JPH0786575B2 - Optical fiber coupling member - Google Patents

Optical fiber coupling member

Info

Publication number
JPH0786575B2
JPH0786575B2 JP876187A JP876187A JPH0786575B2 JP H0786575 B2 JPH0786575 B2 JP H0786575B2 JP 876187 A JP876187 A JP 876187A JP 876187 A JP876187 A JP 876187A JP H0786575 B2 JPH0786575 B2 JP H0786575B2
Authority
JP
Japan
Prior art keywords
optical fiber
groove
adhesive
coupling member
substance layer
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.)
Expired - Lifetime
Application number
JP876187A
Other languages
Japanese (ja)
Other versions
JPS63175809A (en
Inventor
和人 斉藤
俊昭 柿井
修三 鈴木
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 JP876187A priority Critical patent/JPH0786575B2/en
Priority to DE3751810T priority patent/DE3751810T2/en
Priority to EP87116804A priority patent/EP0271721B1/en
Priority to EP91121375A priority patent/EP0482673B1/en
Priority to DE3752078T priority patent/DE3752078T2/en
Priority to EP90116010A priority patent/EP0405620B1/en
Priority to DE87116804T priority patent/DE3786900T2/en
Priority to CA000551847A priority patent/CA1302758C/en
Priority to US07/120,521 priority patent/US4830456A/en
Priority to KR870012843A priority patent/KR880006559A/en
Priority to AU81263/87A priority patent/AU601240B2/en
Publication of JPS63175809A publication Critical patent/JPS63175809A/en
Publication of JPH0786575B2 publication Critical patent/JPH0786575B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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、光ファイバ相互の結合に用い
る光ファイバ結合部材に関するものである。
Description: TECHNICAL FIELD The present invention relates to an optical fiber coupling member used for coupling optical fibers to each other in optical communication.

(従来技術) 第1図は光ファイバガイド溝を形成した溝基板とプレー
トが接着性物質層を介して接合されて成る光ファイバ結
合部材の一例の横断面図である。図に示すように、上面
に光ファイバガイド溝(4)及びガイドピン溝(5)を
形成した溝基板(2)上に、接着物質層(3)を下面に
設けたプレート(1)を重ね合せ、上記接着物質層
(3)を介してプレート(1)と溝基板(2)が接合さ
れて光ファイバガイド穴及びガイドピン穴が形成されて
いる。
(Prior Art) FIG. 1 is a cross-sectional view of an example of an optical fiber coupling member in which a grooved substrate having an optical fiber guide groove and a plate are bonded via an adhesive material layer. As shown in the figure, a plate (1) having an adhesive substance layer (3) provided on the lower surface is superposed on a groove substrate (2) having an optical fiber guide groove (4) and a guide pin groove (5) formed on the upper surface. In addition, the plate (1) and the groove substrate (2) are bonded to each other through the adhesive material layer (3) to form an optical fiber guide hole and a guide pin hole.

(解決しようとする問題点) 上述のような光ファイバ結合部材は第5図に示すよう
に、光ファイバガイド溝(4)の上部プレート(1)に
も接着物質層(3)が存在し、しかもこの部分の接着物
質層(3)の厚さ(t3)は、一般にプレート(1)と溝
基板(2)に挟まれた接着物質層がはみ出した分、この
領域の接着物質層の厚さ(t1)より大きいという傾向が
ある。
(Problems to be Solved) In the above-mentioned optical fiber coupling member, as shown in FIG. 5, the adhesive material layer (3) is present in the upper plate (1) of the optical fiber guide groove (4), Moreover, the thickness (t 3 ) of the adhesive substance layer (3) in this portion is generally the thickness of the adhesive substance layer in this region, which corresponds to the protrusion of the adhesive substance layer sandwiched between the plate (1) and the groove substrate (2). It tends to be greater than (t 1 ).

しかるに、本来光ファイバガイド穴に挿入される光ファ
イバ(A)は、第6図に示すように光ファイバガイド溝
(4)の3点(a)と接触することにより位置決めされ
る。又プレート(1)と溝基板(2)との間に接着物質
層(3)が介在している場合でも、第7図に示すように
接着物質層(3)の厚さが一様であれば、第6図と同じ
径の光ファイバ(A)が光ファイバガイド溝(4)の3
点で接触し位置決めされる。
However, the optical fiber (A) originally inserted into the optical fiber guide hole is positioned by contacting the three points (a) of the optical fiber guide groove (4) as shown in FIG. Even when the adhesive substance layer (3) is interposed between the plate (1) and the groove substrate (2), the adhesive substance layer (3) may have a uniform thickness as shown in FIG. For example, the optical fiber (A) having the same diameter as that of FIG.
Positioned by touching at points.

しかし、前記第5図に示す状態の光ファイバ結合部材で
は、プレート(1)と溝基板(2)との接合の際、若干
加圧しながら接着物質層(3)を硬化させているため、
両者の間に介在する接着物質層(3)が光ファイバガイ
ド溝(4)の方向へはみ出し、第5図のように溝(4)
上部の接着物質層(3)の厚さ(t3)は他の領域の厚さ
(t1)よりも厚くなり、所定の外径の光ファイバが溝
(4)内に挿入出来なくなるという問題点があった。
However, in the optical fiber coupling member in the state shown in FIG. 5, when the plate (1) and the groove substrate (2) are bonded together, the adhesive substance layer (3) is cured while applying a slight pressure.
The adhesive material layer (3) interposed between the two protrudes in the direction of the optical fiber guide groove (4), and as shown in FIG. 5, the groove (4).
The thickness (t 3 ) of the adhesive material layer (3) on the upper side becomes thicker than the thickness (t 1 ) of the other region, and the optical fiber having a predetermined outer diameter cannot be inserted into the groove (4). There was a point.

さらに、光ファイバガイド溝(4)上にある接着物質層
はゴミ等を吸収、吸着し易く、溝(4)内にゴミによる
凹凸を作ってしまう。このゴミの付着は、光ファイバの
溝(4)内への挿入性を悪化することがしばしばあり、
又溝(4)の断面形状の測定に際しても、ゴミの存在に
よって穴の輪郭が鮮明にならない等の問題点が存在す
る。
Furthermore, the adhesive substance layer on the optical fiber guide groove (4) easily absorbs and adsorbs dust and the like, and thus creates irregularities due to dust in the groove (4). This dust adherence often deteriorates the insertability into the groove (4) of the optical fiber,
Also, when measuring the cross-sectional shape of the groove (4), there is a problem that the outline of the hole is not clear due to the presence of dust.

(問題点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ファイバ結合部材を
提供するもので、その特徴は、溝基板とプレートの間に
介在している接着性物質層の厚さに対して、光ファイバ
ガイド溝の上にある接着性物質層の厚さが小さいか、あ
るいは光ファイバガイド溝の上には接着性物質層が存在
していないことにある。
(Means for Solving the Problems) The present invention provides an optical fiber coupling member that solves the above problems, and is characterized in that an adhesive substance layer interposed between a groove substrate and a plate is provided. Either the thickness of the adhesive substance layer above the optical fiber guide groove is smaller than the thickness, or the adhesive substance layer does not exist above the optical fiber guide groove.

第2図は本発明の光ファイバ結合部材の一具体例の光フ
ァイバガイド溝近傍の横断面図である。図に示すよう
に、プレート(1)と溝基板(2)を接合する接着物質
層(3)としては、例えばICリソグラフィ工程等で使用
されるレジストを用い、光ファイバガイド溝(4)内に
レジストを溶解する剥離液を流して溝(4)上部のレジ
スト層を浸食させる等、化学的あるいは物理的に溝
(4)上部の接着物質層の厚さ(t2)を他の領域の厚さ
(t1)より小さくなるように構成している。
FIG. 2 is a transverse cross-sectional view of a specific example of the optical fiber coupling member of the present invention in the vicinity of the optical fiber guide groove. As shown in the figure, as the adhesive material layer (3) for joining the plate (1) and the groove substrate (2), for example, a resist used in the IC lithography process is used, and the adhesive substance layer (3) is provided in the optical fiber guide groove (4). The thickness (t 2 ) of the adhesive substance layer above the groove (4) can be changed chemically or physically such that a stripping solution that dissolves the resist is flowed to erode the resist layer above the groove (4). It is configured to be smaller than (t 1 ).

第3図は本発明の光ファイバ結合部材の他の具体例の第
2図同様の横断面図で、プレート(1)と溝基板(2)
を結合するという役割を担っていない不要な接着物質層
(3)を、両者の接着強度を損わない程度の範囲で除去
したものである。
FIG. 3 is a cross-sectional view similar to FIG. 2 of another embodiment of the optical fiber coupling member of the present invention, in which the plate (1) and the groove substrate (2) are shown.
The unnecessary adhesive substance layer (3) that does not play the role of bonding the two is removed in a range that does not impair the adhesive strength between the two.

(作用) 第2図のような構成により、従来は光ファイバガイド溝
(4)上部での接着物質層(3)の盛り上がりによる所
定の外径を持つ光ファイバの挿入が困難になるという問
題が回避できるようになった。又この溝(4)上部に位
置する接着物質層の厚さを調整することにより、溝
(4)内の高さをある程度の範囲内で変えることが可能
となり、これによって挿入される光ファイバの外径に適
した溝高さを最適化する操作が容易に行なえるようにな
る。
(Operation) With the configuration as shown in FIG. 2, conventionally, there is a problem that it is difficult to insert an optical fiber having a predetermined outer diameter due to the swelling of the adhesive material layer (3) above the optical fiber guide groove (4). You can avoid it. Further, by adjusting the thickness of the adhesive substance layer located above the groove (4), the height inside the groove (4) can be changed within a certain range, whereby the optical fiber to be inserted can be changed. The operation for optimizing the groove height suitable for the outer diameter can be easily performed.

第3図のような構成によれば、光ファイバガイド溝
(4)上部には接着物質層(3)が存在しないため、こ
の部分におけるゴミ等の付着を防止する作用があり、そ
の結果、ゴミ等の付着による溝(4)内壁の凹凸が少な
くなり、溝(4)内への光ファイバの挿入の際にひっか
かりがなくなり、光ファイバの挿入がスムーズに行なえ
るようになる。
According to the configuration as shown in FIG. 3, since the adhesive substance layer (3) does not exist above the optical fiber guide groove (4), there is an action of preventing adhesion of dust and the like in this portion, and as a result, The unevenness of the inner wall of the groove (4) due to the adhesion of the like is reduced, and when the optical fiber is inserted into the groove (4), there is no catch, and the optical fiber can be inserted smoothly.

又、従来光ファイバガイド穴の断面形状を認識し穴位置
を計測する工程において、溝の長手方向に平行な透過光
を入射し、出射側にてその透過光による溝形状を投影す
ることで形状を認識していたが、仮りに溝内壁の一部に
ゴミが付着していると、このゴミの形状がそのまま投影
されるために、正確な溝形状を認識できなかった。しか
し、第3図のような構成にすることによって、溝内のゴ
ミ付着を極力抑えるため、溝形状の認識を高精度で行な
うことが可能となった。
Also, in the conventional process of recognizing the cross-sectional shape of the optical fiber guide hole and measuring the hole position, the transmitted light parallel to the longitudinal direction of the groove is incident, and the groove shape is projected on the exit side by the transmitted light. However, if dust adheres to a part of the inner wall of the groove, the shape of the dust is projected as it is, and the accurate groove shape cannot be recognized. However, by adopting the configuration as shown in FIG. 3, it is possible to suppress the attachment of dust in the groove as much as possible, so that it is possible to recognize the groove shape with high accuracy.

さらに、プレート(1)と溝基板(2)との接合領域に
おいても、両者の接着強度を損わない程度の範囲内で接
着物質層(3)を除去(6)した場合、後工程で溝
(4)内に光ファイバを挿入し、同時に接着剤にて固定
する際に、接着剤が上記除去部分(6)にも補充され、
これによってプレート(1)と溝基板(2)との接着面
積及び接着強度がさらに増すという効果がある。ここで
いう接着剤は光ファイバを溝(4)内に固定するもの
で、プレート(1)と溝基板(2)を接合する接着物質
よりも、より接着強度が大きいものをいう。
Further, even in the bonding area between the plate (1) and the groove substrate (2), if the adhesive substance layer (3) is removed (6) within a range that does not impair the adhesive strength between the two, the groove is formed in a later step. When the optical fiber is inserted into (4) and fixed at the same time with an adhesive, the adhesive is also replenished to the removed portion (6),
This has the effect of further increasing the bonding area and bonding strength between the plate (1) and the groove substrate (2). The adhesive used here fixes the optical fiber in the groove (4) and has a higher adhesive strength than the adhesive substance that bonds the plate (1) and the groove substrate (2).

(実施例) 第4図は本発明の光ファイバ結合部材を用いた一実施例
としての光コネクタの横断面図である。
(Example) FIG. 4 is a cross-sectional view of an optical connector as an example using the optical fiber coupling member of the present invention.

接着物質層(3)の厚さは1μm程度で、このような薄
い接着物質層(3)を形成するためには、かなり粘性の
低い物質が必要であり、本実施例においては接着物質
(3)としてICリソグラフィ工程等で使用されるレジス
トを用いた。又プレート(1)は肉厚0.5mmのシリコン
板、溝基板(2)は肉厚1.5mmのシリコン板を用いた。
The thickness of the adhesive material layer (3) is about 1 μm, and a material having a considerably low viscosity is necessary to form such a thin adhesive material layer (3). In this embodiment, the adhesive material (3) is used. ) Was used as a resist used in the IC lithography process or the like. The plate (1) is a silicon plate having a thickness of 0.5 mm, and the groove substrate (2) is a silicon plate having a thickness of 1.5 mm.

本コネクタには光ファイバが挿入される光ファイバガイ
ド溝(4)及びガイドピンが挿入されるガイドピン溝
(5)があり、これらの溝(4)(5)の上部には接着
物質層(3)がすべて除去されている。この接着物質層
(3)は前述のようにレジストで構成されているため
に、レジスト剥離液を溝(4)(5)に流し込み、全体
を130℃程度で2〜3分間加熱して除去した。レジスト
層は厚さが1μm程度しかないため短時間で容易に溶解
できる。
The connector has an optical fiber guide groove (4) into which an optical fiber is inserted and a guide pin groove (5) into which a guide pin is inserted, and an adhesive substance layer () is formed above the grooves (4) and (5). All 3) have been removed. Since the adhesive substance layer (3) is composed of the resist as described above, the resist stripping solution is poured into the grooves (4) and (5) and the whole is heated at about 130 ° C. for 2 to 3 minutes to be removed. . Since the resist layer has a thickness of only about 1 μm, it can be easily dissolved in a short time.

レジストは、本来接着剤としての機能は余りないため、
通常の接着剤と比較して接着強度は劣るが、光ファイバ
ガイド溝(4)内への光ファイバ挿入時に、光ファイバ
と上記溝(4)との隙間にレジストよりも接着強度の大
きい接着剤を補充することで、プレート(1)と溝基板
(2)との接合力を十分に保証することが出来る。
Since the resist originally does not have much function as an adhesive,
Although the adhesive strength is inferior to that of a normal adhesive, the adhesive having a larger adhesive strength than the resist in the gap between the optical fiber and the groove (4) when the optical fiber is inserted into the optical fiber guide groove (4). By replenishing, the bonding force between the plate (1) and the groove substrate (2) can be sufficiently ensured.

(発明の効果) 上述した本発明の光ファイバ結合部材によれば、光ファ
イバガイド溝上部の接着物質層の厚さを他の領域よりも
薄くし、その厚さを調整することにより、多少外径のバ
ラツク光ファイバでもクリアランスを大きくすることな
く、溝内に挿入、固定することができる。
(Effects of the Invention) According to the above-described optical fiber coupling member of the present invention, the thickness of the adhesive substance layer above the optical fiber guide groove is made thinner than the other regions, and the thickness is adjusted, so that the thickness of the adhesive substance layer becomes slightly outside. Even an optical fiber of varying diameter can be inserted and fixed in the groove without increasing the clearance.

又光ファイバガイド溝上部の接着物質層を除去すること
によって溝内のゴミ等の付着を防止し、その結果ゴミに
よる凹凸が少ないため溝内への光ファイバの挿入が容易
になると共に、透過光を用いての溝形状の認識を高精度
に行なうことが出来る。
Also, by removing the adhesive substance layer on the upper part of the optical fiber guide groove, adhesion of dust and the like in the groove is prevented, and as a result, there are few irregularities due to dust, so that the optical fiber can be easily inserted into the groove and the transmitted light is transmitted. The groove shape can be recognized with high accuracy.

さらに、プレートと溝基板との接合面に接着物質層の存
在しない若干の空隙が存在することにより、後工程の光
ファイバ挿入時に、接着強度の大きい物質を上記空隙に
補充することにより、プレートと溝基板との接合力をさ
らに増大することができる。
Furthermore, since there are some voids in the bonding surface between the plate and the groove substrate where there is no adhesive substance layer, when the optical fiber is inserted in a later step, a substance having a high adhesive strength is replenished in the above voids, and The bonding force with the groove substrate can be further increased.

【図面の簡単な説明】[Brief description of drawings]

第1図はプレートと溝基板とを接着物質層を介して接合
して成る光ファイバ結合部材の一例の横断面図である。 第2図及び第3図は本発明の光ファイバ結合部材の具体
例の溝近傍の横断面図、第4図は本発明の光ファイバ結
合部材の一実施例の横断面図である。 第5図は従来の光ファイバ結合部材の問題点の説明図、
第6図及び第7図はいずれも光ファイバ結合部材への光
ファイバの位置決めの説明図である。 1……プレート、2……溝基板、3……接着物質層、4
……光ファイバガイド溝、5……ガイドピン溝。
FIG. 1 is a cross-sectional view of an example of an optical fiber coupling member formed by joining a plate and a groove substrate via an adhesive material layer. 2 and 3 are transverse cross-sectional views of the vicinity of the groove of the specific example of the optical fiber coupling member of the present invention, and FIG. 4 is a transverse sectional view of an embodiment of the optical fiber coupling member of the present invention. FIG. 5 is an explanatory view of problems of the conventional optical fiber coupling member,
6 and 7 are explanatory views for positioning the optical fiber on the optical fiber coupling member. 1 ... Plate, 2 ... Groove substrate, 3 ... Adhesive material layer, 4
…… Optical fiber guide groove, 5 …… Guide pin groove.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】光ファイバガイド溝を形成した溝基板とプ
レートが接着性物質層を介して接合されて成る光ファイ
バ結合部材において、溝基板とプレートの間に介在して
いる接着性物質層の厚さに対して、光ファイバガイド溝
の上にある接着性物質層の厚さが小さいか、あるいは光
ファイバガイド溝の上には接着性物質層が存在していな
いことを特徴とする光ファイバ結合部材。
1. An optical fiber coupling member comprising a grooved substrate having an optical fiber guide groove and a plate bonded to each other via an adhesive substance layer, wherein an adhesive substance layer interposed between the grooved substrate and the plate. The thickness of the adhesive substance layer above the optical fiber guide groove is smaller than the thickness, or the adhesive substance layer does not exist above the optical fiber guide groove. Coupling member.
JP876187A 1986-11-15 1987-01-16 Optical fiber coupling member Expired - Lifetime JPH0786575B2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
JP876187A JPH0786575B2 (en) 1987-01-16 1987-01-16 Optical fiber coupling member
DE3751810T DE3751810T2 (en) 1986-11-15 1987-11-13 Process for the production of an optical connector
EP87116804A EP0271721B1 (en) 1986-11-15 1987-11-13 Optical connector and process for producing the same
EP91121375A EP0482673B1 (en) 1986-11-15 1987-11-13 Optical connector
DE3752078T DE3752078T2 (en) 1986-11-15 1987-11-13 Optical connector
EP90116010A EP0405620B1 (en) 1986-11-15 1987-11-13 Process for producing an optical connector
DE87116804T DE3786900T2 (en) 1986-11-15 1987-11-13 Optical connector and its manufacturing process.
CA000551847A CA1302758C (en) 1986-11-15 1987-11-13 Optical connector and process for producing the same
US07/120,521 US4830456A (en) 1986-11-15 1987-11-13 Optical connector and process for producing the same
KR870012843A KR880006559A (en) 1986-11-15 1987-11-14 Fiber Optic Splicer and Manufacturing Method Thereof
AU81263/87A AU601240B2 (en) 1986-11-15 1987-11-16 Optical connector and process for producing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP876187A JPH0786575B2 (en) 1987-01-16 1987-01-16 Optical fiber coupling member

Publications (2)

Publication Number Publication Date
JPS63175809A JPS63175809A (en) 1988-07-20
JPH0786575B2 true JPH0786575B2 (en) 1995-09-20

Family

ID=11701903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP876187A Expired - Lifetime JPH0786575B2 (en) 1986-11-15 1987-01-16 Optical fiber coupling member

Country Status (1)

Country Link
JP (1) JPH0786575B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4915633B2 (en) * 2004-04-23 2012-04-11 パナソニック株式会社 Manufacturing method of optical fiber array

Also Published As

Publication number Publication date
JPS63175809A (en) 1988-07-20

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