JPH0338604A - Connector of optical fiber and production thereof - Google Patents
Connector of optical fiber and production thereofInfo
- Publication number
- JPH0338604A JPH0338604A JP17290289A JP17290289A JPH0338604A JP H0338604 A JPH0338604 A JP H0338604A JP 17290289 A JP17290289 A JP 17290289A JP 17290289 A JP17290289 A JP 17290289A JP H0338604 A JPH0338604 A JP H0338604A
- Authority
- JP
- Japan
- Prior art keywords
- glass capillary
- matching agent
- slits
- center
- substrate
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 239000011521 glass Substances 0.000 claims abstract description 71
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 23
- 239000000835 fiber Substances 0.000 abstract description 21
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 239000004519 grease Substances 0.000 abstract description 2
- 229920001296 polysiloxane Polymers 0.000 abstract description 2
- 238000004026 adhesive bonding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable 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
- G02B6/382—Dismountable 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 index-matching medium between light guides
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ガラス毛＃１管を用いた光ファイバの接続具
における上記ガラス毛細管の改良及び接続具の組立、加
工方法に関するものであり１毛細管内における光ファイ
バ端内の接合部における接続損失を軽減すること、その
ための接続具の加工、組立の簡易化を図ることを可能に
するものであって、単心、多心のいずれの光ファイバの
接続にも利用できるものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement of the glass capillary #1 in an optical fiber connector using a glass capillary #1 tube, and a method for assembling and processing the connector. This makes it possible to reduce splice loss at the joint within the end of an optical fiber in a capillary tube, and to simplify the processing and assembly of connectors for this purpose. It can also be used for fiber connections.
【従来技術及び課題］
ガラス毛細管を用いた光ファイバ接続具それ自体は従来
公知である。この従来技術の概要を第１図を参照しつつ
説明する。[Prior Art and Problems] Optical fiber connectors using glass capillaries are known per se. An overview of this prior art will be explained with reference to FIG.
ガラス毛細管を用いた光ファイバ接続具は、高さが２．
５ｍｍ、巾が４ ｍ ｍ 、長さが３０ｍｍ１Ｉ！度の
比較的細くして短かいプ゛ラスチック！１２基板Ｊと、
上１Ｍ２とガラス毛細管３とからなり、基板１の上面中
央に光ファイバをガラス毛細管に押入する際、容易に押
入可能なようにガイドとしてＶ溝４が設けられている。The optical fiber connector using a glass capillary has a height of 2.
5mm, width 4mm, length 30mm1I! Relatively thin and short plastic! 12 board J,
It consists of a top 1M2 and a glass capillary tube 3, and a V-groove 4 is provided at the center of the top surface of the substrate 1 as a guide so that the optical fiber can be easily pushed into the glass capillary tube.
この例においては■溝４は二本設けられている。ガラス
毛細管３の内径は、光ファイバ線径が１２５μｍのもの
であるときに１２６μｍ”１２７μｍのものが用いられ
る。In this example, two grooves 4 are provided. The inner diameter of the glass capillary tube 3 is 126 μm and 127 μm when the optical fiber diameter is 125 μm.
光ファイバテープ芯線Ｔのファイバｆをガラス毛細管３
の両端から挿入して、ガラス毛細管の中で当接させて、
ファイバをガラス毛細管に接着し。The fiber f of the optical fiber tape core wire T is connected to the glass capillary tube 3
Insert from both ends of the glass capillary tube,
Glue the fiber into a glass capillary.
ガラス毛細管をＶ溝４に嵌めて接着し、さらにファイバ
ｆｔ＆Ｖ溝４に、ファイバテープ芯線Ｔを基板に接着し
、さらに上蓋２を基板に嵌めて接着することによって、
左右の光ファイバテープ芯ａＴ、Ｔと基板ｌと上蓋２と
が一体に結合される。このものにおいては、ファイバｆ
の突合せ端面に空気層が介在し、この空気層によるフレ
ネル反射を生じ伝送損失が大きくなる。従来技術におい
ては、ガラス毛細管の端面から注射羽によって整合剤を
注入して後、ファイバを押入してその端面に整合剤を付
着させることによって上記の空気層の介在を防いでいる
。しかし、光ファイバ線径が１２５μｍのときガラス毛
細管内径が１２６μｒｎ ” １２７μｍというように
ガラス毛却■−管とファイバとは密に嵌合されるもので
あるため、ガラス毛細管内の空気がスムーズに抜けにく
い、そのためにファイバ端面に付着させた整合剤に空気
が混入することを完全には貼止することはできないこと
がある。By fitting the glass capillary tube into the V groove 4 and gluing it, further gluing the fiber tape core wire T to the substrate in the fiber ft & V groove 4, and further fitting and gluing the top cover 2 to the substrate,
The left and right optical fiber tape cores aT, T, the substrate 1, and the upper cover 2 are integrally coupled. In this one, the fiber f
An air layer exists between the abutting end faces of the two, and this air layer causes Fresnel reflection, increasing transmission loss. In the prior art, the above-mentioned air layer is prevented by injecting a matching agent from the end face of a glass capillary tube using an injection feather, and then inserting a fiber into the glass capillary tube and attaching the matching agent to the end face. However, when the diameter of the optical fiber is 125 μm, the inner diameter of the glass capillary is 126 μm or 127 μm, so the glass capillary tube and fiber are tightly fitted, so the air inside the glass capillary can escape smoothly. Therefore, it may not be possible to completely prevent air from entering the matching agent attached to the fiber end face.
またガラス毛細管の内径は注射針より細いので。Also, the inner diameter of a glass capillary is smaller than that of a syringe needle.
ガラス毛細管端面への整合剤の注入作業は容易でない、
またガラス毛細管を基板に接着させた状態では、注射針
の方が太いのでガラス毛細管に整合剤を注入することが
できない。したがって、ファイバを押入して後ガラス毛
８１管を基板のＶ溝に接着するという作業手順を採用せ
ざるを得す、非常に作業性が悪いという問題がある。Injecting a matching agent into the end face of a glass capillary is not easy.
Furthermore, when the glass capillary is adhered to the substrate, the matching agent cannot be injected into the glass capillary because the injection needle is thicker. Therefore, it is necessary to adopt a working procedure in which the fiber is pushed in and then the glass capillary tube 81 is bonded to the V-groove of the substrate, which poses a problem of extremely poor workability.
請求項１記載の第１ｔｉ目の発明は、ガラス毛細管をＶ
溝に接着して後整合剤をガラス毛細管内に注入すること
を可能にして１作業性を向上させることをその課題とし
、請求項２記載の第２番目の発明は、ガラス毛細管の基
板への組付け、加工を簡単、容易にすることをその課題
どするものである。The first aspect of the invention according to claim 1 is that the glass capillary is made of V.
The object of the present invention is to improve the workability by making it possible to inject a matching agent into the glass capillary after bonding it to the groove, and the second invention as set forth in claim 2 is to improve workability by making it possible to inject a matching agent into the glass capillary after bonding to the groove. The objective is to make assembly and processing simple and easy.
［４９Ｂ 成］
（ｉ）第ｔｍ目の発明の解決手段
（イ）ガラス毛細管の上面中央及び上面両端部にそれぞ
れ横方向スリットを設けたこと、（ロ）ガラス毛細管を
基板上面のＶ ｔｆｌｔの中央に接着したこと。[49B Formation] (i) Means for solving the tm-th invention (a) Horizontal slits are provided at the center of the top surface of the glass capillary tube and at both ends of the top surface, respectively; (b) The glass capillary tube is placed at the center of V tflt on the top surface of the substrate. that it was glued to.
［作 用］
基板に固定したガラス毛細管の両端部のスリットに注射
針を上から挿入することによってガラス毛細管に整合剤
を注入することができる。したがって整合剤のガラス毛
細管両端部への注入は極めて簡単、容易である。整合剤
注入後にファイバの端部をガラス毛細管の両端から挿入
すると、ガラス毛細管内の空気が中央のスリン１〜から
排出され、注入された整合剤の余分もこのスリットから
排出される。したがってガラス毛細管内の空気がスムー
ズに、かつ完全に排出されるので、空気がファイバ当接
面の間に介在することを完全に防止することができる。[Function] A matching agent can be injected into the glass capillary by inserting an injection needle from above into the slits at both ends of the glass capillary fixed to the substrate. Therefore, it is extremely simple and easy to inject the matching agent into both ends of the glass capillary. When the ends of the fiber are inserted from both ends of the glass capillary tube after the matching agent is injected, the air in the glass capillary tube is discharged from the central Surin 1 and the excess of the injected matching agent is also discharged from the slits. Therefore, the air in the glass capillary tube is smoothly and completely discharged, so that air can be completely prevented from intervening between the fiber contact surfaces.
［構 成］ （ｉｔ）第２番目の発明の解決手段 （イ）基板のＶ溝にガラス毛細管を接着すること。[composition] (it) Means for solving the second invention (a) Gluing a glass capillary tube to the V-groove of the substrate.
（ロ）基板に接着されたガラス毛細管の中央及び上面両
端部に切削加工して横方向スリットを形成すること。(b) Cutting the center and both ends of the top surface of the glass capillary bonded to the substrate to form a lateral slit.
［作 用］
スリットが形成されていないガラス毛細管を基板Ｖ溝に
嵌めて固定するので、スリットが形成されているものを
、スリットを上向きにして固定する場合に比して５その
固定作業は極めて簡単、容易である（内径１２６μｍ〜
１２７μｍの透明な毛細管を、スリットを正確に上向き
にして固定することは極めて困難で神経を使う手作業で
ある）。[Function] Since a glass capillary tube without a slit is fitted into the V-groove of the substrate and fixed, the fixing work is much easier than fixing a capillary tube with a slit with the slit facing upward. Simple and easy (inner diameter 126 μm ~
Fixing a 127 μm transparent capillary tube with the slit facing upwards is extremely difficult and requires manual labor.)
基板に固定しておいてガラス毛細管にカッター（例えば
回転する円盤状砥石）によってその上面三箇所にスリッ
トを形成することは極めて単純で。It is extremely simple to fix the glass capillary to a substrate and then use a cutter (for example, a rotating disk-shaped grindstone) to form slits in three places on the top surface of the glass capillary.
簡単な作業である。It's an easy task.
したがって、ガラス毛細管の基板への組付け。Hence, the assembly of glass capillaries onto the substrate.
加工を極めて簡単、容易に行うことができる。Processing is extremely simple and easy.
［実 施 例］
第１図、第２図、第３図を参照しつつ本発明の一実施例
を説明する。[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1, 2, and 3.
基板ｌ、蓋板２の構造、ガラス毛細管３の配置は従来技
術の項において説明したとおりである。The structure of the substrate 1, the cover plate 2, and the arrangement of the glass capillary tube 3 are as explained in the section of the prior art.
ガラス毛細管３の上面中央に横方向スリットＳｌを設け
、上面両端に横方向スリットＳ、、Ｓ、をそれぞれ設け
ている。このスリットの巾すは最低注射針を押入できる
巾でなければならない、スリットの深さＬはガラス毛細
管の１／２以下でよい。A lateral slit Sl is provided at the center of the upper surface of the glass capillary tube 3, and lateral slits S, , S, are provided at both ends of the upper surface. The width of this slit must be at least as wide as the injection needle can be inserted into, and the depth L of the slit may be 1/2 or less of the glass capillary.
ガラス毛細管を基板ｌのＶ ｒＲ４に嵌めて接着してお
いてファイバを押入するので、その押入を容易にするた
めに、ガラス毛細管３の両端内面をテーパー面Ｓにする
。ガラス毛細管をそのスリット８１〜Ｓ、を上向きにし
てＶ溝に固定しておいて。Since the glass capillary tube is fitted and bonded to the VrR4 of the substrate 1 and the fiber is pushed in, the inner surfaces of both ends of the glass capillary tube 3 are made into tapered surfaces S to facilitate the insertion. The glass capillary tube is fixed in the V groove with its slits 81 to S facing upward.
両端のスリットＳ、、Ｓ、にその」−から整合剤（シリ
コンを主成分とするマツチングオイル、グリス等）を注
入または塗市する。その後両端からファイバを仲人する
と、スリット内に詰められた整合剤がファイバ先端によ
ってガラス毛細管３の中央へ押され、中央のスリットＳ
１から外へ押し出される。整合剤が付着したファイバｆ
の先端がガラス毛細管３中火において当接して接合され
る。A matching agent (matching oil, grease, etc. mainly composed of silicone) is injected or coated into the slits S, S, and S at both ends. After that, when the fiber is connected from both ends, the matching agent packed in the slit is pushed by the fiber tip to the center of the glass capillary tube 3, and the center slit S
Pushed out from 1. Fiber f with matching agent attached
The tips of the glass capillary tube 3 are brought into contact and joined at medium heat.
ガラス毛細管をスリットを形成しないままで■溝４に接
着して後、回転する円盤砥石によってガラス毛細管を切
削加工して三つのスリットＳ８、Ｓ２．Ｓ、を形成する
。基板１の両側部上端に形成されている三つのスリン１
〜４′は」二記のガラス毛細管に対する切削加工時に砥
石によって切削された傷を示したものであって、特別の
技術的意義を有するものではない。After gluing the glass capillary to the groove 4 without forming a slit, the glass capillary is cut using a rotating disk grindstone to form three slits S8, S2. form S. Three sulins 1 formed on the upper ends of both sides of the substrate 1
4' indicates the scratches cut by the grindstone during the cutting process on the glass capillary described in 2 above, and does not have any particular technical significance.
ファイバｆをガラス毛細管に仲人して後、上蓋２を被ぶ
せ、ファイバｆ、上蓋を基板に接着して固定する点等の
その余の事項については従来技術と変わるところはない
。There is no difference from the prior art in other respects, such as attaching the fiber f to the glass capillary tube, covering it with the top cover 2, and gluing and fixing the fiber f and the top cover to the substrate.
［効 果］ 本発明の課題は新規な課題である。したがって。[effect] The problem of the present invention is a novel problem. therefore.
この課題を解決して前記従来技術の問題を解消したこと
自体が大発明特有の効果である。Solving this problem and eliminating the problems of the prior art is itself an effect unique to the great invention.
また、第１ｆｆｉ目の発明については、ガラス毛細管内
に注入された整合剤がガラス毛細管内を移動して、中央
のスリットから押し出されるので、万一ガラス毛細管内
に微細な異物が残っていても整合剤とともに外に排出さ
れるので、ファイバ端面に微細な異物が介在する可能性
はゼロであるという効果を生じる、
さらに第２番目の発明については、整合剤を注入する前
に基板のＶ溝にガラス毛細管を接着するので、注入して
後接着する場合は整合剤がガラス毛細管の接着面に付着
して、接着不良を生じる可能性があるが、本第２番目の
発明においては全くそのような可能性はない。In addition, regarding the 1st ffi invention, the matching agent injected into the glass capillary moves within the glass capillary and is pushed out through the central slit, so even if minute foreign matter remains in the glass capillary, Since the matching agent is discharged to the outside together with the matching agent, there is no possibility of fine foreign matter intervening on the fiber end face. Since the glass capillary is bonded to the glass capillary, if the matching agent is injected and then bonded, there is a possibility that the matching agent will adhere to the bonding surface of the glass capillary, resulting in defective bonding. However, in the second invention, this is not the case at all. There is no possibility.
【図面の簡単な説明】
第１図は本発明の一実施例の斜視図、第２図は同実施例
におけるガラス毛細管の平面図及び側面図、第３図は第
２図におけるガラス毛細管の一部拡大図である。
図中、１・・・基板、２・・・蓋板、３・・・ガラス毛
細管、４・・・Ｖｉｌｌ！、 ４’ ・・・スリット
、Ｔ・・・光ファイバテープ芯線、ｆ・・・ファイバ、
Ｓｉ、 Ｓ２． Ｓ、・・・横方向スリット、Ｓ・・
・テーパー面、ｂ・・・スリン１−のｉ＋、ｔ。
・・・スリットの深さ である。[Brief Description of the Drawings] Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a plan view and side view of a glass capillary in the same embodiment, and Fig. 3 is an illustration of the glass capillary in Fig. 2. It is an enlarged view of the part. In the figure, 1...Substrate, 2...Lid plate, 3...Glass capillary, 4...Vill! , 4'...Slit, T...Optical fiber tape core wire, f...Fiber,
Si, S2. S... horizontal slit, S...
- Tapered surface, b...i+, t of Surin 1-. ...The depth of the slit.
Claims (2)
横方向スリットを設け、上記ガラス毛細管をそのスリッ
トを上方にして基板上面のＶ溝の中央に接着した、光フ
ァイバ接続具。(1) An optical fiber connector in which a lateral slit is provided at the center of the upper surface of a glass capillary tube and at both ends of the upper surface thereof, and the glass capillary tube is bonded to the center of a V-groove on the upper surface of a substrate with the slit facing upward.
ス毛細管の上面中央及び上面両端部に、切削加工して横
方向スリットを形成することを特徴とする光ファイバ接
続具の製造方法。(2) A method for manufacturing an optical fiber connector, which comprises bonding a glass capillary to a V-groove of a substrate, and then cutting the glass capillary to form a lateral slit at the center of the upper surface and at both ends of the upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1172902A JPH087307B2 (en) | 1989-07-06 | 1989-07-06 | Optical fiber connector and method for manufacturing optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1172902A JPH087307B2 (en) | 1989-07-06 | 1989-07-06 | Optical fiber connector and method for manufacturing optical fiber connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0338604A true JPH0338604A (en) | 1991-02-19 |
| JPH087307B2 JPH087307B2 (en) | 1996-01-29 |
Family
ID=15950458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1172902A Expired - Fee Related JPH087307B2 (en) | 1989-07-06 | 1989-07-06 | Optical fiber connector and method for manufacturing optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087307B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0903594A1 (en) * | 1997-09-18 | 1999-03-24 | PIRELLI CAVI E SISTEMI S.p.A. | Method for performing fixing inside a container for optical connection components |
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| JPS5317744A (en) * | 1976-07-31 | 1978-02-18 | Showa Electric Wire & Cable Co | Connecting section of optical fiber and method of forming the same |
| JPS63173206U (en) * | 1987-04-30 | 1988-11-10 | ||
| JPH01310312A (en) * | 1988-06-09 | 1989-12-14 | Tokyo Electric Power Co Inc:The | Simultaneous connection method for multifiber optical fiber |
| JPH0228603A (en) * | 1988-07-19 | 1990-01-30 | Furukawa Electric Co Ltd:The | Optical fiber connector |
| JPH02107105U (en) * | 1989-02-10 | 1990-08-27 |
-
1989
- 1989-07-06 JP JP1172902A patent/JPH087307B2/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50109643U (en) * | 1974-02-16 | 1975-09-08 | ||
| JPS5291055U (en) * | 1975-12-27 | 1977-07-07 | ||
| JPS5317744A (en) * | 1976-07-31 | 1978-02-18 | Showa Electric Wire & Cable Co | Connecting section of optical fiber and method of forming the same |
| JPS63173206U (en) * | 1987-04-30 | 1988-11-10 | ||
| JPH01310312A (en) * | 1988-06-09 | 1989-12-14 | Tokyo Electric Power Co Inc:The | Simultaneous connection method for multifiber optical fiber |
| JPH0228603A (en) * | 1988-07-19 | 1990-01-30 | Furukawa Electric Co Ltd:The | Optical fiber connector |
| JPH02107105U (en) * | 1989-02-10 | 1990-08-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0903594A1 (en) * | 1997-09-18 | 1999-03-24 | PIRELLI CAVI E SISTEMI S.p.A. | Method for performing fixing inside a container for optical connection components |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087307B2 (en) | 1996-01-29 |
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