JPH01179110A - End face polishing method for optical connector ferrule - Google Patents

End face polishing method for optical connector ferrule

Info

Publication number
JPH01179110A
JPH01179110A JP280088A JP280088A JPH01179110A JP H01179110 A JPH01179110 A JP H01179110A JP 280088 A JP280088 A JP 280088A JP 280088 A JP280088 A JP 280088A JP H01179110 A JPH01179110 A JP H01179110A
Authority
JP
Japan
Prior art keywords
polishing
pin
optical connector
ferrule
connector 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
Application number
JP280088A
Other languages
Japanese (ja)
Inventor
Takeo Komiya
健雄 小宮
Toshiaki Kakii
俊昭 柿井
Shuzo Suzuki
鈴木 修三
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP280088A priority Critical patent/JPH01179110A/en
Publication of JPH01179110A publication Critical patent/JPH01179110A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/22Single-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
    • B24B19/226Single-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)

Abstract

PURPOSE:To reduce the connection loss of an optical connector by inserting a polishing shaft determining pin into a coupling pin hole of an optical connector ferrule, executing the polishing positioning by this pin and polishing the end face. CONSTITUTION:A polishing shaft determining pin 3 whose diameter is almost the same as that of a coupling pin which is coupled into a coupling pin hole 5 of an optical connector ferrule 1 at the time of coupling is installed in a polishing arm 4, and the pin 3 and a polishing machine are adjusted so as to become within 90+ or -0.2. In this state, the coupling pin hole 5 of the optical connector ferrule 1 is inserted into said polishing shaft determining pin 3, held from below by a ferrule holder 2 so that the ferrule 1 does not drop down, and coupled to the polishing arm 4 by a pin 7. In that case, there is looseness in the pin 7 and the hole inserted therethrough, and also, the ferrule holder 2 is floating against the polishing arm 4 by a spring 6, by which it is not obstructed that the ferrule 1 follows the polishing shaft determining pin 3. In such a way, the squareness of the coupling pin and the end face becomes high accuracy.

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位置決め固定し、結合ピンを用い
て光ファイバの接続を実現するところの光コネクタフェ
ルールの端面研磨方法に関するものである。
[Detailed Description of the Invention] - (Industrial Application Field) The present invention relates to a method for polishing the end face of an optical connector ferrule, which positions and fixes an optical fiber and connects the optical fiber using a coupling pin. .

(従来技術) 光ファイバの接続を実現するところの光コネクタにおい
ては、光コネクタ7エルールに光ファイバを固定した後
に、その端面と光ファイバの位置合せを行なうためと、
光ファイバの伝搬光が光コネクタフェルールの端面の接
合部で生じる多重反射を減少させるために、端面を研磨
することが通常行われている。
(Prior Art) In an optical connector that realizes the connection of optical fibers, after the optical fiber is fixed to the optical connector 7 errule, the end face and the optical fiber are aligned.
In order to reduce multiple reflections of light propagating through an optical fiber that occur at the joint between the end faces of an optical connector ferrule, the end faces are usually polished.

上記の研磨によって光コネクタフェルールには新たな端
面が形成されることになるが、この新たな面の傾きが大
きいと端面での多重反射が増加したり、端面基準に結合
することにより光フアイバ同志の角度ずれが生じて接続
損失が増加したりする。
A new end face will be formed on the optical connector ferrule by the above polishing, but if the slope of this new face is large, multiple reflections at the end face will increase, and if the optical fibers are connected to the end face reference, This may cause an angle shift and increase connection loss.

第9図は従来の端面研磨方法における研磨チャックの一
例の説明図で、(31)はチャックアーム、かして、チ
ャックアーム(31)に形成したtiom−あるいは面
(316L)と(3鴎)を基準面とし、この基準面と研
磨盤の直角度が生じるように製作及び調整を行ない、こ
の部分に光コネクタフェルールを位置決めし、押えプレ
ート(32)で押え、ネジ(33)で締付けて、光コネ
クタフェルールの端面の研磨を行なっていた。
FIG. 9 is an explanatory diagram of an example of a polishing chuck in a conventional end face polishing method, in which (31) is a chuck arm, and the tiom- or surface (316L) and (3 cylindrical) formed on the chuck arm (31) are shown. Use this as a reference plane, manufacture and adjust it so that there is a perpendicularity between this reference plane and the polishing plate, position the optical connector ferrule in this area, hold it down with the holding plate (32), and tighten it with the screw (33). The end face of an optical connector ferrule was being polished.

(解決しようとする問題点) 光コネクタフェルールの結合の際の位置決めの手段は、
次の2つに大きく分れる。即ち、その1つは第7図(イ
)及び(噂に示すように光コネクタフェルールの外形を
基準として位置決めする方法であり、もう1つは、第8
図(イ)及び(ロ)に示すように、光コネクタフェルー
ルに位置決め用の複数の結合ピンの穴が形成されており
、この穴に結合ピンを挿入することによって位置決めす
る方法である。
(Problem to be solved) The means of positioning when connecting optical connector ferrules is as follows:
It can be broadly divided into the following two types. That is, one of them is a method of positioning based on the outer shape of the optical connector ferrule as shown in FIG.
As shown in Figures (a) and (b), holes for a plurality of coupling pins for positioning are formed in the optical connector ferrule, and positioning is performed by inserting the coupling pins into these holes.

第7図0)は外形基準の単心光コネクタフェルールの説
明図で、(11)はフェルール本体、(12)はフェル
ール本体(11)内に位置決め固定された光ファイバ、
(13)はフェルール本体(11)を挿入し結合を実現
する割りスリーブである。
Fig. 7 0) is an explanatory diagram of a single-fiber optical connector ferrule based on the external shape, where (11) is the ferrule body, (12) is the optical fiber positioned and fixed in the ferrule body (11),
(13) is a split sleeve into which the ferrule body (11) is inserted to achieve the connection.

同図(すは外形基準の多心光コネクタフェルールの説明
図でs (14)は内部に複数の光ファイバ(12)を
位置決め固定した多心光コネクタフェルール、05)は
多心光コネクタフェルール(14)の外側に位置する位
置決め用プレートである。
In the same figure (s) is an explanatory diagram of a multi-fiber optical connector ferrule based on external dimensions, s (14) is a multi-fiber optical connector ferrule with multiple optical fibers (12) positioned and fixed inside, and 05 is a multi-fiber optical connector ferrule ( 14) is a positioning plate located outside.

第8図(イ)は結合ピン方式の多心光コネクタフェルー
ルの一例の説明図で、フェルール本体(21)内に光フ
アイバガイド穴(22)及び結合ピン用の結合ピン穴(
23)が形成されており、上記結合ピン穴(23)に結
合ピン(24)を挿入することにより、位置決め結合が
実現される。
FIG. 8(a) is an explanatory diagram of an example of a multi-fiber optical connector ferrule of the coupling pin type, in which an optical fiber guide hole (22) and a coupling pin hole (
23) is formed, and a positioning connection is realized by inserting a connection pin (24) into the connection pin hole (23).

同図(ロ)は結合ピン方式の多心光コネクタフェルール
の他の例の説明図である。光コネクタフェルール(25
)は、上面に光フアイバガイド溝(26)及び結合ピン
ガイド溝(2))を形成したガイド基板(256L)上
に平板(256)を接合して形成されており、上記結合
ピンガイド溝(2))に結合ピン(24)を挿入するこ
とにより、位置決め結合が実現される。
FIG. 3B is an explanatory diagram of another example of the coupling pin type multi-core optical connector ferrule. Optical connector ferrule (25
) is formed by bonding a flat plate (256) to a guide substrate (256L) on which an optical fiber guide groove (26) and a coupling pin guide groove (2)) are formed, and the coupling pin guide groove (2)) By inserting the coupling pin (24) in 2)), positioning coupling is realized.

上述した光コネクタフェルールのうち、第7図(イ)及
び(ロ)に示す外形基準の光コネクタフェルールは、第
9図に示す従来の研磨チャックを用いることにより、正
確に外周面と端面の直角度が形成される。
Among the optical connector ferrules mentioned above, the optical connector ferrules based on the external shape shown in FIGS. An angle is formed.

しかし、第8図(イ)及び(ロ)に示す結合ピン方式の
光コネクタフェルールにおいては、結合ピンを基準に位
置決め結合が実現されるため、外周面と端面の直角度と
いうより、正確には結合ピン用の穴内面又は結合ピンを
セットした時の結合ピン外周面と端面との直角度が重要
であり、これを第9図に示す従来の研磨チャックを用い
て実現することは困難であった。
However, in the coupling pin type optical connector ferrules shown in Figures 8 (a) and (b), the positioning and coupling are realized based on the coupling pin, so it is not precisely the perpendicularity between the outer peripheral surface and the end surface. The perpendicularity between the inner surface of the hole for the coupling pin or the outer peripheral surface of the coupling pin and the end surface when the coupling pin is set is important, and it is difficult to achieve this using the conventional polishing chuck shown in Fig. 9. Ta.

通常、光コネクタフェルールの外周面と結合ピン用の穴
内面は略々平行に形成されている。しかし、第8図(イ
)のようなプラスチック成形による光コネクタフェルー
ルの場合には、外周面を成形する金型部品と結合ピン穴
を形成する部品とは全く別部品であり、特に後者の部品
は製品の取出しのために金型内でスライド出来る可動部
品であることが多く、このため、必ずしも外周面と結合
ピン穴の内面が平行に成形されるとは限らない。
Usually, the outer peripheral surface of the optical connector ferrule and the inner surface of the hole for the coupling pin are formed substantially parallel to each other. However, in the case of an optical connector ferrule made of plastic molding as shown in Figure 8 (a), the mold part that molds the outer peripheral surface and the part that forms the coupling pin hole are completely different parts, especially the latter part. is often a movable part that can slide within the mold to take out the product, and therefore the outer peripheral surface and the inner surface of the coupling pin hole are not necessarily molded parallel to each other.

又第8図(ロ)のような、硬脆材料を切削加工して形成
する光コネクタフェルールの場合には、ガイド基板上に
V溝加工するブレード(V型)と外周面を加工するブレ
ード(U型)とは別個のものであり、直角度を出すこと
は困難である。さらにプラスチック等の弾性材料の場合
には端面の若干の傾きを接合時に吸収出来るが、シリコ
ン、セラミック等の硬脆材料では変形量が微小なため、
端面の少しの傾きでも影響を受は易い。
In addition, in the case of an optical connector ferrule formed by cutting a hard and brittle material as shown in FIG. It is different from the U-shape, and it is difficult to obtain a right angle. Furthermore, in the case of elastic materials such as plastics, slight inclination of the end faces can be absorbed during bonding, but with hard and brittle materials such as silicon and ceramics, the amount of deformation is minute, so
Even a slight inclination of the end face is easily affected.

(問題点を解決するための手段) 本発明は結合ピン方式の光コネクタフェルールの研四方
法の上述の問題点を解消した端面研磨方法を提供するも
ので、その特徴は、光コネクタフェルールの結合ピン穴
に研磨軸決め用ピンを挿入し、該ピンにより研1位置決
めを行ない端面を研酵することにあるる 第1図は本発明の端面研磨方法を実現する研磨アームの
基本概観図であり、第2図は第1図のX−Xにおける詳
細な断面図である。
(Means for Solving the Problems) The present invention provides an end face polishing method that solves the above-mentioned problems of the method for polishing optical connector ferrules using a coupling pin method. A polishing axis-setting pin is inserted into the pin hole, and the polishing 1 position is determined by the pin to polish the end surface. FIG. 1 is a basic overview of a polishing arm that realizes the end surface polishing method of the present invention. , FIG. 2 is a detailed sectional view taken along line XX in FIG. 1.

本発明の端面研磨方法の基本的な考え方は、光コネクタ
フェルール(1)の先端部のガイド穴(2^)をもった
フェルール押え(2)と、研磨軸決め用ピン(3)を装
着した研磨アーム(4)を用い、上記研磨軸決め用ピン
(3)を光コネクタフェルール(1)の結合ピン穴(5
)に挿入して研磨の位置決めを行ない、光コネクタフェ
ルール(1)の端面研磨するものである。
The basic concept of the end face polishing method of the present invention is that a ferrule holder (2) having a guide hole (2^) at the tip of an optical connector ferrule (1) and a pin for polishing axis (3) are attached. Using the polishing arm (4), insert the polishing pin (3) into the coupling pin hole (5) of the optical connector ferrule (1).
) to perform polishing positioning and polish the end face of the optical connector ferrule (1).

詳細は第2図に示すように、研磨アーム(4)には結合
時に光コネクタフェルール(1)の結合ピン穴(5)に
挿入する結合ピンと略々同じ径の研四軸決め用ピン(3
)が装置されており、上記ピン(3)と研磨盤は90±
0.2°以内になるように調整されている。
For details, as shown in Figure 2, the polishing arm (4) has a polishing pin (3) with approximately the same diameter as the coupling pin inserted into the coupling pin hole (5) of the optical connector ferrule (1) during coupling.
) is installed, and the pin (3) and polishing disk are 90±
It is adjusted to within 0.2°.

上記研磨軸決め用ピン(3)に光コネクタフェルール(
1)の結合ピン穴(5)を挿入し、下からフェルール押
え(2)でフェルール(1)が落下しないよう押え、ピ
ン(7)で研磨アーム(4)と結合する。その際、ピン
(7)とそれを挿通する穴にはガタがあり、又スプリン
グ(6)によってフェルール押え(2)は研磨アーム(
4)に対してフローティングしており、これらによりフ
ェルール(1)が研磨軸決め用ピン(3)に習うのを妨
げない構造となっている。なお、光コネクタフェルール
(1)の上面には研磨軸決め用ピン(3)と略々直交す
るツバ(8)が設けられている。
The optical connector ferrule (
Insert the connecting pin hole (5) of 1), press the ferrule (1) from below with the ferrule holder (2) so that it does not fall, and connect it to the polishing arm (4) with the pin (7). At that time, there is play in the pin (7) and the hole through which it is inserted, and the ferrule holder (2) is moved by the spring (6) to the polishing arm (
4), thereby creating a structure that does not prevent the ferrule (1) from imitating the polishing pin (3). Incidentally, a collar (8) is provided on the upper surface of the optical connector ferrule (1) and is substantially orthogonal to the polishing axis fixing pin (3).

上述したような研磨アームの構成により、研磨軸決め用
ピン(3)基準に、光コネクタフェルール(1)端面の
直角度が形成されるようになっている。
The configuration of the polishing arm as described above allows the end face of the optical connector ferrule (1) to be perpendicular to the polishing axis pin (3).

第3図(イ)〜(ニ)は研磨軸決め用ピン(3)の各種
の断面形状である。
FIGS. 3(A) to 3(D) show various cross-sectional shapes of the polishing shafting pin (3).

光ファイバを位置決め固定した後の光コネクタフェルー
ル端面の研磨には、セラミック、鋼等の先端テーパ付き
ピン(イ)あるいは先端部直角のピン(ロ)を用い、か
つ第4図に)のように、ピン結合穴(5)の途中まで入
れて使用し、ピンの摩耗等を防止するのが望ましい。
To polish the end face of the optical connector ferrule after positioning and fixing the optical fiber, use a pin with a tapered tip (a) made of ceramic or steel, or a pin with a right-angled tip (b), as shown in Figure 4). It is desirable to insert the pin partway into the pin coupling hole (5) to prevent pin wear.

一方、光フアイバ取付は前の光コネクタフェルールの形
状偏心を正確に測定する際の測定前研磨においては、結
合ピン穴(5)はその性格から、光フアイバガイド穴の
偏心を計算する座標系の算出基準となるので、対象とす
る光コネクタフェルール0)端面部材と同一又は略々等
しい硬度、縦弾性係数を先端部(34)に存する第3図
(ハ)の如き複合材料のピン、又は全体が上記の材料で
構成された同図に)の如きピン(3)を使用し、かつ第
4図(ロ)のように、その先端部を光コネクタフェルー
ル(1)の端面と揃え、同時に研磨して穴の縁ブレの生
じるのを防ぐようにするのが好ましい。
On the other hand, during pre-measurement polishing to accurately measure the shape eccentricity of the previous optical connector ferrule when installing the optical fiber, due to its nature, the coupling pin hole (5) is used in the coordinate system for calculating the eccentricity of the optical fiber guide hole. Since this is the calculation standard, the target optical connector ferrule 0) A pin made of a composite material as shown in FIG. Use the pin (3) shown in the same figure made of the above-mentioned material, align its tip with the end face of the optical connector ferrule (1), and polish at the same time as shown in Figure 4 (b). It is preferable to prevent the edge of the hole from wobbling.

(実施例) 第2図に示した研磨アームを作成し評価を行った。(Example) The polishing arm shown in FIG. 2 was created and evaluated.

n = 100のサンプルを研磨し、結合ピンとフェル
ール端面の角度を測定し、90″からのずれ量を求めた
結果は第5図に示す通りである。従来の方式では平均0
.38’であったのが、本発明の研磨方法では平均0.
1G”と極めて良好な結果が得られた。
The results of polishing n = 100 samples, measuring the angle between the coupling pin and the ferrule end face, and determining the amount of deviation from 90" are shown in Figure 5. In the conventional method, the average was 0.
.. 38', but with the polishing method of the present invention, the average was 0.
An extremely good result of 1G'' was obtained.

又従来の研酵方法で研磨して接続損失を測定したサンプ
ルn=20について、本発明の方法で再研磨したところ
、平均損失が従来法の0.4dbから0.3!dbへと
約0.1 d bの改善がみられた。なお、上記はプラ
スチック多心フェルールと3Mファイバを使用した。さ
らに、光ファイバを取付は前の光コネクタフェルールの
形状測定重研磨に本発明の方法を適用した結果は、第6
図に示す通りである。これは、同一サンプルを100回
繰返して透過光式の自動焦点式自動測定機で測定した際
の、結合ピン穴の穴径のバラツキの結果である。従来の
研磨方法に比して本発明の方法を使用することにより、
大幅にバラツキが小さくなっており、特に本発明の(B
)では従来の約1/3まで減少している。
Furthermore, when we re-polished samples n = 20 using the conventional polishing method and measured splice loss using the method of the present invention, the average loss decreased from 0.4 db in the conventional method to 0.3! There was an improvement of about 0.1 db to db. In the above example, a plastic multi-core ferrule and 3M fiber were used. Furthermore, the results of applying the method of the present invention to shape measurement and heavy polishing of optical connector ferrules before installing optical fibers are as follows.
As shown in the figure. This is the result of variations in the hole diameters of the coupling pin holes when the same sample was measured 100 times using a transmitted light automatic focusing automatic measuring machine. By using the method of the present invention compared to conventional polishing methods,
The variation is significantly reduced, especially in (B) of the present invention.
), it has been reduced to about 1/3 of the conventional value.

(発明の効果) 以上説明したように、本発明の端面研磨方法によれば、
光コネクタフェルールの結合ピン穴と端面の直角度、ひ
いては、結合ピンと端面の直角度を高精度化し、光コネ
クタの接続損失の低減及び端面での多重反射を減少させ
る効果がある。
(Effects of the Invention) As explained above, according to the end face polishing method of the present invention,
This has the effect of increasing the precision of the perpendicularity between the coupling pin hole and the end face of the optical connector ferrule, and in turn, the perpendicularity between the coupling pin and the end face, reducing connection loss of the optical connector and multiple reflections at the end face.

又この研磨方法を光コネクタフェルールの形状−1定前
の研磨に適用することにより、測定の高精度が実現する
ことができる。
Furthermore, by applying this polishing method to the shape-1 pre-polishing of the optical connector ferrule, high measurement accuracy can be achieved.

光コネクタの高精度化及び低損失化が進み、よ゛り一居
の進展が要望される時に、光コネクタフェルールの高精
度化のみならず、フェルールの正確な評価技術及び光フ
ァイバの取付は技術が重要となってきている現在、本発
明は極めて効果的である。
At a time when optical connectors are becoming more precise and have lower loss, and there is a demand for further progress, it is important not only to improve the precision of optical connector ferrules, but also to accurately evaluate ferrules and attach optical fibers. The present invention is extremely effective at a time when it is becoming more important.

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

第1図は本発明の光コネクタフェルールの端面研磨方法
を実現する研磨アームの基本概観図、第2図は第1図の
X−Xにおける詳細な断面図である。 第3図(イ)〜に)はいずれも本発明の端面研磨方法ル
のピン結合穴の関係図である。 第5図は結合ピンと光コネクタフェルール端面の角度の
精度特性図、第6図は結合ピン穴の繰返し測定バラツキ
の特性図である。 第7図(イ)及び(c’lは外形基準式の光コネクタフ
ェルール例の説明図、第8図(イ)及びに)は結合ピン
位置決め方式の光コネクタフェルール例の説明図である
。 第8図は従来の端面研磨チャックの一例の説明図である
。 1・・・光コネクタフェルール、2・・・フェルール押
え、3・・・研磨軸決め用ピン、4・・・研磨アーム、
5・・・結合ピン穴、6・・・スプリング、7・・・ピ
ン、8・・・ツバ。 2J 1 図 埠2 図 算7図 算8図 洟 9 図
FIG. 1 is a basic outline view of a polishing arm that implements the optical connector ferrule end face polishing method of the present invention, and FIG. 2 is a detailed sectional view taken along line XX in FIG. 1. 3(a) to 3) are relationship diagrams of pin coupling holes in the end face polishing method of the present invention. FIG. 5 is a characteristic diagram of the accuracy of the angle between the coupling pin and the end face of the optical connector ferrule, and FIG. 6 is a characteristic diagram of the variation in repeated measurement of the coupling pin hole. FIGS. 7A and 7C are explanatory diagrams of an example of an optical connector ferrule of the outer shape reference type, and FIGS. 8A and 8C are explanatory diagrams of an example of an optical connector ferrule of the coupling pin positioning method. FIG. 8 is an explanatory diagram of an example of a conventional end face polishing chuck. 1... Optical connector ferrule, 2... Ferrule holder, 3... Pin for polishing axis, 4... Polishing arm,
5...Joining pin hole, 6...Spring, 7...Pin, 8...Brim. 2J 1 Zubu 2 Illustration 7 Illustration 8 Illustration 9 Illustration

Claims (2)

【特許請求の範囲】[Claims] (1)結合ピンを用いて光ファイバの接続を実現する光
コネクタフェルールの端面研磨方法において、光コネク
タフェルールの結合ピン穴に研磨軸決め用ピンを挿入し
、該ピンにより研磨位置決めを行ない端面を研磨するこ
とを特徴とする光コネクタフェルールの端面研磨方法。
(1) In a method for polishing the end face of an optical connector ferrule that realizes optical fiber connection using a coupling pin, a pin for polishing axis is inserted into the coupling pin hole of the optical connector ferrule, and the pin positions the polishing position to polish the end face. A method for polishing an end face of an optical connector ferrule, which is characterized by polishing.
(2)研磨軸決め用ピンが複数の材料から構成されてお
り、先端部が研磨対象となる光コネクタフェルールの端
面部材と同一又はほぼ等しい硬度及び縦弾性係数を有す
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
クタフェルールの研磨方法。
(2) A patent claim characterized in that the pin for polishing is made of a plurality of materials, and the tip portion has the same or almost the same hardness and longitudinal elastic modulus as the end face member of the optical connector ferrule to be polished. A method for polishing an optical connector ferrule according to item 1.
JP280088A 1988-01-08 1988-01-08 End face polishing method for optical connector ferrule Pending JPH01179110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP280088A JPH01179110A (en) 1988-01-08 1988-01-08 End face polishing method for optical connector ferrule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP280088A JPH01179110A (en) 1988-01-08 1988-01-08 End face polishing method for optical connector ferrule

Publications (1)

Publication Number Publication Date
JPH01179110A true JPH01179110A (en) 1989-07-17

Family

ID=11539449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP280088A Pending JPH01179110A (en) 1988-01-08 1988-01-08 End face polishing method for optical connector ferrule

Country Status (1)

Country Link
JP (1) JPH01179110A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109011A (en) * 1982-12-14 1984-06-23 Keru Kk Mold for casting ferrule of optical connector
JPS6177811A (en) * 1984-09-26 1986-04-21 Asahi Seiki Kogyo Kk Ferrule for optical connector
JPS61192460A (en) * 1985-02-20 1986-08-27 Furukawa Electric Co Ltd:The Grinding method for end face of optical connector core into convex spherical surface

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109011A (en) * 1982-12-14 1984-06-23 Keru Kk Mold for casting ferrule of optical connector
JPS6177811A (en) * 1984-09-26 1986-04-21 Asahi Seiki Kogyo Kk Ferrule for optical connector
JPS61192460A (en) * 1985-02-20 1986-08-27 Furukawa Electric Co Ltd:The Grinding method for end face of optical connector core into convex spherical surface

Similar Documents

Publication Publication Date Title
US4950048A (en) Optical connector ferrule
DE69523768T2 (en) SYSTEM FOR ALIGNING AND FASTENING OPTICAL FIBERS WITH OPTICAL WAVE GUIDES
JP3197482B2 (en) Manufacturing method of ferrule for optical fiber connector
JPH07311314A (en) Method for polishing tip of optical fiber
JPH1039166A (en) Optical device having oblique connecting end face
JPS63316811A (en) Manufacture of optical connector
JPH01179110A (en) End face polishing method for optical connector ferrule
JPH0915453A (en) Optical connector
JP2003220545A (en) End face grinding apparatus and end face grinding method
JP3096870B2 (en) Angle measurement method of optical fiber insertion hole of multi-core ferrule
JPS63178203A (en) Terminal structure for optical connector ferrule
JP4140276B2 (en) Manufacturing method of optical connector
JPS62247308A (en) Multicore optical connector ferrule and its manufacture
JP2003004979A (en) Guide pin
JPS62131210A (en) Production of optical connector ferrule
JP3506108B2 (en) Optical connector eccentricity measuring device and eccentricity measuring method
JPH02281210A (en) Optical collimator
JPS62107955A (en) Working method for optical connector plug
JPH09184942A (en) Multi-fiber optical connector
JPS6161032A (en) Measuring device for characteristic of optical fiber
JPH04116608A (en) Optical connector
JPS6118484Y2 (en)
JPS6318307A (en) Production of connector plug for optical fiber
JPH03296006A (en) Connector for optical cable
JPS6320966Y2 (en)