JPS6193416A - Optical fiber connector - Google Patents

Optical fiber connector

Info

Publication number
JPS6193416A
JPS6193416A JP21328584A JP21328584A JPS6193416A JP S6193416 A JPS6193416 A JP S6193416A JP 21328584 A JP21328584 A JP 21328584A JP 21328584 A JP21328584 A JP 21328584A JP S6193416 A JPS6193416 A JP S6193416A
Authority
JP
Japan
Prior art keywords
phenol resin
aromatic hydrocarbon
ferrules
modified phenol
cylindrical sleeve
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
Application number
JP21328584A
Other languages
Japanese (ja)
Other versions
JPH0246923B2 (en
Inventor
Tetsuo Yoshizawa
吉澤 鐵夫
Munehisa Hamaguchi
浜口 宗久
Zenzo Kishikawa
岸川 善造
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 Bakelite Co Ltd
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Bakelite Co Ltd
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 Bakelite Co Ltd, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP21328584A priority Critical patent/JPH0246923B2/en
Publication of JPS6193416A publication Critical patent/JPS6193416A/en
Publication of JPH0246923B2 publication Critical patent/JPH0246923B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Phenolic Resins Or Amino Resins (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

PURPOSE:To maintain superior connecting characteristics even under severe conditions by using a material contg. a specified aromatic hydrocarbon modified phenol resin composition as the base to form ferrules. CONSTITUTION:In a cylindrical sleeve type connector, ferrules 2 having united optical fibers 1 are inserted into a cylindrical sleeve 3, butted, and fixed with cap nuts 4. Phenol and aromatic hydrocarbon selected among benzene, toluene and xylene are reacted with formaldehyde in the presence of a condensation catalyst to obtain aromatic hydrocarbon modified phenol resin having a skeleton represented by the formula, and 25-100pts.wt. resol type phenol resin and glass fibers as a filler are added to 100wt% of the modified phenol resin. The ferrules 2 are molded from the resulting modified phenol resin composition contg. glass fibers as a filler. The ferrules 2 have superior dimensional stability and undergo <=2mum dimensional change under severe conditions.

Description

【発明の詳細な説明】 本発明は円筒スリーブ又は割りスリーブを介して付き合
わせ接続を行う方式の光7アイパーコネクターに関する
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical 7-eyeper connector that performs butt connection through a cylindrical sleeve or split sleeve.

現在、光ファイバーコネクター(以下、単に「コネクタ
ー」とい5)は前記方式のものが多く使用されている。
Currently, many optical fiber connectors (hereinafter simply referred to as "connectors"5) of the above type are in use.

円筒スリーブ方式のコネクターは一例を第1図に示すよ
うに、外側をネジ切シした円筒形のスリーブ(3)の両
側から光ファイバー(1)を一体化したフェルール(A
)を挿入、付き合わせ、これらを袋ナツト(4)により
固定するものである。この方式のコネクターは構造が単
純で、部品数が少ない利点があるが、各部品特に7エル
ールの寸法精度によりコネクターの特性が大きく左右さ
れる。
An example of a cylindrical sleeve type connector is shown in Fig. 1, in which a ferrule (A) with an integrated optical fiber (1) is inserted from both sides of a cylindrical sleeve (3) with a threaded exterior.
) are inserted and brought together, and these are fixed with a cap nut (4). This type of connector has the advantage of a simple structure and a small number of parts, but the characteristics of the connector are greatly influenced by the dimensional accuracy of each part, especially the 7 errules.

通常用いられる材料、例えば通常のフェノール樹脂では
接続損失が1.5〜ZOdBと大きい。
Commonly used materials, such as common phenolic resin, have a large connection loss of 1.5 to ZOdB.

一方、割りスリーブ方式のコネクターは一例を第2図に
示すように、長さ方向にスリットを設けた円筒形スリー
ブ(割りスリーブ> (130両面から光7アイパーa
υを一体化した7エルールazを挿入し、付き゛合わせ
、これらをアダプターIと袋ナツト(isにより固定す
るものである。この方式の;ネクターは割りスリーブを
用いているため構造がやや複雑となるが、スリーブやフ
ェルールの寸法精度が通常の円筒スリーブの場合に比較
して若干劣っていても割りスリーブのスリットによ多接
続損失の増大を防止できる。これらの方式のコネクター
において、特に寸法精度が要求されるフェルールは、最
近充填剤としてガラス繊維を40〜60%(重量%、以
下同じ)含有したフェノール樹脂により形成されたもの
が多くなってきている。ガラス繊維入)フェノール樹脂
は成瘤性がすぐれているので、この材料を成形して得ら
れたフェルールは高い寸法精度を有している。従って、
このフェルールを使用したコネクターの接続損失は初期
値及び常態使用において1dB以下である。
On the other hand, as shown in Figure 2, an example of a split sleeve type connector is a cylindrical sleeve with slits in the length direction (split sleeve> (130).
Insert the 7 errule az with the integrated υ, align them, and fix them with the adapter I and the cap nut (is).The structure of this method is a little complicated because the nectar uses a split sleeve. However, even if the dimensional accuracy of the sleeve or ferrule is slightly inferior to that of a normal cylindrical sleeve, the slits in the split sleeve can prevent an increase in multi-connection loss. In recent years, ferrules that require a Due to its excellent properties, ferrules obtained by molding this material have high dimensional accuracy. Therefore,
The connection loss of a connector using this ferrule is 1 dB or less at the initial value and under normal use.

しかしながら、かかるフェルールは苛酷な条件(高温高
湿、あるいは絶乾状態)下では数ミクロン程度の寸法変
化が起シ、このフェルールを使用したコネクターは接続
損失が増大する。例えば初は0.8〜1.2dBとなる
。従りて、このような苛酷な条件下においても接続損失
を1dB以下に保つためにはフェルールの光フアイバー
穴の偏心を1ミクロン以下に押えなければならないが、
これは金型製作上、あるいは成形上かカシ困難なことで
ある0 本発明は円筒スリーブ又は割りスリーブ方式のコネクタ
ーにおいて、特にフェルール用の材料として前記欠点の
ない樹脂材料を種々検討して完成されたもので、前記フ
ェルール用の材料として特定の芳香族炭化水素変性フェ
ノール樹脂組成物を主′成分とする素材を使用すること
を特徴とする。
However, such ferrules undergo dimensional changes of several microns under severe conditions (high temperature, high humidity, or bone dry conditions), and connectors using this ferrule have increased connection loss. For example, the initial value is 0.8 to 1.2 dB. Therefore, in order to keep the connection loss below 1 dB even under such severe conditions, the eccentricity of the optical fiber hole in the ferrule must be kept below 1 micron.
This is difficult in terms of mold production or molding.The present invention was completed by examining various resin materials that do not have the above-mentioned drawbacks, especially as materials for ferrules in cylindrical sleeve or split sleeve type connectors. The ferrule is characterized in that a material containing a specific aromatic hydrocarbon-modified phenol resin composition as a main component is used as the material for the ferrule.

本発明に用いる芳香族炭化水素変性フェノール有してお
)、これで成形されたフェルールは寸法安定性がすぐれ
ており、苛酷な条件下においても寸法変化が2ミク党ン
以下である。従って、コネクターの接続損失は初期及び
常態使用においてldB以下であることはもちろん、苛
酷な条件下においても1dB以下を維持することができ
る。更に硬化した芳香族炭化水素変性フェノール樹脂組
成物は硬度が高いので、フェルールの付き合わせ面の研
磨は樹脂と光ファイバーとの研磨特性の差が比較的小さ
く、研磨が安定し、短時間で行うことができる。
The ferrule molded using the aromatic hydrocarbon-modified phenol used in the present invention has excellent dimensional stability, and dimensional change is less than 2 mm even under severe conditions. Therefore, the connection loss of the connector is not only 1 dB or less during initial and normal use, but also 1 dB or less even under severe conditions. Furthermore, since the hardened aromatic hydrocarbon-modified phenol resin composition has high hardness, the difference in polishing properties between the resin and the optical fiber is relatively small when polishing the mating surface of the ferrule, making polishing stable and quick. I can do it.

次に、芳香族炭化水素変性フェノール樹脂組成物につい
て更に詳細に説明する。
Next, the aromatic hydrocarbon-modified phenol resin composition will be explained in more detail.

本発明において芳香族炭化水素変性フェノール樹脂組成
物は、フェノールと、ベンゼン、トルエン及びキシレン
から選ばれる芳香族炭化水素とをホルムアルデヒドと共
に縮合触媒の存在下で反応させて得られる下記の骨格囚
を有するもの100重量1に、レゾールタイプのフェノ
ール樹脂25〜100重量部を添加したものであって、
寸熱安定性が特にすぐれ、耐熱性、耐湿性もすぐれてい
る。
In the present invention, the aromatic hydrocarbon-modified phenol resin composition has the following skeleton obtained by reacting phenol with an aromatic hydrocarbon selected from benzene, toluene, and xylene together with formaldehyde in the presence of a condensation catalyst. 25 to 100 parts by weight of a resol type phenolic resin is added to 100 parts by weight of the product,
It has particularly excellent thermal stability, as well as excellent heat resistance and moisture resistance.

かかる芳香族炭化水素変性フェノール樹脂組成物には無
機質の繊維状又は粒状の充填剤を添加するととKよ)更
に寸法安定性をすぐれたものとすることができる。
By adding an inorganic fibrous or granular filler to such an aromatic hydrocarbon-modified phenol resin composition, it is possible to further improve the dimensional stability.

次に実施例について説明する。Next, an example will be described.

第1図の円筒スリニブ方式のコネク、ター及び第2図の
割りスリーブ方式のコネクターにおいて1.7エルール
をそれぞれ囚ガラス繊維50重量%含有フェノール樹脂
、及び■ガラス繊維5o重i−%含有キシレン変性フェ
ノール樹脂組成物(キシレン変性−j!に40重i!k
llI)で成形し、接続損失を測足し九。結果は第1表
の通シである。表から明らかナヨウニ、ガラス繊維含有
キシレン変性7 x / −ル樹脂組成物により成形さ
れたフェルールの場合、苛酷な条件下においてもすぐれ
た接続特性を維持することができる。
In the cylindrical sleeve type connector shown in Figure 1 and the split sleeve type connector shown in Figure 2, a phenolic resin containing 50% by weight of glass fiber containing 1.7 errule and xylene modified glass fiber containing 50% by weight are used. Phenol resin composition (xylene modified-j! to 40 ply i!k
llI) and measure the connection loss.9. The results are shown in Table 1. It is clear from the table that the ferrule molded from the glass fiber-containing xylene-modified 7x/- resin composition can maintain excellent connection characteristics even under severe conditions.

第1表 コネクターの接続損失 (単位dB)Table 1 Connector connection loss (Unit: dB)

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は円筒スリーブ方式のコネクターの断面図、第2
図は割りスリーブ方式のコネクターの断面図である。 特許出願人 住友ベークライト株式会社(ほか2名) 第1図 第2図
Figure 1 is a cross-sectional view of a cylindrical sleeve type connector, Figure 2
The figure is a sectional view of a split sleeve type connector. Patent applicant Sumitomo Bakelite Co., Ltd. (and 2 others) Figure 1 Figure 2

Claims (1)

【特許請求の範囲】 円筒スリーブ又は割りスリーブを介して付き合わせ接続
を行う方式の光ファイバーコネクターにおいて、フェル
ールが下記(A)の骨格を有する芳香族炭化水素変性フ
ェノール樹脂100重量部とレゾールタイプのフェノー
ル樹脂2.5〜100重量部とからなる芳香族炭化水素
変性フェノール樹脂組成物を主成分とする素材により形
成されていることを特徴とする光ファイバーコネクター
。 ▲数式、化学式、表等があります▼ (ただし、Xは▲数式、化学式、表等があります▼、▲
数式、化学式、表等があります▼、▲数式、化学式、表
等があります▼を表す)
[Claims] In an optical fiber connector of a type in which a butt connection is made through a cylindrical sleeve or a split sleeve, the ferrule is made of 100 parts by weight of an aromatic hydrocarbon-modified phenolic resin having the following skeleton (A) and resol type phenol. An optical fiber connector characterized in that it is formed of a material whose main component is an aromatic hydrocarbon-modified phenol resin composition comprising 2.5 to 100 parts by weight of resin. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (However, X is ▲There are mathematical formulas, chemical formulas, tables, etc.▼, ▲
There are mathematical formulas, chemical formulas, tables, etc. ▼, ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼)
JP21328584A 1984-10-13 1984-10-13 HIKARIFUAIBAAKONEKUTAA Expired - Lifetime JPH0246923B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21328584A JPH0246923B2 (en) 1984-10-13 1984-10-13 HIKARIFUAIBAAKONEKUTAA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21328584A JPH0246923B2 (en) 1984-10-13 1984-10-13 HIKARIFUAIBAAKONEKUTAA

Publications (2)

Publication Number Publication Date
JPS6193416A true JPS6193416A (en) 1986-05-12
JPH0246923B2 JPH0246923B2 (en) 1990-10-17

Family

ID=16636577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21328584A Expired - Lifetime JPH0246923B2 (en) 1984-10-13 1984-10-13 HIKARIFUAIBAAKONEKUTAA

Country Status (1)

Country Link
JP (1) JPH0246923B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04137232A (en) * 1990-09-27 1992-05-12 Sharp Corp Optical pickup device

Also Published As

Publication number Publication date
JPH0246923B2 (en) 1990-10-17

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