JPS6320321B2 - - Google Patents
Info
- Publication number
- JPS6320321B2 JPS6320321B2 JP58037318A JP3731883A JPS6320321B2 JP S6320321 B2 JPS6320321 B2 JP S6320321B2 JP 58037318 A JP58037318 A JP 58037318A JP 3731883 A JP3731883 A JP 3731883A JP S6320321 B2 JPS6320321 B2 JP S6320321B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- light guide
- fiber cable
- port side
- light
- 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.)
- Expired
Links
- 239000013307 optical fiber Substances 0.000 claims description 47
- 230000003287 optical effect Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005253 cladding Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4471—Terminating devices ; Cable clamps
- G02B6/4472—Manifolds
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は量産性に優れた光分岐・結合器に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an optical branching/coupling device that is highly suitable for mass production.
従来技術
従来の光分岐・結合器としては例えば、複数本
の多ポート側光フアイバケーブルを一端部で束
ね、その結束部の端面を１本の単ポート側光フア
イバケーブルの端面に接着剤等で接着することに
より、複数本の多ポート側光フアイバケーブルと
１本の単ポート側光フアイバケーブルとを連結す
るようにしたものがあつた。Prior Art Conventional optical branching/coupling devices include, for example, bundling multiple multi-port optical fiber cables at one end, and attaching the end face of the bundle to the end face of one single-port optical fiber cable using adhesive or the like. There is one in which a plurality of multi-port side optical fiber cables and one single-port side optical fiber cable are connected by bonding.
発明が解決しようとする問題点
ところが、このような従来の光分岐・結合器に
あつては、接着剤が硬化するまでの間、多ポート
側光フアイバケーブル及び単ポート側光フアイバ
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つた。Problems to be Solved by the Invention However, in such conventional optical branching/coupling devices, until the adhesive hardens, the multi-port side optical fiber cable and the single-port side optical fiber cable are not connected at any end. Since it is necessary to leave the product fixed on a jig with the butts in close contact with each other, it requires a large work space and has a poor work flow, making it unsuitable for mass production.
また、多ポート側光フアイバケーブルと単ポー
ト側光フアイバケーブル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つていた。 Also, it is difficult to align the optical fiber cable on the multi-port side and the optical fiber cable on the single-port side.
The fact that this work requires careful attention has also been a factor hindering improvements in production efficiency.
目 的
この発明はかかる問題点に鑑みてなされたもの
であり、量産性に優れた光分岐・結合器を提供す
ることを目的としている。Purpose This invention was made in view of the above problems, and an object thereof is to provide an optical branching/coupling device that is excellent in mass production.
問題点を解決するための手段
この目的を達成するため、この発明は、１本の
単ポート側光フアイバケーブルの連結側端部に装
着されたプラグを保持するリセプタクルと、複数
本の多ポート側光フアイバケーブルの一端部が束
ねられた結束部に装着されるスリーブと、端部に
鍔部が形成された大略円柱形状を呈し、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
せる導光部と、大径孔および小径孔が連通してな
る貫通孔が形成され、該貫通孔に一方側の開口部
から前記導光部が挿入され、又、他方側の開口か
ら前記スリーブが挿通され、該貫通孔の大径孔に
前記導光部の鍔部が嵌り込むようにしたホルダ
と、前記単ポート側光フアイバケーブルの連結側
端面が前記導光部の一端部に対向し、前記多ポー
ト側光フアイバケーブルの結束部端面が前記導光
部の他端面に対向するように、前記リセプタク
ル、前記ホルダ、および前記スリーブを集合させ
て収納部に嵌合させて保持するケースとからなる
光分岐・結合器としている。Means for Solving the Problems In order to achieve this object, the present invention provides a receptacle for holding a plug attached to the connecting end of one single-port side optical fiber cable, and a plurality of multi-port side optical fiber cables. A sleeve that is attached to a bundle where one end of the optical fiber cables is bundled, and has a roughly cylindrical shape with a flange formed at the end, and allows light received from one end face to be emitted from the other end face. A through hole is formed in which the light guide part communicates with a large diameter hole and a small diameter hole, and the light guide part is inserted into the through hole through the opening on one side, and the sleeve is inserted through the opening on the other side. a holder that is inserted through the through hole so that the flange of the light guide part fits into the large diameter hole of the through hole, and a connection side end surface of the single port optical fiber cable faces one end of the light guide part; a case in which the receptacle, the holder, and the sleeve are assembled and held in a housing portion so that the end surface of the bundled portion of the multi-port side optical fiber cable faces the other end surface of the light guide portion; It is an optical branching/combining device.
実施例 以下、この発明を図面に基づいて説明する。Example 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
側光フアイバケーブルであり、その連結側端部１
ａにはプラグ２が装着され、連結側端面１ｂはプ
ラグ２の先端に現われている。３はリセプタクル
であり、プラグ２が挿着されるプラグ保持部３ａ
を有している。プラグ保持部３ａ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を有する構造になつており、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つて
いる。４は導光部ユニツトであり、貫通孔を有
し、一端に鍔部５ａが形成された導光部ケース５
と、導光部ケース５の貫通孔内に挿着された導光
部６とからなる。導光部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
あつて、ここでは光フアイバが用いられており、
導光部ユニツト４の鍔部５ａ側先端には導光部６
の端面６ａが現われ、他端には、導光部６の端面
６ｂが現われている。なお、導光部において、光
を透過させる領域を光透過域ということにする。
導光部が光フアイバの場合、光透過域はコアであ
る。７はホルダであり、貫通孔７ａを有してい
る。貫通孔７ａは小径孔７ｂと小径孔７ｂより径
の大きい大径孔７ｃが連通してなるものである。
８は複数本の多ポート側光フアイバケーブルであ
り、９はその一端部が結束された結束部であつ
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９の端面９ａは
スリーブ１０の先端に現われている。結束部端面
９ａは第３図に示すようになつており、多ポート
側光フアイバケーブル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
つていて、互いに平らな側面で密着されている。
８ｂはコア、８ｃはクラツドであつて、D0はコ
ア８ｂ，８ｂ，８ｂの各弧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。 1 to 4 are diagrams showing an embodiment of the optical branching/coupling device according to the present invention. 1 in the figure is a single port side optical fiber cable, and its connection side end 1
A plug 2 is attached to the plug 2, and the connecting side end surface 1b is exposed at the tip of the plug 2. 3 is a receptacle, and a plug holding part 3a into which the plug 2 is inserted.
have. Inside the plug holding part 3a,
It has a structure having an annular locking spring 3b that can be expanded in the radial direction, and when the plug 2 is inserted, the locking spring 3b is formed at the base end of the tip projection 2a of the plug 2. The plug 2 is fitted into the annular groove 2b to prevent the plug 2 from falling off. Reference numeral 4 designates a light guide unit, which includes a light guide case 5 having a through hole and a flange 5a formed at one end.
and a light guide part 6 inserted into a through hole of the light guide part case 5. The light guide section 6 receives light from one end surface and emits it from the other end surface, and an optical fiber is used here.
A light guide unit 6 is provided at the tip of the light guide unit 4 on the side of the flange 5a.
An end surface 6a of the light guide section 6 appears at the other end, and an end surface 6b of the light guide section 6 appears at the other end. Note that in the light guiding section, the region through which light is transmitted will be referred to as a light transmission region.
When the light guide is an optical fiber, the light transmission region is the core. A holder 7 has a through hole 7a. The through hole 7a is formed by a small diameter hole 7b and a large diameter hole 7c having a larger diameter than the small diameter hole 7b communicating with each other.
Reference numeral 8 designates a plurality of multi-port side optical fiber cables, and reference numeral 9 represents a binding part in which one end of the cables is bundled.A sleeve 10 having a collar part 10a is attached to the binding part 9. An end surface 9a of 9 appears at the tip of the sleeve 10. The bundle end face 9a is as shown in FIG. 3, and each end face 8a of the multi-port side optical fiber cable 8,
8a and 8a have fan-shaped end faces with equal central angles, and are closely attached to each other with their flat sides.
8b is a core, 8c is a cladding, and D0 indicates the diameter of a circle formed by connecting the arcs 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６の端面６ａに
おけるコア径は単ポート側光フアイバケーブル１
の連結側端面１ｂにおけるコア径よりも大きく設
定され、導光部６の端面６ｂにおけるコア径は多
ポート側光フアイバケーブル８の結束部端面９ａ
におけるコア集合部外径D0よりも大きく設定さ
れている。 In this embodiment, the core diameter at the end surface 6a of the light guide section 6 is the same as that of the single port side optical fiber cable 1.
The core diameter at the end surface 6b of the light guide section 6 is set larger than the core diameter at the end surface 1b on the connection side of the multi-port side optical fiber cable 8.
The outer diameter D of the core gathering portion is set to be larger than the outer diameter D 0 of the core gathering portion.
このことは、導光部６の端面６ａにおけるコア
部分、すなわち光透過域は、端面６ａに対向する
単ポート側光フアイバケーブル１の連結側端面１
ｂ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６の端面６ｂにおけるコア部分、すな
わち光透過域は、端面６ｂに対向する多ポート側
光フアイバケーブル８の結束部端面９ａにおける
コア部分８ｂ，８ｂ，８ｂを全域覆うような大き
さを有していることを意味する。 This means that the core portion of the end surface 6a of the light guide section 6, that is, the light transmission region, is located at the connecting side end surface of the single port side optical fiber cable 1 facing the end surface 6a.
The core portion at the end surface 6b of the light guide section 6, that is, the light transmission area is large enough to cover the entire core section at the end surface 6b of the light guide section 6, and the core section at the end surface 6b of the light guide section 6 is large enough to cover the entire core section at the end surface 9a of the multi-port side optical fiber cable 8 facing the end surface 6b. This means that it has a size that covers the entire core portions 8b, 8b, 8b.
１１は下ケースであり、部品収納部１１ａ、半
円状切欠部１１ｂ、段付半円状切欠部１１ｃ、お
よびネジＳが挿通される孔１１ｄが設けられてい
る。１２は上ケースであり、半円状切欠部１２ｂ
が設けられているほか、部品収納部１１ａ、段付
半円状切欠部１１ｃ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。また、孔１１ｄ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１２およ
び下ケース１１は、１つのケースを構成する。 Reference numeral 11 denotes a lower case, which is provided with a component storage section 11a, a semicircular notch 11b, a stepped semicircular notch 11c, and a hole 11d into which a screw S is inserted. 12 is an upper case, and a semicircular notch 12b
In addition, a component storage section and a stepped semicircular notch (not shown) similar to these are provided at positions corresponding to the component storage section 11a and the stepped semicircular notch 11c. Furthermore, a threaded portion (not shown) that is screwed into the screw S is formed at a position corresponding to the hole 11d. These pair of upper case 12 and lower case 11 constitute one case.
以上に述べたネジ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、ホルダ７の貫通孔７ａ内に導光部ユニツ
ト４を大径孔７ｃの側から、スリーブ１０を小径
孔７ｂの側からそれぞれ挿着する。このとき、導
光部ユニツト４の鍔部５ａは大径孔７ｃ内に嵌入
され、導光部６の端面６ｂと結束部９の端面９ａ
とが密着し、スリーブ１０の基端部及び鍔部１０
ａはホルダ７の外側に出ている。 First, the light guide unit 4 is inserted into the through hole 7a of the holder 7 from the large diameter hole 7c side, and the sleeve 10 is inserted from the small diameter hole 7b side. At this time, the flange 5a of the light guide unit 4 is fitted into the large diameter hole 7c, and the end face 6b of the light guide unit 6 and the end face 9a of the binding part 9 are inserted into the large diameter hole 7c.
are in close contact with each other, and the proximal end portion of the sleeve 10 and the collar portion 10
a protrudes from the outside of the holder 7.
次に、このホルダ７とリセプタクル３とを合体
させて下ケース１１の部品収納部１１ａ内に位置
決めして納める。このとき、スリーブ１０の基端
部及び鍔部１０ａは段付半円状切欠部１１ｃ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１１ｂ内に嵌め込むようにする（第
２図参照）。 Next, the holder 7 and the receptacle 3 are combined and positioned and stored in the component storage section 11a of the lower case 11. At this time, the proximal end of the sleeve 10 and the flange 10a are fitted into the stepped semicircular notch 11c, and the proximal end of the plug holding part 3a is fitted into the semicircular notch 11b. (See Figure 2).
それから、上ケース１２を被せて、ネジＳを下
ケース１１の下方から孔１１ｄに挿通し、上ケー
ス１２の図示しないネジ部にねじ込んで上ケース
１２を下ケース１１に冠着した後、外方に突出し
たプラグ保持部３ａに単ポート側光フアイバケー
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。このとき、連結側端面１ｂは
導光部６の端面６ａに密着した状態となる。 Then, cover the upper case 12, insert the screw S into the hole 11d from below the lower case 11, screw it into the threaded part (not shown) of the upper case 12, and attach the upper case 12 to the lower case 11. When the plug 2 of the single-port side optical fiber cable 1 is inserted into the plug holding portion 3a protruding from the side, the assembly of the optical branch/coupler is completed. At this time, the connecting side end surface 1b is in close contact with the end surface 6a of the light guide section 6.
従つて、従来のように接着剤を用いる必要がな
いため、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、また、各部品を
下ケース１１に納めることで位置合わせがなされ
るようになつているため、難しい位置合わせ作業
が不要となる。また、導光部６とスリーブ１０と
の位置決めは、これらをホルダ７の貫通孔７ａに
挿入するだけで、極めて簡単に行うことができ
る。 Therefore, since there is no need to use adhesives as in the past, the above assembly work can be done in a series of assembly operations, and positioning can be done by placing each part in the lower case 11. This eliminates the need for difficult positioning work. Further, positioning of the light guide section 6 and the sleeve 10 can be performed extremely simply by simply inserting them into the through hole 7a of the holder 7.
このようにして組み立てられた光分岐・結合器
は、単ポート側光フアイバケーブル１に導かれて
きた光を導光部６を介して多ポート側光フアイバ
ケーブル８，８，８のそれぞれに分岐させて伝送
し、多ポート側光フアイバケーブル８，８，８に
それぞれ導かれてきた光を導光部６を介して単ポ
ート側光フアイバケーブル１に結合させて伝送す
る。 The optical branch/coupler assembled in this manner branches the light guided to the single-port side optical fiber cable 1 to the multi-port side optical fiber cables 8, 8, 8 via the light guide section 6. The light guided to the multi-port optical fiber cables 8, 8, 8 is coupled to the single-port optical fiber cable 1 via the light guiding section 6 and transmitted.
また、先に述べたように、導光部６の端面６ａ
におけるコア径D0を単ポート側光フアイバケー
ブル１の連結側端面１ｂにおけるコア径D0より
も大きく設定し、導光部６の端面６ｂにおけるコ
ア径D0を多ポート側光フアイバケーブル８の結
束部端面９ａにおけるコア集合部外径D0よりも
大きく設定していて、導光部６の端面６ａにおけ
るコア部分、すなわち光透過域は端面６ａに対向
する連結側端面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６の端面６ｂにおけ
るコア部分、すなわち光透過域は端面６ｂに対向
する結束部端面９ａにおけるコア部分８ｂ，８
ｂ，８ｂを全域覆うような大きさを有している。
従つて、導光部６と単、多ポート側フアイバケー
ブル１，８，８，８との結合部において、多少の
ズレが許容され、組立作業性が向上する。また、
各部品が所定の部品精度内で製作されていれば、
単に下ケース１１にその他各部品を収納するだけ
で連結側端部１ａ、導光部６、および結束部９の
連結状態は第４図のようになり、多ポート側光フ
アイバケーブル８，８，８のいずれに導かれた光
も等しく単ポート側光フアイバケーブル１に伝送
され、逆に単ポート側光フアイバケーブル１に導
かれた光は多ポート側光フアイバケーブル８，
８，８のいずれにも等しく伝送される。 Moreover, as mentioned earlier, the end surface 6a of the light guide section 6
The core diameter D 0 at the connecting side end surface 1b of the single-port side optical fiber cable 1 is set larger than the core diameter D 0 at the end surface 6b of the light guide section 6. The outer diameter D 0 of the core gathering part at the end face 9a of the bundle part is set larger than the core part on the end face 6a of the light guiding part 6, that is, the light transmission area covers the entire core part on the connecting side end face 1b facing the end face 6a. The core portion on the end surface 6b of the light guide portion 6, that is, the light transmission region is large enough to cover the core portions 8b, 8 on the binding portion end surface 9a facing the end surface 6b.
It has a size that covers the entire areas b and 8b.
Therefore, some misalignment is allowed at the joints between the light guide section 6 and the single-port and multi-port fiber cables 1, 8, 8, 8, and the assembly work efficiency is improved. Also,
If each part is manufactured within the specified part accuracy,
By simply storing the other parts in the lower case 11, the connecting state of the connecting side end 1a, the light guide section 6, and the binding section 9 becomes as shown in FIG. 4, and 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 8,
8 and 8 are equally transmitted.
また、この実施例においては、組立完了時にお
いて導光部６の端面６ａが単ポート側光フアイバ
ケーブル１の連結側端面１ｂに密着し、導光部６
の端面６ｂが多ポート側光フアイバケーブル８の
結速部端面９ａに密着するようにして極力光量ロ
スの防止を図つているが、光量ロスがあまり問題
にならないような使用目的の光分岐・結合器にあ
つては、端面どおしは単に対向していればよく、
必ずしも密着していなくてもよいので、より安価
に生産できる。 Further, in this embodiment, when the assembly is completed, the end surface 6a of the light guide section 6 is in close contact with the connection side end surface 1b of the single port side optical fiber cable 1, and the light guide section 6
The end face 6b of the fiber optic cable 8 is in close contact with the end face 9a of the connection part of the multi-port side optical fiber cable 8 to prevent light loss as much as possible. In the case of vessels, it is sufficient that the end faces simply face each other;
Since they do not necessarily need to be in close contact, production can be made at a lower cost.
また、この実施例において、導光部６は光フア
イバであつたが、そのほか、光を透過させるコア
の外周にコア側からきた光を反射させるクラツド
を形成してなるものとして、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物質
を塗布したもの、あるいは内周面が反射面になつ
ている金属製の円筒管（この場合、クラツドは円
筒管、コアは中空部の空気層である。）等を用い
てもよい。さらに、導光部はレンズのようなもの
でもよい。 In this embodiment, the light guide section 6 was an optical fiber, but in addition, it may be made of a light transmitting core, with a cladding formed around the outer periphery of a core that transmits light to reflect light coming from the core side. A good acrylic resin whose outer periphery is coated with a substance with a lower refractive index, or a metal cylindrical tube whose inner periphery is a reflective surface (in this case, the cladding is the cylindrical tube, and the core is the air in the hollow). layer), etc. may be used. Furthermore, the light guiding section may be something like a lens.
発明の効果
この発明は、以上説明してきたように、１本の
単ポート側光フアイバケーブルの連結側端部に装
着されたプラグを保持するリセプタクルと、複数
本の多ポート側光フアイバケーブルの一端部が束
ねられた結束部に装着されるスリーブと、端部に
鍔部が形成された大略円柱形状を呈し、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
せる導光部と、大径孔および小径孔が連通してな
る貫通孔が形成され、該貫通孔に一方側の開口部
から前記導光部が挿入され、又、他方側の開口か
ら前記スリーブが挿通され、該貫通孔の大径孔に
前記導光部の鍔部が嵌り込むようにしたホルダ
と、前記単ポート側光フアイバケーブルの連結側
端面が前記導光部の一端部に対向し、前記多ポー
ト側光フアイバケーブルの結束部端面が前記導光
部の他端面に対向するように、前記リセプタク
ル、前記ホルダ、および前記スリーブを集合させ
て収納部に嵌合させて保持するケースとからなる
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
ができると共に、部品どおしの難しい位置合わせ
作業も不要となつて生産の増大が図られ、しか
も、導光部とスリーブとをホルダーの貫通孔に挿
入して同軸上に簡単に保持することができる、と
いう効果が得られる。Effects of the Invention As described above, the present invention provides a receptacle for holding a plug attached to the connecting end of one single-port side optical fiber cable, and one end of a plurality of multi-port side optical fiber cables. a sleeve that is attached to a binding part in which parts are bundled; a light guide part that has a roughly cylindrical shape with a flange formed at an end and that receives light from one end face and emits the light from the other end face; A through hole is formed in which a large diameter hole and a small diameter hole communicate with each other, and the light guide section is inserted into the through hole from an opening on one side, and the sleeve is inserted through an opening on the other side. A holder in which the flange of the light guide part fits into the large diameter hole of the hole, and a connection side end surface of the single port side optical fiber cable faces one end of the light guide part, and the multi port side light Optical branching/coupling comprising a case for assembling the receptacle, the holder, and the sleeve and fitting them into a storage part so that the end face of the bundle part of the fiber cable faces the other end face of the light guide part. As a result, assembly work can be carried out without stopping the flow in a series of assembly operations, and difficult alignment work between parts is no longer necessary, increasing production. This provides the effect that the optical part and the sleeve can be easily held coaxially by inserting them into the through hole of the holder.
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つて、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図は多ポート側光フアイバケーブルの結
束部端面の状態を示す図、第４図は第２図の要部
の一部断面拡大図である。
１……単ポート側光フアイバケーブル、１ａ…
…連結側端部、１ｂ……連結側端面、２……プラ
グ、３……リセプタクル、３ａ……プラグ保持
部、６……導光部、６ａ，６ｂ……導光部の端
面、７……ホルダ、７ａ……貫通孔、８……多ポ
ート側光フアイバケーブル、９……結束部、９ａ
……結束部端面、１０……スリーブ、１１……下
ケース、ケース、１２……上ケース、ケース。
1 to 4 are views showing one 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. A plan view of the optical splitter/coupler in the middle of assembly with parts stored therein, Figure 3 is a diagram showing the state of the end face of the bundled part of the multi-port side optical fiber cable, and Figure 4 is a partial cross section of the main part of Figure 2. It is an enlarged view. 1...Single port side optical fiber cable, 1a...
... connection side end, 1b ... connection side end surface, 2 ... plug, 3 ... receptacle, 3a ... plug holding section, 6 ... light guide section, 6a, 6b ... end surface of light guide section, 7 ... ...Holder, 7a...Through hole, 8...Multi-port side optical fiber cable, 9...Bundling part, 9a
... End face of the binding part, 10 ... Sleeve, 11 ... Lower case, case, 12 ... Upper case, case.
Claims (1)
側端部に装着されたプラグを保持するリセプタク
ルと、 複数本の多ポート側光フアイバケーブルの一端
部が束ねられた結束部に装着されるスリーブと、 端部に鍔部が形成された大略円柱形状を呈し、
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と、 大径孔および小径孔が連通してなる貫通孔が形
成され、該貫通孔に一方側の開口部から前記導光
部が挿入され、又、他方側の開口から前記スリー
ブが挿通され、該貫通孔の大径孔に前記導光部の
鍔部が嵌り込むようにしたホルダと、 前記単ポート側光フアイバケーブルの連結側端
面が前記導光部の一端部に対向し、前記多ポート
側光フアイバケーブルの結束部端面が前記導光部
の他端面に対向するように、前記リセプタクル、
前記ホルダ、および前記スリーブを集合させて収
納部に嵌合させて保持するケースとからなること
を特徴とする光分岐・結合器。 ２ 導光部は、一端面が単ポート側光フアイバケ
ーブルの連結側端面に密着され、他端面が多ポー
ト側光フアイバケーブルの結束部端面に密着され
るようにしたことを特徴とする特許請求の範囲第
１項に記載の光分岐・結合器。 ３ 導光部は、光を透過させるコアの外周に該コ
ア側からきた光を反射させるクラツドを形成して
なることを特徴とする特許請求の範囲第１項およ
び第２項のいずれか１項に記載の光分岐・結合
器。[Scope of Claims] 1. A receptacle that holds a plug attached to the connecting end of one single-port side optical fiber cable, and a binding part in which one end of a plurality of multi-port side optical fiber cables is bundled. It has a roughly cylindrical shape with a sleeve attached to the sleeve and a flange at the end.
A light guide part that emits light received from one end face from the other end face, and a through hole in which the large diameter hole and the small diameter hole communicate are formed, and the through hole is connected to the light guide part from the opening on one side. a holder into which a light section is inserted, the sleeve is inserted through the opening on the other side, and the flange of the light guide section is fitted into the large diameter hole of the through hole; and the single port side optical fiber cable. The receptacle is configured such that a connecting side end face of the receptacle faces one end of the light guide, and an end face of the binding part of the multi-port side optical fiber cable faces the other end of the light guide;
An optical branching/coupling device comprising the holder and a case that collects the sleeves and fits them into a storage portion to hold them. 2. A patent claim characterized in that the light guide part has one end surface closely attached to the connection side end surface of the single-port side optical fiber cable, and the other end surface closely attached to the bundle section end surface of the multi-port side optical fiber cable. The optical branching/coupling device according to item 1. 3. The light guiding portion is formed by forming a clad around the outer periphery of a core that transmits light, which reflects light coming from the core side. Optical splitter/combiner described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3731883A JPS59164520A (en) | 1983-03-09 | 1983-03-09 | Optical brancher and coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3731883A JPS59164520A (en) | 1983-03-09 | 1983-03-09 | Optical brancher and coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59164520A JPS59164520A (en) | 1984-09-17 |
| JPS6320321B2 true JPS6320321B2 (en) | 1988-04-27 |
Family
ID=12494321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3731883A Granted JPS59164520A (en) | 1983-03-09 | 1983-03-09 | Optical brancher and coupler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59164520A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60200210A (en) * | 1984-03-23 | 1985-10-09 | Matsushita Electric Works Ltd | Photocoupler |
| JPH0336962Y2 (en) * | 1985-10-31 | 1991-08-06 | ||
| JPS6276302U (en) * | 1985-10-31 | 1987-05-15 | ||
| GB9320262D0 (en) * | 1993-10-01 | 1993-11-17 | Bicc Plc | Breakout |
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
- 1983-03-09 JP JP3731883A patent/JPS59164520A/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 |
|---|---|
| JPS59164520A (en) | 1984-09-17 |
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