JPS61102604A - Optical connector - Google Patents

Optical connector

Info

Publication number
JPS61102604A
JPS61102604A JP59224882A JP22488284A JPS61102604A JP S61102604 A JPS61102604 A JP S61102604A JP 59224882 A JP59224882 A JP 59224882A JP 22488284 A JP22488284 A JP 22488284A JP S61102604 A JPS61102604 A JP S61102604A
Authority
JP
Japan
Prior art keywords
optical
optical fiber
terminal
etching
optical connector
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
Application number
JP59224882A
Other languages
Japanese (ja)
Inventor
Katsuhiro Tezuka
手塚　克裕
Kaoru Umeki
梅木　薫
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP59224882A priority Critical patent/JPS61102604A/en
Publication of JPS61102604A publication Critical patent/JPS61102604A/en
Pending legal-status Critical Current

Links

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
    • G02B6/3821—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 axial spring biasing or loading means
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To decrease optical loss by constituting terminal parts of a material having the etching rate higher than the etching rate of an optical fiber, projecting the end faces of the optical fibers by an etching treatment slightly from the terminal parts and butting the end faces to each other. CONSTITUTION:The terminal part 2 is constituted of the material which is more easily etched than the optical fiber 1. The end face of the optical fiber 1 and the terminal part 2 are polished to a specular surface state and are formed flush with each other. The end part is dipped for specified time in an etching liquid 3, then the end of the terminal part 2 projects slightly from the end of the terminal part 2 and a projecting part 5 is formed. The length of the projection is adjusted by the dipping time in the etching liquid. A pair of the optical fibers 1 and the terminal parts 2 having such end shapes are butted to each other and a precision sleeve 4 is packaged thereto, by which an optical connector is constituted. The space between the fibers 1 is therefore eliminated, by which the optical loss by the Fresnel reflection is decreased and operability is improved. The long-term stability is thus assured.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、光フアイバ同士を結合する光コネクタに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an optical connector for coupling optical fibers together.

〈従来の技術〉 従来、光ファイバとこれを保持する端末部とから構成さ
れた光７アイパにおいて、光７アイパ同士を接続する場
合、反射光強度の変動をおさえ、安定した接続損失を得
る必要上、光７アイパ端面の間隔を数ミクロン（μｍ）
程度離れるようにしである。<Conventional technology> Conventionally, when connecting optical 7-eyepers that are composed of optical fibers and terminal parts that hold them, it is necessary to suppress fluctuations in reflected light intensity and obtain stable connection loss. Above, the distance between the optical 7 eyeper end faces is several microns (μm).
Try to keep some distance from each other.

しかしながら、その間隔があるため接続部でフレネル反
射による損失が生じるという欠点があった。このため、
フレネル反射による損失を低減させる方策として、光フ
ァイバの屈折率と略等しい屈折率を有するマツチングオ
イルを使用する技術がある。しかしながら、かかる技術
によれば、操作性が悪く、また長期安定性に欠けるとい
う問題点があった。However, due to the spacing, there was a drawback that loss due to Fresnel reflection occurred at the connection portion. For this reason,
As a measure to reduce loss due to Fresnel reflection, there is a technique of using a matching oil having a refractive index substantially equal to the refractive index of the optical fiber. However, this technique has problems such as poor operability and lack of long-term stability.

〈解決すべき問題点〉 本発明は、フレネル反射による損失をなくすと共に、操
作性が良好で、長期安定性を有する光コネクタを提供す
るものである。<Problems to be Solved> The present invention provides an optical connector that eliminates loss due to Fresnel reflection, has good operability, and has long-term stability.

〈問題点の解決手段〉 本発明に係る光コネクタの構成は、光ファイバとこれを
保持固定する端末部とからなる光コネクタｌ′ｃおいて
、上記端末部を上記光ファイバに比しエツチング速度の
大きい材質を以って構成し、エツチング処理により上記
光７アイパの端面を端末部の端面より僅少突出させてな
るものである。<Means for Solving Problems> The structure of the optical connector according to the present invention is that in an optical connector l'c consisting of an optical fiber and a terminal portion for holding and fixing the optical fiber, the etching speed of the terminal portion is lower than that of the optical fiber. The end face of the optical 7 eyer is slightly protruded from the end face of the terminal portion by etching.

〈実施例〉 次に、本発明の一実施例につき図面を参照しつつ説明す
る、 第１図は、本発明に係る光コネクタの一実施例を示す縦
断面図である。<Embodiment> Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view showing an embodiment of the optical connector according to the present invention.

第２図は、同実施例の製造手順を示す図であり、（Ａ）
　ｒｉ光コネクタの端末部分を示す縦断面図、（Ｂ）は
（Ａ）の光コネクタの端末部分をエツチング液に浸漬し
ている状態を示す図、及び（Ｃ）　Ｆｉエツチング処理
後の光コネクタの端末部分を示す縦断面図である。FIG. 2 is a diagram showing the manufacturing procedure of the same example, (A)
(B) is a longitudinal cross-sectional view showing the terminal portion of the RI optical connector; (B) is a diagram showing the terminal portion of the optical connector in (A) immersed in an etching solution; and (C) is a diagram showing the optical connector after Fi etching treatment. It is a longitudinal cross-sectional view showing a terminal portion.

第１図において、光ファイバ１＃：を端末部２によって
保持されており、その端末部２の材質は、光ファイバ１
よりエツチングされ易い（エツチング速度が大きい〕材
質で構成されている。端面は、まず第２図（Ａ）に示す
如く、鏡面状に研磨されて、光７アイパ１の端面と端末
部２の端面とは面一となり平坦に形成される。この後、
第２図（Ｂ）に示す如く、光７アイバ１と端末部２の端
部をエツチング液３に一定時間浸漬せしめる。この場合
、端末部２は光ファイバ１よりエツチング速度の大きな
材質で構成せられているため、端末部２の端部は光ファ
イバ１の端部に比し多く浸食されて、第２図（Ｃ）に示
す如く、光７アイパ１の端部は相対的に端末部２の端部
より突出して数ミクロン（μｍ）の凸状部５が形成され
る。ここで、光ファイバ１の突出量はエツチング液の浸
漬時間を適宜変更することによ秒調整することができる
。In FIG. 1, the optical fiber 1#: is held by the terminal part 2, and the material of the terminal part 2 is the same as that of the optical fiber 1.
It is made of a material that is more easily etched (has a high etching speed).The end faces are first polished to a mirror finish, as shown in FIG. It is flush with and formed flat.After this,
As shown in FIG. 2(B), the ends of the optical fiber 1 and the end portion 2 are immersed in an etching solution 3 for a certain period of time. In this case, since the terminal part 2 is made of a material with a higher etching speed than the optical fiber 1, the end part of the terminal part 2 is more eroded than the end part of the optical fiber 1, as shown in FIG. ), the end of the optical 7 eyer 1 protrudes relatively from the end of the terminal portion 2, and a convex portion 5 of several microns (μm) is formed. Here, the amount of protrusion of the optical fiber 1 can be adjusted in seconds by appropriately changing the immersion time in the etching solution.

かかる端部形状の光ファイバ１及び端末部２を一対突き
合せて精密スリーブ４を実装することにより光コネクタ
が構成される（第１図参照）。An optical connector is constructed by matching a pair of optical fibers 1 and terminal portions 2 having such end shapes and mounting a precision sleeve 4 (see FIG. 1).

したがって、本実施例光コネクタによれば、光フアイバ
１相互の間隔がなくなり、かくして無反射の状態で光伝
送が可能となる。Therefore, according to the optical connector of this embodiment, there is no space between the optical fibers 1, and thus optical transmission is possible without reflection.

〈発明の効果〉 以上、説明したように、本発明に係る光コネクタ【よれ
ば、光ファイバとこれを保持固定する端末部とからなる
光コネクタにおいて、上記端末部を上記光ファイバに比
しエツチング速度の大きい材質を以って構成し、エツチ
ング処理により上記光ファイバの端面を端末部の端面よ
り僅少突出させてなるものであるから、突出した光ファ
イバの端部同士を突き合せることにより、両者の間に間
隙がなくなり、したがって、７レネル反射による光損失
が低減すると共にレーザ光源への悪影響も緩和され、ま
た操作性が良好で、長期安定性を有するという効果を奏
する。<Effects of the Invention> As described above, in the optical connector according to the present invention, in the optical connector consisting of an optical fiber and a terminal portion for holding and fixing the optical fiber, the terminal portion is etched compared to the optical fiber. It is made of a material with high speed, and the end face of the optical fiber is made to slightly protrude from the end face of the terminal part by etching process, so by butting the protruding ends of the optical fiber together, both There is no gap between the two, thus reducing optical loss due to 7-Renel reflection, alleviating adverse effects on the laser light source, and providing good operability and long-term stability.

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

第１図は、本発明に係る光コネクタの一実施例を示す縦
断面図である。 第２図は、同実施例の製造手順を示す図であり、（Ａ）
は光コネクタの端末部分を示す縦断面図、（Ｂ）は（Ａ
）の光コネクタの端末部分をエツチング液に浸漬してい
る状態を示す図、及び（Ｃ）はエツチング処理後の光コ
ネクタの端末部分を示す縦断面図である。 １ｉ−光７アイバ　　　　２・・・端末部３・・・エツ
チング液　　　４・・・精密スリーブ５・・・凸状部 出顕入　　日本電気株式会社FIG. 1 is a longitudinal sectional view showing an embodiment of an optical connector according to the present invention. FIG. 2 is a diagram showing the manufacturing procedure of the same example, (A)
is a vertical cross-sectional view showing the terminal part of the optical connector, (B) is (A
) is a diagram showing a state in which the end portion of the optical connector is immersed in an etching solution, and (C) is a vertical sectional view showing the end portion of the optical connector after etching treatment. 1i-Hikari 7 eye bar 2... Terminal part 3... Etching liquid 4... Precision sleeve 5... Convex part projection/injection NEC Corporation

Claims (1)

【特許請求の範囲】[Claims] 光ファイバとこれを保持固定する端末部とからなる光コ
ネクタにおいて、前記端末部を前記光ファイバに比しエ
ッチング速度の大きい材質を以つて構成し、エッチング
処理により前記光ファイバの端面を前記端末部の端面よ
り僅少突出させてなることを特徴とする光コネクタ。In an optical connector consisting of an optical fiber and a terminal portion for holding and fixing the optical fiber, the terminal portion is made of a material having a higher etching speed than the optical fiber, and the end face of the optical fiber is etched to form the terminal portion. An optical connector characterized by projecting slightly from the end face of the optical connector.
JP59224882A 1984-10-25 1984-10-25 Optical connector Pending JPS61102604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59224882A JPS61102604A (en) 1984-10-25 1984-10-25 Optical connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59224882A JPS61102604A (en) 1984-10-25 1984-10-25 Optical connector

Publications (1)

Publication Number Publication Date
JPS61102604A true JPS61102604A (en) 1986-05-21

Family

ID=16820645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59224882A Pending JPS61102604A (en) 1984-10-25 1984-10-25 Optical connector

Country Status (1)

Country Link
JP (1) JPS61102604A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423209A (en) * 1987-07-20 1989-01-25 Fujitsu Ltd Optical fiber connector
EP0346232A2 (en) * 1988-06-10 1989-12-13 France Telecom Process and system for joining optical fibres without Fresnel-reflection, variable optical attenuator and system, using the same for measurement of the influence of the reflection-rate on an optical line
JPH0318805A (en) * 1989-05-31 1991-01-28 Amp Inc Optical fiber connector and manufacture thereof
WO1998016857A1 (en) * 1996-10-16 1998-04-23 The Furukawa Electric Co., Ltd. Optical connector, method of setting protruding length of optical fiber of the optical connector, and jig therefor
WO1998034136A1 (en) * 1997-02-03 1998-08-06 Siemens Aktiengesellschaft Method for preparing terminals of an optical fiber
JP2015099329A (en) * 2013-11-20 2015-05-28 住友ベークライト株式会社 Optical waveguide, opto-electric hybrid board and electronic equipment

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423209A (en) * 1987-07-20 1989-01-25 Fujitsu Ltd Optical fiber connector
EP0346232A2 (en) * 1988-06-10 1989-12-13 France Telecom Process and system for joining optical fibres without Fresnel-reflection, variable optical attenuator and system, using the same for measurement of the influence of the reflection-rate on an optical line
US4986627A (en) * 1988-06-10 1991-01-22 Etat Francais (Centre National d'Etudes des Telecommunications) Method for connecting optical fibres without Fresnel reflection and system thus detained, variable optical attenuator and system using this attenuator to measure the effect of the reflection coeficient on an optical line
JPH0318805A (en) * 1989-05-31 1991-01-28 Amp Inc Optical fiber connector and manufacture thereof
WO1998016857A1 (en) * 1996-10-16 1998-04-23 The Furukawa Electric Co., Ltd. Optical connector, method of setting protruding length of optical fiber of the optical connector, and jig therefor
GB2324384A (en) * 1996-10-16 1998-10-21 Furukawa Electric Co Ltd Optical connector, method of setting protruding length of optical fiber of the optical connector, and jig therefor
US6089759A (en) * 1996-10-16 2000-07-18 The Furukawa Electric Co. Ltd. Optical connector and method of and fixture for setting projection length of optical fiber
GB2324384B (en) * 1996-10-16 2001-07-11 Furukawa Electric Co Ltd Method of and fixture for setting projection length of optical fiber
WO1998034136A1 (en) * 1997-02-03 1998-08-06 Siemens Aktiengesellschaft Method for preparing terminals of an optical fiber
JP2015099329A (en) * 2013-11-20 2015-05-28 住友ベークライト株式会社 Optical waveguide, opto-electric hybrid board and electronic equipment

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