JPS6219365A - Optical fiber polishing of convex spherical tip connector - Google Patents
Optical fiber polishing of convex spherical tip connectorInfo
- Publication number
- JPS6219365A JPS6219365A JP15759985A JP15759985A JPS6219365A JP S6219365 A JPS6219365 A JP S6219365A JP 15759985 A JP15759985 A JP 15759985A JP 15759985 A JP15759985 A JP 15759985A JP S6219365 A JPS6219365 A JP S6219365A
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- optical fiber
- convex spherical
- spherical surface
- ferrule
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B19/226—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground of the ends of optical fibres
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、光ファイバを接続する光ファイバコネクタに
関し、先端凸球面コネクタに引き通さnた光ファイバ先
端の新規な研磨方法である。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an optical fiber connector for connecting optical fibers, and is a novel method for polishing the tip of an optical fiber that is passed through a convex spherical tip connector.
「従来技術と問題点」
従来の光ファイバ用のコネクタはフエルールといbnる
パーツの芯心に穿った小孔に光ファイバχ引き通して接
着剤で固着させ、この後にフエルールの先端面を光ファ
イバ先端面と一体的に平坦面(0,1,P程度)に研磨
仕上げしている。そして、コネクタの着脱回数が多い場
合、光ファイバの接続損失が次第に大きくならない様、
光ファイバ端面部分のみを凹状に仕上げしていた。この
手段では、最初から接続損失が大きいという欠点があり
、その解決策として、2本の光ファイバ端面を密着接続
すnば、接続損失が小さくなることは従来から知られて
いた@
そこで、第2図に示す様な7工ルール1先端乞凸球面2
に加工したコネクタ100が開発されたか、第2図(ロ
)の如く、中心に小孔3が穿たれ、その外周にセラミッ
ク筒体5を備え(セラミックスに小孔3が明けらnてい
る)ステンレス筒体4で被覆したものである。勿論ステ
ンレス筒体4を省略したフェルールも存在する。上記の
如く先端を凸 □球面2に加工したフェルール1の小
孔3に光ファイバF乞接着剤6と一緒に通すとき、凸球
面2から少量だけ光ファイバの先端F’Y突出すると共
に接着剤も6′の如く盛り上げる必要がある。``Prior art and problems'' In conventional optical fiber connectors, an optical fiber χ is passed through a small hole drilled in the core of a part called a ferrule and fixed with adhesive, and then the tip of the ferrule is attached to the optical fiber. It is polished to a flat surface (approximately 0, 1, P) integrally with the tip surface. In addition, when the connector is connected and disconnected many times, it is necessary to prevent the connection loss of the optical fiber from increasing gradually.
Only the end face of the optical fiber was finished in a concave shape. This method has the disadvantage that the splice loss is large from the beginning, and as a solution to this problem, it has been known for a long time that the splice loss can be reduced by closely splicing the end faces of two optical fibers. 7 rules as shown in Figure 2 1 Convex convex spherical surface 2
As shown in Fig. 2 (b), a connector 100 machined into a connector 100 has been developed, which has a small hole 3 in the center and a ceramic cylindrical body 5 on its outer periphery (the small hole 3 is made in the ceramic). It is covered with a stainless steel cylindrical body 4. Of course, there are also ferrules in which the stainless steel cylinder body 4 is omitted. As shown above, the tip is convex. □When passing the optical fiber together with the adhesive 6 through the small hole 3 of the ferrule 1 machined into the spherical surface 2, the tip F'Y of the optical fiber protrudes a small amount from the convex spherical surface 2 and the adhesive It is also necessary to raise it like 6'.
このようなフエルール1の凸球面2の先端面を研磨する
には、光ファイバを通す前に加工した凸球面加工研磨機
を必要とする。しかしながら、一般ユーザには、光ファ
イバの端面を平坦面に仕上研磨する研磨機は存在するが
、凸球面に研磨する研磨機はまだ存在せず、新たに凸球
面加工研磨機入しなけnばならない問題点が発生してい
る。In order to polish the tip end surface of the convex spherical surface 2 of such a ferrule 1, a convex spherical surface processing and polishing machine is required to process the convex spherical surface 2 before passing the optical fiber therethrough. However, for general users, although there are polishing machines that polish the end face of an optical fiber to a flat surface, there is no polishing machine that polishes the end face of an optical fiber to a convex spherical surface, and it is necessary to purchase a new convex spherical polishing machine. An unavoidable problem has occurred.
「問題を解決する手段1作用」
本発明は、上記問題点に鑑みてたさnたもので従来の平
坦面用の研磨機でも凸球面フェルールに通さnた光ファ
イバの研磨乞可能とする新規な研磨方法を提供せんとす
るものである。``Means for Solving the Problem 1 Effect'' The present invention has been developed in view of the above-mentioned problems, and provides a novel method that enables polishing of an optical fiber passed through a convex spherical ferrule even with a conventional polishing machine for flat surfaces. The purpose of this paper is to provide a polishing method that is suitable for polishing.
即ち、ポリエステル等の樹脂シートの表面に光ファイバ
及び接着剤に対する研削能力をもつが、セラミックスに
対する研削能力乞もたない酸化アルミニウム、酸化クソ
ームなどの研磨材(砥粒)を接着させて固定砥粒とした
研磨シート(以下ラッピングフィルムという)を研磨円
板上に貼着使用することを前提とし、上記ラッピングフ
ィルムの持つクッション性とセラミックスに対する非研
磨性との相乗作用により、凸球面の最突出部である光フ
ァイバ端面及びこの接着剤乞セラミックスの凸球面tガ
イ1面として同一形状の凸球面に光ファイバ端面を研磨
させることに成功した◇勿論十分な研磨時間を与えたり
、パフ仕上げ乞Tnは光ファイバ端面のみを平坦面とし
たり、凹状面に研磨できる。That is, fixed abrasive grains are formed by bonding abrasive materials (abrasive grains) such as aluminum oxide and oxidized particles, which have the ability to grind optical fibers and adhesives but have poor ability to grind ceramics, to the surface of a resin sheet such as polyester. The most protruding part of the convex spherical surface is created by attaching a polishing sheet (hereinafter referred to as lapping film) on the polishing disk, and the synergistic effect of the cushioning property of the lapping film and the non-abrasive property for ceramics allows the most protruding part of the convex spherical surface to be We succeeded in polishing the optical fiber end face to a convex spherical surface of the same shape as the convex spherical surface of the ceramic adhesive and the convex spherical surface of the ceramic adhesive. Only the end face of the optical fiber can be made flat or polished into a concave surface.
「実施例」
以下、本発明による先端凸球面コネクタの光ファイバ研
磨方法を図面の実施態様で説明する。先ず、第3図の如
く光ファイバFか接着剤6と共にフエルール1の小孔3
に通さnlその光ファイバ先端F′と接着剤6′が凸球
面2の中心突出部に突出付着さnる。接着剤6.6′の
乾燥後、第1図の如く、ホルダ(図示なし)に把持さn
たフェルール1は、研磨円板7上に貼着さnたラッピン
グフィルム10に所定の自重でその下端(凸球面2つ先
端6/、 F/ )χ押圧させる関係とする。上記ラッ
ピングフィルム10は、例えば厚さ数十μ程度〜100
μ程度のポリエステル等の樹脂シート10αの表面に光
ファイバ(石英系、多成分系、プラスチック系など)2
及び接着剤6′に対する研磨能力tもつが(セラミック
ス筒体5に対する研磨能力を持たない研磨材10b(酸
化アルミニウム、酸化クロム、シリコンカーバイドなど
)を砥粒とし、こn乞ポリエステル系などの接着剤によ
って上記樹脂シートに固定砥粒として固着さnている。"Example" Hereinafter, an optical fiber polishing method for a connector with a convex spherical tip according to the present invention will be described with reference to embodiments shown in the drawings. First, as shown in FIG.
The optical fiber tip F' and the adhesive 6' are attached to the central protrusion of the convex spherical surface 2 in a protruding manner. After the adhesive 6.6' has dried, hold it in a holder (not shown) as shown in Figure 1.
The ferrule 1 is pressed against the wrapping film 10 stuck on the polishing disk 7 by a predetermined weight at its lower end (two convex spherical tips 6/, F/). The wrapping film 10 has a thickness of, for example, about several tens of microns to 100 microns.
An optical fiber (quartz-based, multicomponent-based, plastic-based, etc.) 2 is attached to the surface of a resin sheet 10α made of polyester, etc.
The abrasive grains 10b (aluminum oxide, chromium oxide, silicon carbide, etc.), which have the ability to polish the ceramic cylinder 5 but have the ability to polish the adhesive 6', are used as abrasive grains, and the adhesive 6' is made of polyester. The abrasive particles are fixed to the resin sheet as fixed abrasive grains.
上述ラッピングフィルム10は、若干のクッション性を
持っているから、第4図(イ)の如く、フエルールの凸
球面2に押圧さnて窪み、この凸球面2と対称形状とな
る。従って、第1図の叩く、円板7乞軸8(クランク軸
でXの偏心幅をもたせたものかよい)により回転させる
と、第4図(イ)の状態を保持して凸球面2の先端に付
着する接着剤6′と光ファイバの先端F′だけが凸球面
2tガイドとして研磨される。上述研磨は、荒・中・仕
上げの数工程に亘って行わn1且、円板7が偏心及び回
転運動Tるから、フェルール1に対して各方向からラッ
ピングフィルム100表面が凸球面2にガイドさnて走
るごとになり、凸球面の曲率半径と同じに均等で高精度
な研磨乞実行できる。Since the above-mentioned wrapping film 10 has a slight cushioning property, it is pressed against the convex spherical surface 2 of the ferrule and becomes depressed, as shown in FIG. Therefore, when the disk 7 is rotated by the shaft 8 (a crankshaft with an eccentric width of X) shown in FIG. 1, the state shown in FIG. Only the adhesive 6' adhering to the optical fiber and the tip F' of the optical fiber are polished as a convex spherical surface 2t guide. The above-mentioned polishing is performed over several steps of roughing, medium and finishing n1, and since the disc 7 undergoes eccentric and rotational movement T, the surface of the wrapping film 100 is guided by the convex spherical surface 2 from each direction with respect to the ferrule 1. Every time it runs, polishing can be performed with high precision and uniformity equal to the radius of curvature of a convex spherical surface.
次に、変形研磨例を第4図の(ロ)、(ハ)に示す。Next, modified polishing examples are shown in FIGS. 4(b) and 4(c).
先ず、第4図(ロ)は、例えば最終仕上の研磨時間乞十
分にとることにより、光ファイバ6の先端面6′を平坦
面形状としたものである。第4図()・)は最終工程に
バフ乞入れて、光ファイバ6の先端面61χ凹面形状と
したものである。First, in FIG. 4(b), the tip end surface 6' of the optical fiber 6 is made into a flat surface by, for example, taking a sufficient amount of time for final polishing. In FIG. 4() and 4, the tip end surface 61x of the optical fiber 6 is made into a concave shape by buffing in the final step.
上述第4図(イ)〜(ハ)のいずちの形状て、光ファイ
バ先端面ン仕上げるかはユーザニーズによって自由に変
更できるものである。In any of the shapes shown in FIGS. 4(a) to 4(c), the finishing of the optical fiber end surface can be freely changed depending on the user's needs.
「効果」
不発明によるときは、凸球面のフェルールに対してクッ
ション性があり且セラミックスに対する非研磨性のラッ
ピングフィルムの適時研磨による方法としたから、普通
の平坦面研磨だけしか出来ない研磨機において、凸球面
の先端に付着する接着剤及び光ファイバの先端面の研磨
か可能であるばかりか、非研磨層の凸球面セラミックス
がガイドとなってセラミックスの凸球面の曲率半径と同
一に均等で高精度な研磨が行える効果がある。更に、必
要に応じて光ファイバ端面のみを平坦面とすることも可
能である。"Effect" In the case of non-invention, since the method was based on timely polishing of a lapping film that has cushioning properties for the convex spherical ferrule and is non-abrasive for ceramics, it is possible to use a polishing machine that can only polish ordinary flat surfaces. Not only is it possible to polish the adhesive attached to the tip of the convex spherical surface and the tip surface of the optical fiber, but the convex spherical ceramic of the non-polishing layer acts as a guide, and the radius of curvature is the same as that of the convex spherical surface of the ceramic. This has the effect of allowing precise polishing. Furthermore, if necessary, it is also possible to make only the end face of the optical fiber a flat surface.
第1図は本発明の実施方法を示すフェルール及び研磨円
板の側面図、第2図は凸球面フェルールの側面図と拡大
断面図、第3図は凸球面フェルールに通した光ファイバ
と接着剤との関係を示す研磨前の断面図、第4図は光フ
ァイバの研磨作用及び各研磨形状を示す断面図である。
1・・・フエルール、2・・・凸球面、3・・・小孔、
4・・昏ステンレス筒体、5・・骨セラミックス筒体、
6.6′・・・接着剤、F、F’・・・光ファイバ、7
・・・研磨円板、10 ”’ラッピングフィルム(研磨
シート)、100・・・コネクタ。Figure 1 is a side view of a ferrule and polishing disk showing the method of implementing the present invention, Figure 2 is a side view and enlarged sectional view of a convex spherical ferrule, and Figure 3 is an optical fiber and adhesive passed through the convex spherical ferrule. FIG. 4 is a sectional view before polishing showing the relationship between the optical fiber and the polishing shape. 1...Ferrule, 2...Convex spherical surface, 3...Small hole,
4. Stainless steel cylinder body, 5. Bone ceramic cylinder body,
6.6'...Adhesive, F, F'...Optical fiber, 7
... Polishing disc, 10'' wrapping film (polishing sheet), 100... Connector.
Claims (1)
剤に対して、クッション性があり且フエルールの凸球面
状セラミックスに対する非研磨性のラッピングフィルム
で適時間研磨することを特徴とした先端凸球面コネクタ
の光ファイバ研磨方法。A connector with a convex spherical tip that has cushioning properties for the optical fiber and adhesive passed through a ferrule with a convex spherical tip, and which is characterized by polishing the convex spherical ceramic of the ferrule for an appropriate amount of time with a non-abrasive wrapping film. optical fiber polishing method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15759985A JPS6219365A (en) | 1985-07-17 | 1985-07-17 | Optical fiber polishing of convex spherical tip connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15759985A JPS6219365A (en) | 1985-07-17 | 1985-07-17 | Optical fiber polishing of convex spherical tip connector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6219365A true JPS6219365A (en) | 1987-01-28 |
Family
ID=15653234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15759985A Pending JPS6219365A (en) | 1985-07-17 | 1985-07-17 | Optical fiber polishing of convex spherical tip connector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6219365A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61198577A (en) * | 1985-02-26 | 1986-09-02 | Yuasa Battery Co Ltd | Charging method for square enclosed lead storage battery |
JPS6389260A (en) * | 1986-09-30 | 1988-04-20 | Kyocera Corp | Optical fiber end face polishing method |
JPS63205618A (en) * | 1987-02-23 | 1988-08-25 | Nippon Telegr & Teleph Corp <Ntt> | Method for polishing optical fiber connector |
US5107627A (en) * | 1990-09-04 | 1992-04-28 | At&T Bell Laboratories | Methods of and apparatus for polishing an article |
US5185966A (en) * | 1990-09-04 | 1993-02-16 | At&T Bell Laboratories | Methods of and apparatus for polishing an article |
US5458531A (en) * | 1994-02-23 | 1995-10-17 | Emit Seikoco., Ltd. | Polisher |
CN112720081A (en) * | 2020-12-23 | 2021-04-30 | 西安和其光电科技股份有限公司 | Method for polishing end face of fluorescent optical fiber |
-
1985
- 1985-07-17 JP JP15759985A patent/JPS6219365A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61198577A (en) * | 1985-02-26 | 1986-09-02 | Yuasa Battery Co Ltd | Charging method for square enclosed lead storage battery |
JPH0544783B2 (en) * | 1985-02-26 | 1993-07-07 | Yuasa Battery Co Ltd | |
JPS6389260A (en) * | 1986-09-30 | 1988-04-20 | Kyocera Corp | Optical fiber end face polishing method |
JPS63205618A (en) * | 1987-02-23 | 1988-08-25 | Nippon Telegr & Teleph Corp <Ntt> | Method for polishing optical fiber connector |
JPH0565847B2 (en) * | 1987-02-23 | 1993-09-20 | Nippon Telegraph & Telephone | |
US5107627A (en) * | 1990-09-04 | 1992-04-28 | At&T Bell Laboratories | Methods of and apparatus for polishing an article |
US5185966A (en) * | 1990-09-04 | 1993-02-16 | At&T Bell Laboratories | Methods of and apparatus for polishing an article |
US5458531A (en) * | 1994-02-23 | 1995-10-17 | Emit Seikoco., Ltd. | Polisher |
EP0678359A1 (en) * | 1994-02-23 | 1995-10-25 | EIMIT SEIKO CO., Ltd. | Polisher |
CN112720081A (en) * | 2020-12-23 | 2021-04-30 | 西安和其光电科技股份有限公司 | Method for polishing end face of fluorescent optical fiber |
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