JPS63172106A - Optical connector - Google Patents
Optical connectorInfo
- Publication number
- JPS63172106A JPS63172106A JP385787A JP385787A JPS63172106A JP S63172106 A JPS63172106 A JP S63172106A JP 385787 A JP385787 A JP 385787A JP 385787 A JP385787 A JP 385787A JP S63172106 A JPS63172106 A JP S63172106A
- Authority
- JP
- Japan
- Prior art keywords
- optical connector
- ferrule
- eccentricity
- optical
- coupling
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 99
- 239000013307 optical fiber Substances 0.000 claims abstract description 38
- 238000010168 coupling process Methods 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims abstract description 33
- 238000005859 coupling reaction Methods 0.000 claims abstract description 33
- 239000000835 fiber Substances 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003860 storage Methods 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
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3843—Means for centering or aligning the light guide within the ferrule with auxiliary facilities for movably aligning or adjusting the fibre within its ferrule, e.g. measuring position or eccentricity
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】
(産業上の利用分野)
本発明は光通信線路において、光ファイバを位置決め固
定し結合を実現する光コネクタに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an optical connector for positioning and fixing optical fibers and realizing coupling in an optical communication line.
なお、本発明における光コネクタとは光ファイバを位置
決め固定して結合を実現するハウジングを具えた結合部
材であり、それは必ずしも着脱可能なものだけではなく
、例えば結合後に接若剤等で固定してしまう結合部材を
も含むものとする。In addition, the optical connector in the present invention is a coupling member equipped with a housing that positions and fixes optical fibers to realize coupling, and is not necessarily removable. For example, it can be fixed with adhesive or the like after coupling. It shall also include a connecting member for storage.
(従来技術及び解決しようとする問題点)第3図(イ)
〜(ハ)は従来の光コネクタにおける光コネクタフェル
ール(20)と光コネクタプラグ(2)の取付は状況の
一例の横断面をあられした説明図である。(Prior art and problems to be solved) Figure 3 (a)
- (C) are explanatory diagrams showing a cross section of an example of how an optical connector ferrule (20) and an optical connector plug (2) are attached in a conventional optical connector.
第3図(イ)に示すように、光コ不クタフェルール(2
0)の結合部(22)に対する光ファイバガイド穴(2
3)の偏心fl(24)については従来から測定されて
いたが、例えばフェルールの鍔部(2I)を基準とした
偏心方向についての測定はなされていなかった。光コネ
クタフェルール(20)の鍔(21)には円形部の相対
向した位置に2つの嵌合溝(25)が形成されており、
この嵌合溝(25)が同図(ロ)に示すように光コネク
タプ゛−人、グ(2)(7)内周面に設けた凸部と嵌合
することにν 、
よ・lり光コネクタフェルール(20)の光コネクタプ
ラグ(2)に対する回り止めを実現していたが、このよ
うな構造では、光コネクタプラグ(2)に対し光コネク
タフェルールの取り付けの際の回転角度の選択は180
6単位であり、光コネクタフェルール(2o)の光ファ
イバガイド穴(23)の偏心方向を考慮した取り付けを
実現することは困難で、全(考慮も払われていなかった
。又このような光コネクタと光コネクタアダプタ(4)
との結合についても、第3図(ハ)に示すようにアダプ
タ(4)の内面に光コネクタの凸部(3)と嵌合する凹
部(41)(41)’が相対向する位置に2ケ所設けら
れており、180°の方向での反転結合も可能に構成さ
れていた。As shown in Figure 3 (a), the optical fiber ferrule (2
0) to the coupling part (22) of the optical fiber guide hole (2).
The eccentricity fl (24) of 3) has been measured in the past, but the eccentric direction with respect to the flange (2I) of the ferrule, for example, has not been measured. Two fitting grooves (25) are formed in the collar (21) of the optical connector ferrule (20) at opposite positions of the circular part,
This fitting groove (25) fits with the convex portions provided on the inner peripheral surfaces of the optical connector connector groups (2) and (7) as shown in Figure (B). The optical connector ferrule (20) is prevented from rotating relative to the optical connector plug (2), but in such a structure, it is difficult to select the rotation angle when attaching the optical connector ferrule to the optical connector plug (2). 180
6 units, it is difficult to realize installation that takes into consideration the eccentric direction of the optical fiber guide hole (23) of the optical connector ferrule (2o), and no consideration has been given to the entire optical fiber guide hole (23). and optical connector adapter (4)
As for the coupling with the optical connector, as shown in FIG. The structure was such that reversal coupling in the 180° direction was also possible.
従って、このような光コネクタにおいては、特ニjl−
モードファイバの結合損失についてミルド、現実には極
めて偏心量の少ないフェルールを用い、さらに光フアイ
バガラスの直接接触による結合方式を実現し、フルネル
損失を除去しても、平均0.20dB程度を実現するの
がやっとであり、平均でo、+dB以下にすることは極
めて困難であった。Therefore, in such optical connectors, special
Regarding the coupling loss of mode fibers, we used a ferrule with extremely low eccentricity in reality, and realized a coupling method using direct contact of the optical fiber glass, and even if we removed Fresnel loss, we achieved an average of about 0.20 dB. It was extremely difficult to reduce the average value to below +dB.
(グ誓月の構成)
s’a明は上述の問題点を解消し、低損失な結合を容易
に実現する光コネクタを提供するもので、その特徴は、
光コネクタフェルールの光ファイ/イガイド穴の偏心方
向と光コネクタプラグのアダプタへの結合方向とが一定
の相関関係にあるように位置決めして光コネクタフェル
ールが光コネクタプラグに取付けられていることにある
。(Configuration of Guseigetsu) S'A Ming solves the above-mentioned problems and provides an optical connector that easily realizes low-loss coupling. Its features are:
The optical connector ferrule is attached to the optical connector plug by positioning the optical connector ferrule so that there is a certain correlation between the eccentric direction of the optical fiber/guide hole of the optical connector ferrule and the coupling direction of the optical connector plug to the adapter. .
第1図は本発明の光コネクタの説明図で、同図(イ)は
側面図、同図(ロ)は(イ)図のX−X矢視図、同図(
ハ)は(イ)図の光コネクタと結合するアダプタの正面
図である。又第2図は第1図の光コネクタに用いる光コ
ネクタフェルールの具体例の説明図で、同図(イ)は側
面図、同図−)は(イ)図の右正面図、同図(ハ)は他
の例の正面図である。FIG. 1 is an explanatory diagram of the optical connector of the present invention, in which (A) is a side view, (B) is a view taken along the line X-X in FIG.
(c) is a front view of an adapter that is coupled to the optical connector shown in (a). Fig. 2 is an explanatory diagram of a specific example of the optical connector ferrule used in the optical connector shown in Fig. 1. Fig. 2 (A) is a side view, Fig. 2 -) is a right front view of Fig. 1, and Fig. 2 (A) is a side view. c) is a front view of another example.
本発明の光コネクタの構成の基本は、従来測定していた
光コネクタフェルール(1)の光ファイバガイド穴(1
5)の偏心量に加えて、その偏心方向も併せて測定し、
光コネクタプラグ(2)に対する光コネ方向を限定し、
上記光ファイバガイド穴(15)の偏心方向をある限ら
れた角度内に限定されて結合することにより、光コネク
タフェルール(1)の光ファイバガイド穴(15)の偏
心に起因する結合損失を著しく低減させるものである。The basic structure of the optical connector of the present invention is based on the optical fiber guide hole (1) of the optical connector ferrule (1), which was conventionally measured.
In addition to the amount of eccentricity in 5), the direction of eccentricity is also measured,
Limit the direction of the optical connector to the optical connector plug (2),
By coupling the eccentric direction of the optical fiber guide hole (15) within a certain limited angle, the coupling loss caused by the eccentricity of the optical fiber guide hole (15) of the optical connector ferrule (1) can be significantly reduced. It is intended to reduce
光コネクタフェルール(1)に対する光ファイバの偏心
は、■光ファイバガイド穴の偏心、■光ファイバガイド
穴と光ファイバのクリアランスから生しる偏心、■光フ
ァイバのクラッドに対するコアの偏心の総合的組み合せ
の結果から生じるが、単一モードファイバにおいては、
サブミクロン単位での位置決めが大切で、外径の大きい
光コネクタフェルール(1)に対する光ファイバガイド
穴(15)の偏心を小さくすることが、偏心率に換算す
ると最も製造上きびしく、この偏心を等価的に低減でき
る構造を得ることは、光コネクタにおいて、より低1)
失な結合損失及び容易な製造性を提供するこ合する光コ
ネクタフェルール同志で一致させることに入(本がおか
れているので、フェルールの光ファイバガイド穴の偏心
を単に小さくするだけでなく、一方で一定にすればよい
ことがわかる。例えば、従来では、単一モードファイバ
用の光コネクタフェルールの光ファイバガイド穴の偏心
量は0.5μm以下が一般的であったが、例えば偏心量
が2μmあったとしても、互いに2μmの偏心のある光
コネクタフェルール同志が、偏心方向が同一角度で結合
できれば、等価的には0に近い偏心で結合が実現できる
ことがわかる。この場合大切なことは、偏心量の測定精
度、偏心方向の測定精度、光コネクタプラグへの偏心方
向を考慮した取り付は及びアダプタへの結合角度を限定
することにある。The eccentricity of the optical fiber with respect to the optical connector ferrule (1) is a comprehensive combination of ■ eccentricity of the optical fiber guide hole, ■ eccentricity resulting from the clearance between the optical fiber guide hole and the optical fiber, and ■ eccentricity of the core with respect to the optical fiber cladding. However, in a single mode fiber,
Positioning in submicron units is important, and reducing the eccentricity of the optical fiber guide hole (15) with respect to the optical connector ferrule (1), which has a large outer diameter, is the most difficult manufacturing process when converted to eccentricity, and this eccentricity is equivalent to In optical connectors, it is possible to obtain a structure that can reduce the
In addition to simply reducing the eccentricity of the optical fiber guide hole in the ferrule, it is important to match the optical connector ferrules to each other to provide low coupling loss and easy manufacturability. On the other hand, it can be seen that it is sufficient to keep the eccentricity constant.For example, conventionally, the eccentricity of the optical fiber guide hole of the optical connector ferrule for single mode fiber was generally 0.5 μm or less, but for example, if the eccentricity is Even if the ferrules are 2 μm, if optical connector ferrules with eccentricities of 2 μm can be connected with their eccentric directions at the same angle, then it can be seen that the connection can be achieved equivalently with an eccentricity close to 0. In this case, the important thing is: The measurement accuracy of the amount of eccentricity, the measurement accuracy of the eccentric direction, and the attachment to the optical connector plug take into consideration the eccentric direction, and the coupling angle to the adapter is limited.
本発明の光コネクタを適用する場合は、前述のような大
きい偏心の光コネクタフェルールを有効に利用できるこ
とは勿論だが、従来の0.5μm偏心の光コ不、フタフ
ェルールに適用して、さらに超低、b
I11失化−jはかることも可能となる。従来では0.
5μm偏心の光コネクタフェルール同志を11合させた
場合、光ファイバガイド穴と光ファイバとのクリアラン
スやクラッドに対するコアの偏心をゼロと考えると、偏
心の結合角度によっては最大1μmの偏心が生じること
があり、これは結合損失で約0.17dBに対応してい
た。これに対して本発明では最大でも05μm以下の偏
心になるので、結合損失に対応すると0.04dE3と
なり、0.1dB以上の低減効果がある。実際には前記
のクリアランスやコそ
アの偏心により結合損失は若7劣化するものの、。When applying the optical connector of the present invention, it goes without saying that the optical connector ferrule with a large eccentricity as described above can be effectively used, but it can also be applied to the conventional optical connector ferrule with a 0.5 μm eccentricity and a lid ferrule. It also becomes possible to measure low, b I11 loss-j. Conventionally, it is 0.
When 11 optical connector ferrules with 5 μm eccentricity are combined, assuming that the clearance between the optical fiber guide hole and the optical fiber and the eccentricity of the core with respect to the cladding are zero, an eccentricity of up to 1 μm may occur depending on the coupling angle of the eccentricity. This corresponded to a coupling loss of approximately 0.17 dB. On the other hand, in the present invention, since the eccentricity is at most 05 μm or less, the coupling loss is 0.04 dE3, which has a reduction effect of 0.1 dB or more. In reality, the coupling loss is slightly degraded due to the above-mentioned clearance and eccentricity of the core.
偏心方向を一致させることによる軸ズレの減少効果は同
しであり、平均結合損失が0.1 dB以下の光コネク
タを比較的容易に実現することが可能である。The effect of reducing axis misalignment by matching the eccentric directions is the same, and it is possible to relatively easily realize an optical connector with an average coupling loss of 0.1 dB or less.
第1図及び第2図において、(1)は光ファイバガイド
穴(15)の偏心量(!6)及び偏心方向(I8)を測
定し也
た光コネクタフェルール、(2)は上3ぎネクタフェル
ール(1)を袋打した光コネクタプラグで、その外周の
一部には同図(ハ)に示すアダプタ(4)の内部に形成
した凹、部(41)に嵌合して光コネクタプラグ(2)
を、−)
位置決°I−6″゛しアダプタ(4)に対する回転を防
止する凸部(3)が設けられている。In Figures 1 and 2, (1) is the optical connector ferrule whose eccentricity (!6) and eccentric direction (I8) of the optical fiber guide hole (15) were measured, and (2) is the upper three-way connector. This is an optical connector plug in which a ferrule (1) is punched out, and a part of its outer periphery is fitted into a recess (41) formed inside the adapter (4) shown in FIG. (2)
-) A protrusion (3) is provided for positioning the adapter (4) and preventing rotation relative to the adapter (4).
前記光コネクタフェルール(+)は鍔部m) 、樹1i
成形部(12)、外周に金属パイプ(I3)を一体に成
形した結合!’!T14)及び内部に設けた光ファイバ
ガイド穴(■5)より成っている。この光ファイバガイ
ド穴(I5)のフェルールに対する偏心ff1(Ill
i)及び偏心方向(18)は上述のように精密に測定さ
れ、フェルール鍔部(II)(II)’の外周上には偏
心方向を示す標示(I7)又は凹凸加工(13)を施し
である。この場合、プラグ(2)に対する取り付けに自
由度を増すために、例えばフェルール鍔部(川を正多角
形にし、偏心方向(I8)の鍔の辺に着色する等の標示
(17)を施してもよく、あるいは、偏心方向(18)
とプラグ(2)との取り付けを確実に実現するために円
形鍔部(II)’の1ケ所に偏心方向(18)に凹部(
19)を設けて、これとプラグ(2)内の凸部と嵌合す
るようにしておいてもよい。The optical connector ferrule (+) has a flange m) and a tree 1i.
Molded part (12), metal pipe (I3) integrally molded on the outer periphery! '! T14) and an optical fiber guide hole (■5) provided inside. The eccentricity of this optical fiber guide hole (I5) with respect to the ferrule ff1 (Ill
i) and the eccentric direction (18) are precisely measured as described above, and the outer periphery of the ferrule collar (II) (II)' is marked with a mark (I7) or an uneven surface (13) indicating the eccentric direction. be. In this case, in order to increase the degree of freedom in attachment to the plug (2), for example, the ferrule flange may be marked (17) by making the river into a regular polygon and the side of the flange in the eccentric direction (I8) colored. or eccentric direction (18)
In order to securely attach the plug (2) to the circular flange (II)', a recess (
19) may be provided so as to fit into the convex portion within the plug (2).
」二連のように、例えばフェルールの正多角形鍔i’!
l1l)の1辺に偏心方向(I8)の標示(17)を施
した光コネクタフヱルール(1)の上記標示(17)と
、前述の光コネクタプラグ(2)の外周に設けた凸部(
3)とを対応させて、第1図(ロ)に示すように光コネ
クタフェルール(1)を光コネクタプラグ(2)に取り
付けることにより、光ファイバガイド穴(15)のg
心方向がある角度内に限定されて結合を実現することが
可能となる。なお、図面において、(A)は光フアイバ
フード、(42)はアダプタ(4)内に設けた結合用の
スリーブである。” Like a double series, for example, the regular polygonal tsuba i' of the ferrule!
The above-mentioned marking (17) of the optical connector wall rule (1), which has a marking (17) indicating the eccentric direction (I8) on one side of the optical connector plug (11l), and the convex portion provided on the outer periphery of the optical connector plug (2) mentioned above. (
3), and by attaching the optical connector ferrule (1) to the optical connector plug (2) as shown in Figure 1 (b), the g of the optical fiber guide hole (15) can be adjusted.
It becomes possible to realize bonding by restricting the center direction within a certain angle. In the drawings, (A) is an optical fiber hood, and (42) is a coupling sleeve provided within the adapter (4).
(実施例)
第2図(イ)及び(ロ)に示すような正八角形の鍔部を
有し、結合部外周に金属パイプを有し、その内部及び」
ユ記鍔部はプラスチック成形された光コネクタフェルー
ルを作成し、このフェルールのQ 心fit及び偏心方
向を測定すると共に、偏心方向を正八角形の鍔の一辺に
標示することにより容易にわか1八
るようにし、茫。(Example) It has a regular octagonal collar as shown in Figures 2 (a) and (b), has a metal pipe around the outer periphery of the joint, and has a
For the flange part, a plastic-molded optical connector ferrule is made, and the Q center fit and eccentric direction of this ferrule are measured, and the eccentric direction is marked on one side of the regular octagonal flange so that it can be easily determined. Nishi, So.
従来通り、偏心0.5μm以下の光コネクタフェルール
に単に光ファイバを取り付けて構成した光コネクタと、
同じ偏心0.5μm以下でかつ偏心方向を考慮して構成
した本発明の光コネクタの2種類を作成し評価した。な
お、光ファイバはいずれもコア偏心が0.6%以下、ク
リアランスも0.8μm以下の同種光ファイバを用いた
。又光コネクタのプラグとアダプタとの結合構造はプッ
ンユオン式とし、一方向のみ結合させるようにしてテス
トした。An optical connector configured by simply attaching an optical fiber to an optical connector ferrule with an eccentricity of 0.5 μm or less as before,
Two types of optical connectors of the present invention were created and evaluated, each having the same eccentricity of 0.5 μm or less and with the eccentric direction taken into consideration. The optical fibers used were of the same type, each having a core eccentricity of 0.6% or less and a clearance of 0.8 μm or less. In addition, the coupling structure between the optical connector plug and the adapter was a push-on type, and tests were conducted by coupling only in one direction.
結合損失は従来構造では平均0゜18dBであったのに
対し、本発明の光コネクタでは平均0.07dBを実現
できた。又本発明の光コネクタについて信頼性確認のた
めむ脱テストと一30°C〜+70°Cのヒートサイク
ルテストを実施したが、着脱再現性については0.03
dB以内、ヒートサイクルによる損失変動は0.04d
B以内で、いずれも良好で信頼性の而からも間mのない
ことが確認された。なお、偏心方向の測定は、本実施例
では光学的画像処理を利用することにより測定したが、
勿論他の測定方法を利用してもよい。While the coupling loss in the conventional structure was 0.18 dB on average, the optical connector of the present invention achieved an average coupling loss of 0.07 dB. Furthermore, the optical connector of the present invention was subjected to a disconnection test to confirm reliability and a heat cycle test from -30°C to +70°C, but the reproducibility of connection and disconnection was 0.03.
Within dB, loss variation due to heat cycle is 0.04d
It was confirmed that all of the results were within B, and that there was no problem in terms of reliability. Note that the eccentric direction was measured using optical image processing in this example.
Of course, other measurement methods may also be used.
(発明の効果)
上述した本発明の光コネクタによれば、次に列記するよ
うな効果を奏するものである。(Effects of the Invention) The above-described optical connector of the present invention provides the following effects.
■光コネクタフェルールの光ファイバガイド穴の偏心方
向を一致させて結合させるので、従来では達成できなか
った超低tn失結合を比較的容易に実現できる。(2) Since the eccentric directions of the optical fiber guide holes of the optical connector ferrule are matched and the optical fibers are coupled, ultra-low tn decoupling, which could not be achieved in the past, can be achieved relatively easily.
■偏心量が比較的大きい光コネクタフェルールについて
も、その偏心量が同程度のものを用い、かつ偏心方向を
一致させて結合することにより、ML<結合損失の低減
を実現することができる。(2) Even for optical connector ferrules with a relatively large amount of eccentricity, a reduction in ML<coupling loss can be achieved by using ferrules with the same amount of eccentricity and coupling them with the eccentric directions matched.
■フェルールの鍔部を正多角形にし、偏心方向の標示を
その1辺につけることにより、光コネクタプラグに対す
る光コネクタフェルールの偏心方向を考慮した取り付け
を容易に行なうことが出来る。(2) By making the flange of the ferrule into a regular polygon and marking the eccentric direction on one side, it is possible to easily attach the optical connector ferrule to the optical connector plug in consideration of the eccentric direction.
■フェルールの鍔部に、偏心方向を対応づける凹部又は
凸部を設け、これをプラグに設けた凸部又は凹部と嵌合
することにより、確実に光コネクタプラグに対して光コ
ネクタフェルールの偏心方向を一致させて取り付けるこ
とが出来る。■By providing a concave or convex part on the flange of the ferrule that corresponds to the eccentric direction, and fitting this with the convex or concave part provided on the plug, the eccentric direction of the optical connector ferrule with respect to the optical connector plug can be ensured. can be installed by matching them.
なお、以上の説明では、偏心方向を示す凹凸や標示は偏
心最大毒の方向と一致させているが、両者の対応がつけ
ばよく、逆の位置に凹凸や標示を第1図は本発明の光コ
ネクタの具体例の説明図で、同図(イ)は側面図、同図
(ロ)は(イ)図のX−X矢視図、同図(ハ)は(イ)
図の光コネクタと結合するアダプタの正面図である。In the above explanation, the unevenness and markings indicating the direction of eccentricity are made to coincide with the direction of maximum eccentricity, but it is sufficient to have a correspondence between the two, and FIG. 1 shows the unevenness and markings in the opposite position. These are explanatory diagrams of a specific example of an optical connector. The figure (A) is a side view, the figure (B) is a view taken along the line X-X in figure (A), and the figure (C) is a figure (A).
FIG. 3 is a front view of an adapter coupled to the optical connector shown in the figure.
第2図は第1図の光コネクタに用いる光コネクタフェル
ールの説明図で、同図(イ)は側面図、同図(ロ)は(
イ)図の右正面図、同図(ハ)は他の例の正面図である
。Figure 2 is an explanatory diagram of the optical connector ferrule used in the optical connector in Figure 1, where (A) is a side view and (B) is (
(a) is a right front view of the figure, and (c) is a front view of another example.
第3図は従来の光コネクタの一例の説明図で、同図(イ
)は光コネククフェルールの正面図、同図(0)は(イ
)図のフェルールを光コネクタプラグに取り付けた状態
の正面図、同図(ハ)はアダプタの正面図である。Figure 3 is an explanatory diagram of an example of a conventional optical connector. Figure (A) is a front view of the optical connector ferrule, and Figure (0) is the state in which the ferrule shown in Figure (A) is attached to the optical connector plug. Front view: Figure (C) is a front view of the adapter.
霊 1 回Spirit 1 time
Claims (4)
ネクタにおいて、光コネクタフェルールの光ファイバガ
イド穴の偏心方向と光コネクタプラグのアダプタへの結
合方向とが一定の相関関係にあるように位置決めして光
コネクタフェルールが光コネクタプラグに取付けられて
いることを特徴とする光コネクタ。(1) In an optical connector that positions and fixes an optical fiber to realize coupling, the optical connector is positioned so that the eccentric direction of the optical fiber guide hole of the optical connector ferrule and the coupling direction of the optical connector plug to the adapter have a certain correlation. An optical connector characterized in that an optical connector ferrule is attached to an optical connector plug.
いることを特徴とする特許請求の範囲第1項記載の光コ
ネクタ。(2) The optical connector according to claim 1, wherein the flange of the optical connector ferrule has a regular polygonal shape.
ド穴の偏心方向を示す標示がなされており、該標示を基
準として光コネクタフェルールが光コネクタプラグに取
付けられていることを特徴とする特許請求の範囲第1項
記載の光コネクタ。(3) A patent characterized in that a marking indicating the eccentric direction of the optical fiber guide hole is made on a part of the outer periphery of the optical connector plug, and the optical connector ferrule is attached to the optical connector plug with reference to the marking. An optical connector according to claim 1.
穴と相関関係にある凸部又は凹部を有し、この部分が光
コネクタプラグの凹部又は凸部と嵌合して取付けられて
いることを特徴とする特許請求の範囲第1項記載の光コ
ネクタ。(4) The flange of the optical connector ferrule has a convex part or a concave part that correlates with the optical fiber guide hole, and this part is installed by fitting into the concave part or convex part of the optical connector plug. An optical connector according to claim 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP385787A JPS63172106A (en) | 1987-01-09 | 1987-01-09 | Optical connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP385787A JPS63172106A (en) | 1987-01-09 | 1987-01-09 | Optical connector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63172106A true JPS63172106A (en) | 1988-07-15 |
Family
ID=11568856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP385787A Pending JPS63172106A (en) | 1987-01-09 | 1987-01-09 | Optical connector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63172106A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02140709A (en) * | 1988-11-21 | 1990-05-30 | Seiko Giken:Kk | Optical fiber connector |
JPH0411502U (en) * | 1990-05-21 | 1992-01-30 | ||
JPH0651165A (en) * | 1992-05-27 | 1994-02-25 | American Teleph & Telegr Co <Att> | Automatic aligning type optical fiber connector |
WO1996030790A1 (en) * | 1995-03-24 | 1996-10-03 | The Whitaker Corporation | Overmolded fiber optic connector ferrule capillary having octagonal collar |
WO2002041062A3 (en) * | 2000-11-06 | 2002-11-07 | Corning Cable Sys Llc | Low-loss intermatable ferrules for optical fibers and a method of fabrication thereof |
US20170139152A1 (en) * | 2012-02-20 | 2017-05-18 | Commscope Technologies Llc | Fiber optic connector, fiber optic connector and cable assembly, and methods for manufacturing |
-
1987
- 1987-01-09 JP JP385787A patent/JPS63172106A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02140709A (en) * | 1988-11-21 | 1990-05-30 | Seiko Giken:Kk | Optical fiber connector |
JPH0411502U (en) * | 1990-05-21 | 1992-01-30 | ||
JPH0651165A (en) * | 1992-05-27 | 1994-02-25 | American Teleph & Telegr Co <Att> | Automatic aligning type optical fiber connector |
WO1996030790A1 (en) * | 1995-03-24 | 1996-10-03 | The Whitaker Corporation | Overmolded fiber optic connector ferrule capillary having octagonal collar |
US6203209B1 (en) | 1995-03-24 | 2001-03-20 | The Whitaker Corporation | Overmolded fiber optic connector ferrule capillary having octagonal collar |
WO2002041062A3 (en) * | 2000-11-06 | 2002-11-07 | Corning Cable Sys Llc | Low-loss intermatable ferrules for optical fibers and a method of fabrication thereof |
US6742936B1 (en) * | 2000-11-06 | 2004-06-01 | Corning Cable Systems Llc | Low-loss intermatable ferrules for optical fibers and a method of fabrication thereof |
US20170139152A1 (en) * | 2012-02-20 | 2017-05-18 | Commscope Technologies Llc | Fiber optic connector, fiber optic connector and cable assembly, and methods for manufacturing |
US10353154B2 (en) * | 2012-02-20 | 2019-07-16 | Commscope Technologies Llc | Fiber optic connector, fiber optic connector and cable assembly, and methods for manufacturing |
US11125951B2 (en) | 2012-02-20 | 2021-09-21 | Commscope Technologies Llc | Fiber optic connector, fiber optic connector and cable assembly, and methods for manufacturing |
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