JPS6371815A - Ferrule for optical fiber - Google Patents

Ferrule for optical fiber

Info

Publication number
JPS6371815A
JPS6371815A JP21591586A JP21591586A JPS6371815A JP S6371815 A JPS6371815 A JP S6371815A JP 21591586 A JP21591586 A JP 21591586A JP 21591586 A JP21591586 A JP 21591586A JP S6371815 A JPS6371815 A JP S6371815A
Authority
JP
Japan
Prior art keywords
elastic body
optical fibers
ferrules
ferrule
optical fiber
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
Application number
JP21591586A
Other languages
Japanese (ja)
Inventor
Kiyoshi Hajikano
初鹿野　清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP21591586A priority Critical patent/JPS6371815A/en
Publication of JPS6371815A publication Critical patent/JPS6371815A/en
Pending legal-status Critical Current

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  • Mechanical Coupling Of Light Guides (AREA)

Abstract

PURPOSE:To complete a coupling by sticking an elastic body to the tip parts of ferrules for connecting optical fibers and connecting said fibers within the hole diameter of the elastic body. CONSTITUTION:The optical fibers 1 and 2 are coupled at a coupling point 3. The tip parts of the ferrules 11 and 21 are provided with the elastic body 4, which has the hole diameter. Therein the optical fibers 1 and 2 are coupled. The elastic body 4 has elasticity higher than those of the ferrules 11 and 21. When the ferrules 11 and 21 become closer to give pressure, the elastic body 4 shrinks to couple the optical fibers 1 and 2. A gap 6 is provided so that the elastic body 4 can shrink by pressure, and the ferrules 11 and 21 are movably covered by a sleeve 5. By pressing the optical fibers 1 and 2 by a fine pressure, the coupling is completed.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、光通信線の継続に供される光ファイバー用フ
ェルールに係わるものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an optical fiber ferrule used for continuation of an optical communication line.

（従来の技術） 従来の技術では、光ファイバーの接合の精度は、フェル
ールの精度によって決まるとされていたが最近の研究で
は、その精度以外にも、光ファイバー相互の密着度が重
要なる条件であることが分かって来た。そこで、光ファ
イバーに密着度を高める為に、フェルール相互の接触端
面に押圧力をくわえることが必要である、その為に番か
、フェルールの先端部を凸面形状として、材質には、ジ
ルコニアが最適であるという技術上の見解がある。(Conventional technology) In conventional technology, the accuracy of joining optical fibers was determined by the accuracy of the ferrule, but recent research has shown that in addition to that accuracy, the degree of adhesion between the optical fibers is also an important condition. I came to understand. Therefore, in order to increase the degree of adhesion to the optical fiber, it is necessary to apply a pressing force to the contact end surfaces of the ferrules.For this purpose, the tips of the ferrules are made into a convex shape, and zirconia is the optimal material. There is a technical opinion that there is.

（発明が、解決しようとする問題点） この発明が解決しようとする問題点は、フェルールの精
密な接合ではなくて、光ファイバー自身の相互の接合を
計るものである。従来の光ファイバーはフェルールの中
に挿在して、先端部も光ファイバーも、フェルールの先
端部と同じ表面上である事が大事であるとされて来た。(Problems to be Solved by the Invention) The problem to be solved by the present invention is not the precise joining of ferrules, but the mutual joining of optical fibers themselves. Conventional optical fibers are inserted into ferrules, and it has been considered important that both the tip and the optical fiber be on the same surface as the tip of the ferrule.

従って、フェルール相互の密着が光ファイバー相互の密
着と考えられて来た。Therefore, the close contact between ferrules has been considered to be the close contact between optical fibers.

しかし、問題は、光ファイバー相互を完全に接合させる
為には、フェルールの中に、光ファイバーの先端部が挿
在させであるのでは、完全ではないこの発明では、フェ
ルールより光ファイバーの先端部は突出させてあって、
その先端部は、弾性体の孔径内に挿在させである。この
弾性体の孔径内で、光ファイバーを接合させることによ
・って、従来の技術によって、解決出来なかった諸問題
点を解明出来るものである。However, the problem is that in order to completely join the optical fibers together, the tip of the optical fiber must be inserted into the ferrule, which is not perfect.In this invention, the tip of the optical fiber should not protrude beyond the ferrule. There it is,
The tip portion is inserted into the hole diameter of the elastic body. By joining optical fibers within the pore diameter of this elastic body, various problems that could not be solved by conventional techniques can be solved.

第１図はこの発明の１実施例の斜視図である。FIG. 1 is a perspective view of one embodiment of the invention.

１と２は接合すべき光ファイバーである。３はその接合
点である。１１と２１はフェルールである４はフェルー
ルの先端部に在る弾性体である。この弾性体には、孔径
があって、この孔径内で、光ファイバー相互が接合され
るものである。この弾性体の孔径は、同軸度等の結反は
必要でない。弾性体であって、光ファイバーの外皮と同
様なる程度の弾性体以上の必要がある。フェルール相互
を近づける押圧力を付与すると、弾性体はちじんで光フ
ァイバーが相互に接合する事が出来る。1 and 2 are optical fibers to be joined. 3 is the junction point. 11 and 21 are ferrules, and 4 is an elastic body located at the tip of the ferrule. This elastic body has a hole diameter within which the optical fibers are joined together. The pore diameter of this elastic body does not need to be coaxial or similar. It needs to be an elastic body, and at least as elastic as the outer sheath of an optical fiber. When a pressing force is applied to bring the ferrules closer together, the elastic body breaks away and the optical fibers can be joined to each other.

この弾性体が押圧力によって、収縮が出来るように、６
の間隙がある。５は、フェルールが移動自在ならしめる
為のスリーブである。6 so that this elastic body can be contracted by the pressing force.
There is a gap. 5 is a sleeve for allowing the ferrule to move freely.

光ファイバー接合が適切であるかどうかを、弾性体の孔
径内での接合することが、光ファイバー相互の微妙なる
押圧力によって、接合を完全にすることが出来るもので
ある。Whether or not optical fiber joining is appropriate is determined by joining within the pore diameter of the elastic body, and by applying subtle pressing force between the optical fibers, the joining can be completed.

フェルール相互の接触端面に押圧力を与えて、光ファイ
バーを最も反射損失の少ないときに、４の弾性体が収縮
して、孔内で光ファイバーを軽く押える力を付与すると
いう、微妙なる制御を計ることが出来る。何回となく、
数かぎりない接合の回数によって、光ファイバー自身も
接合条件も、変化するものである。しかしこの発明によ
れば、その都度弾性体で押圧力を受止めることが出来る
のであるから容易に適確なる接合の条件に合せる事が可
能であるこの発明では、従来のフェルールが有していた
、性能でフェルールの孔径が精確なる同軸度を有しない
でも、光ファイバーの接合は弾性体の中で、精確なる接
合が可能である。従ってフェルールの高価である必要が
なく、市場に安価に提供出来るものである。By applying a pressing force to the contact end surfaces of the ferrules, when the optical fiber has the least reflection loss, the elastic body 4 contracts, applying a force that lightly presses the optical fiber within the hole. I can do it. Many times,
Both the optical fiber itself and the splicing conditions change due to the infinite number of splicings. However, according to this invention, since the pressing force can be received by the elastic body each time, it is possible to easily match the appropriate bonding conditions. In terms of performance, even if the ferrule hole diameter does not have precise coaxiality, optical fibers can be joined accurately in an elastic body. Therefore, the ferrule does not need to be expensive and can be provided to the market at low cost.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明に係わる１実施例の斜視図である１、２
・・・光ファイバー。１１．２１・・・フェルール。３
・・・光ファイバー接合点。４・・・弾性体。５・・・
スリーブ。６・・・間隙。FIG. 1 is a perspective view of one embodiment of the present invention.
...Optical fiber. 11.21... Ferrule. 3
...Optical fiber junction. 4...Elastic body. 5...
sleeve. 6... Gap.

Claims (1)

【特許請求の範囲】[Claims] （１）光ファイバー接続用のフェルールの先端部に弾性
体を付着させて、当該弾性体の孔径内で光ファイバー相
互の接続を可能にしたことを特徴とする光ファイバー用
フェルール。(1) A ferrule for optical fibers, characterized in that an elastic body is attached to the tip of the ferrule for connecting optical fibers, thereby making it possible to connect optical fibers to each other within the pore diameter of the elastic body.
JP21591586A 1986-09-16 1986-09-16 Ferrule for optical fiber Pending JPS6371815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21591586A JPS6371815A (en) 1986-09-16 1986-09-16 Ferrule for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21591586A JPS6371815A (en) 1986-09-16 1986-09-16 Ferrule for optical fiber

Publications (1)

Publication Number Publication Date
JPS6371815A true JPS6371815A (en) 1988-04-01

Family

ID=16680358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21591586A Pending JPS6371815A (en) 1986-09-16 1986-09-16 Ferrule for optical fiber

Country Status (1)

Country Link
JP (1) JPS6371815A (en)

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