JPH049906A - Connector connected optical fiber and production thereof - Google Patents
Connector connected optical fiber and production thereofInfo
- Publication number
- JPH049906A JPH049906A JP11382290A JP11382290A JPH049906A JP H049906 A JPH049906 A JP H049906A JP 11382290 A JP11382290 A JP 11382290A JP 11382290 A JP11382290 A JP 11382290A JP H049906 A JPH049906 A JP H049906A
- Authority
- JP
- Japan
- Prior art keywords
- connector
- optical fiber
- columnar body
- crosslinked elastomer
- thermoplastic resin
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims 3
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000000806 elastomer Substances 0.000 claims abstract description 21
- 239000011521 glass Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920006352 transparent thermoplastic Polymers 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 abstract description 11
- 229920003229 poly(methyl methacrylate) Polymers 0.000 abstract description 5
- 239000004926 polymethyl methacrylate Substances 0.000 abstract description 5
- 239000010453 quartz Substances 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 7
- 239000011162 core material Substances 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000002998 adhesive polymer Substances 0.000 description 2
- 101150110330 CRAT gene Proteins 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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、コネクタ接続光ファイバに関する。[Detailed description of the invention] [Industrial application field] The present invention relates to connector-connected optical fibers.
更に詳しくは５光伝送率を向上せしめたコネクタ接続架
橋エラストマー製光ファイバに関する。More specifically, the present invention relates to a connector-connected crosslinked elastomer optical fiber with improved optical transmission rate.
〔従来の技術〕および〔発明が解決しようとする課題〕
石英などのガラス製光ファイバやポリメチルメタクリレ
ートなどの熱可塑性樹脂製光ファイバに接続されたコネ
クタの先端面は、ホットプレートなどを用い、溶融する
ことで鏡面を出している。[Prior art] and [Problem to be solved by the invention]
The end surface of a connector connected to an optical fiber made of glass such as quartz or an optical fiber made of thermoplastic resin such as polymethyl methacrylate is melted using a hot plate or the like to create a mirror surface.
しかるに、架橋エラストマー製光ファイバを接続させた
コネクタの場合には、熱不融の架橋構造体のため、こう
した方法がとれず、次のような問題がみられる。However, in the case of a connector to which an optical fiber made of a crosslinked elastomer is connected, such a method cannot be used because the crosslinked structure is heat infusible, and the following problems occur.
（１）光の入射時および出射時に、コネクタ先端面の切
断時のキズにより光が散乱し、伝送可能な光量が著しく
減少する。(1) When light enters and exits, the light is scattered due to scratches during cutting on the tip end surface of the connector, and the amount of light that can be transmitted is significantly reduced.
（２）コネクタ先端面の散乱光を受光器に集光するため
に、レンズなどの光学系を組込む必要がある。(2) It is necessary to incorporate an optical system such as a lens in order to focus the scattered light from the connector end surface onto the light receiver.
本発明の目的は、コネクタに接続された架橋エラストマ
ー製光ファイバにおいて、コネクタ先端面を処理可能と
することにより、光伝送率を向上せしめることにある。An object of the present invention is to improve the optical transmission rate of a crosslinked elastomer optical fiber connected to a connector by making it possible to treat the end surface of the connector.
かかる本発明の目的は、架橋ニジストマー製光ファイバ
に接続されたコネクタの先端面を透明な熱可塑性樹脂ま
たはガラスで形成せしめたコネクタ接続光ファイバによ
って達成される。This object of the present invention is achieved by a connector-connecting optical fiber in which the distal end surface of the connector connected to a crosslinked nidistomer optical fiber is formed of transparent thermoplastic resin or glass.
このようなコネクタ接続光ファイバは、次のいずれかの
方法によって製造される。Such a connector-connected optical fiber is manufactured by one of the following methods.
（１）コネクタの先端部に透明な熱可塑性樹脂製または
ガラス製の柱状体を固定し、先端面を鏡面仕上げした後
、コネクタの他端部側から挿入された架橋エラストマー
製光ファイバを前記柱状体とコネクタ内で接着させる方
法
（２）コネクタの先端部に透明な熱可塑性樹脂製または
ガラス製の柱状体を固定し、コネクタの他端部側から挿
入された架橋エラストマー製光ファイバを前記柱状体と
コネクタ内で接着した後、柱状体の先端面を鏡面仕上げ
する方法
コネクタの先端部に挿入される柱状体は、コネクタ長よ
り短く、一般には約１．５〜５ｍｍ程度の長さを有する
円柱体であり、これはポリメチルメタクリレート、ポリ
スチレンなどの透明な熱可塑性樹脂製または石英などの
ガラス製である。これらの柱状体は、適当なエポキシ樹
脂を用いてコネクタ先端部に固定され、その先端面は溶
融法などで鏡面仕上げされる。(1) After fixing a columnar body made of transparent thermoplastic resin or glass to the tip of the connector and mirror-finishing the tip surface, the crosslinked elastomer optical fiber inserted from the other end of the connector is attached to the columnar body. Method of adhering the body and the inside of the connector (2) A columnar body made of transparent thermoplastic resin or glass is fixed to the tip of the connector, and a crosslinked elastomer optical fiber inserted from the other end of the connector is attached to the columnar body. Method for mirror-finishing the end surface of a columnar body after adhering it to the body within the connector The columnar body inserted into the tip of the connector has a length shorter than the connector length, generally about 1.5 to 5 mm. It is a cylindrical body made of transparent thermoplastic resin such as polymethyl methacrylate, polystyrene, or glass such as quartz. These columnar bodies are fixed to the tip of the connector using a suitable epoxy resin, and the tip surface is mirror-finished by a melting method or the like.
このような柱状体を固定させたコネクタの他端部側から
は、アクリル系、シリコン系などの架橋エラストマー製
光ファイバが挿入され、柱状体の他端側とコネクタ内で
接着される。架橋エラストマー製光ファイバは、コア材
、クラッド材共に架橋性基を有する共重合体よりなり、
架橋剤、加熱、光照射あるいはこれらを併用することに
より架橋された構造を有している。また、コア材と柱状
体とは、等しい屈折率を有するものを用いることが好マ
シイ。接着は、これらと屈折率を同一または近似する接
着剤、好ましくは未架橋のコア材材料を介在させ、それ
を加熱架橋させる方法などによって行われる。An optical fiber made of a crosslinked elastomer such as acrylic or silicone is inserted from the other end of the connector to which such a columnar body is fixed, and is bonded to the other end of the columnar body within the connector. A crosslinked elastomer optical fiber is made of a copolymer that has a crosslinkable group in both the core material and the cladding material.
It has a crosslinked structure by using a crosslinking agent, heating, light irradiation, or a combination of these. Further, it is preferable that the core material and the columnar body have the same refractive index. Adhesion is performed by interposing an adhesive having the same or similar refractive index as these, preferably an uncrosslinked core material, and crosslinking it by heating.
更に、上記方法において、柱状体と架橋エラストマー製
光ファイバとの接着を行った後、コネクタ先端部の柱状
体先端面の鏡面仕上げを行うこともできる。Furthermore, in the above method, after bonding the columnar body and the optical fiber made of a crosslinked elastomer, the end surface of the columnar body at the tip end of the connector can be mirror-finished.
架橋エラストマー製光ファイバに接続されたコネクタの
先端面を鏡面仕上げ可能な透明熱可塑性樹脂またはガラ
スで形成せしめることにより、それの光伝送率の損失の
程度をかなり向上させることができる。By forming the end surface of a connector connected to a crosslinked elastomer optical fiber from a mirror-finishable transparent thermoplastic resin or glass, the degree of loss in optical transmission rate can be significantly improved.
次に、実施例について本発明を説明する。 Next, the present invention will be explained with reference to examples.
実施例１
コア材：エチルアクリレートと２−ヒドロキシエチルメ
タクリレートとをモル比９５：５で共重合させた共重合
体（ｎｏ＝１．４７６）のへキサメチレンジイソシアネ
ート架橋物（ｎｏ ＝１．４８０）層よりなり、その径
は０ 、８ｍｍである
クラッド材： ＩＨ，ＩＨ，５Ｈ−オクタフルオロペン
チルアクリレートとジヒドロジシクロペンテニルアクリ
レートとをモル比９０ ： １０で共重合させた共重合
体の熱架橋物層よりなり、その厚みは０．１ｍｍである
上記コア材およびクラット材よりなる長さ６０ｃｍの架
橋エラストマー製光ファイバの一端側をカミソリの刃で
切断し、長さ５０ｃｍの光ファイバとした。Example 1 Core material: Hexamethylene diisocyanate crosslinked product (no = 1.480) of a copolymer (no = 1.476) obtained by copolymerizing ethyl acrylate and 2-hydroxyethyl methacrylate at a molar ratio of 95:5. Clad material consisting of layers with a diameter of 0.8 mm: A thermally crosslinked copolymer of IH, IH, 5H-octafluoropentyl acrylate and dihydrodicyclopentenyl acrylate at a molar ratio of 90:10. One end of a 60 cm long crosslinked elastomer optical fiber made of the above-mentioned core material and crat material having a thickness of 0.1 mm was cut with a razor blade to obtain an optical fiber with a length of 50 cm.
このような光ファイバの端部をコネクタ（オグラ宝石精
機製０ＰＬ−４、全長２０ｍｍ）に挿入し、端面位置を
合せて固定した。このようにして得られたコネクタ接続
架橋エラストマー製光ファイバの波長８３２ｎｍにおけ
る光伝送率を、光スペクトルアナライザ（アンリツ製タ
イプＭＳ９００２Ａ）で測定したところ一３３ｄＢであ
った。The end of such an optical fiber was inserted into a connector (0PL-4 manufactured by Ogura Jewelry Seiki, total length 20 mm), and the end faces were aligned and fixed. The optical transmission rate of the connector-connected crosslinked elastomer optical fiber thus obtained at a wavelength of 832 nm was measured with an optical spectrum analyzer (Type MS9002A manufactured by Anritsu) and was found to be -33 dB.
次に、ポリメチルメタクリレート製円柱体（直径１ｍｍ
、長さ２＋ａｍ）を、エポキシ樹脂系接着剤を用いて、
コネクタより若干先端部を突出させて固定し、ホットプ
レート（２００℃）に数秒間押し付けて先端面を鏡面と
した後、カミソリで切断した前記架橋エラストマー製光
ファイバを、その先端面に未架橋コア材用共重合体（接
着用ポリマー）の溶液を塗布、乾燥させた上、コネクタ
内に上記円柱体と接触する迄挿入した。これを、６０℃
で１０時間加熱し、接着用ポリマーを架橋させた。この
ようにして得られたコネクタ接続架橋エラストマー製光
ファイバの波長８３２ｎｎ＋における光伝送率を測定す
ると一２５ｄＢであり、８ｄＢの向上が観測された。Next, a cylindrical body made of polymethyl methacrylate (1 mm in diameter)
, length 2+am) using epoxy resin adhesive,
Fix the tip with the tip slightly protruding from the connector, press it against a hot plate (200°C) for a few seconds to make the tip surface mirror-like, then insert the crosslinked elastomer optical fiber cut with a razor into the uncrosslinked core on the tip surface. A solution of a material copolymer (adhesive polymer) was applied, dried, and then inserted into the connector until it came into contact with the cylindrical body. This at 60℃
The adhesive polymer was crosslinked by heating for 10 hours. When the optical transmission rate of the connector-connected crosslinked elastomer optical fiber thus obtained was measured at a wavelength of 832 nn+, it was -25 dB, an improvement of 8 dB was observed.
実施例２
実施例１と同様にして、カミソリの刃で切断した光ファ
イバをコネクタに挿入し、波長８３２ｎｍにおける光伝
送率が一３５ｄＢのコネクタ接続架橋エラストマー製光
ファイバを得た。Example 2 In the same manner as in Example 1, an optical fiber cut with a razor blade was inserted into a connector to obtain a connector-connected crosslinked elastomer optical fiber having an optical transmission rate of -35 dB at a wavelength of 832 nm.
次に、ポリメチルメタクリレート製円柱体（直径１）、
長さ２ｍｍ）を、エポキシ樹脂系接着剤を用いて、コネ
クタより若干先端部を突出させて固定し、ホットプレー
ト（２００℃）に数秒間押し付けて先端面を鏡面とした
後、カミソリで切断した前記架橋エラストマー製光ファ
イバを上記コネクタ内に挿入した。この挿入に先立ち、
未架橋コア材用共重合体をコネクタ内に注入し、エポキ
シ樹脂接着剤で封止することにより、円柱体と光ファイ
バとを固定した。このようにして得られたコネクタ接続
架橋エラストマー製光ファイバの波長８３２ｎｍにおけ
る光伝送率を測定すると一２９ｄＢであり、６ｄＢの向
上が観測された。Next, a cylindrical body made of polymethyl methacrylate (diameter 1),
(length 2 mm) was fixed using epoxy resin adhesive with the tip slightly protruding from the connector, pressed against a hot plate (200°C) for a few seconds to make the tip surface mirror-like, and then cut with a razor. The crosslinked elastomer optical fiber was inserted into the connector. Prior to this insertion,
The cylindrical body and the optical fiber were fixed by injecting an uncrosslinked core material copolymer into the connector and sealing it with an epoxy resin adhesive. When the optical transmission rate of the connector-connected crosslinked elastomer optical fiber thus obtained was measured at a wavelength of 832 nm, it was -29 dB, an improvement of 6 dB was observed.
Claims (1)
タの先端面を透明な熱可塑性樹脂またはガラスで形成せ
しめてなるコネクタ接続光ファイバ。 ２、コネクタの先端部に透明な熱可塑性樹脂製またはガ
ラス製の柱状体を固定し、先端面を鏡面仕上げした後、
コネクタの他端部側から挿入された架橋エラストマー製
光ファイバを前記柱状体とコネクタ内で接着させること
を特徴とするコネクタ接続光ファイバの製造法。 ３、コネクタの先端部に透明な熱可塑性樹脂製またはガ
ラス製の柱状体を固定し、コネクタの他端部側から挿入
された架橋エラストマー製光ファイバを前記柱状体とコ
ネクタ内で接着した後、柱状体の先端面を鏡面仕上げす
ることを特徴とするコネクタ接続光ファイバの製造法。[Claims] 1. A connector-connected optical fiber in which the distal end surface of a connector connected to a crosslinked elastomer optical fiber is made of transparent thermoplastic resin or glass. 2. After fixing a columnar body made of transparent thermoplastic resin or glass to the tip of the connector and finishing the tip with a mirror finish,
A method for manufacturing a connector-connected optical fiber, which comprises bonding a crosslinked elastomer optical fiber inserted from the other end of the connector to the columnar body within the connector. 3. After fixing a columnar body made of transparent thermoplastic resin or glass to the tip of the connector, and adhering a crosslinked elastomer optical fiber inserted from the other end of the connector to the columnar body within the connector, A method for manufacturing a connector-connected optical fiber characterized by mirror-finishing the end surface of a columnar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11382290A JPH049906A (en) | 1990-04-27 | 1990-04-27 | Connector connected optical fiber and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11382290A JPH049906A (en) | 1990-04-27 | 1990-04-27 | Connector connected optical fiber and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH049906A true JPH049906A (en) | 1992-01-14 |
Family
ID=14621917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11382290A Pending JPH049906A (en) | 1990-04-27 | 1990-04-27 | Connector connected optical fiber and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH049906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026009762A1 (en) * | 2024-07-05 | 2026-01-08 | 古河電気工業株式会社 | Connector-equipped optical fiber and method for manufacturing connector-equipped optical fiber |
-
1990
- 1990-04-27 JP JP11382290A patent/JPH049906A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026009762A1 (en) * | 2024-07-05 | 2026-01-08 | 古河電気工業株式会社 | Connector-equipped optical fiber and method for manufacturing connector-equipped optical fiber |
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