JPH01142511A - Method for assembling connector for multi-fiber optical cable - Google Patents
Method for assembling connector for multi-fiber optical cableInfo
- Publication number
- JPH01142511A JPH01142511A JP30110087A JP30110087A JPH01142511A JP H01142511 A JPH01142511 A JP H01142511A JP 30110087 A JP30110087 A JP 30110087A JP 30110087 A JP30110087 A JP 30110087A JP H01142511 A JPH01142511 A JP H01142511A
- Authority
- JP
- Japan
- Prior art keywords
- connector
- optical fiber
- optical fibers
- core
- fibers
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 239000000835 fiber Substances 0.000 title abstract description 7
- 230000003287 optical effect Effects 0.000 title abstract 5
- 239000013307 optical fiber Substances 0.000 claims abstract description 82
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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〕
本発明は光ファイバ複数本を並設してなる多心光ファイ
バ心線用のコネクタ組立方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connector assembly method for a multi-core optical fiber core formed by arranging a plurality of optical fibers in parallel.
〔従来技術〕 −
単心光ファイバ心線をコネクタを用いて接続する方法と
しては、まず単心光ファイバ心線の先端部の被覆を適当
長剥離して、光ファイバを露出させた後、これらを単心
光ファイバ心線の長さ方向と直交する方向で切断して光
ファイバをコネクタ内に装入し、光ファイバの切断面を
コネクタの接合部に位置させて接着材又は適宜部材によ
るかしめ等によって単心光ファイバ心線をコネクタ内に
固定し、同様に接続すべきもう一方の単心光ファイバ心
線をもう一方のコネクタ内に固定し、各コネクタの接合
部を連結することによって各単心光ファイバ心線の各光
ファイバを接続する方法がある。[Prior art] - The method of connecting single-core optical fibers using a connector is to first peel off a suitable length of the coating at the tip of the single-core optical fiber to expose the optical fibers, and then Cut the single-core optical fiber in a direction perpendicular to the length direction and insert the optical fiber into the connector, position the cut surface of the optical fiber at the joint of the connector, and caulk with adhesive or an appropriate member. etc., fix the single-core optical fiber in the connector, fix the other single-core optical fiber to be connected in the same way in the other connector, and connect the joints of each connector. There is a method for connecting each optical fiber of a single-core optical fiber.
ところでこのようにして単心光ファイノ＼心線をコネク
タに固定する場合には、コネクタの端面、即ち接合面か
ら光ファイバが突出又は引込むことが結合性に影響を与
える。このため多心光ファイバ心線においてはこの問題
に加えて予め面一の４犬態になるように切断した各光フ
ァイ／ｓｌの端面が装人時の接触等によって端面の一部
が欠損したり、面一の状態がずれて固定されることが起
こり、コネクタを連結した際に各光ファイバの結合損失
にバラツキが生じるという問題がある。By the way, when a single-core optical fiber/core wire is fixed to a connector in this manner, the protrusion or retraction of the optical fiber from the end face of the connector, that is, the joint surface, affects the connectivity. For this reason, in addition to this problem, in multi-core optical fibers, the end face of each optical fiber/sl, which has been cut in advance to form 4 pieces flush with each other, may be partially damaged due to contact during installation, etc. In other cases, the optical fibers may be fixed in a state where the connectors are not flush with each other, and when the connectors are connected, there is a problem in that the coupling loss of each optical fiber varies.
本発明は斯かる事情に鑑みてなされたものであり、各光
ファイバ端面の面一状態を維持させると共に、各光ファ
イバ端面の一部欠損を防ぐために各光ファイバをコネク
タに固定し、しかる後、各光ファイバを切断することに
より各光ファイバの結合損失を均一化する多心光ファイ
バ心線用コネクタ組立方法を従供することを目的とする
。The present invention has been made in view of the above circumstances, and it fixes each optical fiber to a connector in order to maintain the flush state of the end face of each optical fiber and prevent part of the end face of each optical fiber from being damaged. An object of the present invention is to provide a method for assembling a connector for multi-core optical fibers, which equalizes the coupling loss of each optical fiber by cutting each optical fiber.
本発明に係る多心光ファイバ心線用コネクタ組立方法は
、光ファイバ複数本を並設し、一括被覆した多心光ファ
イバ心線を接続するための接合面を備えるコネクタの組
立方法において、多心光ファイバ心線の被覆を剥離して
各光ファイバの先端部を露出させ、該先端部をコネクタ
接合面より突出させた状態でコネクタに固定し、しがる
後、前記先端部を多心光ファイバ心線の長さ方向と直交
する方向に切断又は劈開することを特徴とする。The method for assembling a connector for multi-core optical fibers according to the present invention is a method for assembling a connector in which a plurality of optical fibers are arranged side by side and has a joining surface for connecting the multi-core optical fibers coated together. The coating of the cored optical fiber is peeled off to expose the tip of each optical fiber, and the tip is fixed to the connector with the tip protruding from the connector joint surface. After tying, the tip is attached to the multi-core fiber. It is characterized by cutting or cleaving in a direction perpendicular to the length direction of the optical fiber.
多心光ファイバ心線は、予めこれの先端部の被覆が剥離
され、露出された各光ファイバの先端部をコネクタの接
合面より突出させてコネクタに固定される。しかる後、
各光ファイバは多心光ファイバ心線の長さ方向と直交す
る方向に切断又は劈開され、その切断面同志は面一の状
態が維持される。The multi-core optical fibers are fixed to the connector by having the distal ends of the coated optical fibers stripped in advance, and the exposed distal ends of each optical fiber protruding from the joint surface of the connector. After that,
Each optical fiber is cut or cleaved in a direction perpendicular to the length direction of the multicore optical fiber core, and the cut surfaces are maintained flush with each other.
以下、本発明をその実施例を示す図面に基づき具体的に
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on drawings showing embodiments thereof.
第１図は本発明の実施状態を示す外観斜視図、第２図は
その一部説明図であり、多心光ファイバ心線２ａは例え
ば５本の光ファイバ２１ａの各別に１次被覆及び緩衝層
が施されたものが一層に並列されて一括して２次被覆が
施された偏平なリボン状を成している。図において１ａ
は多心光ファイバ心ＮＩＡ２ａを組込むコネクタであり
、コネクタ１ａは、夫々半円柱状の上部材５及び下部材
６より構成され、上、下部材５．６がビス等の適宜手段
によって円柱状に結合され、その結合部分の軸方向に多
心光ファイバ心線２ａを装備する空間が形成されている
。FIG. 1 is an external perspective view showing the implementation state of the present invention, and FIG. 2 is a partial explanatory view thereof. For example, a multi-core optical fiber 2a is a primary coating and a buffer for each of five optical fibers 21a. The layers are arranged in parallel and collectively coated with a secondary coating to form a flat ribbon shape. In the figure 1a
is a connector incorporating a multi-core optical fiber core NIA2a, and the connector 1a is composed of an upper member 5 and a lower member 6 each having a semi-cylindrical shape, and the upper and lower members 5.6 are shaped into a columnar shape by suitable means such as screws. A space in which the multi-core optical fibers 2a are installed is formed in the axial direction of the coupled portion.
そしてコネクタ１ａの一端部寄りの外径は少し拡径され
ており、この拡径部側の端面に多心光ファイバ心線２ａ
の接続すべき端部が配設されるように構成されている。The outer diameter of the connector 1a near one end is slightly enlarged, and a multi-core optical fiber 2a is attached to the end face of the enlarged diameter part.
The end portions to be connected are arranged so that the ends thereof are arranged.
拡径部側の端間、即ちコネクタ１ａの接合面はこれの略
中心部に位置する下部材６の上面に等脚台形状の段部１
３がコネクタ１ａの長さ方向に亘って形成され、下部材
６の先端面１４が上部材５の先端面１２より少し突出さ
せて形成されている。下部材６の前記段部工３にはＶ形
の溝１６ （第２図参照）が光ファイバ２１ａの本数分
、即ちこの場合５箇所、コネクタ１ａの長さ方向に並列
させて形成してあり、該溝１６上に各光ファイバ２１ａ
が載置されるようになっている。Between the ends on the enlarged diameter side, that is, the joint surface of the connector 1a, there is an isosceles trapezoidal stepped portion 1 on the upper surface of the lower member 6 located approximately at the center thereof.
3 is formed extending in the length direction of the connector 1a, and the distal end surface 14 of the lower member 6 is formed to protrude slightly from the distal end surface 12 of the upper member 5. V-shaped grooves 16 (see FIG. 2) are formed in the stepped portion 3 of the lower member 6 in parallel in the length direction of the connector 1a at five locations corresponding to the number of optical fibers 21a, that is, in this case. , each optical fiber 21a is placed on the groove 16.
is now placed.
また、前記段部１３には上部材５の下面に設けられた等
脚台形状の突出部が組込まれるようになっており、該突
出部には凹部１５が前記段部１３と逆向きにコネクタ１
ａの長さ方向に形成しである。該凹部１５は光ファイバ
２１ａの並設幅と略等しい横幅を有し、深さは第２図に
示すように溝１６から突出した光ファイバ高さｈと略等
しい。下部材６の先端面１４の前記段部１３の両側部分
には夫々ガイドピン１１．１１がコネクタ１ａの長さ方
向に突設されており、ガイドピン１１．１１の各軸心は
コネクタ１ａの同一直径上に位置している。Further, an isosceles trapezoidal protrusion provided on the lower surface of the upper member 5 is incorporated into the stepped portion 13, and a recessed portion 15 is formed in the protruding portion in the opposite direction to the connector. 1
It is formed in the length direction of a. The recess 15 has a width approximately equal to the width of the optical fibers 21a arranged side by side, and a depth approximately equal to the height h of the optical fiber protruding from the groove 16, as shown in FIG. Guide pins 11.11 are provided on both sides of the stepped portion 13 on the distal end surface 14 of the lower member 6, respectively, protruding in the length direction of the connector 1a, and the axis of each guide pin 11.11 is aligned with the connector 1a. located on the same diameter.
このガイドピン１１．１１は先端面１４に孔を設け、抜
き差し可能としても良く、また上部材５及び下部材６の
間に挟持させても良い。更に上部材５に設けても良く、
各軸心はコネクタｌａの同一直径上に必ずしも位置させ
る必要はない。This guide pin 11.11 may be provided with a hole in its tip surface 14 so that it can be inserted and removed, or it may be held between the upper member 5 and the lower member 6. Furthermore, it may be provided on the upper member 5,
Each axis does not necessarily need to be located on the same diameter of the connector la.
以上の如く構成された装置を用いて多心光ファイバ心＊
２．ａのコネクタｌａ組立方法について説明する。Using the device configured as described above, a multi-core optical fiber core*
2. The method for assembling the connector la of a will be explained.
まず、多心光ファイバ心線２ａは先端部より適当長、１
次被覆、緩衝層及び２次被覆を剥離しておき、各光ファ
イバ２１ａを露出させた状態でコネクタ接合面に組込む
。First, the multi-core optical fiber 2a has an appropriate length from the tip end.
The secondary coating, buffer layer, and secondary coating are peeled off, and each optical fiber 21a is assembled into the connector joint surface in an exposed state.
そして多心光ファイバ心線２ａの各光ファイバ２１ａの
先端部を前記上部材５の凹部１５から前方へ突出させて
各光ファイバ２１ａの下側周面を下部材６の溝１６上に
載置させる。この場合、各光ファイバ２１ａの軸心は前
記ガイドピン１１，１１の各軸心と同一平面上にあり、
中央の光ファイバ２１ａの軸心はコネクタ１ａの軸心と
も一致している。Then, the tip of each optical fiber 21a of the multi-core optical fiber core 2a is projected forward from the recess 15 of the upper member 5, and the lower peripheral surface of each optical fiber 21a is placed on the groove 16 of the lower member 6. let In this case, the axis of each optical fiber 21a is on the same plane as the axis of each guide pin 11, 11,
The axis of the central optical fiber 21a also coincides with the axis of the connector 1a.
次にこの状態で多心光ファイバ心線２ａの２次被覆部分
を接着剤又は上部材５及び下部材６の間に閲持させる等
の適宜の方法によってコネクタ１ａに固定する。Next, in this state, the secondary coating portion of the multi-core optical fiber core wire 2a is fixed to the connector 1a by an appropriate method such as adhesive or by holding it between the upper member 5 and the lower member 6.
さて、多心光ファイバ心線２ａをコネクタ１ａに固定し
た後は、カッタ３を上部材５の先端面１２に沿わして矢
符方向へ摺動させ、先端面１２の前記凹部１５より突出
している各光ファイバ２１ａを各光ファイバ２１ａの長
さ方向と直交する方向で切欠き傷を加えて折り取る、即
ち劈開する。なお、これを劈開に代えて切断によって行
っても良く、その場合には光ファイバを切断する載置部
分は溝ではなく平坦面であることが望ましい。Now, after fixing the multi-core optical fiber core 2a to the connector 1a, the cutter 3 is slid along the tip surface 12 of the upper member 5 in the direction of the arrow to protrude from the recess 15 of the tip surface 12. Each of the optical fibers 21a is cut out in a direction perpendicular to the length direction of each optical fiber 21a and broken off, that is, cleaved. Note that this may be performed by cutting instead of cleaving, and in that case, it is preferable that the mounting portion on which the optical fiber is cut is a flat surface rather than a groove.
第３図は上述の如くコネクタＩｂ内に組込まれた多心光
ファイバ心線２ａと全く同様にしてコネクタＩｂ内に組
込まれた多心光ファイバ心線２ｂとの連結状態を示す一
部破断側面図である。FIG. 3 is a partially broken side view showing the state of connection between the multi-core optical fiber 2a incorporated into the connector Ib as described above and the multi-core optical fiber 2b incorporated into the connector Ib in exactly the same manner. It is a diagram.
コネクタ１ｂにはコネクタ１ａのガイドピン１１．１１
が夫々挿入される図示しないガイドピン挿入孔が同軸上
に設けられており、これらによりコネクタ１ａ及びｌｂ
を連結させ、各光ファイバ２１ａと２１ｂとの切断面同
志を同軸上に間隙を隔てて対向させる。Connector 1b has guide pins 11 and 11 of connector 1a.
Guide pin insertion holes (not shown) into which the connectors 1a and lb are inserted are provided coaxially, and these allow the connectors 1a and lb
are connected, and the cut surfaces of each optical fiber 21a and 21b are coaxially opposed to each other with a gap in between.
そしてこの間隙にシリコン等からなる整合剤４を充填し
、各光ファイバ２１ａ及び２１ｂの接続を完全にする。This gap is then filled with a matching agent 4 made of silicon or the like to complete the connection between each optical fiber 21a and 21b.
なお、本実施例では段部１３を設けるコネクタを用いた
ものを示したが、この段部１３を設けず、例えば光ファ
イバを固定して後、カッタをコネクタ側に傾斜させて当
接させ、コネクタ端部の一部も切り取る如くして光ファ
イバに切欠きをつけ、しかる後、劈開しても良い。In this embodiment, a connector provided with a stepped portion 13 is shown, but without providing this stepped portion 13, for example, after fixing the optical fiber, the cutter is tilted toward the connector and brought into contact with the connector. The optical fiber may be notched by cutting off a portion of the connector end, and then cleaved.
また、本実施例において、コネクタは上、下の２部材よ
りなる形状のものを示したが、本発明はこれに限定され
るものではなく、例えば一体型の筒状のものでも全く同
様に適用可能である。In addition, in this embodiment, the connector has a shape consisting of two members, an upper and a lower part, but the present invention is not limited to this, and the present invention can also be applied to a one-piece cylindrical connector, for example. It is possible.
以上の如く、本発明においては多心光ファイバ心線の各
光ファイバをコネクタの接合面より突出させてコネクタ
に固定した後に、各光ファイバを切断するので、各光フ
ァイバは切断面が多心光ファイバ心線の長さ方向と直交
する方向に面一の状態で固定されている。As described above, in the present invention, each optical fiber of the multi-core optical fiber core is made to protrude from the joint surface of the connector and is fixed to the connector, and then each optical fiber is cut, so that the cut surface of each optical fiber is multi-core. It is fixed flush in a direction perpendicular to the length direction of the optical fiber.
これによりコネクタ同志を連結した場合に各光ファイバ
は面一の状態で正確に軸心が一致して対向するので結合
損失はバラつかず、均一になる等、本発明は優れた効果
を奏する。As a result, when the connectors are connected, the optical fibers face each other in a flush state with their axes accurately aligned, so that the coupling loss does not vary and becomes uniform, and the present invention has excellent effects.
第１図は本発明に係る多心光ファイバ心線用コネクタ組
立方法の１実施状態を示す外観斜視図、第２図はその一
部説明図、第３図はコネクタの連結状態を示す一部破断
側面図である。
ｌａ、 ｌｂ・・・コネクタ ２ａ、２ｂ・・・多心光
ファイバ心線 ３・・・カッタ ４・・・整合剤 １１
・・・ガイドピン１６・・・ｍ ２１ａ、２１ｂ・・
・光ファイバ特 許 出願人 三菱電線工業株式会社
外１名Fig. 1 is an external perspective view showing one implementation state of the multi-core optical fiber connector assembly method according to the present invention, Fig. 2 is a partial explanatory view thereof, and Fig. 3 is a part showing a connected state of the connector. FIG. la, lb... Connector 2a, 2b... Multi-core optical fiber core 3... Cutter 4... Matching agent 11
...Guide pin 16...m 21a, 21b...
・Optical fiber patent applicant: 1 person other than Mitsubishi Cable Industries, Ltd.
Claims (1)
ァイバ心線を接続するための接合面を備えるコネクタの
組立方法において、 多心光ファイバ心線の被覆を剥離して各光 ファイバの先端部を露出させ、該先端部をコネクタ接合
面より突出させた状態でコネクタに固定し、しかる後、
前記先端部を多心光ファイバ心線の長さ方向と直交する
方向に切断又は劈開すること を特徴とする多心光ファイバ心線用コネク タ組立方法。[Claims] 1. A method for assembling a connector having a joint surface for connecting a plurality of optical fibers arranged in parallel and collectively coated multi-core optical fibers, comprising: The tip of each optical fiber is exposed by peeling, and the tip is fixed to the connector with the tip protruding from the connector joint surface, and then,
A method for assembling a multi-core optical fiber connector, characterized in that the tip end portion is cut or cleaved in a direction perpendicular to the longitudinal direction of the multi-core optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30110087A JPH01142511A (en) | 1987-11-27 | 1987-11-27 | Method for assembling connector for multi-fiber optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30110087A JPH01142511A (en) | 1987-11-27 | 1987-11-27 | Method for assembling connector for multi-fiber optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142511A true JPH01142511A (en) | 1989-06-05 |
Family
ID=17892853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30110087A Pending JPH01142511A (en) | 1987-11-27 | 1987-11-27 | Method for assembling connector for multi-fiber optical cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142511A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5390267A (en) * | 1991-08-21 | 1995-02-14 | The Furukawa Electric Co., Ltd. | Optical fiber/terminal connecting device |
| JP2002189144A (en) * | 2000-12-20 | 2002-07-05 | Fujikura Ltd | Two-fiber fiber collimator and optical multiplexer/ demultiplexer |
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|---|---|---|---|---|
| JPS5949510A (en) * | 1982-09-16 | 1984-03-22 | Furukawa Electric Co Ltd:The | Multicored connector for optical cable |
| JPS59181312A (en) * | 1983-03-10 | 1984-10-15 | アライド・コ−ポレイシヨン | Termination of internal fiber core of optical fiber cable atjunction end of optical fiber connector |
| JPS629217B2 (en) * | 1981-10-02 | 1987-02-27 | Mitsubishi Electric Corp | |
| JPS6258403B2 (en) * | 1979-04-04 | 1987-12-05 | Glaenzer Spicer Sa |
-
1987
- 1987-11-27 JP JP30110087A patent/JPH01142511A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6258403B2 (en) * | 1979-04-04 | 1987-12-05 | Glaenzer Spicer Sa | |
| JPS629217B2 (en) * | 1981-10-02 | 1987-02-27 | Mitsubishi Electric Corp | |
| JPS5949510A (en) * | 1982-09-16 | 1984-03-22 | Furukawa Electric Co Ltd:The | Multicored connector for optical cable |
| JPS59181312A (en) * | 1983-03-10 | 1984-10-15 | アライド・コ−ポレイシヨン | Termination of internal fiber core of optical fiber cable atjunction end of optical fiber connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5390267A (en) * | 1991-08-21 | 1995-02-14 | The Furukawa Electric Co., Ltd. | Optical fiber/terminal connecting device |
| JP2002189144A (en) * | 2000-12-20 | 2002-07-05 | Fujikura Ltd | Two-fiber fiber collimator and optical multiplexer/ demultiplexer |
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