JPS6022106A - Optical demultiplexer and multiplexer - Google Patents
Optical demultiplexer and multiplexerInfo
- Publication number
- JPS6022106A JPS6022106A JP13031783A JP13031783A JPS6022106A JP S6022106 A JPS6022106 A JP S6022106A JP 13031783 A JP13031783 A JP 13031783A JP 13031783 A JP13031783 A JP 13031783A JP S6022106 A JPS6022106 A JP S6022106A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cable
- guide member
- light guide
- end surface
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 22
- 239000013307 optical fiber Substances 0.000 claims abstract description 68
- 238000003860 storage Methods 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- G02B6/26—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
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は量産性に優れ、且つ光損失の小さい光分岐・
結合器に関するものである。[Detailed Description of the Invention] This invention is an optical branching system that is excellent in mass production and has low optical loss.
This relates to couplers.
従来の光分岐・結合器としては例えば、複数本の多ボー
ト側光ファイバケーブルを一端部で束ね。For example, a conventional optical branching/coupling device bundles multiple multi-board side optical fiber cables at one end.
その結束部の端面を１本の単ボート側光ファイバケーブ
ルの端面に接着剤等で接着することにより、複数本の多
ボート側光ファイバケーブルと１本の単ボート側光ファ
イバケーブルとを連結するようにしたものがあった。By bonding the end face of the bundled portion to the end face of one single boat side optical fiber cable with an adhesive or the like, the plurality of multi-boat side optical fiber cables and one single boat side optical fiber cable are connected. There was something like that.
ところが、このような従来の光分岐・結合器にあっては
、接着剤が硬化するまでの間、多ポート側光ファイバケ
ーブルおよび単ボート側光ファイバケーブルを端面どお
しを密着させた状態でジグに固定して放置しておかなけ
ればならないため、大きな作業スペースを要するととも
に、作業の流れは悪く、量産には不向きであった。However, with such conventional optical branching/coupling devices, the multi-port side optical fiber cable and the single-port side optical fiber cable are left in close contact with their end faces until the adhesive hardens. Since it had to be fixed to a jig and left unattended, it required a large work space and had a poor work flow, making it unsuitable for mass production.
また、多ボート側光ファイバケーブルと単ボート側光フ
ァイバケーブルとの位置合わせも難しく、その作業は慎
重を要するものであることも生産効率の向上を妨げる要
因となっていた。Furthermore, it is difficult to align the optical fiber cables on the multi-boat side and the optical fiber cables on the single-boat side, and the work requires careful attention, which has also been a factor hindering improvement in production efficiency.
この発明はかかる問題点に鑑みてなされたものであり、
量産性を向上させ、あわせて光損失を極力防止するよう
にした光分岐・結合器を提供することを目的としている
。This invention was made in view of such problems,
The object of the present invention is to provide an optical branching/coupling device that improves mass productivity and prevents optical loss as much as possible.
この目的を達成するため、この発明は、一端部にプラグ
が装着された１本の単ボート側光ファイバケーブルと、
いずれが一方の端面がら受けた光を他方の端面より出射
させる導光部材と、複数本の多ポート側光ファイバケー
ブルが一端部で結束され、且つその結束部にスリーブが
装着されてなる光フアイバケーブル束とが別体に形成さ
れ、導光部材の一端側およびプラグは導光部材の一端面
と単ポート側光ファイバケーブルのプラグ側端面とが相
対向するようにリセプタクルの貫通孔内に挿入されて連
結され、導光部材の他端側およびスリーブは導光部材の
他端面と光フアイバケーブル束の結束部端面とが相対向
するようにホルダの貫通孔内に挿入されて連結され、リ
セプタクルおよびホルダはケースの部品収納部に収納さ
れている構成の光分岐・結合器としている。To achieve this objective, the present invention comprises a single boat-side fiber optic cable with a plug attached to one end;
A light guide member that receives light from one end face and emits the light from the other end face, and an optical fiber in which a plurality of multi-port side optical fiber cables are bundled at one end and a sleeve is attached to the bundled part. The cable bundle is formed separately, and the one end side of the light guide member and the plug are inserted into the through hole of the receptacle so that the one end face of the light guide member and the plug side end face of the single port side optical fiber cable face each other. The other end side of the light guide member and the sleeve are inserted into the through hole of the holder and connected so that the other end face of the light guide member and the end face of the bundle of the optical fiber cable bundle face each other, and the sleeve is connected to the receptacle. The holder is an optical branching/combining device that is housed in the parts storage section of the case.
以下、この発明を図面に基づいて説明する。The present invention will be explained below based on the drawings.
第１図〜第４図はこの発明に係る光分岐・結合器の一実
施例を示す図である。図中、１は単ポート側光ファイバ
ケーブルであり、その一端部１ａにはプラグ２が装着さ
れ、プラグ側端面１ｂはプラグ２の先端面に一致してい
る。、３はリセプタクルであｊ、”プラグ挿入孔３ｄと
導光部材ユニット挿入孔３ｅとが連通してなる貫通孔３
ｃを有し、プラグ挿入孔３ｄ側にはプラグ２が挿着され
るプラグ保持部３ａが形成されている。プラグ保持部３
ａはその内部に、径方向に押し広げることのできる環状
の係着バネ３ｂを有する構造となっており、プラグ２が
挿入されると、その係着バネ３ｂがプラグ２の先端突起
部２ａの基端部に形成された環状溝部２ｂ内に嵌入して
プラグ２の脱落を防止するようになっている。４は導光
部材ユニットであり、貫通孔を有する導光部材ケース５
と、導光部材ケース５の貫通孔内に挿着された導光部材
６とから構成されている。また、導光部材６の端面６ａ
、 ６ｂは導光部材ケース５の各端面に・一致している
。導光部材６はいずれか一方の端面から受けた光を他方
の端面より出射させるものであって、ここでは光ファイ
バが用いられている。７はホルダであり、スリーブ挿入
孔７ｂと導光部材ユニット挿入孔７ｃとが連通してなる
貫通孔７ａを有している。１１は光フアイバケーブル束
であって、以下に述べるような構成となっている。1 to 4 are diagrams showing an embodiment of the optical branching/coupling device according to the present invention. In the figure, reference numeral 1 denotes a single-port optical fiber cable, a plug 2 is attached to one end 1a of the cable, and a plug-side end surface 1b coincides with the tip surface of the plug 2. , 3 is a receptacle j, a through hole 3 in which the plug insertion hole 3d and the light guide member unit insertion hole 3e communicate with each other.
A plug holding portion 3a into which the plug 2 is inserted is formed on the side of the plug insertion hole 3d. Plug holding part 3
a has a structure in which it has an annular locking spring 3b that can be expanded in the radial direction, and when the plug 2 is inserted, the locking spring 3b engages the tip projection 2a of the plug 2. The plug 2 is fitted into an annular groove 2b formed at the base end to prevent the plug 2 from falling off. 4 is a light guide member unit, which includes a light guide member case 5 having a through hole.
and a light guide member 6 inserted into a through hole of the light guide member case 5. Moreover, the end surface 6a of the light guide member 6
, 6b coincide with each end face of the light guide member case 5. The light guide member 6 receives light from one end face and emits the light from the other end face, and an optical fiber is used here. A holder 7 has a through hole 7a in which a sleeve insertion hole 7b and a light guide member unit insertion hole 7c communicate with each other. Reference numeral 11 denotes an optical fiber cable bundle, which has a configuration as described below.
すなわち、８は複数本の多ボート側光ファイバケーブル
であり、９はその一端部が結束された結束部であって、
その結束部９には鍔部１０ａを有するスリーブ１０が装
着されており、結束部端面９ａはスリーブ１０の先端面
に一致している。結束部端面９ａは第３図に示すように
なっており、多ポート側光ファイバケーブル８．８，８
の各端面８ａ、 ８ａ、 ８ａは相等しい中心角をもつ
扇形端面になっていて、互いに平らな側面で密着されて
いる。 ８ｂはコア、８ｃはクラッドであって、Ｄｏは
コア８ｂ、 、８ｂ、 ８ｂの各偶が連結してなる円の
径（以下、コア集合部外径という、）を示している。That is, 8 is a plurality of multi-boat side optical fiber cables, and 9 is a binding part in which one end thereof is tied together,
A sleeve 10 having a flange 10a is attached to the binding portion 9, and the end surface 9a of the binding portion coincides with the distal end surface of the sleeve 10. The bundle end face 9a is as shown in FIG. 3, and the multi-port side optical fiber cables 8.
The respective end faces 8a, 8a, 8a are fan-shaped end faces having equal central angles, and are in close contact with each other with flat side surfaces. 8b is a core, 8c is a cladding, and Do indicates the diameter of a circle formed by connecting each of the cores 8b, , 8b, and 8b (hereinafter referred to as the outer diameter of the core gathering portion).
なお、この実施例では、導光部材６の端面６ａにおける
コア径は単ポート側光ファイバケーブル１のプラグ側端
面１ｂおけるコア径よりも大きく設定され、導光部材６
の端面６ｂにおけるコア径は光フアイバケーブル束１１
の結束部端面９ａにおけるコア集合部外径Ｄｏよりも大
きく設定されている。すなわち、導光部材６の端面６ａ
におけるコア部分は、端面６ａに対向する単ポート側光
ファイバケーブル１のプラグ側端面１ｂにおけるコア部
分を全域覆うような大きさを有し、導光部材６の端面６
ｂにおけるコア部分は端面６ｂに対向する光フアイバケ
ーブル束１１の結束部端面９ａにおけるコア部分８ｂ、
８ｂ。In this embodiment, the core diameter at the end surface 6a of the light guide member 6 is set larger than the core diameter at the plug side end surface 1b of the single port side optical fiber cable 1,
The core diameter at the end surface 6b of the optical fiber cable bundle 11 is
It is set larger than the outer diameter Do of the core gathering portion at the end face 9a of the bundled portion. That is, the end surface 6a of the light guide member 6
The core portion has a size that covers the entire core portion on the plug side end surface 1b of the single port side optical fiber cable 1 facing the end surface 6a, and
The core portion at b is the core portion 8b at the bundle end surface 9a of the optical fiber cable bundle 11 facing the end surface 6b,
8b.
８ｂを全域覆うような大きさを有している。It has a size that covers the entire area 8b.
１２は下ケースであり、部品収納部１２ａ、半円状切欠
部１２ｂ、段付半円状切欠部１２ｃ、およびネジＳが挿
通される孔１２ｄが設けられている。１３は上ケースで
あり、半円状切欠部１３ｂが設けられているほか１部品
収納部１２ａ、段付半円状切欠部１２ｃに対応する位置
にこれらと同様の図示しない部品収納部および段付半円
状切欠部が設けられている。12 is a lower case, which is provided with a component storage section 12a, a semicircular notch 12b, a stepped semicircular notch 12c, and a hole 12d into which a screw S is inserted. Reference numeral 13 designates an upper case, which is provided with a semicircular notch 13b, and a similar parts storage section (not shown) and a stepped section at positions corresponding to the one-component storage section 12a and the stepped semicircular notch 12c. A semicircular cutout is provided.
また、孔１２ｄに対応する位置には、ネジＳと螺合する
図示しないネジ部が形成されている。これら一対の上ケ
ース１３および下ケース１２は、１つのケースを構成す
る。Furthermore, a threaded portion (not shown) that is screwed into the screw S is formed at a position corresponding to the hole 12d. These pair of upper case 13 and lower case 12 constitute one case.
以上述べたネジＳ以外の各種部品は全て樹脂製である。All the various parts other than the screw S mentioned above are made of resin.
かかる部品は次のような手順で組み立てられる。Such parts are assembled in the following steps.
まず、導光部材ユニット４の一端側、すなわち端面６ａ
側をリセプタクル３の導光部材ユニット挿入孔３ｅに挿
入し、導光部材ユニット４の他端側、すなわち端面６ｂ
側をホルダ７の導光部材ユニット挿入孔７ｃに挿入して
リセプタクル３とホルダ７を合体させ、さらに光フアイ
バケーブル束１１のスリー力０をホルダ７のスリーブ挿
入孔７ｂに挿入する。First, one end side of the light guide member unit 4, that is, the end surface 6a
Insert the other end side of the light guide member unit 4 into the light guide member unit insertion hole 3e of the receptacle 3, that is, the end face 6b.
The receptacle 3 and the holder 7 are combined by inserting the optical fiber cable bundle 11 into the sleeve insertion hole 7c of the holder 7, and the optical fiber cable bundle 11 is inserted into the sleeve insertion hole 7b of the holder 7.
次に、この合体させたりセプタクル３とホルダ７とを下
ケース１２の部品収納部１２ａ内に納める。Next, the combined receptacle 3 and holder 7 are stored in the parts storage section 12a of the lower case 12.
このとき、スリー力０の基端部及び鍔部１０ａは段付半
円状切欠部１２ｃ内に嵌め込むようにし、プラグ保持部
３ａの基端部は半円状切欠部１２ｂ内に嵌め込むように
する（第２図参照）。At this time, the proximal end of the three force 0 and the flange 10a are fitted into the stepped semicircular notch 12c, and the proximal end of the plug holding part 3a is fitted into the semicircular notch 12b. (See Figure 2).
それから、上ケース１３を被せてネジＳを下ケース１２
の下方から孔１２ｄに挿通し、上ケース１３の図示しな
いネジ部にねじ込んで上ケース１３を下ケース１２に冠
着した後、外方に突出したプラグ保持部３ａに単ポート
側光ファイバケーブル１のプラグ２を挿着すれば、光分
岐・結合器の組立が完了する。Then, cover the upper case 13 and tighten the screws S to the lower case 12.
After the upper case 13 is attached to the lower case 12 by inserting it into the hole 12d from below and screwing it into the threaded part (not shown) of the upper case 13, the single port side optical fiber cable 1 is attached to the plug holding part 3a protruding outward. By inserting the plug 2, the assembly of the optical branch/coupler is completed.
このとき、単ポート側光ファイバケーブルｌのプラグ側
端面１ｂは導光部材６の一端面６ａに略密着した状態と
なり、光フアイバケーブル束１１の結束部端面９ａは導
光部材６の他端面６ｂに略密着した状態となる。At this time, the plug-side end surface 1b of the single-port side optical fiber cable l is in substantially close contact with one end surface 6a of the light guide member 6, and the bundle end surface 9a of the optical fiber cable bundle 11 is in close contact with the other end surface 6b of the light guide member 6. It will be in a state where it is almost in close contact with.
以上の組立作業は一連の流れ作業の中で行なうことがで
きるものであり、各部品を互いに係合させることで位置
合わせがなされるようになっているため、難しい位置合
わせ作業が不要となる。The above assembly work can be performed as part of a series of assembly operations, and since positioning is achieved by engaging the parts with each other, difficult positioning work is not necessary.
このようにして組み立てられた光分岐・結合器は、単ボ
ート側光ファイバケーブル１に導かれてきた光を導光部
材６ｔｉ−介して多ボート側光ファイバケーブル８，８
．８のそれぞ九に分岐させて伝送し、多ポート側光ファ
イバケーブル８，８．８にそれぞれ導かれてきた光を導
光部材６を介して単ポート側光ファイバケーブル１に結
合させて伝送する。The optical branch/coupler assembled in this way transmits the light guided to the single-boat side optical fiber cable 1 through the multi-boat side optical fiber cables 8, 8 through the light guide member 6ti.
．． 8 and 9, respectively, and the light guided to the multi-port side optical fiber cables 8, 8.8 is coupled to the single-port side optical fiber cable 1 via the light guide member 6 and transmitted. do.
この光分岐・結合器においては、導光部材６の端面６ａ
およびプラグ２はリセプタクル３の貫通孔３Ｃ内に挿入
されることにより連結され、導光部材６の端面６ｂ側お
よびスリーブ１０はホルダ７の貫通孔７ａ内に挿入され
るこ′とにより連結されているため、導光部材６の端面
６ａと単ポート側光ファイバケーブル１のプラグ側端面
１ｂとの相対位置関係および導光部材６の端面６ｂと光
フアイバケーブル束１１の結束部端面９ａとの相対位置
関係はそれぞれ適正に保たれ、使用中もほとんどずれる
ことがない。In this optical splitter/combiner, the end surface 6a of the light guide member 6
and the plug 2 are connected by being inserted into the through hole 3C of the receptacle 3, and the end surface 6b side of the light guide member 6 and the sleeve 10 are connected by being inserted into the through hole 7a of the holder 7. Therefore, the relative positional relationship between the end surface 6a of the light guide member 6 and the plug side end surface 1b of the single port side optical fiber cable 1 and the relative position between the end surface 6b of the light guide member 6 and the end surface 9a of the bundle part of the optical fiber cable bundle 11 are determined. Their positional relationships are maintained properly, and they hardly shift during use.
それゆえ、相対向する端面間での光の授受が位置ずれに
より有効になされなかったり、端面どおしが擦れ合って
傷ついたりすることはなく、光損失を十分小さくするこ
とができる。Therefore, the transmission and reception of light between the opposing end faces is not effectively performed due to positional deviation, and the end faces are not damaged due to rubbing against each other, and optical loss can be sufficiently reduced.
また、この実施例では、先に述べたように、導光部材６
の端面６ａにおけるコア径Ｄ：Ｉを単ポート側光ファイ
バケーブル１のプラグ側端面１ｂ）：おけるコア径Ｄ１
よりも大きく設定し、導光部材６の端面６ｂにおけるコ
ア径Ｄ２を光ファイ、バケーブル束１１の結束部端面９
ａにおけるコア集合部外径り。Further, in this embodiment, as described above, the light guide member 6
The core diameter D at the end face 6a of the single port side optical fiber cable 1 is the core diameter D1 at the plug side end face 1b) of the single port side optical fiber cable 1.
The core diameter D2 at the end face 6b of the light guiding member 6 is set larger than the end face 9 of the bundled part of the optical fiber cable bundle 11.
Core gathering part outer diameter in a.
よりも大きく設定していて、導光部材６の端面６ａにお
けるコア部分は端面６ａに対向するプラグ側端面１ｂに
おけるコア部分を全域覆うような大きさを有し、導光部
材６の端面６ｂにおけるコア部分は端面６ｂに対向する
結束部端面９ａにおけるコア部分８ｂ。The core portion on the end surface 6a of the light guide member 6 has a size that covers the entire core portion on the plug side end surface 1b opposite to the end surface 6a, and The core portion is a core portion 8b at the end surface 9a of the binding portion opposite to the end surface 6b.
ａｂ、８’ｂを全域覆うような大きさを有している。各
部品が所定の部品精度内で製作されていれば、単なる組
立作業を行なうだけで単ポート側光ファイバケーブル１
の一端部１ａ、導光部材６、および光ファイバケーブル
東１１′の結束部９の連結状態は第４図のようになり、
多ポート側光ファイバケーブル８，８．８のいずれに導
かれた光も等しく単ボート側光ファイバケーブル１に伝
送され、逆に単ボート側光ファイバケーブル１に導かれ
た光は多ポート側光ファイバケーブル８，８．８のいず
れにも等しく伝送される。It has a size that covers the entire region ab and 8'b. If each part is manufactured within the specified part accuracy, a single port side optical fiber cable 1 can be assembled by simply assembling the parts.
The connected state of the one end 1a, the light guide member 6, and the binding part 9 of the optical fiber cable east 11' is as shown in FIG.
The light guided to any of the multi-port side optical fiber cables 8, 8.8 is equally transmitted to the single-port side optical fiber cable 1, and conversely, the light guided to the single-port side optical fiber cable 1 is transmitted to the multi-port side optical fiber cable 1. It is transmitted equally to both fiber cables 8 and 8.8.
また、この実施例においては、組立完了時において導光
部材６の端面６ａが単ボート側光ファイバケーブル１の
プラグ側端面１ｂに密着し、導光部材６の端面６ｂが光
フアイバケーブル束１１の結束部端面９ａに密着するよ
うにして極力光量ロスの防止を図っているが、これら相
対向する端面がわずかに離間していても、そのことによ
る光量ロスは実用上はとんど問題とはならないと考えら
れるため、これら相対向する端面が所定距離内で離間す
ることを許容して生産コストの低減を図るようにしても
よい。Further, in this embodiment, when the assembly is completed, the end surface 6a of the light guide member 6 is in close contact with the plug side end surface 1b of the single boat side optical fiber cable 1, and the end surface 6b of the light guide member 6 is in close contact with the plug side end surface 1b of the optical fiber cable bundle 11. Although an attempt is made to prevent light loss as much as possible by closely contacting the bundle end surface 9a, even if these opposing end surfaces are slightly separated, the loss of light amount due to this is hardly a problem in practice. Therefore, it is possible to reduce the production cost by allowing these opposing end surfaces to be separated within a predetermined distance.
また、この実施例において、導光部材６は光ファイバで
あったが、その材質はガラスであっても樹脂であっても
よい。樹脂製光ファイバとしては、光透過性の良好なア
クリル樹脂の外周にそれより屈折率の小さい樹脂を塗布
した簡易な光ファイバを使用することもできる。さらに
、導光部材は光ファイバに限定されるわけではなく、内
周面が反射面となっている金属性の円筒管であってもよ
いし、レンズのようなものであってもよい。Further, in this embodiment, the light guide member 6 is an optical fiber, but its material may be glass or resin. As the resin optical fiber, it is also possible to use a simple optical fiber in which the outer periphery of an acrylic resin having good optical transparency is coated with a resin having a smaller refractive index. Furthermore, the light guide member is not limited to an optical fiber, but may be a metallic cylindrical tube whose inner peripheral surface is a reflective surface, or may be a lens-like member.
この発明は、以上説明してきたように、一端部にプラグ
が装着された１本の単ボニト側光ファイバケーブルと、
いずれか一方の端面から受けた光を他方の端面より出射
させる導光部材と、複数本の多ボート側光ファイバケー
ブルが一端部で結束され、且つその結束部にスリーブが
装着されてなる光フアイバケーブル束とが別体に形成さ
れ、導光部材の一端側およびプラグは導光部材の一端面
と単ボート側光ファイバケーブルのプラグ側端面とが相
対向するようにリセプタクルの貫通孔内に挿入されて連
結され、導光部材の他端側およびスリーブは導光部材の
他端面と光フアイバケーブル束の結束部端面とが相対向
するようにホルダの貫通孔内に挿入されて連結され、リ
セプタクルおよびホルダはケースの部品収納部に収納さ
れている構成の光分岐・結合器としたため、組立作業は
一連の流れ作業の中で流れを止めることなく行なうこと
ができ、また、部品どおしの難しい位置合わせ作業も不
要となって、量産が容易になるという効果が得られる。As explained above, this invention includes one single-bonito side optical fiber cable with a plug attached to one end,
A light guide member that emits light received from one end face from the other end face, and an optical fiber comprising a plurality of multi-board side optical fiber cables bound at one end and a sleeve attached to the bundled part. The cable bundle is formed separately, and the one end side of the light guide member and the plug are inserted into the through hole of the receptacle so that the one end face of the light guide member and the end face of the plug side of the single boat side optical fiber cable face each other. The other end side of the light guide member and the sleeve are inserted into the through hole of the holder and connected so that the other end face of the light guide member and the end face of the bundle of the optical fiber cable bundle face each other, and the sleeve is connected to the receptacle. Since the optical splitter/combiner and holder are stored in the parts storage section of the case, the assembly work can be carried out without stopping the flow in a series of assembly operations. Difficult positioning work is no longer necessary, and mass production becomes easier.
さらに、単ボート側光ファイバケーブルのプラグ側端面
とこれに対向する導光部材の端面との相対位置関係およ
び光フアイバケーブル束の結束部端面とこれに対向する
導光部材の端面との相対位置関係はそれぞれ適正に保た
れ、使用中もほとんどずれることがないから、相対向す
る端面間での光の授受が位置ずれにより有効になされな
かったり、端面どおしが擦れ合って傷ついたりすること
はなく、光損失を十分小さくすることができるという効
果が得られる。Furthermore, the relative positional relationship between the plug side end face of the single boat side optical fiber cable and the end face of the light guide member opposing this, and the relative position between the end face of the binding part of the optical fiber cable bundle and the end face of the light guide member opposing this. Since the relationships between each are maintained properly and there is almost no deviation during use, there is no chance that the exchange of light between the opposing end surfaces will be done effectively due to misalignment, or that the end surfaces will rub against each other and be damaged. The effect is that the optical loss can be sufficiently reduced.
第１図〜第４図はこの発明に係る光分岐・結合器の一実
施例を示す図であって、第１図は光分岐・結合器の分解
斜視図、第２図は下ケースに各部品を収納した組立途中
の光分岐・結合器の平面図、第３図は光フアイバケーブ
ル束の結束部端面の状態を示す図、第４図は第２図の要
部を示す一部断面拡大図である。
１・・・単ポート側光ファイバケーブル、１ａ・・・単
ポート側光ファイバケーブルの端部、１ｂ・・・プラグ
側端面、２・・・プラグ、３・・・リセプタクル、３ｃ
・・・リセプタクルの貫通孔、６・・・導光部材、６ａ
、 ６ｂ・・・導光部材の端面、７・・・ホルダ、
７ａ・・・ホルダの貫通孔、８・・・多ポート側光ファ
イバケーブル、９・・・結束部、 ９ａ・・・結束部端
面、ｌＯ・・・スリーブ、１１・・・光フアイバケーブ
ル束、１２ａ・・・部品収納部。
第１図
第２図
第３図1 to 4 are diagrams showing an embodiment of the optical branching/coupling device according to the present invention, in which FIG. 1 is an exploded perspective view of the optical branching/coupling device, and FIG. 2 is an exploded perspective view of the optical branching/coupling device. A plan view of the optical splitter/coupler in the process of being assembled with parts stored therein; Figure 3 is a diagram showing the state of the end face of the bundled part of the optical fiber cable bundle; Figure 4 is a partially enlarged cross-sectional view showing the main parts of Figure 2. It is a diagram. DESCRIPTION OF SYMBOLS 1...Single port side optical fiber cable, 1a...End of single port side optical fiber cable, 1b...Plug side end surface, 2...Plug, 3...Receptacle, 3c
... through hole of receptacle, 6 ... light guide member, 6a
, 6b... end face of light guide member, 7... holder,
7a...Through hole of holder, 8...Multi-port side optical fiber cable, 9...Bundle part, 9a...Bundle part end face, 1O...Sleeve, 11...Optical fiber cable bundle, 12a... parts storage section. Figure 1 Figure 2 Figure 3
Claims (1)
バケーブルと、いずれが一方の端面がら受けた光を他方
の端面より出射させる導光部材と、複数本の多ボート側
光ファイバケーブルが一端部で結束され、且つその結束
部にスリーブが装着されてなる光フアイバケーブル束と
が別体に形成され、前記導光部材の一端側および前記プ
ラグは前記導光部材の一端面と前記単ボート側光ファイ
バケーブルのプラグ側端面とが相対向するようにリセプ
タクルの貫通孔内に挿入されて連結され、前記導光部材
の他端側および前記スリーブは前記導光部材の他端面と
前記光フアイバケーブル束の結束部端面とが相対向する
ようにホルダの貫通孔内に挿入されて連結され、前記リ
セプタクルおよび前記ホルダはケースの部品収納部に収
納されていることを特徴とする光分岐・結合器。A single-port side optical fiber cable with a plug attached to one end, a light guide member that emits light received from one end face from the other end face, and multiple multi-port side optical fiber cables. An optical fiber cable bundle which is bound at one end and has a sleeve attached to the bundled part is formed separately, and one end side of the light guide member and the plug are connected to one end surface of the light guide member and the bundle. The boat side optical fiber cable is inserted into the through hole of the receptacle and connected so that the plug side end face faces each other, and the other end side of the light guide member and the sleeve are connected to the other end face of the light guide member and the light guide member. The optical branching device is characterized in that the fiber cable bundle is inserted into a through hole of the holder and connected to each other so that the end faces of the bundled portion thereof face each other, and the receptacle and the holder are housed in a parts storage portion of a case. combiner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13031783A JPS6022106A (en) | 1983-07-19 | 1983-07-19 | Optical demultiplexer and multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13031783A JPS6022106A (en) | 1983-07-19 | 1983-07-19 | Optical demultiplexer and multiplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6022106A true JPS6022106A (en) | 1985-02-04 |
| JPS6321163B2 JPS6321163B2 (en) | 1988-05-06 |
Family
ID=15031433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13031783A Granted JPS6022106A (en) | 1983-07-19 | 1983-07-19 | Optical demultiplexer and multiplexer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022106A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5397446A (en) * | 1977-02-07 | 1978-08-25 | Hitachi Ltd | Optical fiber branching inserter |
-
1983
- 1983-07-19 JP JP13031783A patent/JPS6022106A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5397446A (en) * | 1977-02-07 | 1978-08-25 | Hitachi Ltd | Optical fiber branching inserter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6321163B2 (en) | 1988-05-06 |
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