JPH0527841B2 - - Google Patents
Info
- Publication number
- JPH0527841B2 JPH0527841B2 JP58219947A JP21994783A JPH0527841B2 JP H0527841 B2 JPH0527841 B2 JP H0527841B2 JP 58219947 A JP58219947 A JP 58219947A JP 21994783 A JP21994783 A JP 21994783A JP H0527841 B2 JPH0527841 B2 JP H0527841B2
- Authority
- JP
- Japan
- Prior art keywords
- adapter
- polarization
- constant polarization
- fixed
- concave
- 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 - Lifetime
Links
- 230000010287 polarization Effects 0.000 claims description 29
- 239000000835 fiber Substances 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000037431 insertion Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 239000013307 optical fiber Substances 0.000 description 5
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects 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
- G02B6/36—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
- G02B6/3812—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres having polarisation-maintaining light guides
-
- 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
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- 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
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3874—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls using tubes, sleeves to align ferrules
-
- 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
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3894—Screw-lock type
Description
【発明の詳細な説明】
(a) 発明の技術分野
本発明は、光コネクタの改善に係り、とくに光
フアイバの偏波面の調整を容易にした定偏波フア
イバ用光コネクタに関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to improvements in optical connectors, and in particular to an optical connector for constant polarization fiber that facilitates adjustment of the plane of polarization of the optical fiber.
(b) 従来技術の問題点
１対の定偏波フアイバをコネクタ接続する場
合、該光フアイバの偏波面を一致させなければな
らないため、光コネクタの構造が複雑かつ高精度
が要求される。第１図は、従来の光コネクタを説
明するための側断面図で、１はアダプタ、２はス
リーブ、３および３′はプラグ、４および４′は定
偏波フアイバ、１１はスリーブ挿入孔、１２は雄
ねじである。(b) Problems with the Prior Art When connecting a pair of constant polarization fibers, the planes of polarization of the optical fibers must be matched, so the structure of the optical connector is complex and requires high precision. FIG. 1 is a side sectional view for explaining a conventional optical connector, in which 1 is an adapter, 2 is a sleeve, 3 and 3' are plugs, 4 and 4' are constant polarization fibers, 11 is a sleeve insertion hole, 12 is a male screw.
金属例えば真鍮等からなるアダプタ１の両端部
に雄ねじ１２を形成するとともに、スリーブ挿入
孔１１を穿孔し、該スリーブ挿入孔１１にスリー
ブ２を嵌挿する。そして定偏波フアイバ４及び
４′の端部の被覆を所定寸法剥離除去して、プラ
グ３および３′に固着し、該プラグ３および３′を
前記アダプタ１の両端部より螺入して接続するよ
うになつている。ところがこのような構成のコネ
クタの場合は光フアイバの偏波面の角度ずれの調
整が困難で、しかも接続損失が大きいという問題
点があつた。 Male screws 12 are formed at both ends of an adapter 1 made of metal such as brass, and a sleeve insertion hole 11 is bored, into which the sleeve 2 is inserted. Then, a predetermined amount of the coating on the ends of the constant polarization fibers 4 and 4' is removed and fixed to the plugs 3 and 3', and the plugs 3 and 3' are screwed into the adapter 1 from both ends to connect them. I'm starting to do that. However, in the case of a connector having such a configuration, it is difficult to adjust the angular deviation of the polarization plane of the optical fiber, and there are problems in that the connection loss is large.
(C)発明の目的
本発明は、上記従来の問題点に鑑み、コネクタ
を結合した状態で光フアイバの偏波面を調整自在
な構成とした定偏波フアイバ用光コネクタを提供
することを目的とするものである。(C) Purpose of the Invention In view of the above-mentioned conventional problems, an object of the present invention is to provide an optical connector for constant polarization fiber, which has a configuration in which the plane of polarization of the optical fiber can be adjusted freely when the connectors are connected. It is something to do.
(d) 発明の構成
前述の目的を達成するために本発明は、２個の
プラグと該プラグが両端から挿入されるアダプタ
とで構成される定偏波フアイバ用光コネクタにお
いて、前記コネクタを結合した状態で前記光フア
イバの偏波面を調整自在としたことによつて達成
される。(d) Structure of the Invention In order to achieve the above-mentioned object, the present invention provides an optical connector for a constant polarization fiber consisting of two plugs and an adapter into which the plugs are inserted from both ends, in which the connectors are coupled together. This is achieved by making the plane of polarization of the optical fiber freely adjustable in this state.
(e) 発明の実施例
以下図面を参照しながら本発明に係る定偏波フ
アイバ用光コネクタの実施例について詳細に説明
する。(e) Embodiments of the Invention Examples of the optical connector for polarization fiber according to the present invention will be described in detail below with reference to the drawings.
第２図及び第３図は、本発明に係る定偏波フア
イバ用光コネクタの一実施例を説明するための側
断面図および外観斜視図で、前図と同等の部分に
ついては同一符号を付しており、６は固定側アダ
プタ、７は回転側アダプタ、８は押え板、９は締
付けねじ、６１はねじ孔、６２は凹部、７１は突
出部、８１はばか孔である。 2 and 3 are a side sectional view and an external perspective view for explaining an embodiment of the optical connector for constant polarization fiber according to the present invention, and parts equivalent to those in the previous figure are given the same reference numerals. 6 is a stationary side adapter, 7 is a rotating side adapter, 8 is a holding plate, 9 is a tightening screw, 61 is a screw hole, 62 is a recessed portion, 71 is a protruding portion, and 81 is a blank hole.
金属例えば真鍮等からなる固定側アダプタ６の
フランジ部に複数のねじ孔６１と凹部６２、雄ね
じ１２およびスリーブ挿入孔１１を形成する。他
方回転側アダプタ７には凹、凸部、即ち前記凹部
６２に対応する突出部７１とスリーブ挿入孔１１
および雄ねじ１２を形成して、該回転側アダプタ
７の突出部７１を前記固定側アダプタ６の凹部６
２に挿入して、押え板８を介して複数の締付けね
じ９で螺着したるのち、一体化されたスリーブ挿
入孔１１に金属例えば真鍮等からなるスリーブ２
を嵌挿する。そして定偏波フアイバ４及び４′の
端部の被覆を所定寸法剥離除去して、プラグ３お
よび３′に固着し、該プラグ３および３′を前記回
転側アダプタ７および固定側アダプタ６に螺入し
て接続するようにしたものである。そして前記定
偏波フアイバ４及び４′の偏波面の調整を行なう
場合は、まづ締付けねじ９を緩め前記回転側アダ
プタ７を第３図の矢印で示す如く回転しながら偏
波面の調整を行ない、最良の状態の時に前記締付
けねじ９を締付け固定すればよい。このように構
成することにより、偏波面を調節するときの軸方
向の力は、当接したアダプタの分割面、即ち凹、
凸部（突起部）の当接面が受け止め、直接、定偏
波フアイバの結合面には及ぶことはなく、しかも
突起部をリング状の押え板で凹部側に押さえ込
み、軸方向のねじ締めによりロツクされるため、
ロツク時に回転ずれすることはない。 A plurality of screw holes 61, a recess 62, a male screw 12, and a sleeve insertion hole 11 are formed in the flange portion of the fixed side adapter 6 made of metal such as brass. On the other hand, the rotation side adapter 7 has a concave and a convex portion, that is, a protrusion 71 corresponding to the concave portion 62 and a sleeve insertion hole 11.
and a male thread 12 are formed so that the protrusion 71 of the rotating adapter 7 is connected to the recess 6 of the stationary adapter 6.
After inserting the sleeve 2 into the sleeve 2 and screwing it in with a plurality of tightening screws 9 through the presser plate 8, the sleeve 2 made of metal such as brass is inserted into the integrated sleeve insertion hole 11.
Insert. Then, a predetermined amount of the coating on the ends of the constant polarization fibers 4 and 4' is peeled off and fixed to the plugs 3 and 3', and the plugs 3 and 3' are screwed into the rotating side adapter 7 and the fixed side adapter 6. It was designed so that it could be connected by inputting it. When adjusting the plane of polarization of the constant polarization fibers 4 and 4', first loosen the tightening screw 9 and adjust the plane of polarization while rotating the rotating adapter 7 as shown by the arrow in FIG. , it is sufficient to tighten and fix the tightening screw 9 in the best condition. With this configuration, the axial force when adjusting the plane of polarization is applied to the splitting surface of the abutting adapter, that is, the concave,
The abutment surface of the convex part (protrusion) receives it, does not directly reach the coupling surface of the polarization fiber, and moreover, the protrusion is held against the concave part by a ring-shaped holding plate, and the screw is tightened in the axial direction. Because it is locked,
There is no rotational deviation when locked.
(f) 発明の効果
以上の説明から明らかなように本発明に係る定
偏波フアイバ用アダプタを２分割し、その分割面
に形成した凹、凸部を回動自在に当接嵌合し、相
互の回転角度を調節し偏波面を一致させた後に押
え板で軸方向にロツクするため、偏波面の角度ず
れの調整が容易に行なえるので接続効率が向上
し、伝送特性の向上に寄与するところが大であ
る。(f) Effect of the invention As is clear from the above explanation, the adapter for constant polarization fiber according to the present invention is divided into two parts, and the concave and convex parts formed on the divided surfaces are rotatably abutted and fitted, After adjusting the mutual rotation angle and matching the polarization planes, they are locked in the axial direction with a holding plate, making it easy to adjust the angle deviation of the polarization planes, improving connection efficiency and contributing to improved transmission characteristics. However, it is large.
第１図は、従来の定偏波フアイバ用光コネクタ
を説明するための側断面図、第２図及び第３図
は、本発明に係る定偏波フアイバ用光コネクタの
一実施例を説明するための側断面図および外観斜
視図である。
図において、１はアダプタ、２はスリーブ、３
および３′はプラグ、４および４′は定偏波フアイ
バ、６は固定側アダプタ、７は回転側アダプタ、
８は押え板、９は締付けねじ、１１はスリーブ挿
入孔、１２は雄ねじ、６１はねじ孔、６２は凹
部、７１は突出部、８１はばか孔をそれぞれ示
す。
FIG. 1 is a side sectional view for explaining a conventional polarization fiber optical connector, and FIGS. 2 and 3 illustrate an embodiment of the polarization fiber optical connector according to the present invention. FIG. 2 is a side sectional view and an external perspective view. In the figure, 1 is an adapter, 2 is a sleeve, 3
and 3' is a plug, 4 and 4' are constant polarization fibers, 6 is a fixed side adapter, 7 is a rotating side adapter,
8 is a holding plate, 9 is a tightening screw, 11 is a sleeve insertion hole, 12 is a male screw, 61 is a screw hole, 62 is a recess, 71 is a protrusion, and 81 is a blank hole.
Claims (1)
自在に当接嵌合する凹、凸部を備えるアダプタ
と、 該アダプタの両端に固定し前記アダプタ内の前
記軸心上で光結合する一対の定偏波フアイバをそ
れぞれに固着したプラグと、 前記凹、凸部を相対的に回動し光結合した一対
の定偏波フアイバの定偏波面を一致させた後、前
記凹凸部を軸心方向に締付けて回動不能にロツク
するリング状の押え板とからなることを特徴とす
る定偏波フアイバ用光コネクタ。[Scope of Claims] 1. An adapter that is divided into two parts perpendicular to an axis and has concave and convex parts that are coaxially rotatably abutted and fitted to the divided surface, and an adapter that is fixed to both ends of the adapter and that is fixed to both ends of the adapter. A plug having a pair of constant polarization fibers optically coupled on the axis is fixed to each of the plugs, and the concave and convex portions are relatively rotated to match the planes of constant polarization of the pair of constant polarization fibers optically coupled. 1. An optical connector for a constant polarization fiber, comprising a ring-shaped holding plate that tightens the concavo-convex portion in the axial direction and locks the concavo-convex portion in an unrotatable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58219947A JPS60111210A (en) | 1983-11-21 | 1983-11-21 | Optical connector for constant polarization fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58219947A JPS60111210A (en) | 1983-11-21 | 1983-11-21 | Optical connector for constant polarization fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60111210A JPS60111210A (en) | 1985-06-17 |
| JPH0527841B2 true JPH0527841B2 (en) | 1993-04-22 |
Family
ID=16743523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58219947A Granted JPS60111210A (en) | 1983-11-21 | 1983-11-21 | Optical connector for constant polarization fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60111210A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239366A (en) * | 1992-02-12 | 1993-08-24 | Huges Aircraft Company | Compact laser probe for profilometry |
| KR20030093437A (en) * | 2002-06-03 | 2003-12-11 | 도남시스템주식회사 | Optical fiber polarization controller |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811707B2 (en) * | 1978-10-23 | 1983-03-04 | 日本電信電話株式会社 | magnetic disk device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811707U (en) * | 1981-07-15 | 1983-01-25 | 株式会社日立製作所 | light guide connector |
-
1983
- 1983-11-21 JP JP58219947A patent/JPS60111210A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5811707B2 (en) * | 1978-10-23 | 1983-03-04 | 日本電信電話株式会社 | magnetic disk device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60111210A (en) | 1985-06-17 |
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