JPS597306A - Optical fiber coated with plastic - Google Patents
Optical fiber coated with plasticInfo
- Publication number
- JPS597306A JPS597306A JP57115171A JP11517182A JPS597306A JP S597306 A JPS597306 A JP S597306A JP 57115171 A JP57115171 A JP 57115171A JP 11517182 A JP11517182 A JP 11517182A JP S597306 A JPS597306 A JP S597306A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- resin layer
- oil
- plastic
- outer periphery
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/104—Coating to obtain optical fibres
- C03C25/1065—Multiple coatings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は光通信に用いられるプラスチック被覆光ファイ
バに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to plastic-coated optical fibers used in optical communications.
光ファイバ、シ・線と称されているプラスチック被覆光
ファイバの１つにルーズ構造のものがある０
この構造の被覆光ファイバー゛、１次コートを有する石
英系の光ファイバがパイプ状の補強樹脂層（２次コート
など）内ζこ収納されており、１次コート内周と補強樹
脂層との間ｆこ／リコーンオイルなどの液状充填材が介
在されている。One of the plastic-coated optical fibers called optical fibers and wires has a loose structure.Coated optical fibers with this structure are quartz-based optical fibers with a primary coat and a reinforcing resin layer in the form of a pipe. A liquid filler such as silicone oil is interposed between the inner periphery of the primary coat and the reinforcing resin layer.
上記における被覆光ファイバでは、光ファイバ（ガラス
）と補強樹脂層との線膨張係数が異なるとしても、これ
らの間に介在されている液状充填拐が光ファイバ、補強
（σ・ｊ脂層相互の円滑な動きを許容し、かつ、該補強
樹脂層内に光）′アイバが緩やかな蛇行状態で納１って
いるので、温度変化による補強樹脂層の伸縮時、その伸
縮力も作用せず、したがって光ファイバには歪みが発生
しないことになり、伝送損失の問題も殆ど起らない。In the coated optical fiber described above, even if the linear expansion coefficients of the optical fiber (glass) and the reinforcing resin layer are different, the liquid filling layer interposed between the optical fiber and the reinforcing (σ/j resin layer) It allows smooth movement, and since the fibers are stored in the reinforcing resin layer in a gentle meandering state, when the reinforcing resin layer expands and contracts due to temperature changes, the expansion and contraction force does not act on it. This means that no distortion occurs in the optical fiber, and there is almost no problem of transmission loss.
その反面、これら被覆光ファイバ相互を接続するとき、
・ぐイブ状とした補強樹脂層の端部から液状充填（Ａが
流失する虞があり、しかも補強）！ｊ 脂層内における
光ファイバの安定性がないことにより、当該接続（Ｃ難
度や手数をともなう他、液状充填拐がその接続部の接着
箇所などに（（Ｊ着して接着効果を低減させるので接続
部の長期信頼性を損うことになる。On the other hand, when connecting these coated optical fibers,
・Liquid filling from the end of the reinforced resin layer (there is a risk of A being washed away, and it is reinforced)! j Due to the lack of stability of the optical fiber within the fat layer, the connection (C) is difficult and time-consuming, and the liquid filling may adhere to the bonding point of the connection ((J) and reduce the adhesive effect. This will impair the long-term reliability of the connection.
本発明は」二記の問題点ｌこ対処すべくこの種のプラス
チック被覆光ファイバ（こおいて被覆構成ｆこ改善を加
えたものであり、以下その構成を図示の実施例により説
明する。The present invention is a plastic-coated optical fiber of this type (in which improvements have been made in the coating structure) in order to address the problems listed in section 2 above.
第１図は光フアイバ素線（１）を示したものであり、こ
の光フアイバ素線（１）は、コアおよびクラッドからな
る石英系の光ファイバ（２）と、該光ファイバ（２）の
外周に形成された１次コート（３）と、該１次コート（
３）の外周に形成されたバッフアコ−Ｈ４）とよりなる
。Fig. 1 shows an optical fiber (1), which consists of a quartz-based optical fiber (2) consisting of a core and a cladding, and a quartz-based optical fiber (2) consisting of a core and a cladding. a primary coat (3) formed on the outer periphery;
3) and a buffer aco-H4) formed on the outer periphery of.
上記における１次コート（３）、ノ（ノファコーＩ・（
４）は１例とじてンリコーン系の熱硬化性樹脂（（／リ
コーンコム、／リコーン切脂なと）よりなるが、バンフ
ァコート（４）としては１次コート・（３）よりも硬い
月質のものが主に採用され−でいる。First coat (3) in the above, ノ(Nofako I・(
4) is made of silicone-based thermosetting resin ((/Ricorn Comb, /Ricorn Kirinato)), but Banfa Coat (4) is made of a primary coat, which is harder than (3). The following are mainly adopted.
こヌで図示した光フアイバ素線（＋）ｉ：ｔ：）’ｅフ
ァイバ（２）の外周（こ１次コート（３）とノくラフア
コ−１・（４）とを備えているが、これら両コート（３
）（４）のいずれか一方が他方を兼ねるとき、その他方
のコートは省略されることになる。The outer periphery of the optical fiber strand (+)i:t:)'e fiber (2) shown in this figure (which has a primary coat (3) and a rough coat 1/(4)), Both coats (3
) When either one of (4) serves as the other, the other coat will be omitted.
本発明のプラスチック被覆光ファイバは上述した光フア
イバ素線（１）の外周に所定の樹脂層全形成することに
より構成されているのであり、その実施態様は第２図〜
第５図に示す通りである。The plastic-coated optical fiber of the present invention is constructed by completely forming a predetermined resin layer around the outer periphery of the above-mentioned optical fiber strand (1), and its embodiment is shown in FIGS.
As shown in FIG.
第２図では元ファイバ素線（１）の夕１周に含油樹脂層
（５）が形成されている。In FIG. 2, an oil-impregnated resin layer (5) is formed around one circumference of the original fiber wire (1).
この含油樹脂層（５）を構成しているベースレジンｔ」
、熱り塑性１ｖＪ脂、熱硬化性樹脂のいずれかから選ば
れた含油性のポリ−７−からなり、これの共体例として
、そのベースレジンはポリアセタール系、ポリアミド系
（ナイロン６）、ポリエチレン、ポリプロピレン、ポリ
エステル、合成ゴム系などからなり、当該ベースレジン
（こ潤ｐＨｌ性のある油、例えば／リコーンオイルなど
が１〜２０係程度含浸されている。The base resin t that constitutes this oleoresin layer (5)
, thermoplastic 1vJ resin, thermosetting resin, and the base resin is polyacetal-based, polyamide-based (nylon 6), polyethylene, It is made of polypropylene, polyester, synthetic rubber, etc., and is impregnated with the base resin (an oil with a moisturizing pH value, such as silicone oil) at a ratio of about 1 to 20 parts.
さらに第２図の場合では、含油樹脂層（５）として機械
的強度の高いものが採用されており、したがってこの実
施態様での＊ ／ｌｌｌ Ｍ脂層（５）は光フアイバ素
線（１）の補強（Ｖ１脂層をも兼ねている。Furthermore, in the case of FIG. 2, a layer with high mechanical strength is used as the oil-containing resin layer (5), and therefore the */lll M resin layer (5) in this embodiment is the same as the optical fiber (1). reinforcement (also serves as the V1 fat layer).
第２図のプラスチック被覆光ファイバでは、光フアイバ
素線（１）の外周と含油樹脂層（５）の内周とが互いに
接触することとなるが、これら両者ｔｌｌ ｆ５）の界
面（こは含油樹脂層（５）の油性分によりきわめて微小
な粘性膜が介在され、こノシ（こより尤ファイバ素線（
１）と含油樹脂層（５）との相対摩擦が減じられるので
、ぼ油樹脂層（５）内（Ｃおける光ファイバ素ＳｔＯの
自由度は満足に確保できる。In the plastic-coated optical fiber shown in Fig. 2, the outer periphery of the optical fiber (1) and the inner periphery of the oil-impregnated resin layer (5) come into contact with each other; An extremely fine viscous film is interposed by the oily content of the resin layer (5), resulting in a thin fiber
Since the relative friction between 1) and the oleoresin layer (5) is reduced, the degree of freedom of the optical fiber element StO in the oleoresin layer (5) (C) can be ensured satisfactorily.
したがって、光フアイバ木線（１）、含油樹脂層（５）
相互の円？Ｒ’ｆｘ動きが許容され、例えば温度変化１
こより含油樹脂層（５）が伸縮したとしでもその伸縮力
は尤ファイバ素線（１）ｉこ作用しないので、伝送損失
増の問題点の問題が殆どなく、特に０℃以下の使用条件
でも含油樹脂層（５）（こ含浸されている油性分は凍結
を起こさず、その潤滑機能を充分に保持するので、低温
特性は従来のものよりもよい。Therefore, the optical fiber wood wire (1), the oleoresin layer (5)
A mutual circle? R'fx movement is allowed, e.g. temperature change 1
Therefore, even if the oil-impregnated resin layer (5) expands and contracts, the expansion and contraction force does not act on the fiber strand (1), so there is almost no problem of increased transmission loss, and even when the oil-impregnated resin layer (5) is used under conditions of 0°C or lower, there is almost no problem of increased transmission loss. The resin layer (5) has better low-temperature properties than conventional ones because the oil content impregnated therein does not freeze and sufficiently retains its lubricating function.
才だ、含油樹脂層（５）はその表向が油で商れたごとき
状態を呈していても、その油には流動性はなり、シかも
」二連した自由度はあっても含２山樹脂層（５）が光フ
アイバ素線（１）をかなり安定して保持するから、被覆
光ファイバ相互の接続時、油流出の問題、流出した油に
よる汚染の問題、光フアイバ素線（１）の不安定な挙動
などにより接続作業が阻害されるとか、接続後の長期信
頼性がなくなるといったことになく、もちろん含油樹脂
層（５）の場合は光フアイバ素線（１）からの剥離１（
１があり、総じて被覆光ファイバ相互の接続が信頼性を
もつ−Ｃ簡易かつ能率よく行なえることとなる。Even if the surface of the oleoresin layer (5) appears to be oily, the oil has fluidity and may be unstable. Since the mountain resin layer (5) holds the optical fiber strand (1) fairly stably, when connecting the coated optical fibers together, there is no problem of oil spillage or contamination due to spilled oil. ), the connection work will be hindered or the long-term reliability after connection will be lost due to unstable behavior of the oleoresin layer (5). (
1, and as a whole the coated optical fibers can be easily and efficiently connected to each other with reliability.
つきに第３図のプラスチック被覆光ファイバについて説
明すると、同図の被覆光ファイバは光フアイバ素線（Ｉ
）、含油樹脂層（５）に関してｎｉＪ述したものと同じ
であり、該含油樹脂層（５）の外周に油止め樹脂層（６
）が形成されている。To explain the plastic-coated optical fiber shown in FIG.
) is the same as that described with respect to the oleoresin layer (5), and an oil stopper resin layer (6
) is formed.
この油止め樹脂層（６）は熱可塑性樹脂製、熱硬化付樹
脂製のいずれでもよく、含油樹脂層（５）の外周面にお
ける油性分が他物【こ何着するのを防止すべく設けられ
ている。This oil-retaining resin layer (6) may be made of either thermoplastic resin or thermosetting resin, and is provided to prevent the oily content on the outer peripheral surface of the oil-retaining resin layer (5) from getting onto other materials. It is being
もちろん第３図のプラスチック被覆光フ゛アイバも、含
油樹脂層（５）を侃１えでいるので、前記第２図のもの
と同等の効果を奏すること（こなる。Of course, the plastic-coated optical fiber shown in FIG. 3 also has the oil-impregnated resin layer (5) on its side, so it has the same effect as the one shown in FIG. 2.
第４図のプラスチック被覆光ファイバは光フアイバ素線
（１）と含油樹脂層（５）と補強樹脂層（７）とからな
る。The plastic-coated optical fiber shown in FIG. 4 consists of an optical fiber strand (1), an oil-impregnated resin layer (5), and a reinforcing resin layer (7).
前述した第２図のものては含油樹脂層（５）が補強樹脂
層をも兼ねていたが、第４図のものでＶ」これら両層が
各別的ｆこ設けられている。In the case shown in FIG. 2 described above, the oil-impregnated resin layer (5) also served as the reinforcing resin layer, but in the case shown in FIG. 4, both of these layers are provided separately.
第４図の場合、補強樹脂層（５）は所定の機械的特（ａ
を備えているかきり、熱１月塑性樹脂、熱硬化性樹脂の
いずれでもよく、址だ、含油樹脂層ｆ５） Ｉｒ、ｒ補
強樹脂層（７）の強度に依存できるので、強度」−の制
限を受けることなく Ａｉｌ述の各樹脂が採用できる。In the case of FIG. 4, the reinforcing resin layer (5) has a predetermined mechanical property (a
The oleoresin layer (f5) can be made of either a thermoplastic resin or a thermosetting resin, but the strength is limited because it can depend on the strength of the Ir, r reinforcing resin layer (7). Each of the resins mentioned in Ail can be used without being affected.
もちろん第４図のプラスチック被覆光ファイバも含油樹
脂層（５）による所定の効果が得られる。Of course, the plastic-coated optical fiber shown in FIG. 4 can also obtain the desired effect due to the oil-impregnated resin layer (5).
第５図のプラスチック被憬光ファイバは光フアイバ素線
（１）の外周に補強樹脂層（７）が形成されており、該
補強樹脂層（力の内層部に含油樹脂層（５）が形成され
ている。In the plastic-coated optical fiber shown in Fig. 5, a reinforcing resin layer (7) is formed on the outer periphery of the optical fiber (1), and an oil-impregnated resin layer (5) is formed on the inner layer of the reinforcing resin layer. has been done.
つまり第５図の場合では、１つの層を利用しして」−記
両層［５１（７）が一体形成されているのであり、この
図示のプラヌチソク被魚光ファイバには含油樹脂層（５
）による効果、補強樹脂層（７）による補強効果、ｌら
０・に同層（刀を介した油止め効果がある。In other words, in the case of Fig. 5, both layers [51 (7)] are integrally formed by using one layer, and the illustrated optical fiber is covered with an oil-impregnated resin layer (51 (7)).
), the reinforcing effect of the reinforcing resin layer (7), and the same layer (oil-retaining effect through the sword).
なおＸｆｉｉ＋述した含油樹脂層（５）ばそのベースレ
ジンの摩擦係数を−Ａ−以下減じるものであればよく〜
これらの具体的商品名をあげると、旭化成（株）製ＬＴ
２００、ポリプラスチック（株）製の／ニラコン０Ｌ−
１．０．住友’ｒ［工（株）製のカンプラなどがある。In addition, Xfii + the above-mentioned oleoresin layer (5) may be any material that reduces the friction coefficient of the base resin by −A− or less.
Specific product names of these include LT manufactured by Asahi Kasei Corporation.
200, Polyplastic Co., Ltd./Nilacon 0L-
1.0. Examples include Campra manufactured by Sumitomo'r Co., Ltd.
つき（こ第２図で説明したプシノチソク破范光ファイバ
の具体例とその比較例とを説明する。A specific example of the flexible optical fiber explained in FIG. 2 and a comparative example thereof will be explained.
具体例 九フッ′イバ素線（１）に」下記構成のものとした。Concrete example The nine-strand fiber wire (1) had the following configuration.
）ｌｃファイバ＋２＋ ： ＝ｒア／クラッド＝ ５０
１ｔｍ／１２５／１ｍ ％石英系、Ｇ■型、△＝］、Ｏ
％０
１次＝ｒ −１−（３）：／す：＋ −ンコｌｘ、外径
４００１１ｍ。) lc fiber +2+: =r/cladding=50
1tm/125/1m % quartz type, G■ type, △=], O
%0 1st order = r -1-(3):/su:+ -nko lx, outer diameter 40011 m.
含／ｌＩＩ樹脂層（５）は旭化成（株）製ＬＴ２００゜
内径／外径＝１．５ｍＷ／２．ＯＭとした。The /II resin layer (5) is manufactured by Asahi Kasei Co., Ltd. LT200° inner diameter/outer diameter = 1.5 mW/2. It was set as OM.
比較例
光フアイバ素線は具体例と同じ、これをナイロン１２製
、内１￥／外径−１，，５ｍｒｙ ／ ２． Ｏｍｍの
パイプ状補強樹脂層内に入れ、光フアイバ素線と補強樹
脂層との間に粘度３０００ＣＰＳのノリコーンメイルを
充填した。Comparative example The optical fiber wire was the same as the specific example, made of nylon 12, inner diameter 1 yen/outer diameter -1,5 mry/2. It was placed in a pipe-shaped reinforcing resin layer of 0 mm, and Noricone mail with a viscosity of 3000 CPS was filled between the optical fiber wire and the reinforcing resin layer.
−１−記具体例、比較例とも、λ−０，８５μｎ１ に
よる光フアイバ素線段階の伝送損失が２．８ ｄＢ／に
＋ｎ、これを被層した後の伝送損失が：３． ＯｄＢ／
Ｋｍ 以Ｆであり、伝送特性（こ関して両者の差異は
認められなかったが、比較例の場合、接わ”しに際して
の油ｄＬ出ｆこよりそのイ乍業が多分１Ｆであったのに
月し、具体例の場合は／ｌＩｌ流出が全くみられず、Ｊ
と続作業がきわめて簡易（こ行なえた。In both the specific example and the comparative example described in -1-, the transmission loss at the optical fiber stage due to λ-0, 85 μn1 was 2.8 dB/+n, and the transmission loss after coating with this was: 3. OdB/
Km is F, and transmission characteristics (no difference was observed between the two in this regard, but in the case of the comparative example, the oil dL output at the time of contact was probably 1F). In the specific case, /lIl leakage was not observed at all, and J
The continuation work is extremely simple (I was able to do this).
以−Ｌ説明した通り、本発明のプラスチック被覆光ファ
イバー光ファイバ素線の外周に含油樹脂層が形成きれて
いるから、τｉ’＋Ｆｔ度特性たけでなく光フアイバ接
続時の作業性に優れたものが得られ、接続後の長期信頼
性も確保できる。As explained below, since the oil-impregnated resin layer is completely formed on the outer periphery of the plastic-coated optical fiber strand of the present invention, it not only has excellent τi'+Ft degree characteristics but also excellent workability when connecting optical fibers. This also ensures long-term reliability after connection.
第１図は本発明被覆光ファイバの中心構造をなす光フア
イバ素線の断面図、第２図〜第５図は本発明被俊光ファ
イノくの各種実施例を示した断面図である。
（１）・・・・・光フアイバ素線
（２）・・・・・光ファイバ
（３）・・・・・１次コート
Ｍｌ−−−−−バッファコート
（５）・・・・・含油樹脂層
（６）・・・・・油市め樹脂層
（７）・・・・・補強樹脂層FIG. 1 is a cross-sectional view of an optical fiber strand forming the central structure of the coated optical fiber of the present invention, and FIGS. 2 to 5 are cross-sectional views showing various embodiments of the optical fiber of the present invention. (1)...Optical fiber (2)...Optical fiber (3)...Primary coat Ml---Buffer coat (5)...Oil-impregnated Resin layer (6)...Oil-filled resin layer (7)...Reinforcement resin layer
Claims (6)
れているプラスチック被覆光ファイバ。(1) A plastic-coated optical fiber in which an oil-impregnated resin layer is formed around the outer periphery of the optical fiber.
設けられた油止め樹脂層との間に形成されている特許請
求の範囲第１項＋ｔ１２載のプラスチック被覆光ファイ
バ。(2) The plastic-coated optical fiber according to claim 1+t12, wherein the oil-impregnated resin layer is formed between the fiber strand and the outer periphery thereof (and the oil-retaining resin layer provided thereon).
られた補強樹脂層との間に形成されている特許請求の範
囲第１項記ｄ位のプラスチック被覆光ファイバ。(3) The plastic-coated optical fiber according to claim 1, item d, wherein the oil-impregnated resin layer is formed between the optical fiber strand and the reinforcing resin layer provided on its outer periphery.
れた補強樹脂層の内層部に形成されている特、Ｎ／ｒ請
求の範囲第１項記載のプラスチック被覆光ファイバ。(4) The plastic-coated optical fiber according to claim 1, wherein the oil-impregnated resin layer is formed on the inner layer of the reinforcing resin layer provided on the outer periphery of the optical fiber.
可塑性樹脂、熱硬化性樹脂のいずれかから選ばれた含油
性のポリマーからｌる特許請求の範囲第１項ないし第４
項いずれかに記載のプラスチック被覆光ファイバ。(5) The base resin constituting the oleoresin layer is an oleoresin polymer selected from thermoplastic resins and thermosetting resins.
2. The plastic-coated optical fiber according to any one of paragraphs.
ド系、ポリエチレン、ポリプロピレン、ポリエステル、
合成ゴム系のいずれかからなる特許請求の範囲第５項記
載のプラスチック被覆光ファイバ。(6) Base resin is polyacetal, polyamide, polyethylene, polypropylene, polyester,
The plastic-coated optical fiber according to claim 5, which is made of any synthetic rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57115171A JPS597306A (en) | 1982-07-02 | 1982-07-02 | Optical fiber coated with plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57115171A JPS597306A (en) | 1982-07-02 | 1982-07-02 | Optical fiber coated with plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS597306A true JPS597306A (en) | 1984-01-14 |
Family
ID=14656097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57115171A Pending JPS597306A (en) | 1982-07-02 | 1982-07-02 | Optical fiber coated with plastic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS597306A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109U (en) * | 1984-06-07 | 1986-01-06 | 住友電気工業株式会社 | Lou tube core wire |
| KR100747815B1 (en) * | 2004-12-08 | 2007-08-08 | 엘지전자 주식회사 | The mounting structure of ventilation filter for electric oven |
-
1982
- 1982-07-02 JP JP57115171A patent/JPS597306A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109U (en) * | 1984-06-07 | 1986-01-06 | 住友電気工業株式会社 | Lou tube core wire |
| KR100747815B1 (en) * | 2004-12-08 | 2007-08-08 | 엘지전자 주식회사 | The mounting structure of ventilation filter for electric oven |
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