JPH01233407A - Ferrule for connecting elliptic through hole type optical fiber - Google Patents
Ferrule for connecting elliptic through hole type optical fiberInfo
- Publication number
- JPH01233407A JPH01233407A JP6072388A JP6072388A JPH01233407A JP H01233407 A JPH01233407 A JP H01233407A JP 6072388 A JP6072388 A JP 6072388A JP 6072388 A JP6072388 A JP 6072388A JP H01233407 A JPH01233407 A JP H01233407A
- Authority
- JP
- Japan
- Prior art keywords
- ferrule
- elliptic
- hole
- optical fiber
- elliptical
- 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
- 239000013307 optical fiber Substances 0.000 title claims abstract description 15
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 5
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 101100264174 Mus musculus Xiap gene Proteins 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005467 ceramic manufacturing process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、楕円貫通孔形光ファイバ接続用フェルールの
製造方式に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing an elliptical through-hole type ferrule for connecting optical fibers.
（従来の技術）
光フアイバ接続用フェルールの貫通孔の形状は、円形断
面を有する光ファイバを低偏心で接着するために真円が
理想とされている。しかし、近年実用化された偏波面保
存光ファイバに用いる光フアイバ接続用フェルールとし
て、接着後の消光比劣化防止に有効な楕円状の貫通孔を
有する楕円貫通孔形光７アイパ接続用フエルールが求め
られている。(Prior Art) The ideal shape of the through hole of a ferrule for connecting an optical fiber is a perfect circle in order to bond an optical fiber having a circular cross section with low eccentricity. However, as a ferrule for connecting optical fibers used in polarization-maintaining optical fibers that have been put into practical use in recent years, there is a demand for an elliptical through-hole type optical 7-eyeper connecting ferrule that has an elliptical through hole that is effective in preventing deterioration of the extinction ratio after bonding. It is being
従来、上記技術にはセラミック製造工程におけるグリー
ンシートに相当する材料で円筒状母材を成形し、さらに
ダイスを通して押出すことによシ細径化して、得られる
円形貫通孔形光ファイバ接続用フェルールの押出し工程
の条件を最適条件から故意にずらし、楕円貫通孔形光７
アイパ接続用７エルールを得る方式が公知である。Conventionally, the above technology involves molding a cylindrical base material from a material equivalent to a green sheet in the ceramic manufacturing process, and then extruding it through a die to reduce the diameter, thereby producing a circular through-hole ferrule for optical fiber connection. The conditions of the extrusion process were intentionally shifted from the optimum conditions, and the
A method for obtaining seven errules for AIP connection is known.
（発明が解決しようとする課題）
上述した従来の楕円貫通孔形光ファイバ接続用フェルー
ルでは、得られる楕円貫通孔形状の再現性に乏しく、良
品率が極めて低いという欠点がある。(Problems to be Solved by the Invention) The above-described conventional elliptical through-hole type optical fiber connection ferrule has the disadvantage that the reproducibility of the obtained elliptical through-hole shape is poor and the yield rate is extremely low.
本発明の目的は、所望の楕円断面を有する金属細線を芯
としてフェルール材料を押出し、細径化した後洗金属細
線を引抜いて未焼結フェルールを得ることにより上記欠
点を除去し、良品率を向上できるように構成した楕円貫
通孔形光フ・アイル接続用フェルールを提供することに
ある。The purpose of the present invention is to extrude a ferrule material using a thin metal wire having a desired elliptical cross section as a core, and to obtain an unsintered ferrule by drawing out the fine-diameter washed metal wire, thereby eliminating the above-mentioned drawbacks and increasing the yield rate. It is an object of the present invention to provide a ferrule for optical fiber connection with an elliptical through hole that is configured to improve performance.
（原題を解決するための手段）
本発明による楕円貫通孔形光７アイパ接続用フエルール
は、円筒状成形体と、楕円貫通孔とを具備して構成し九
ものである。(Means for Solving the Original Problem) The elliptical through-hole-shaped optical 7-eyeper connection ferrule according to the present invention is constructed by comprising a cylindrical molded body and an elliptical through-hole.
円筒状成形体は、金属酸化物の粉末と適当なバインダと
を調整混合した後、ダイスを通して押出したものである
。The cylindrical molded body is obtained by extruding the metal oxide powder and a suitable binder through a die after adjusting and mixing the mixture.
楕円貫通孔は、円筒状成形体の中心貫通孔位置に楕円断
面を有する金属細線を連続的に配置せしめ、細線化して
引抜き焼結させるととくより生ずるものである。The elliptical through-hole is particularly formed when a thin metal wire having an elliptical cross section is continuously arranged at the central through-hole position of a cylindrical molded body, thinned, drawn and sintered.
（実施例） 次に、本発明について図面を参照して詳細に説明する。(Example) Next, the present invention will be explained in detail with reference to the drawings.
第１図は、本発明による楕円貫通孔形光７アイパ接続用
フエルールの一実施例における断面を示す説明図であり
０第１図において、１は楕円貫通孔、２は楕円貫通孔形
光７アイパ接続用フエルールである。FIG. 1 is an explanatory view showing a cross section of an embodiment of an elliptical through-hole type optical 7 eyer connection ferrule according to the present invention. In FIG. This is a ferrule for connecting AIPA.
第１図に示す楕円貫通孔形光７アイパ接続用フエルール
は、次のようにして製造することができる。まず、通常
のセラミックス製造方法と同様に、単一または複数の金
属酸化物粉末と適当なバインダとを調整混合して、グリ
ーンシートに相当する原料を作成する。次いで、これを
円筒状に成型し、ダイスを通して細径化するうこの際、
円筒状成形物の中心貫４孔に所望の楕円断面を有する金
属細線を配し、連続的に押して同軸状複合体を得る。The elliptical through-hole optical 7-eyeper connection ferrule shown in FIG. 1 can be manufactured as follows. First, in the same way as in a normal ceramic manufacturing method, a raw material corresponding to a green sheet is prepared by adjusting and mixing a single metal oxide powder or a plurality of metal oxide powders and a suitable binder. Next, this is formed into a cylindrical shape and passed through a die to reduce the diameter.
Fine metal wires having a desired elliptical cross section are placed in four holes through the center of the cylindrical molded product, and are continuously pressed to obtain a coaxial composite.
第２図は、第１図に示す楕円貫通孔形光７アイパ接続用
フエルールを製造するため、連続的に押出して形成し九
同軸状複合体の断面を示す説明図である。第２図におい
て、３は金属細線である。FIG. 2 is an explanatory diagram showing a cross section of a nine-coaxial composite body formed by continuous extrusion in order to manufacture the elliptical through-hole optical seven-eyeper connection ferrule shown in FIG. In FIG. 2, 3 is a thin metal wire.
第２図に示す同軸状複合体についで、楕円断面を有する
金属ｍ線３の両端を引張ることにより細径化させて引抜
き、楕円貫通孔を有する未焼結フェルールを作成する。Following the coaxial composite shown in FIG. 2, a metal m-wire 3 having an elliptical cross section is pulled at both ends to reduce its diameter and then drawn out to produce an unsintered ferrule having an elliptical through hole.
さらに、上記未焼結フェルールを高温で′焼結して、ｗ
Ｊ１図に示すような楕円貫通孔１を有する楕円貫通孔形
光ファイバ接続用７エルール２を得る。Furthermore, the above-mentioned unsintered ferrule is sintered at high temperature, and w
An elliptical through-hole type seven errule 2 for optical fiber connection having an elliptical through-hole 1 as shown in Fig. J1 is obtained.
（発明の効果）
以上説明し虎ように本発明は、所望の楕円断面を有する
金属細線を芯としてフェルール材料を押出し、細径化し
た後に金属ＭｆＵ′ａを引抜いて未焼結フェルールを得
ること釦より、再現性に優れ九楕円貫通孔を有する光フ
アイバ接続用フェルールを高い良品率で得ることができ
るという効果がある。(Effects of the Invention) As explained above, the present invention involves extruding a ferrule material using a thin metal wire having a desired elliptical cross section as a core, reducing the diameter, and then pulling out the metal MfU′a to obtain an unsintered ferrule. This method has the effect that it is possible to obtain optical fiber connecting ferrules having nine elliptical through holes with excellent reproducibility and a high yield of non-defective products compared to buttons.
＠１図は、本発明による楕円貫通孔形光ファイバ接続用
フェルールの一実施例の断面を示す説明図である。
＠２図は、第１図に示す同軸状複合体を引張って生成し
た同軸体の断面を示す説明図である。
１・・・楕円貫通孔
２・・・７エルール
３・・・金属細線Figure @1 is an explanatory view showing a cross section of an embodiment of an elliptical through-hole type optical fiber connection ferrule according to the present invention. Fig. 2 is an explanatory diagram showing a cross section of a coaxial body produced by stretching the coaxial composite shown in Fig. 1. 1...Oval through hole 2...7 Errule 3...Thin metal wire
Claims (1)
、ダイスを通して押出した円筒状成形体と、前記円筒状
成形体の中心貫通孔位置に楕円断面を有する金属細線を
連続的に配置せしめ、細線化して引抜き焼結させること
により生ずる楕円貫通孔とを具備して構成したことを特
徴とする楕円貫通孔形光ファイバ接続用フエルール。After adjusting and mixing metal oxide powder and a suitable binder, a cylindrical molded body is extruded through a die, and a thin metal wire having an elliptical cross section is continuously arranged at the central through-hole position of the cylindrical molded body, A ferrule for connecting an optical fiber in the form of an elliptical through-hole, characterized in that it is configured with an elliptical through-hole produced by drawing and sintering the thin wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6072388A JPH01233407A (en) | 1988-03-15 | 1988-03-15 | Ferrule for connecting elliptic through hole type optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6072388A JPH01233407A (en) | 1988-03-15 | 1988-03-15 | Ferrule for connecting elliptic through hole type optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01233407A true JPH01233407A (en) | 1989-09-19 |
Family
ID=13150483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6072388A Pending JPH01233407A (en) | 1988-03-15 | 1988-03-15 | Ferrule for connecting elliptic through hole type optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01233407A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0559411U (en) * | 1991-12-28 | 1993-08-06 | 三和電気工業株式会社 | Split sleeve for optical connector |
| WO2000072069A1 (en) * | 1999-05-21 | 2000-11-30 | Tyco Electronics Logistics Ag | Ferrule for an optical waveguide |
| WO2020052552A1 (en) * | 2018-09-11 | 2020-03-19 | 山东大学 | Machining process for profile with internal micropores |
-
1988
- 1988-03-15 JP JP6072388A patent/JPH01233407A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0559411U (en) * | 1991-12-28 | 1993-08-06 | 三和電気工業株式会社 | Split sleeve for optical connector |
| WO2000072069A1 (en) * | 1999-05-21 | 2000-11-30 | Tyco Electronics Logistics Ag | Ferrule for an optical waveguide |
| WO2020052552A1 (en) * | 2018-09-11 | 2020-03-19 | 山东大学 | Machining process for profile with internal micropores |
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