JPH0627889B2 - Multi-fiber / single-fiber conversion unit for optical fiber tape - Google Patents

Multi-fiber / single-fiber conversion unit for optical fiber tape

Info

Publication number
JPH0627889B2
JPH0627889B2 JP60124854A JP12485485A JPH0627889B2 JP H0627889 B2 JPH0627889 B2 JP H0627889B2 JP 60124854 A JP60124854 A JP 60124854A JP 12485485 A JP12485485 A JP 12485485A JP H0627889 B2 JPH0627889 B2 JP H0627889B2
Authority
JP
Japan
Prior art keywords
optical fiber
core
tape
fiber
conversion unit
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.)
Expired - Lifetime
Application number
JP60124854A
Other languages
Japanese (ja)
Other versions
JPS61282807A (en
Inventor
直志 袴田
俊昭 柿井
康雄 浅野
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.)
Sumitomo Electric Industries Ltd
Original Assignee
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP60124854A priority Critical patent/JPH0627889B2/en
Publication of JPS61282807A publication Critical patent/JPS61282807A/en
Publication of JPH0627889B2 publication Critical patent/JPH0627889B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G02B6/3873Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
    • G02B6/3874Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
    • G02B6/3878Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules comprising a plurality of ferrules, branching and break-out means

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は複数の光ファイバ心線を整列した光ファイバテ
ープを単心に光ファイバ心線に分岐する多心/単心変換
部に関する。
Description: TECHNICAL FIELD The present invention relates to a multi-core / single-core conversion unit for branching an optical fiber tape in which a plurality of optical fiber cores are aligned into a single fiber.

(従来の技術) 近年情報伝達能力にすぐれた光ファイバケーブルの布設
が急速に進められており、既に電話局間を結すぶ幹線ケ
ーブルは殆んど光ファイバケーブルとなっている。そし
て将来電話局から各家庭、即ち各加入者とも光ファイバ
ケーブルで結ぶ計画が進められている。
(Prior Art) In recent years, laying of optical fiber cables excellent in information transmission capability has been rapidly advanced, and the trunk cables connecting the telephone offices are almost all optical fiber cables. In the future, plans are being made to connect each home, that is, each subscriber, from the telephone station with an optical fiber cable.

電話局と各加入者を結ぶ加入者用光ファイバケーブル
は、光ファイバ心線の数が各加入者の数だけ必要なこと
から膨大数にのぼることから高密度化ということが必須
であり、加入者用光ファイバケーブルは光ファイバテー
プと呼ばれる光ファイバ心線の複数心を整列させた多心
構造のものが用いられる。
The optical fiber cable for subscribers that connects the central office and each subscriber requires a high density because the number of optical fiber cores is as large as the number of each subscriber, which is enormous. An optical fiber cable for use by a person has a multi-core structure called an optical fiber tape in which a plurality of optical fiber cores are aligned.

第3図は光ファイバテープ(1)の基本構造の横断面図
で、5心入りのものを示している。図面において、(2)
は光ファイバ心線を示し、光ファイバガラス部(201)の
周上に1次被覆層(202)及び2次被覆層(203)を具えてい
る。これらの光ファイバ心線(2)の複数心、例えば5心
を整列した外周上にはテープ被覆部(3)が設けられて光
ファイバテープ(1)を構成している。このような光ファ
イバテープ(1)の各部の寸法は、光ファイバ心線(2)の2
次被覆の外径(a)が0.3mm、各心線(2)の整列ピッチ(b)
が0.3mm、光ファイバテープ幅(C)が1.6mm、光ファイバ
テープ厚み(d)が0.4mmである。
FIG. 3 is a cross-sectional view of the basic structure of the optical fiber tape (1), showing a 5-fiber type. In the drawing, (2)
Shows an optical fiber core wire, and is provided with a primary coating layer (202) and a secondary coating layer (203) on the circumference of the optical fiber glass part (201). The optical fiber tape (1) is constructed by providing a tape coating portion (3) on the outer periphery where a plurality of cores (for example, five cores) of these optical fiber core wires (2) are aligned. The dimensions of each part of such an optical fiber tape (1) are the same as those of the optical fiber core wire (2).
Outer diameter (a) of the next coating is 0.3 mm, pitch of each core wire (2) (b)
Is 0.3 mm, the optical fiber tape width (C) is 1.6 mm, and the optical fiber tape thickness (d) is 0.4 mm.

上述の光ファイバテープ(1)を単心の光ファイバ心線に
変換する方法としては次の2通りの方法が採用されてき
た。
The following two methods have been adopted as methods for converting the above-mentioned optical fiber tape (1) into a single-core optical fiber core wire.

第5図及び第6図は従来の光ファイバテープの多心/単
心変換構造の概要縦断面図で、第5図はコネクタによる
変換、第6図は融着接続による変換構造である。
FIGS. 5 and 6 are schematic vertical sectional views of a conventional multi-fiber / single-fiber conversion structure for an optical fiber tape. FIG. 5 shows a conversion by a connector and FIG. 6 shows a conversion structure by fusion splicing.

第5図は光ファイバテープ(1)の被覆を除去して露出さ
せた光ファイバガラス部(21)を一定間隔で整列させたコ
ネクタフェルール(22)と、1端に単心フェルール(25)が
取付けられた複数の単心光ファイバ心線(23)の光ファイ
バガラス部(21′)を整列させたコネクタフェルール(24)
を嵌合筒(26)中に嵌合させ、スプリング(27)(27′)を介
して上記嵌合筒(26)を押えねじ(28)(28′)により締着し
て結合させたものである。
FIG. 5 shows a connector ferrule (22) in which the optical fiber glass part (21) exposed by removing the coating of the optical fiber tape (1) is aligned at regular intervals and a single-core ferrule (25) at one end. Connector ferrule (24) in which the optical fiber glass parts (21 ') of the plurality of attached single-core optical fibers (23) are aligned
Is fitted in the fitting tube (26), and the fitting tube (26) is fastened and coupled with the captive screws (28) and (28 ') via the springs (27) and (27'). Is.

又第6図は、光ファイバテープ(1)の被覆を除去して露
出させた光ファイバガラス部(21)と、1端に単心フェル
ール(25)が取付けられた複数の単心光ファイバ心線(23)
の光ファイバガラス部(21′)を融着接続(29)し、補強モ
ールド部(30)で一括補強したものである。
FIG. 6 shows an optical fiber glass part (21) exposed by removing the coating of the optical fiber tape (1) and a plurality of single-core optical fiber cores with a single-core ferrule (25) attached to one end. Line (23)
The optical fiber glass part (21 ') is fusion-spliced (29) and is reinforced together by the reinforcing mold part (30).

(解決しようとする問題点) 上述した従来の変換構造では、コネクタ結合域は融着接
続といずれも変換部に接続部がはいるために、この部分
での接続損失が生じ、コネクタ結合では0.2〜0.3dB程
度、又融着接続の場合は0.1〜0.2dB程度の損失とな
る。
(Problems to be solved) In the conventional conversion structure described above, since the connector coupling area is fusion spliced and the conversion portion has a connection portion in both cases, a connection loss occurs at this portion, and the connector coupling area is 0.2 The loss is about 0.3 dB, or about 0.1 to 0.2 dB in the case of fusion splicing.

又変換部の寸法が大きくなり可成の収納スペースを必要
となる。即ち、光ファイバーテープは約0.4mm〜1.6mmの
長方形の断面構造を有しているが、単心への変換部をコ
ネクタ形状にするためには約10mmφ程度は必要となる。
これは加入者用光ファイバケーブルが例えば600心〜100
0心となった場合、変換部が大きくなりすぎて伝送経路
が構築できないという危険性が存在する。
In addition, the size of the conversion section becomes large and a considerable storage space is required. That is, the optical fiber tape has a rectangular cross-sectional structure of about 0.4 mm to 1.6 mm, but about 10 mmφ is required to make the conversion part into a single core into a connector shape.
This is because subscriber optical fiber cables are, for example, 600 to 100
In the case of 0 core, there is a risk that the conversion unit becomes too large and the transmission path cannot be constructed.

(問題点を解決するための手段) 本発明は上述の問題点を解消した光ファイバテープの多
心/単心変換部を提供するもので、その特徴は、複数の
光ファイバ心線を整列させた光ファイバテープの端末部
を光ファイバ心線の並び間隔で各心線毎に分岐し、これ
ら分岐された光ファイバ心線の先端にそれぞれ独立した
単心フェルールを設けるとともに、光ファイバテープの
分岐がはじまる部分の外周上に樹脂又はチューブによる
分岐歩補強を設け、さらに分岐したそれぞれの光ファイ
バ心線上に独立したチューブによる補強層を設けたこと
にある。
(Means for Solving Problems) The present invention provides a multi-core / single-core conversion part of an optical fiber tape which solves the above-mentioned problems, and is characterized by aligning a plurality of optical fiber core wires. The end portion of the optical fiber tape is branched at intervals of the arrangement of the optical fiber cores for each core wire, and independent single-core ferrules are provided at the ends of the branched optical fiber core wires. This is because a branching step reinforcement made of resin or a tube was provided on the outer periphery of the portion beginning with, and an independent tube reinforcement layer was provided on each branched optical fiber core wire.

(実施例) 第1図は本発明の光ファイバテープの多心/単心変換部
の基本構造の上面図を示す。第3図に示すような光ファ
イバテープ(1)の端末部を肉厚約20μm程度の極薄の刃
を用いて、光ファイバ心線(2)の相隣る2次被覆(203)間
を切離し、光ファイバガラス部(201)を露出させること
なく単心光ファイバ心線(2)毎に分岐し、これら分岐さ
れた光ファイバ心線(2)の先端にはそれぞれ独立して単
心フェルール(5)を設ける。なお、光ファイバテープ(1)
の分岐がはじまる部分の外周上には樹脂をコーティング
するか補強チューブ等を施して分岐補強部(4)を形成す
る。又分岐された単心光ファイバ心線(2)の周上には樹
脂のコーティング及び補強チューブあるいはこれらのい
ずれか一方を施して補強しておくことが好ましい。
(Embodiment) FIG. 1 shows a top view of the basic structure of the multi-core / single-core conversion part of the optical fiber tape of the present invention. The end of the optical fiber tape (1) as shown in FIG. Separate and separate each single-core optical fiber core wire (2) without exposing the optical fiber glass part (201). Provide (5). Optical fiber tape (1)
The outer periphery of the portion where the branch starts is coated with resin or is provided with a reinforcing tube or the like to form the branch reinforcing portion (4). Further, it is preferable that the periphery of the branched single-core optical fiber (2) is reinforced by applying a resin coating and a reinforcing tube or one of these.

第2図は第1図に示す変換部をケース(9)に収納した実
施例の説明図を示す。図面において第1図と同一記号は
同一部位をあらわしている。
FIG. 2 is an explanatory view of an embodiment in which the converter shown in FIG. 1 is housed in a case (9). In the drawing, the same symbols as in FIG. 1 represent the same parts.

光ファイバテープ(1)の端部にはテープ補強用チューブ
(7)が挿通されており、ケーブルの補強繊維例えばケブ
ラ(6)は上記テープ補強用チューブ(7)の端部で折返さ
れ、ケブラ(6)止めリング(8)によりしっかりと固定され
ている。一方分岐された各光ファイバ心線(2)の端部に
取付けられた単心フェルール(5)は、ケース(9)のフエル
ール固定部(10)に一定間隔で整列して取付けられてい
る。又上記単心フェルール(5)の外周上には割りスリー
ブ(11)を有する単心アダプタ(12)が設けられており、こ
の単心アダプタ(12)により単心の光ファイバ心線(図示
せず)と接続が可能となり多心/単心の変換を実現す
る。
A tube for tape reinforcement at the end of the optical fiber tape (1)
(7) is inserted, the reinforcing fiber of the cable such as Kevlar (6) is folded back at the end of the tape reinforcing tube (7), and is firmly fixed by the Kevlar (6) retaining ring (8). . On the other hand, the single-core ferrules (5) attached to the ends of the branched optical fiber core wires (2) are attached to the ferrule fixing portion (10) of the case (9) aligned at regular intervals. Further, a single-core adapter (12) having a split sleeve (11) is provided on the outer circumference of the single-core ferrule (5), and the single-core adapter (12) is used to form a single-core optical fiber (not shown). No.) can be connected to realize multi-core / single-core conversion.

第4図は本発明の多心/単心変換部の他の実施例の説明
図で、分岐された単心光ファイバ心線(2)の先端の単心
フェルール(5)と、他の単心光ファイバ心線(13)の先端
の単心フェルール(14)が割りスリーブ(15)に挿入されて
結合し、板ばねクランプ(16)により固定されて、他心/
単心変換を実現している。
FIG. 4 is an explanatory view of another embodiment of the multi-core / single-core conversion unit of the present invention, in which the single-core ferrule (5) at the tip of the branched single-core optical fiber (2) and another single-core optical fiber (2). The single-core ferrule (14) at the tip of the optical fiber core wire (13) is inserted into the split sleeve (15) to be joined, and is fixed by the leaf spring clamp (16) so that the other core /
Realizes single-core conversion.

(実験例) 5心入り光ファイバテープを精密微動ステージに固定
し、極薄刃により相隣る光ファイバ心線の2次被覆間を
切離した。このように切離し分岐した光ファイバ心線上
にはシリコンスプレーを塗布した後補強チユーブを被
せ、又分岐部根本には補強チューブを被せ裂け目が広が
らないようにした。上記分岐した各光ファイバ先端には
単心フェルールを取付けて第1の構造の変換部を得た。
(Experimental example) An optical fiber tape with five cores was fixed to a precision fine movement stage, and secondary coatings of adjacent optical fiber core wires were separated by an ultrathin blade. An optical fiber core wire thus separated and branched was coated with a silicone spray after being coated with a silicon spray, and a reinforcement tube was coated on the root of the branch portion so that the crack did not spread. A single-core ferrule was attached to the tip of each of the branched optical fibers to obtain a conversion unit having the first structure.

このような変換部全体をケースに収納し、それぞれの単
心フェルールの先端には単心コネクタのアダプタを取付
け第2図の構造の変換部を得た。このように製作したケ
ース収納変換部の大きさは、幅が約55mm、高さ14mm×長
さ60mm(アダプタ抜きの寸法)である。接続損失につい
ては、端面を一括して均一に研磨できる利点を利用して
フェルール端面を凸面状に研磨した。得られた変換部の
接続損失の測定結果はサンプル数n=10、フェルール数
n=50で平均損失0.19bBと非常に低損失な変換部が得
られた。
The entire conversion unit was housed in a case, and a single-core connector adapter was attached to the tip of each single-core ferrule to obtain the conversion unit having the structure shown in FIG. The size of the case storage conversion unit manufactured in this way is approximately 55 mm in width, 14 mm in height and 60 mm in length (dimensions without adapter). Regarding connection loss, the ferrule end surface was polished to a convex shape by utilizing the advantage that the end surface could be polished uniformly at once. As a result of measuring the connection loss of the obtained conversion part, the number of samples was n = 10, the number of ferrules was n = 50, and the average loss was 0.19 bB.

上記は分岐された単心光ファイバ心線及び先端の単心フ
ェルールをケース内に収納し、先端に単心コネクタのア
ダプタを取付けた構造としたが、第4図のように単心フ
ェルール結合を板ばねクランプ等を用いてワンタッチ式
とすればさらに小型の変換部が実現できる。
In the above, the branched single-core optical fiber and the single-core ferrule at the tip were housed in the case, and the adapter of the single-core connector was attached to the tip, but as shown in FIG. If a one-touch type is used using a leaf spring clamp or the like, an even smaller conversion unit can be realized.

(発明の効果) 上述した本発明のファイバテープの多心/単心変換部に
よれば次のような効果を奏する。
(Effects of the Invention) According to the multi-fiber / single-fiber conversion unit of the fiber tape of the present invention described above, the following effects can be obtained.

光ファイバテープの分岐部において、従来のように多
心コネクタ部あるいは融着接続のような接続部がないの
で、接続損失の大幅な低減をはかることができる。
At the branching portion of the optical fiber tape, there is no multi-core connector portion or a connecting portion such as fusion splicing unlike the conventional case, so that the connection loss can be greatly reduced.

光ファイバテープの被覆部をそのまま切離しているの
で構造が簡単であり、又補強チューブ等を施しても変換
部の大きさは、コネクタ等を用いた場合に比して大幅に
小型可可能である。
Since the coating of the optical fiber tape is cut off as it is, the structure is simple, and the size of the conversion part can be significantly smaller than when using a connector etc. even if a reinforcing tube etc. is applied. .

光ファイバテープのうち比覆部がなく裸の光ファイバ
ガラス部のみの状態になるのは、先端の単心フェルール
部のみであり、この部分でも光ファイバガラス部が露出
することがないので、ガラス部表面に傷がつくことがな
く信頼性が高い。
Of the optical fiber tape, only the bare optical fiber glass part without the cover is the only single-core ferrule part at the tip. Highly reliable with no scratches on the part surface.

形成方法は多心光ファイバテープを各光ファイバ心線
に切離し分岐する工程が増えることになるが、切離しの
長さを調整しておくことにより、1括研磨の際の治具へ
の取付けがスムースに行え、均一な研磨面を同時に得る
ことが容易である。
The forming method increases the number of steps for separating the multi-core optical fiber tape into each optical fiber core wire and branching it. However, by adjusting the length of the separation, it is possible to mount the jig on a jig for single polishing. It can be done smoothly and it is easy to obtain a uniform polished surface at the same time.

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

第1図は本発明の光ファイバテープの多心/単心変換部
の基本構造の上面図、第2図は本発明の多心/単心変換
部の実施例の説明図、第3図は光ファイバテープの1例
の横断面図、第4図は本発明の多心/単心変換部の他の
実施例の説明図、第5図及び第6図は従来の多心/単心
変換部の説明図を示す。 1……光ファイバテープ、2……光ファイバ心線、3…
…テープ被覆部、4……分岐補強部、5……単心フェル
ール、9……ケース、10……単心フェルール固定部、12
……単心アダプタ、16……板ばねクランプ。
FIG. 1 is a top view of the basic structure of the multi-fiber / single-fiber conversion unit of the optical fiber tape of the present invention, FIG. 2 is an explanatory view of an embodiment of the multi-fiber / single-fiber conversion unit of the present invention, and FIG. FIG. 4 is a cross-sectional view of an example of an optical fiber tape, FIG. 4 is an explanatory view of another embodiment of the multi-core / single-core conversion unit of the present invention, and FIGS. 5 and 6 are conventional multi-core / single-core conversions. The explanatory view of a part is shown. 1 ... Optical fiber tape, 2 ... Optical fiber core wire, 3 ...
… Tape covered part, 4 …… Branch reinforcement part, 5 …… Single core ferrule, 9 …… Case, 10 …… Single core ferrule fixing part, 12
…… Single core adapter, 16 …… leaf spring clamp.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 浅野 康雄 神奈川県横浜市戸塚区田谷町1番地 住友 電気工業株式会社横浜製作所内 (56)参考文献 特開 昭53−110540(JP,A) 特開 昭59−19904(JP,A) 特開 昭55−6327(JP,A) 実開 昭59−184114(JP,U) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yasuo Asano 1 Taya-cho, Totsuka-ku, Yokohama-shi, Kanagawa Sumitomo Electric Industries, Ltd. Yokohama Works (56) Reference JP-A-53-110540 (JP, A) JP 59-19904 (JP, A) JP-A-55-6327 (JP, A) Actually developed 59-184114 (JP, U)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】複数の光ファイバ心線を整列させた光ファ
イバテープの端末部を光ファイバ心線の並び間隔で各心
線毎に分岐し、これら分岐された光ファイバ心線の先端
にそれぞれ独立した単心フェルールを設けるとともに、
光ファイバテープの分岐がはじまる部分の外周上に樹脂
又はチューブによる分岐補強部を設け、さらに分岐した
それぞれの光ファイバ心線上に独立したチューブによる
補強層を設けたことを特徴とする光フアイバテープの多
心/単心変換部。
1. An end portion of an optical fiber tape in which a plurality of optical fiber core wires are aligned is branched for each core wire at an arrangement interval of the optical fiber core wires, and the ends of the branched optical fiber core wires are respectively branched. With an independent single-core ferrule,
The optical fiber tape is characterized in that a branch reinforcing portion made of resin or a tube is provided on the outer periphery of the portion where the branch of the optical fiber tape starts, and an independent tube reinforcing layer is provided on each branched optical fiber core wire. Multi-core / single-core converter.
JP60124854A 1985-06-07 1985-06-07 Multi-fiber / single-fiber conversion unit for optical fiber tape Expired - Lifetime JPH0627889B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60124854A JPH0627889B2 (en) 1985-06-07 1985-06-07 Multi-fiber / single-fiber conversion unit for optical fiber tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60124854A JPH0627889B2 (en) 1985-06-07 1985-06-07 Multi-fiber / single-fiber conversion unit for optical fiber tape

Publications (2)

Publication Number Publication Date
JPS61282807A JPS61282807A (en) 1986-12-13
JPH0627889B2 true JPH0627889B2 (en) 1994-04-13

Family

ID=14895736

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60124854A Expired - Lifetime JPH0627889B2 (en) 1985-06-07 1985-06-07 Multi-fiber / single-fiber conversion unit for optical fiber tape

Country Status (1)

Country Link
JP (1) JPH0627889B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140010500A1 (en) * 2011-03-09 2014-01-09 Furukawa Electric Co., Ltd. Optical connector, method for aligning multi-core fiber with bundle structure, and fiber arrangement conversion member

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0485408U (en) * 1990-11-30 1992-07-24
US5425121A (en) 1994-02-02 1995-06-13 Siecor Corporation Cable assembly for use with opto-electronic equipment enclosures
US5416874A (en) * 1994-07-01 1995-05-16 Siecor Corporation Optical receiver stub fitting
JP5356944B2 (en) * 2009-07-30 2013-12-04 日立電線株式会社 Optical fiber connecting component and optical module using the same
WO2012172906A1 (en) * 2011-06-17 2012-12-20 住友電気工業株式会社 Optical connection member, optical connection structure, and method for producing optical connection member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140010500A1 (en) * 2011-03-09 2014-01-09 Furukawa Electric Co., Ltd. Optical connector, method for aligning multi-core fiber with bundle structure, and fiber arrangement conversion member
US9658410B2 (en) * 2011-03-09 2017-05-23 Furukawa Electric Co., Ltd. Optical connector, method for aligning multi-core fiber with bundle structure, and fiber arrangement conversion member

Also Published As

Publication number Publication date
JPS61282807A (en) 1986-12-13

Similar Documents

Publication Publication Date Title
US5450517A (en) Re-enterable fiber optic splicer for data communications
US20190041588A1 (en) Field installable optical fiber connector for fiber optic cables with rigid strength members
US20220026658A1 (en) Fiber optic cable assembly with furcation and method of making same
US4626067A (en) Method of breaking out and terminating fiber optic elements from a multifiber cable
US4854664A (en) Multi-fiber optic cable connector and cable apparatus
US5201019A (en) Fiber optic splice connection and a method of making same
GB1588346A (en) Method and device for connecting optical fibres
JP2008514988A (en) Connector and splice holder device
US11275217B2 (en) Field installable fiber optic connector with crimp zones for unjacketed optical fibers
EP2255235B1 (en) Method of attachment of a connector to a fiber optic cable
JP2003529094A (en) Adapter holding method and pull protector for optical fiber cable
JPH0627889B2 (en) Multi-fiber / single-fiber conversion unit for optical fiber tape
US6636663B2 (en) System and method for coupling and redirecting optical energy between two optical waveguides oriented at a predetermined angle
US7537398B2 (en) Optical fibre splice connector
US20180172914A1 (en) Optical fiber with thin film coating and connector
JP3311040B2 (en) Optical fiber branch component and manufacturing method thereof
US5592579A (en) Fiber optic cable splice and method for producing same
JPH04130304A (en) Optical connector
JPH0512683B2 (en)
JP3374508B2 (en) Optical fiber array
EP0155821A2 (en) Multiport optical fibre couplers
JPS59109012A (en) Optical multiconnector
CN211554409U (en) Optical cable assembly with subunit design
JP3400668B2 (en) Method for manufacturing optical fiber ribbon and single core conversion core
JP3349274B2 (en) Optical fiber