜図４に示した接続部材を組み立てた後
の状態を示す横断面図（ａ）及び縦断面図（ｂ）（夫々
Ａ−Ａ及びＢ−Ｂから見た図）、図６は光ファイバ接続
部材を固定する前の状態を示す横断面図（ａ）及び縦断
面図（ｂ）（夫々Ａ′−Ａ′及びＢ′−Ｂ′から見た
図）、図７はスリーブの構成を示す斜視図（ａ）、平面
図（ｂ）、正面図（ｃ）及びＣ−Ｃ断面図（ｄ）であ
る。Embodiments of the present invention will be described below with reference to the accompanying drawings 1 to 7. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description.
1 to 4 are perspective views showing the components and the assembled state of the connecting member of the ribbon-shaped optical fiber according to the present embodiment, and FIG. 5 is a view after assembling the connecting member shown in FIGS. FIG. 6 is a horizontal cross-sectional view (a) and a vertical cross-sectional view (b) (views from AA and BB, respectively) showing the state, and FIG. 6 is a cross-sectional view showing the state before fixing the optical fiber connecting member ( a) and a longitudinal sectional view (b) (views from A'-A 'and B'-B' respectively), FIG. 7 is a perspective view (a), a plan view (b), and a front view showing the structure of the sleeve. It is (c) and CC sectional drawing (d).
【０００８】図において、半円柱体の平面上に複数本の
溝１−１、１−２が軸方向に設けられ、この溝の両側か
らリボン状光ファイバ８のクラッド部を挿入し光ファイ
バの端面を突き合わせて接続するためのスリーブ１と、
スリーブ１の上面から光ファイバ８のクラッド部を押圧
する平板２と、平板２に押圧力を付与するバネ３と、ス
リーブ１の下方に位置し矢印９の軸方向に摺動可能に設
けられたテーパ面４−１を有する加圧部材４と、バネ
２、スリーブ１、平板２及び加圧部材４とを内包したハ
ウジング５とを具備し、加圧部材４をハウジングの底面
５Ｆとスリーブ１の間に挿入すると、加圧部材４はスリ
ーブ１を押し上げ、バネ３が変形し平板２を介して光フ
ァイバ８のクラッド部に押圧を与える構成の光ファイバ
接続部材である。図５、図６では図面の複雑さを避ける
ために光ファイバ８を記入していない。In the figure, a plurality of grooves 1-1 and 1-2 are provided on the plane of a semi-cylindrical body in the axial direction, and the clad portions of the ribbon-shaped optical fiber 8 are inserted from both sides of these grooves to form an optical fiber A sleeve 1 for connecting the end faces with each other,
A flat plate 2 that presses the clad portion of the optical fiber 8 from the upper surface of the sleeve 1, a spring 3 that applies a pressing force to the flat plate 2, and a sleeve that is located below the sleeve 1 and is slidable in the axial direction of arrow 9 The pressurizing member 4 having the tapered surface 4-1 and the housing 5 including the spring 2, the sleeve 1, the flat plate 2 and the pressurizing member 4 are provided, and the pressurizing member 4 includes the bottom surface 5F of the housing and the sleeve 1. When inserted in between, the pressing member 4 is an optical fiber connecting member configured to push up the sleeve 1 and deform the spring 3 to press the clad portion of the optical fiber 8 via the flat plate 2. In FIGS. 5 and 6, the optical fiber 8 is not shown in order to avoid complexity of the drawings.
【０００９】リボン状光ファイバ８はクラッド外径が１
２５μｍのガラスファイバを複数本配列し、その上に樹
脂層を施したものである。接合される光ファイバ８の端
面は鏡面に仕上げられ、溝１−１の中に挿入される。接
合面にはファイバコアの屈折率と略等しい屈折率の整合
剤が充填される。The ribbon-shaped optical fiber 8 has a cladding outer diameter of 1
A plurality of 25 μm glass fibers are arrayed and a resin layer is applied thereon. The end surface of the optical fiber 8 to be joined is mirror-finished and inserted into the groove 1-1. The joining surface is filled with a matching agent having a refractive index substantially equal to that of the fiber core.
【００１０】半円柱状のスリーブ１は、図７に示すよう
に円柱体の軸中心に沿って複数個の穴１−０があけら
れ、穴１−０の中心を通る平面で切削加工して空間１−
３、１−４が形成される。この時、穴１−０の上半分も
除去されるので、同時に溝１−１、１−２も形成され
る。 ここで、穴径は光ファイバクラッドの外径に対し
て僅か（例えば、１〜５μｍ）大きくあけられる。穴径
が大きすぎるとファイバを正確に位置決めするすること
ができくなる。スリーブがセラミック又はガラスで形成
される場合、半円柱状の空間部１−３、１−４は切削加
工及び研磨加工によって形成する。As shown in FIG. 7, the semi-cylindrical sleeve 1 is provided with a plurality of holes 1-0 along the axial center of a cylindrical body, and is cut by a plane passing through the centers of the holes 1-0. Space 1-
3, 1-4 are formed. At this time, since the upper half of the hole 1-0 is also removed, the grooves 1-1 and 1-2 are simultaneously formed. Here, the hole diameter is slightly larger than the outer diameter of the optical fiber clad (for example, 1 to 5 μm). If the hole diameter is too large, the fiber cannot be accurately positioned. When the sleeve is formed of ceramic or glass, the semi-cylindrical spaces 1-3 and 1-4 are formed by cutting and polishing.
【００１１】バネ３は光ファイバクラッドをスリーブ１
に安定に押圧するために半円筒状に構成され、青銅又は
ステンレス鋼で形成される。細長い平板状の加圧部材４
は上面にゆるやかなテーパ４−１を有し楔形に形成され
る。この加圧部材をハウジング５の中に摺動することに
よって、光ファイバのクラッド部に押圧を付与すること
ができる。加圧部材４は耐蝕性、加工性のよい９９％以
上の純度を有するアルミニウムで形成するのが好まし
い。The spring 3 covers the optical fiber cladding with the sleeve 1.
It has a semi-cylindrical shape for stable pressing and is made of bronze or stainless steel. Slender plate-shaped pressing member 4
Is formed in a wedge shape with a gentle taper 4-1 on the upper surface. By sliding this pressure member in the housing 5, pressure can be applied to the clad portion of the optical fiber. The pressure member 4 is preferably made of aluminum having a corrosion resistance and workability and a purity of 99% or more.
【００１２】ハウジング５は両端部材５Ｌ、５Ｒと側壁
部材５Ｆ、５Ｂ等で形成され、両端部材５Ｌ、５Ｒの上
面にはリボン状光ファイバ８の被覆部を把持する浅溝５
−１を備えている。ハウジング５は熱膨張係数が光ファ
イバと同等の液晶ポリマ、例えばベクトラで形成されて
いる。また、ハウジング５は一体に形成することによっ
て、組み立て作業の点で好ましい。接続されたリボン状
光ファイバ８を接続部材と機械的に一体に固定する必要
がある。そのために、光ファイバのクラッド部の外に被
覆部の部分を固定するものであり、ハウジングの両側に
は上面を覆うように蓋７Ｌ、７Ｒが設けられ、接続され
たリボン状光ファイバ８の被覆部を押圧して固定する。
蓋７Ｌ、７Ｒは一端がヒンジによって回転自在にハウジ
ング５に取り付けられる。The housing 5 is formed by both end members 5L, 5R and side wall members 5F, 5B, etc., and the upper surface of both end members 5L, 5R has a shallow groove 5 for holding the coating portion of the ribbon-shaped optical fiber 8.
-1. The housing 5 is formed of a liquid crystal polymer having a thermal expansion coefficient similar to that of an optical fiber, for example, Vectra. Further, the housing 5 is preferably formed integrally so that it can be assembled easily. It is necessary to mechanically and integrally fix the connected ribbon-shaped optical fiber 8 with the connecting member. Therefore, the covering portion is fixed to the outside of the clad portion of the optical fiber, and the lids 7L and 7R are provided on both sides of the housing so as to cover the upper surface, and the covering of the connected ribbon-shaped optical fiber 8 is performed. Press the part to fix it.
One end of each of the lids 7L and 7R is rotatably attached to the housing 5 by a hinge.
【００１３】スリーブ１を安定に保持する目的で、スリ
ーブ保持部材６に設けたくぼみ６−１の中にスリーブ１
を入れた状態で組込んでいる。この状態のスリーブ保持
部材６とハウジング５の底面との間に加圧部材４を挿入
すると、加圧部材４はスリーブ１を押し上げ、バネ３が
変形して光ファイバ８のクラッドに押圧を付与すること
によって固定する。スリーブ保持部材６の下側で加圧部
材４と接する面にも、加圧部材４のテーパ４−１と反対
方向のテーパ６−２が付いている。For the purpose of stably holding the sleeve 1, the sleeve 1 is placed in the recess 6-1 provided in the sleeve holding member 6.
It is installed with the. When the pressure member 4 is inserted between the sleeve holding member 6 and the bottom surface of the housing 5 in this state, the pressure member 4 pushes up the sleeve 1 and the spring 3 deforms to apply pressure to the clad of the optical fiber 8. To fix by. The surface of the lower side of the sleeve holding member 6 that contacts the pressing member 4 also has a taper 6-2 in the direction opposite to the taper 4-1 of the pressing member 4.
【００１４】本発明に係わる光ファイバの接続方法は、
上記の接続部材即ち、図示したように半円柱体の平面上
に複数本の溝１−１、１−２が軸方向に設けられ、この
溝の両側からリボン状光ファイバ８のクラッド部を挿入
し光ファイバの端面を突き合わせて接続するためのスリ
ーブ１と、スリーブ１の上面から光ファイバ８のクラッ
ド部を押圧する平板２と、平板２に押圧力を付与するバ
ネ３と、スリーブ１の下方に位置し矢印９の軸方向に摺
動可能に設けられたテーパ面４−１を有する加圧部材４
と、バネ３、スリーブ１、平板２及び加圧部材４とを内
包したハウジング５及びハウジングの両側上面を覆うよ
うに設けられた蓋７とを具備した光ファイバ接続部材を
準備する工程と、接続されるリボン状光ファイバ８の先
端部の被覆を除去し、端面を鏡面に処理する工程と、光
ファイバ８をスリーブ１の両側から溝１−１、１−２内
に挿入して端面を突き合わせる工程と、加圧部材４をハ
ウジング底部５Ｆと１スリーブとの間で矢印９の方向に
挿入する工程とを備え、加圧部材４をハウジング５とス
リーブ１の間に挿入することによって、加圧部材４はス
リーブ１を押し上げ、バネ３が変形して光ファイバ８の
クラッド部に押圧を与えて固定する方法である。上記の
接続方法は、従来の方法によって光ファイバの端末部の
被覆を除去し、端面を鏡面に切断処理することによって
組み立てることができるので、接続作業が簡単である。The optical fiber connection method according to the present invention is as follows.
A plurality of grooves 1-1, 1-2 are axially provided on the plane of the semi-cylindrical body as shown in the figure, and the clad portion of the ribbon-shaped optical fiber 8 is inserted from both sides of the groove. A sleeve 1 for connecting the end faces of the optical fibers to each other by abutting, a flat plate 2 for pressing the clad portion of the optical fiber 8 from the upper surface of the sleeve 1, a spring 3 for applying a pressing force to the flat plate 2, and a lower part of the sleeve 1. And a pressurizing member 4 having a tapered surface 4-1 which is located at a position and is slidable in the axial direction of arrow 9.
And a step of preparing an optical fiber connecting member including a housing 5 including a spring 3, a sleeve 1, a flat plate 2 and a pressing member 4 and a lid 7 provided so as to cover both upper surfaces of the housing, and a connection. The step of removing the coating on the tip of the ribbon-shaped optical fiber 8 and treating the end face to be a mirror surface, and inserting the optical fiber 8 into the grooves 1-1 and 1-2 from both sides of the sleeve 1 and abutting the end faces And the step of inserting the pressure member 4 between the housing bottom portion 5F and the one sleeve in the direction of the arrow 9, and by inserting the pressure member 4 between the housing 5 and the sleeve 1. The pressure member 4 is a method in which the sleeve 1 is pushed up, the spring 3 is deformed, and the cladding portion of the optical fiber 8 is pressed and fixed. The above connection method can be assembled by removing the coating of the end portion of the optical fiber by a conventional method and cutting the end face into a mirror surface, so that the connection work is simple.
【００１５】本発明の接続方法は、従来４心のリボン状
光ファイバを接続部材に組み立てるために５分以上要し
ていたが、光ファイバの被覆除去等の工程を含めて４分
以内で行なうことができた。また、接続損失は平均０．
１ｄＢ以内、−３０℃〜＋７０℃の範囲の温度サイクル
試験において、接続損失の変化は０．１ｄＢ以内であっ
た。In the connection method of the present invention, it took five minutes or more to assemble a four-core ribbon-shaped optical fiber into a connection member, but it is performed within four minutes including the steps of removing the coating of the optical fiber. I was able to. Also, the connection loss is an average of 0.
In the temperature cycle test within 1 dB and within the range of −30 ° C. to + 70 ° C., the change in connection loss was within 0.1 dB.
【００１６】[0016]
【発明の効果】以上説明したように本発明に係わる接続
部材は、スリーブの上面に設けられた溝を利用して光フ
ァイバの位置決めをするので、高精度の軸合わせを行な
うことができる。接合されたファイバ端面近傍とスリー
ブとは、テーパを有する加圧部材をハウジングの中へ摺
動しながら押し込むことによって固定され、またファイ
バ被覆部とハウジングとは両側に設けられた蓋によって
固定されるので信頼性が高く、簡単に組立てることがで
きる。光ケーブル側の光ファイバ端面同士を突き合わせ
て接続部材に組み込む方式なので、融着接続等を使用す
る必要がなく、特別の工具をしようすることなく組み立
て作業を行なうことができる。As described above, since the connecting member according to the present invention positions the optical fiber by utilizing the groove provided on the upper surface of the sleeve, it is possible to perform highly accurate axis alignment. The vicinity of the joined fiber end surface and the sleeve are fixed by sliding a pressure member having a taper into the housing while sliding, and the fiber coating portion and the housing are fixed by lids provided on both sides. So it is highly reliable and easy to assemble. Since the end faces of the optical fibers on the optical cable side are butted against each other and incorporated in the connecting member, there is no need to use fusion splicing or the like, and the assembling work can be performed without using a special tool.
【図１】本実施例に係わるリボン状光ファイバの接続部
材を構成する部品と組み立て状態を示す斜視図である。FIG. 1 is a perspective view showing components constituting a connecting member of a ribbon-shaped optical fiber according to the present embodiment and an assembled state.
【図２】本実施例に係わるリボン状光ファイバの接続部
材を構成する部品と組み立て状態を示す斜視図である。FIG. 2 is a perspective view showing a component forming a connecting member of a ribbon-shaped optical fiber according to the present embodiment and an assembled state.
【図３】本実施例に係わるリボン状光ファイバの接続部
材を構成する部品と組み立て状態を示す斜視図である。FIG. 3 is a perspective view showing a component forming a connecting member of a ribbon-shaped optical fiber and an assembled state according to the present embodiment.
【図４】本実施例に係わるリボン状光ファイバの接続部
材を構成する部品と組み立て状態を示す斜視図である。FIG. 4 is a perspective view showing a component forming a connecting member of a ribbon-shaped optical fiber according to the present embodiment and an assembled state.
【図５】光ファイバ接続部材を組み立てた後の状態を示
す断面図である。FIG. 5 is a cross-sectional view showing a state after the optical fiber connecting member is assembled.
【図６】光ファイバ接続部材を固定する前の状態を示す
断面図である。FIG. 6 is a cross-sectional view showing a state before fixing the optical fiber connecting member.
【図７】スリーブの構成を示す斜視図（ａ）、平面図
（ｂ）、正面図（ｃ）及びＣ−Ｃ断面図（ｄ）である。FIG. 7 is a perspective view (a), a plan view (b), a front view (c) and a C-C sectional view (d) showing the configuration of the sleeve.
１：スリーブ １−０：穴 １−１、１−２：溝 １−３、１−４：空間 ２：平板 ３：バネ ４：加圧部材 ４−１：テーパ面 ５：ハウジング ５−１：浅溝 ５Ｌ、５Ｒ：ハウジングの端部 ５Ｂ、５Ｆ：ハウジングの側壁 ５Ｄ、５Ｕ：固定板 ６：スリーブ保持部材 ６−１：くぼみ ６−２：テーパ面 ７：蓋 ７−１：ヒンジ用ピン ８：リボン状光ファイバ ９：矢印 1: Sleeve 1-0: Hole 1-1, 1-2: Groove 1-3, 1-4: Space 2: Flat plate 3: Spring 4: Pressure member 4-1: Tapered surface 5: Housing 5-1: Shallow groove 5L, 5R: End part of housing 5B, 5F: Side wall of housing 5D, 5U: Fixing plate 6: Sleeve holding member 6-1: Recess 6-2: Tapered surface 7: Lid 7-1: Pin for hinge 8 : Ribbon-shaped optical fiber 9: Arrow
Claims (15)
に設けられ、該溝の両側からリボン状光ファイバのクラ
ッド部を挿入し光ファイバの端面を突き合わせて接続す
るためのスリーブと、 前記スリーブの上面から前記光ファイバのクラッド部を
押圧する平板と、 前記平板に押圧力を付与するバネと、 前記スリーブの下方に位置し軸方向に摺動可能に設けら
れたテーパ面を有する加圧部材と、 前記バネ、スリーブ、平板及び加圧部材とを内包したハ
ウジングとを具備し、 加圧部材をハウジングとスリーブの間に挿入すると、加
圧部材はスリーブを押し上げ、バネが変形し平板を介し
て光ファイバのクラッド部に押圧を与えることを特徴と
する光ファイバの接続部材。1. A sleeve for axially arranging a plurality of grooves on a plane of a semi-cylindrical body, and inserting a clad portion of a ribbon-shaped optical fiber from both sides of the groove and abutting the end faces of the optical fibers for connection. A flat plate that presses the clad portion of the optical fiber from the upper surface of the sleeve; a spring that applies a pressing force to the flat plate; and a tapered surface that is located below the sleeve and that is slidable in the axial direction. It has a pressing member and a housing containing the spring, the sleeve, the flat plate and the pressing member. When the pressing member is inserted between the housing and the sleeve, the pressing member pushes up the sleeve and the spring is deformed. A connecting member for an optical fiber, characterized in that a pressure is applied to a clad portion of the optical fiber via a flat plate.
沿って複数個の穴があけられ、該穴の中心を通る平面で
切削加工して形成されたことを特徴とする請求項１に記
載の光ファイバの接続部材。2. The semi-cylindrical sleeve is formed by forming a plurality of holes along the axial center of a cylindrical body, and cutting the sleeve in a plane passing through the centers of the holes. The optical fiber connecting member according to.
数個の穴があけられ、該穴の中心を通る平面で切削加工
して形成されたことを特徴とする請求項１に記載の光フ
ァイバの接続部材。3. A plurality of grooves are formed by forming a plurality of holes along the axial center of a cylindrical body, and are formed by cutting in a plane passing through the centers of the holes. The optical fiber connecting member described.
ッドの外径に対して僅か大きいことを特徴とする請求項
２又は３に記載の光ファイバの接続部材。4. The optical fiber connecting member according to claim 2, wherein the plurality of hole diameters are slightly larger than the outer diameter of the ribbon-shaped optical fiber clad.
ことを特徴とする請求項１又は２に記載の光ファイバの
接続部材。5. The optical fiber connecting member according to claim 1, wherein the sleeve is made of ceramic or glass.
性変形することにより光ファイバを固定することを特徴
とする請求項１に記載の光ファイバの接続部材。6. The optical fiber connecting member according to claim 1, wherein the flat plate fixes the optical fiber by plastically deforming at a contact surface with the optical fiber.
ニウムであることを特徴とする請求項６に記載の光ファ
イバの接続部材。7. The optical fiber connecting member according to claim 6, wherein the flat plate is made of aluminum having a purity of 99% or more.
テンレス鋼で形成されていることを特徴とする請求項１
に記載の光ファイバの接続部材。8. The spring is formed in a semi-cylindrical shape and is made of bronze or stainless steel.
The optical fiber connecting member according to.
ァイバを把持する浅溝を備えていることを特徴とする請
求項１に記載の光ファイバの接続部材。9. The optical fiber connecting member according to claim 1, wherein shallow grooves for holding the ribbon-shaped optical fiber are provided on both upper surfaces of the housing.
いることを特徴とする請求項１又は９に記載の光ファイ
バの接続部材。10. The optical fiber connecting member according to claim 1, wherein the housing is made of liquid crystal polymer.
に蓋が設けられ、接続されたリボン状光ファイバを押圧
して固定することを特徴とする請求項１に記載の光ファ
イバの接続部材。11. The optical fiber connecting member according to claim 1, wherein lids are provided on both sides of the housing so as to cover the upper surface, and the connected ribbon-shaped optical fibers are pressed and fixed.
ハウジングに取り付けられたことを特徴とする請求項１
１に記載の光ファイバの接続部材。12. The lid has one end rotatably attached to the housing by a hinge.
1. The optical fiber connecting member according to 1.
部材がスリーブとハウジングとの間に配置され、加圧部
材をハウジングとスリーブ保持部材との間に挿入する
と、加圧部材はスリーブを押し上げ、バネが変形して光
ファイバのクラッドに押圧を与えることを特徴とする請
求項１に記載の光ファイバの接続部材。13. A sleeve holding member having a recess at the center is arranged between the sleeve and the housing, and when the pressure member is inserted between the housing and the sleeve holding member, the pressure member pushes up the sleeve, The optical fiber connecting member according to claim 1, wherein the spring deforms to apply pressure to the cladding of the optical fiber.
向に設けられ、該溝の両側からリボン状光ファイバのク
ラッド部を挿入し光ファイバの端面を突き合わせて接続
するためのスリーブと、前記スリーブの上面から前記光
ファイバのクラッド部を押圧する平板と、前記平板に押
圧力を付与するバネと、前記スリーブの下方に位置し軸
方向に摺動可能に設けられたテーパ面を有する加圧部材
と、前記バネ、スリーブ、平板及び加圧部材を内包した
ハウジング並びにハウジングの両側には上面を覆うよう
に設けられた蓋とを有する請求項１に記載の光ファイバ
接続部材を準備する工程と、 接続されるリボン状光ファイバの先端部の被覆を除去
し、端面を鏡面に処理する工程と、 前記リボン状光ファイバを前記スリーブの両側から溝内
に挿入して端面を突き合わせる工程と、 前記加圧部材を前記ハウジングと前記スリーブとの間に
挿入する工程と、 前記リボン状光ファイバを前記蓋によってハウジング上
面に固定する工程とを備え、 加圧部材をハウジングとスリーブの間に挿入することに
よって、加圧部材はスリーブを押し上げ、バネが変形し
て光ファイバのクラッド部に押圧を与えることを特徴と
する光ファイバの接続方法。14. A sleeve for axially providing a plurality of grooves on a plane of a semi-cylindrical body, and inserting a clad portion of a ribbon-shaped optical fiber from both sides of the groove and abutting the end faces of the optical fibers for connection. A flat plate for pressing the clad portion of the optical fiber from the upper surface of the sleeve; a spring for applying a pressing force to the flat plate; The optical fiber connecting member according to claim 1, further comprising: a pressure member having the same, a housing including the spring, the sleeve, the flat plate, and the pressure member, and a lid provided on both sides of the housing so as to cover an upper surface thereof. And removing the coating of the tip of the ribbon-shaped optical fiber to be connected and treating the end face to a mirror surface, and inserting the ribbon-shaped optical fiber into the groove from both sides of the sleeve. A step of butting the surfaces, a step of inserting the pressing member between the housing and the sleeve, and a step of fixing the ribbon-shaped optical fiber to the upper surface of the housing by the lid, And a sleeve, the pressing member pushes up the sleeve, and the spring deforms to apply pressure to the clad portion of the optical fiber.
同等の屈折率を有する整合剤を充填することを特徴とす
る請求項１４に記載された光ファイバの接続方法。15. The method of connecting optical fibers according to claim 14, wherein the joining surface of the optical fibers is filled with a matching agent having a refractive index equivalent to that of the optical fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30550795A JPH09145949A (en) | 1995-11-24 | 1995-11-24 | Member and method for connecting optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30550795A JPH09145949A (en) | 1995-11-24 | 1995-11-24 | Member and method for connecting optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09145949A true JPH09145949A (en) | 1997-06-06 |
Family
ID=17945995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30550795A Pending JPH09145949A (en) | 1995-11-24 | 1995-11-24 | Member and method for connecting optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09145949A (en) |
-
1995
- 1995-11-24 JP JP30550795A patent/JPH09145949A/en active Pending
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