JPS58171019A - Optical fiber branching device - Google Patents

Optical fiber branching device

Info

Publication number
JPS58171019A
JPS58171019A JP57054291A JP5429182A JPS58171019A JP S58171019 A JPS58171019 A JP S58171019A JP 57054291 A JP57054291 A JP 57054291A JP 5429182 A JP5429182 A JP 5429182A JP S58171019 A JPS58171019 A JP S58171019A
Authority
JP
Japan
Prior art keywords
optical fiber
wedge
light
core
branching device
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
JP57054291A
Other languages
Japanese (ja)
Inventor
Kuninori Okamoto
岡本　晋典
Yoshiaki Kanbe
祥明 神戸
Koji Yamashita
耕司 山下
Hiroo Inoue
博夫 井上
Hitoshi Miyashita
宮下　均
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP57054291A priority Critical patent/JPS58171019A/en
Publication of JPS58171019A publication Critical patent/JPS58171019A/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
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2852—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using tapping light guides arranged sidewardly, e.g. in a non-parallel relationship with respect to the bus light guides (light extraction or launching through cladding, with or without surface discontinuities, bent structures)
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4256—Details of housings
    • G02B6/4257—Details of housings having a supporting carrier or a mounting substrate or a mounting plate
    • G02B6/4259—Details of housings having a supporting carrier or a mounting substrate or a mounting plate of the transparent type
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
    • G02B6/4289—Optical modules with tapping or launching means through the surface of the waveguide by inducing bending, microbending or macrobending, to the light guide

Abstract

PURPOSE:To provide a light branch output part or light input part at an optional position of a plastic optical fiber by fitting a light emitting element or photodetecting element in contact with the top surface of a wedge made of wedgelike transparent glass having an acute angle atop. CONSTITUTION:The transparent wedge 9 has the acute angle atop and on its top surface, the light emitting element or photodetecting element 10 is fitted in a protection cover 11. The optical fiber 3, on the other hand, is made of plastics having a relatively large core 6 and consists of the core 6, a clad 7, and a sheath 8 for protection. When the transparent wedge 9 is pressed in the optical fiber 3 from the sheath 8, the tip of the wedge 9 enters the clad 7 and core 6 successively to guide part of light which travels in the core 6 out of the fiber through the wedge 9. The guided-out amount of the light is controlled by adjusting the insertion extent of the wedge 9 into the core 6.

Description

【発明の詳細な説明】 本発明は、プラスチック光ファイバの任意の位置に、光
分岐出力部又は光入力部を設けることが可能な光フアイ
バ分岐装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical fiber branching device that can provide an optical branching output section or an optical input section at any position of a plastic optical fiber.

第１図は分岐の必要な光フアイバ伝送系を示す構成図で
、中央制御システム１よりの電気信号は、本体送受信器
２に送られ、電気信号を光信号に変換し、光フアイバー
３ａ中に注入送光する０この元信号は光分岐器４ａによ
ね分岐されて端末器５に導入され、復調されて該端末器
５に接続された負荷を制御する。又、この制御の状態は
別の光ケーブルより送出され、上記分岐器４ａと同様の
分岐器４ｂを通って光ファイバ３ｂに注入され、本体送
受信−１に返送され為。この信号により中央制御システ
ム１で各端末の状態の確認が可能である・本発明は、上
述の光分岐をプラスチック光ファイバの任意の位置に設
置可能にした分岐装置の構造に関するもので、第２図は
本発明に係る光ファイバ分岐装置の使用状態を示す。本
発明に係る分岐装置が使用可能な光ファイバ３は、比較
的大口のロアロを有す為プラスチック製のもので、一般
的構造として、中心部よりコア６、クラツドテ、保−用
外皮Ｂ　（ポリエチレン）のものが多（用−られる。FIG. 1 is a configuration diagram showing an optical fiber transmission system that requires branching. Electrical signals from the central control system 1 are sent to the main transceiver 2, which converts the electrical signals into optical signals and connects them to the optical fibers 3a. This original signal of 0 to be injected and transmitted is branched by the optical splitter 4a, introduced into the terminal device 5, demodulated, and controls the load connected to the terminal device 5. Also, this control state is sent out from another optical cable, passed through a branch 4b similar to the branch 4a, and injected into the optical fiber 3b, and then returned to the main transmitter/receiver-1. This signal allows the central control system 1 to check the status of each terminal.The present invention relates to the structure of a branching device that allows the above-mentioned optical branch to be installed at any position on a plastic optical fiber. The figure shows the state in which the optical fiber branching device according to the present invention is used. The optical fiber 3 that can be used with the branching device according to the present invention has a relatively large lower diameter and is therefore made of plastic.The general structure includes a core 6, a cladding end, and a protective outer jacket B (polyethylene ) are often used.

今、上記外皮８上よ抄第２図に示す如き、ガラス等から
成為透明くさび９を圧入すると、該くさび９の先端は、
外皮８からクラッド７、コア６へと入１て行＜（１１８
図参照）。ソし”ｔ”、　１１８１１（ｅ）に示す状ｍ
ｔで透明くさび９が圧入され為と、：Ｉアロを伝播して
ｂる光の一部が、該くさび９内に入妙外部に取抄出しが
可能となる（＠４１１参照）０光の取り出し量は、上記
〈さび９のコア６への差送量を調節することによ動可能
であ）、端末器纂（１１１図、参照）にお−て必要な光
量になるように調節する。Now, when a transparent wedge 9 made of glass or the like is press-fitted onto the outer skin 8 as shown in FIG. 2, the tip of the wedge 9 will be
From the outer skin 8 to the cladding 7 to the core 6, line 1 <(118
(see figure). ``t'', as shown in 11811(e)
Because the transparent wedge 9 is press-fitted at t, a part of the light propagating through I can be extracted outside the wedge 9 (see @411). The amount of light taken out can be adjusted by adjusting the amount of light sent to the core 6 of the rust 9 as described above, and is adjusted to the required amount of light in the terminal assembly (see Figure 111). .

第５図は本発明にかかる分岐装置の一実施例を示すもの
で、透明なガラスあ為すはフィルターガラス等から成る
透明くさび９は、同図（ト）に示すように先端が鋭角の
くさび形状であり、該〈さび・の上面には発光素子又は
受光素子論が保護カバー１１内に取付性られ；光ファイ
バよりの光の取艶出し、あるいは光ファイバへの光の注
入を可能として−る。尚、実施例においては、〈さび９
はくさび形状としたが針状であって亀よりのは勿論であ
るＯ このように、本発明に係ゐ分岐装置をプラスチック光フ
ァイ−（に用いれば、光ファイバの任意の位置で光分岐
あるいは光注入注出が極めて容易に可能となる◎壕九、
〈さび９のコア６への差込量を調節す為ことにより、光
ファイバへの注入量ある偽は光ファイバからの注出量を
任意に費えることが可能となる。FIG. 5 shows an embodiment of the branching device according to the present invention, in which a transparent wedge 9 made of transparent glass or filter glass has a wedge shape with an acute tip as shown in FIG. A light emitting element or a light receiving element is attached to the upper surface of the rust plate within the protective cover 11; it is possible to polish light from the optical fiber or to inject light into the optical fiber. . In addition, in the examples, <rust 9
In this way, if the branching device according to the present invention is used in a plastic optical fiber, the light can be branched or split at any position of the optical fiber. Light injection and pouring becomes possible extremely easily.
By adjusting the amount of the rust 9 inserted into the core 6, it becomes possible to arbitrarily control the amount injected into the optical fiber or the amount ejected from the optical fiber.

崗、かか為分岐装置を複数個用いれば、複数個所におけ
る光分岐等が容易にでき、最′適な光配分ができる０壇
え、〈さび９の形状、圧入方向によ秒、光フアイバ中の
光の方向性を持たせにとが可能となる◎更に、〈さび９
圧入時にくさび９を加熱して光ファイバの溶融点近くで
行うことにより、光ファイバ及び％（さび９の破損を防
止できる。★た。コア６とくさび９の屈折率を変え石こ
とによ）取り出し効率を変えることができ、〈さび９を
特定の色を通すフィルターガラスを用Ｌｎ為ことにより
、特定の波長のみの取り出しが可能となる等の付加的効
果を有する。By using multiple optical fiber branching devices, it is possible to easily branch light at multiple locations, and to achieve optimal light distribution. It becomes possible to give directionality to the light inside.
By heating the wedge 9 during press-fitting near the melting point of the optical fiber, damage to the optical fiber and the wedge 9 can be prevented. The extraction efficiency can be changed, and by using a filter glass that allows specific colors to pass through the rust 9, it has additional effects such as being able to extract only specific wavelengths.

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

第１図は光フアイバ伝送系の構成図％１１２図は本発明
にかかる光フアイバ分岐装置の使用状態を示す図、ＳＳ
図（ａ）〜（ｅ）は同上の要部断面図、第４図は同上の
縦断面図、！５図（ａ）、（ｂ）は本発明の一実施例わ
糸す一部切欠断面図である。 第１図 ｊＩ２図 ｆｓ３図 ４ｍ 第５図 （（１）　　　　　　　　（Ｃ） 手続補正書（転） 昭和５７年　８月　６日 昭和５７年帽１第０５４２９１号 ２、発明の名称 光フアイバ分岐装置 ３、補正をする者 事件との関係　　　特酌丑ｌυ、 住　　所　　　　大阪府門真市大字門真１０４８番地名
　称（５８３）松下電工株式会社 代表考　　　　　小　　林　　　　　　郁４、代理人 住所　□Ｗ糟慎１０４８駒 ５、補正命令の日（寸　　昭和５７年　７月２７日（発
送日）６、補正の対象Figure 1 is a block diagram of an optical fiber transmission system. Figure 112 is a diagram showing the state of use of the optical fiber branching device according to the present invention. SS
Figures (a) to (e) are sectional views of essential parts of the same as above, and Figure 4 is a longitudinal sectional view of the same as above. 5(a) and 5(b) are partially cutaway sectional views of the warp thread according to an embodiment of the present invention. Figure 1 j I Figure 2 fs 3 Figure 4 m Figure 5 ((1) (C) Procedural amendment (transfer) August 6, 1982 Cap 1 No. 054291 2, Title of invention Optical fiber branching device 3, Relationship with the person making the amendment: Special consideration, Address: 1048 Kadoma, Kadoma City, Osaka Name: (583) Matsushita Electric Works Co., Ltd. Representative: Iku Kobayashi 4, Agent address: □W Kashin 1048 Koma 5, Date of amendment order (date: July 27, 1981 (shipment date) 6, subject of amendment

Claims (1)

【特許請求の範囲】[Claims] （１）　　先端が鋭角のくさび形状をした透明ガラスよ
り成るくさびと、該くさびの上面に当接して取付けられ
た発光素子あるいは受光素子とより成る光フアイバ分岐
装置Ｃ(1) Optical fiber branching device C consisting of a wedge made of transparent glass with an acute wedge shape at the tip, and a light emitting element or a light receiving element attached in contact with the upper surface of the wedge.
JP57054291A 1982-03-31 1982-03-31 Optical fiber branching device Pending JPS58171019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57054291A JPS58171019A (en) 1982-03-31 1982-03-31 Optical fiber branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57054291A JPS58171019A (en) 1982-03-31 1982-03-31 Optical fiber branching device

Publications (1)

Publication Number Publication Date
JPS58171019A true JPS58171019A (en) 1983-10-07

Family

ID=12966458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57054291A Pending JPS58171019A (en) 1982-03-31 1982-03-31 Optical fiber branching device

Country Status (1)

Country Link
JP (1) JPS58171019A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182555A2 (en) * 1984-11-16 1986-05-28 AT&T Corp. A method of providing an optical fibre mode scrambler
FR2593293A1 (en) * 1986-01-21 1987-07-24 France Etat OPTICAL COUPLER IN TE TE PERFECTED FOR APPLICATIONS TO OPTICAL BUS AND OPTICAL BUS NETWORKS WITH A PLURALITY OF SUCH COUPLERS
US4730883A (en) * 1983-11-28 1988-03-15 Kei Mori Photoradiator including light control device
WO1996007117A1 (en) * 1994-08-29 1996-03-07 Akzo Nobel N.V. Connector for polymeric optical waveguide structures
EP1417522A1 (en) * 2001-07-24 2004-05-12 The Government of the United States of America as represented by the Secretary of the Navy Method for coupling light into cladding-pumped fiber sources using an embedded mirror
EP1505417A1 (en) * 2003-08-05 2005-02-09 Agilent Technologies, Inc. Low cost optical interconnect for fiber optic system
EP2707766A4 (en) * 2011-05-10 2015-07-08 Invensys Sys Inc Multi-drop optical communication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52111734A (en) * 1976-03-16 1977-09-19 Patelhold Patentverwertung Optical fiber ttcoupler
JPS538830U (en) * 1976-07-07 1978-01-25
JPS5685703A (en) * 1979-12-14 1981-07-13 Fujitsu Ltd Production of branching circuit
JPS56111811A (en) * 1980-02-11 1981-09-03 Toshiba Corp Light signal branching device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52111734A (en) * 1976-03-16 1977-09-19 Patelhold Patentverwertung Optical fiber ttcoupler
JPS538830U (en) * 1976-07-07 1978-01-25
JPS5685703A (en) * 1979-12-14 1981-07-13 Fujitsu Ltd Production of branching circuit
JPS56111811A (en) * 1980-02-11 1981-09-03 Toshiba Corp Light signal branching device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730883A (en) * 1983-11-28 1988-03-15 Kei Mori Photoradiator including light control device
EP0182555A2 (en) * 1984-11-16 1986-05-28 AT&T Corp. A method of providing an optical fibre mode scrambler
EP0182555B1 (en) * 1984-11-16 1992-09-09 AT&T Corp. A method of providing an optical fibre mode scrambler
FR2593293A1 (en) * 1986-01-21 1987-07-24 France Etat OPTICAL COUPLER IN TE TE PERFECTED FOR APPLICATIONS TO OPTICAL BUS AND OPTICAL BUS NETWORKS WITH A PLURALITY OF SUCH COUPLERS
WO1996007117A1 (en) * 1994-08-29 1996-03-07 Akzo Nobel N.V. Connector for polymeric optical waveguide structures
EP1417522A1 (en) * 2001-07-24 2004-05-12 The Government of the United States of America as represented by the Secretary of the Navy Method for coupling light into cladding-pumped fiber sources using an embedded mirror
EP1417522A4 (en) * 2001-07-24 2006-08-02 Us Gov Sec Navy Method for coupling light into cladding-pumped fiber sources using an embedded mirror
EP1505417A1 (en) * 2003-08-05 2005-02-09 Agilent Technologies, Inc. Low cost optical interconnect for fiber optic system
JP2005055907A (en) * 2003-08-05 2005-03-03 Agilent Technol Inc Optical interconnect device
US7020362B2 (en) 2003-08-05 2006-03-28 Jonathan Simon Low cost optical interconnect for fiber optic system
EP2707766A4 (en) * 2011-05-10 2015-07-08 Invensys Sys Inc Multi-drop optical communication

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