JPH01200308A - Optical connector - Google Patents
Optical connectorInfo
- Publication number
- JPH01200308A JPH01200308A JP2589688A JP2589688A JPH01200308A JP H01200308 A JPH01200308 A JP H01200308A JP 2589688 A JP2589688 A JP 2589688A JP 2589688 A JP2589688 A JP 2589688A JP H01200308 A JPH01200308 A JP H01200308A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- curvature
- connector
- optical
- radius
- 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 27
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は光通信において光ファイバの接続を実現する光
コネクタ、特にガイドピン及び光ファイバがＶ溝によっ
て位置決め固定され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 realizing the connection of optical fibers in optical communication, and particularly to an optical connector in which a guide pin and an optical fiber are positioned and fixed by a V-groove. .
（従来の技術）
第１図はガイドピン及び光ファイバがＶ溝によって位置
決め固定される光コネクタの一例の斜視図である。(Prior Art) FIG. 1 is a perspective view of an example of an optical connector in which a guide pin and an optical fiber are positioned and fixed by a V-groove.
図面に示すように、上面にＶ形状の光フアイバガイド溝
（３）およびガイドピン溝（４）を形成した溝基板（１
）上に、薄膜接着剤層等を介してフラットプレート（２
）を接合して形成されている。しかして、上記光フアイ
バガイド溝（３）とフラットプレート（２）によって形
成される三角形の光ファイバガイド穴内に光ファイバを
挿入して位置決め固定し、ガイドピン溝（４） とフラ
ットプレート（２）によって形成される三角形のガイド
ピン穴にガイドピンを挿入することによって、相対向す
る光コネクタの結合を実現する。As shown in the drawing, a grooved substrate (1) has a V-shaped optical fiber guide groove (3) and a guide pin groove (4) formed on the upper surface.
), a flat plate (2
) is formed by joining. Then, the optical fiber is inserted into the triangular optical fiber guide hole formed by the optical fiber guide groove (3) and the flat plate (2), and is positioned and fixed. By inserting a guide pin into the triangular guide pin hole formed by the guide pin hole, coupling of opposing optical connectors is realized.
このような、光コネクタにおいて、従来の光ファイバ及
びガイドピンを位置決めするＶ溝は、エツチングあるい
は研削により加工されており、■溝底部（３″）（４″
）は尖鋭的形状をなしている。In such optical connectors, the conventional V-groove for positioning the optical fiber and guide pin is processed by etching or grinding.
) has a sharp shape.
（解決しようとする課題）
このように、従来の光コネクタにおいては、■溝底部が
尖鋭的形状をなしているため、例えばガイドピン溝（４
）にガイドピン挿入時、コネクタの着脱時あるいはコネ
クタの結合後に加わる曲げ応力等により、■溝に応力が
加わった場合、Ｖ溝底部に応力が集中して破壊し易いと
いう問題点があった。(Problems to be Solved) As described above, in conventional optical connectors, ■The bottom of the groove has a sharp shape.
) When stress is applied to the groove due to bending stress, etc. applied when inserting a guide pin, attaching and detaching a connector, or after connecting a connector, there is a problem that stress is concentrated at the bottom of the V-groove and easily breaks.
（課題を解決するための手段）
本発明は上述の問題点を解消した光コネクタを提供する
もので、その特徴は、ガイドピン及び光ファイバを位置
決めするＶ溝の底部の形状が、最小曲率部でも３０１Ｉ
ｍ以上の曲率半径を有するように加工されていることに
ある。(Means for Solving the Problems) The present invention provides an optical connector that solves the above-mentioned problems, and is characterized in that the shape of the bottom of the V-groove for positioning the guide pin and the optical fiber has a minimum curvature. But 301I
The reason is that it is processed to have a radius of curvature of m or more.
第２図は本発明の光フアイバコネクタにおけるＶ溝底部
の形状の説明図で、開口角６０″のＶ溝（１ｏ）の底部
を曲率半径ａｏｇｍのＲ加工を施したものである。この
ような形状のＶ溝（！０）は先端をＲ加工したＶブレー
ドにて溝を研削することにより容易に得られる。なお、
図では参考のため、直径＋２５＋ｍの光ファイバ（Ａ）
をＶ溝（１０）に挿入した状態を示している。FIG. 2 is an explanatory diagram of the shape of the bottom of the V-groove in the optical fiber connector of the present invention, in which the bottom of the V-groove (1o) with an opening angle of 60'' is rounded with a radius of curvature aogm. A V-shaped groove (!0) can be easily obtained by grinding the groove with a V blade whose tip is rounded.
For reference, the diagram shows an optical fiber (A) with a diameter of +25+m.
The figure shows the state in which the V-groove (10) is inserted.
（作用）
上述した形状の■溝を具えた光コネクタによれば、ガイ
ドピン挿入時、コネクタの着脱時あるいはコネクタ結合
後における曲げ応力により、Ｖ溝に応力が加わった時に
、■溝底部に応力を集中することをさけることができ、
光コネクタの破壊強度が向上する。(Function) According to the optical connector equipped with the groove of the shape described above, when stress is applied to the V-groove due to bending stress when inserting the guide pin, attaching and detaching the connector, or after connecting the connector, stress is generated at the bottom of the groove. You can avoid concentrating on
Improves the breaking strength of optical connectors.
破壊力学の理論から、切り欠き部に引張り応力が働（場
合、切り欠き部先端の応力拡大係数は切り欠き部先端の
曲率半径に依存し、曲率半径が大きくなるに従って応力
拡大係数は小さくなる。From the theory of fracture mechanics, when tensile stress acts on a notch, the stress intensity factor at the tip of the notch depends on the radius of curvature of the tip of the notch, and as the radius of curvature increases, the stress intensity factor decreases.
又、曲率半径ｒの切り欠き部先端に長さａのクラックが
生じた場合でも、ａが一定であれば、クラック先端の応
力拡大係数はｒが大きい程小さくなる。Further, even when a crack of length a occurs at the tip of a notch with radius of curvature r, as long as a is constant, the stress intensity factor at the tip of the crack becomes smaller as r becomes larger.
（実施例）
本発明の光コネクタの効果を確認するため、次のような
実験を行なった。(Example) In order to confirm the effects of the optical connector of the present invention, the following experiment was conducted.
先端をＲ加工した開口角８０°のブレードを用い、厚み
が！、１−■のシリコンウェハにＶ溝を研削加工し、コ
ネクタの大きさ程度（ＩＯＸ ５■■）にチップ化した
後、上記Ｖ溝に直径０．７−φのガイドピンをのせ、加
圧したときの破壊強度をブレードのＲ加工曲率半径を変
えて測定した。この結果は第３図に示す通りであり、曲
率半径が３０ｊｍ程度までは曲率半径の増大に伴ない、
破壊強度は急激に上昇し、それ以上は強度の増加は緩や
かとなる。Using a blade with a rounded tip and an opening angle of 80°, the thickness is great! After grinding a V-groove into the silicon wafer 1-■ and turning it into a chip of about the size of a connector (IOX 5■■), a guide pin with a diameter of 0.7-φ was placed on the V-groove and pressure was applied. The fracture strength at this time was measured by changing the radius of curvature of the blade. The results are shown in Fig. 3, and as the radius of curvature increases until the radius of curvature is about 30 m,
The breaking strength increases rapidly, and the increase in strength becomes gradual beyond that point.
実際の光コネクタでは、ガイドピンを上からクランプし
て位置決めする場合があり、この時のクランプは約１〜
３ｋｇｆ程度であることから、光コネクタの破壊強度は
信頼性の面から３０．ｋｇｆ以上が要求される。この実
験結果では曲率半径を３ｏｎ以上にすると、９０％以上
のものが３０ににｆ以上の強度を示した。In actual optical connectors, the guide pins may be positioned by clamping them from above, and the clamping at this time is approximately 1~
Since it is about 3 kgf, the breaking strength of the optical connector is 30 kgf from the viewpoint of reliability. kgf or more is required. In this experimental result, when the radius of curvature was set to 3 on or more, more than 90% of the pieces showed a strength of 30 f or more.
（発明の効果）
以上説明したように、本発明の光コネクタによれば、■
溝底部の曲率半径を３（ｈ１ｍ以上にすることにより、
光コネクタの破壊強度を増大することができる。特にガ
イドピン溝と光フアイバガイド溝を同一のブレードで研
削する場合には、■溝の曲率半径は光ファイバの半径（
約ｓ２ｊｍ）より大きくできないが、別のブレードで研
削する場合は、ガイドピン溝の曲率半径を大きくするこ
とができ、より効果的である。(Effects of the Invention) As explained above, according to the optical connector of the present invention, ■
By setting the radius of curvature of the groove bottom to 3 (h1m or more),
The breaking strength of the optical connector can be increased. In particular, when grinding the guide pin groove and the optical fiber guide groove with the same blade, ■ the radius of curvature of the groove is the radius of the optical fiber (
The radius of curvature of the guide pin groove can be increased, which is more effective, if grinding is performed using a separate blade.
このような光コネクタは、例えばコネクタ付き光ケーブ
ルのように、光コネクタの交換が容易にできない分野の
光コネクタに利用すると特に効果的である。Such an optical connector is particularly effective when used in optical connectors in fields where optical connectors cannot be easily replaced, such as optical cables with connectors.
第１図はＶ溝を育する光コネクタの一例の斜視図である
。
第２図は本発明の光コネクタにおけるＶ溝底部の説明図
である。
第３図はＶ溝底部の曲率半径と破壊強度との関係図であ
る。
１・・・溝基板、２・・・フラットプレート、３・・・
光フアイバガイド溝、４・・・ガイドピン溝、１ｏ・・
・Ｖ溝。FIG. 1 is a perspective view of an example of an optical connector that grows a V-groove. FIG. 2 is an explanatory diagram of the V-groove bottom in the optical connector of the present invention. FIG. 3 is a diagram showing the relationship between the radius of curvature of the V-groove bottom and the breaking strength. 1...Groove board, 2...Flat plate, 3...
Optical fiber guide groove, 4... Guide pin groove, 1o...
・V groove.
Claims (1)
め固定される光コネクタにおいて、Ｖ溝底部の形状が、
最小曲率部でも３０μｍ以上の曲率半径を有するよう加
工されていることを特徴とする光コネクタ。(1) In an optical connector in which a guide pin and an optical fiber are positioned and fixed by a V-groove, the shape of the V-groove bottom is
An optical connector characterized in that the optical connector is processed so that even the smallest curvature part has a radius of curvature of 30 μm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2589688A JPH01200308A (en) | 1988-02-05 | 1988-02-05 | Optical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2589688A JPH01200308A (en) | 1988-02-05 | 1988-02-05 | Optical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01200308A true JPH01200308A (en) | 1989-08-11 |
Family
ID=12178554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2589688A Pending JPH01200308A (en) | 1988-02-05 | 1988-02-05 | Optical connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01200308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100915330B1 (en) * | 2008-02-15 | 2009-09-03 | 주식회사 오스테오시스 | Apparatus of Measuring Bone Mineral Density having Selected Initial State |
| US9989714B2 (en) | 2015-10-05 | 2018-06-05 | Sumitomo Electric Industries, Ltd. | Connecting optical part, optical processing apparatus, methods for fabricating connecting optical part, method for fabricating guide member product |
-
1988
- 1988-02-05 JP JP2589688A patent/JPH01200308A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100915330B1 (en) * | 2008-02-15 | 2009-09-03 | 주식회사 오스테오시스 | Apparatus of Measuring Bone Mineral Density having Selected Initial State |
| US9989714B2 (en) | 2015-10-05 | 2018-06-05 | Sumitomo Electric Industries, Ltd. | Connecting optical part, optical processing apparatus, methods for fabricating connecting optical part, method for fabricating guide member product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5408558A (en) | Connecting system with cleaved fiber and crimp termination | |
| US6939055B2 (en) | Stub having an optical fiber | |
| JP7040464B2 (en) | Fiber optic holding components, optical connectors, and optical coupling structures | |
| JPH0634845A (en) | Optical connector | |
| US6550981B1 (en) | Optical module having an optical coupling between an optical fiber and a laser diode | |
| JPH07311314A (en) | Method for polishing tip of optical fiber | |
| US7520677B2 (en) | Non-physical contact visual fault locator coupler | |
| US10071497B2 (en) | Compressive wedge cleaving of optical fibers | |
| EP1312955B1 (en) | Process for coupling optical fibres | |
| JPH01200308A (en) | Optical connector | |
| JPS63113508A (en) | Manufacture of optical fiber array | |
| US20210080651A1 (en) | Optical fiber clamp | |
| JP4374280B2 (en) | Optical connection structure and manufacturing method thereof | |
| JPH0293505A (en) | Optical fiber guide | |
| JPH08179137A (en) | Optical fiber array substrate | |
| JPH08334651A (en) | Multi-fiber optical connector | |
| JP2002139644A (en) | Optical connection device | |
| JPS58113905A (en) | Manufacture of optical fiber connector | |
| KR100347913B1 (en) | Jig for inside diameter processing of ferrule and Method thereof | |
| JP3230073B2 (en) | Optical fiber connecting device and connecting method | |
| JP2005283740A (en) | Optical connection structure and its manufacturing method | |
| JPH03242607A (en) | Sleeve for optical connector | |
| KR20100075829A (en) | Optical connector assembly | |
| JPH09243838A (en) | Terminal structure of bare optical fiber | |
| JPH01155305A (en) | Guide pin for optical connector |