JPS6385509A - Method for coupling optical waveguide and optical fiber - Google Patents
Method for coupling optical waveguide and optical fiberInfo
- Publication number
- JPS6385509A JPS6385509A JP23271686A JP23271686A JPS6385509A JP S6385509 A JPS6385509 A JP S6385509A JP 23271686 A JP23271686 A JP 23271686A JP 23271686 A JP23271686 A JP 23271686A JP S6385509 A JPS6385509 A JP S6385509A
- Authority
- JP
- Japan
- Prior art keywords
- waveguide
- optical
- optical fiber
- fiber
- coupling
- 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.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 37
- 230000003287 optical effect Effects 0.000 title claims abstract description 36
- 230000008878 coupling Effects 0.000 title claims abstract description 29
- 238000010168 coupling process Methods 0.000 title claims abstract description 29
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 7
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 230000004927 fusion Effects 0.000 claims description 11
- 239000000835 fiber Substances 0.000 abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 238000005530 etching Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract 2
- 238000007796 conventional method Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/30—Optical coupling means for use between fibre and thin-film device
Abstract
Description
【発明の詳細な説明】
〔概要〕
導波路基板上に形成した光導波路と光ファイバを結合す
る方法であって、導波路基板に形成した光導波路と光フ
ァイバとの結合部分を削除し、該削除した空間部分にお
いて前記光導波路と光ファイバを融着結合するので、両
者の熱容量が略等しくなり熱融着が容易に行なえる。[Detailed Description of the Invention] [Summary] A method for coupling an optical waveguide formed on a waveguide substrate and an optical fiber, which involves removing the coupling portion between the optical waveguide formed on the waveguide substrate and the optical fiber, and Since the optical waveguide and the optical fiber are fusion-coupled in the removed space, the heat capacity of the two becomes approximately equal, and thermal fusion can be easily performed.
本発明は、光ファイバと光導波路の結合を空間すなわら
熱容量の略同等の条件下で行なうようにした光導波路と
光ファイバの結合方法に関する。The present invention relates to a method for coupling an optical waveguide and an optical fiber, in which the coupling between the optical fiber and the optical waveguide is performed under conditions of substantially equal space and heat capacity.
近年、光導波路部品は、光通信システムの多様化に対応
し、その商品化が要望されている。これは光システムが
幹線系から加入者系、事務所での構内系として急速に伸
び、アプリケーションの多様化及び端末の増加が進み、
使用が容易な部品で多種の部品を経済的に供給する必要
が生じて来た。In recent years, commercialization of optical waveguide components has been desired in response to the diversification of optical communication systems. This is due to the rapid growth of optical systems from trunk lines to subscriber systems to office premises systems, and the diversification of applications and increase in the number of terminals.
A need has arisen to economically supply a wide variety of parts with parts that are easy to use.
とくに光ファイバと導波路基板に形成した光導波路との
結合の構造には強度的に弱点があり、光ファイバの軸方
向の結合力を強化する融着方法の開発が強く要望されて
いる。In particular, the structure of the coupling between the optical fiber and the optical waveguide formed on the waveguide substrate has weak points in terms of strength, and there is a strong demand for the development of a fusion method that strengthens the coupling force in the axial direction of the optical fiber.
第２図は、従来の光導波路と光ファイバの結合方法を説
明する要部斜視図である。FIG. 2 is a perspective view of essential parts for explaining a conventional method of coupling an optical waveguide and an optical fiber.
図において、シリコン（Ｓｉ）等からなる導波路基板３
上に、石英ガラス等からなる光導波路２を形成するとと
もに、前記光導波路２の延長線上の導波路基板３の端部
にファイバの位置合せブロック５を設け、該ファイバ位
置合せブロック５に外部から導入された光ファイバ１を
嵌めこんで、該光ファイバの端末と前記光導波路３とを
結合部分６において、接着剤又は熱融着による結合が行
なわれている。In the figure, a waveguide substrate 3 made of silicon (Si) or the like is shown.
An optical waveguide 2 made of quartz glass or the like is formed on the top, and a fiber alignment block 5 is provided at the end of the waveguide substrate 3 on the extension line of the optical waveguide 2. The introduced optical fiber 1 is inserted, and the end of the optical fiber and the optical waveguide 3 are connected at the connecting portion 6 by adhesive or heat fusion.
上記従来の光導波路と光ファイバの結合方法にあっては
、前者すなわち接着剤による結合は結合力が弱く経年変
化等により信頼度の維持が困難であるという問題があり
、また後者すなわち熱融着による結合は光ファイバと光
導波路の熱容量が大幅に異なる（光導波路が導波路基板
と一体のため）ので良好な熱融着が期待出来ず信頼度が
得られないという問題点があった。Regarding the above-mentioned conventional methods of coupling optical waveguides and optical fibers, there is a problem in that the former, that is, the bonding using adhesives, has a weak bonding force and it is difficult to maintain reliability due to changes over time, and the latter, that is, thermal fusion The problem with this coupling is that the heat capacity of the optical fiber and the optical waveguide are significantly different (because the optical waveguide is integrated with the waveguide substrate), so good thermal fusion cannot be expected and reliability cannot be obtained.
〔問題点を解決するための手段〕
本発明は、上記の問題点を解決して略同等の熱容量下で
熱融着が行なえるようにした光導波路と光ファイバの結
合方法を提供するものである。[Means for Solving the Problems] The present invention provides a method for coupling an optical waveguide and an optical fiber, which solves the above problems and allows thermal fusion to be performed under substantially the same heat capacity. be.
すなわち、導波路基板上に形成した光導波路と光ファイ
バの結合を行なう時、前記導波路と光ファイバとの結合
部分に対応する前記導波路基板の周囲を除去して除去部
分を形成し、この導波路基板の除去部分において、前記
光導波路と光ファイバを融着結合することによって解決
される。That is, when coupling an optical waveguide formed on a waveguide substrate to an optical fiber, the periphery of the waveguide substrate corresponding to the coupling portion between the waveguide and the optical fiber is removed to form a removed portion. This problem is solved by fusion-bonding the optical waveguide and the optical fiber in the removed portion of the waveguide substrate.
上記光導波路と光ファイバの結合方法は、導波路と光フ
ァイバとの結合部分に対応する前記導波路基板の一部を
削除して除去部分を形成し、この導波路基板の除去部分
すなわち空間において、前記光導波路と光ファイバとが
略同等の熱容量となるので、熱融着が容易かつ確実な融
着結合が行なえ、信頼度の高い熱融着が実現でき、光フ
ァイバの軸方向の結合力が強化される。The method for coupling an optical waveguide and an optical fiber is to remove a portion of the waveguide substrate corresponding to the coupling portion between the waveguide and the optical fiber to form a removed portion, and to form a removed portion of the waveguide substrate, that is, a space. Since the optical waveguide and the optical fiber have approximately the same heat capacity, thermal fusion bonding can be performed easily and reliably, and highly reliable thermal fusion bonding can be achieved, and the coupling strength in the axial direction of the optical fiber is will be strengthened.
第１図は、本発明の一実施例を説明する図で、同図（ａ
）は要部側断面図、（ｂ）は要部斜視図で、第２図と同
等の部分には同一符号を付して記した。FIG. 1 is a diagram illustrating an embodiment of the present invention.
) is a side sectional view of the main part, and (b) is a perspective view of the main part, in which the same parts as in FIG. 2 are given the same reference numerals.
図において、シリコン（Ｓｉ）等からなる導波路基板３
′に、光導波路２と光ファイバ１との結合部分６の対応
する部分を一辺が１００〜２００μ程度エツチングによ
り削除（図では正方形の孔を示す）して除去部分４を形
成するとともに、前記導波路基板３′上に石英ガラス等
からなる光導波路２の一端が、前記除去部分４の略中夫
に突出するように形成し、さらに、前記導波路基板３′
の前記光導波路２の延長線上の端部にファイバの位置合
せブロック５を設け、該ファイバ位置合せブロック５に
外部から導入された光ファイバ１を嵌め込んで、該光フ
ァイバ１の端末と前記光導波路３との結合部分６を除去
部分４すなわち空間において、光導波路２と光ファイバ
１が略熱容量が同等の条件下で熱融着が行なえるので、
光ファイバの１の軸方向の結合力が強化される。In the figure, a waveguide substrate 3 made of silicon (Si) or the like is shown.
', a corresponding portion of the coupling portion 6 between the optical waveguide 2 and the optical fiber 1 is removed by etching approximately 100 to 200 μm on each side (a square hole is shown in the figure) to form a removed portion 4, and the removed portion 4 is removed. One end of the optical waveguide 2 made of quartz glass or the like is formed on the waveguide substrate 3' so as to protrude substantially into the middle of the removed portion 4, and the waveguide substrate 3'
A fiber alignment block 5 is provided at the end of the extension of the optical waveguide 2, and the optical fiber 1 introduced from the outside is fitted into the fiber alignment block 5, so that the end of the optical fiber 1 and the optical guide are fitted. Since the coupling portion 6 with the waveguide 3 is removed in the portion 4, that is, in the space, thermal fusion can be performed under conditions where the optical waveguide 2 and the optical fiber 1 have approximately the same heat capacity.
The coupling force in the axial direction of one of the optical fibers is strengthened.
なお、本実施例では除去部分４を正方形について説明し
たが、正方形に限らず円形その他の多角形又は切欠き状
のものであっても構わない。また除去部分４の大きさは
出来る限り大きく形成するのが好ましい。In this embodiment, the removed portion 4 is described as a square, but it is not limited to a square, but may be circular or other polygonal, or notch-shaped. Further, it is preferable that the size of the removed portion 4 is formed as large as possible.
以上の説明から明らかなように、本発明によれば光導波
路と光ファイバが略同等の熱容量の条件下で融着が行な
われるので、融着作業能率が向上するとともに、光ファ
イバの軸方向の結合力が強化され、信頼度の向上に極め
て有効である。As is clear from the above description, according to the present invention, the optical waveguide and the optical fiber are fused under conditions of approximately the same heat capacity, so the fusion work efficiency is improved and the axial direction of the optical fiber is This strengthens the bonding force and is extremely effective in improving reliability.
第１図は、本発明の一実施例を説明する図で、同図（ａ
ｌは要部側断面図、（ｂ）は要部斜視図、第２図は、従
来の光導波路と光ファイバの結合方法を説明する要部斜
視図である。
図において、１は光ファイバ、２は光導波路、３．３′
は導波路基板、４は除去部分、５はファイバ位置合せブ
ロック、６は結合部分、をそれぞれ示す。
（α）
、本、発明の一欠施例
第１図FIG. 1 is a diagram illustrating an embodiment of the present invention.
1 is a side sectional view of the main part, (b) is a perspective view of the main part, and FIG. 2 is a perspective view of the main part explaining a conventional method of coupling an optical waveguide and an optical fiber. In the figure, 1 is an optical fiber, 2 is an optical waveguide, 3.3'
4 indicates a waveguide substrate, 4 indicates a removed portion, 5 indicates a fiber alignment block, and 6 indicates a coupling portion, respectively. (α) , The present invention, a partial embodiment of the invention Fig. 1
Claims (1)
イバ（１）を結合する方法において、 前記導波路（２）と光ファイバ（１）との結合部分（６
）に対応する前記導波路基板（３）の周囲を除去して除
去部分（４）を形成し、 該導波路基板（３）の除去部分（４）において、前記光
導波路（２）と光ファイバ（１）を融着結合することを
特徴とする光導波路と光ファイバの結合方法。[Claims] A method for coupling an optical waveguide (2) formed on a waveguide substrate (3) and an optical fiber (1), comprising: a coupling portion between the waveguide (2) and the optical fiber (1); 6
), forming a removed portion (4) by removing the periphery of the waveguide substrate (3) corresponding to the waveguide substrate (3), and in the removed portion (4) of the waveguide substrate (3), the optical waveguide (2) A method for coupling an optical waveguide and an optical fiber, characterized by fusion coupling (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23271686A JPS6385509A (en) | 1986-09-29 | 1986-09-29 | Method for coupling optical waveguide and optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23271686A JPS6385509A (en) | 1986-09-29 | 1986-09-29 | Method for coupling optical waveguide and optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6385509A true JPS6385509A (en) | 1988-04-16 |
| JPH0532727B2 JPH0532727B2 (en) | 1993-05-17 |
Family
ID=16943664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23271686A Granted JPS6385509A (en) | 1986-09-29 | 1986-09-29 | Method for coupling optical waveguide and optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6385509A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS642009A (en) * | 1987-06-25 | 1989-01-06 | Agency Of Ind Science & Technol | Integrated light guide element |
| JPH02251916A (en) * | 1989-03-27 | 1990-10-09 | Nippon Telegr & Teleph Corp <Ntt> | Method for connecting quartz-based optical waveguide circuit and optical fiber |
| EP0638826A2 (en) * | 1993-08-12 | 1995-02-15 | AT&T Corp. | Splicing integrated optical circuit to glass fibers |
-
1986
- 1986-09-29 JP JP23271686A patent/JPS6385509A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS642009A (en) * | 1987-06-25 | 1989-01-06 | Agency Of Ind Science & Technol | Integrated light guide element |
| JPH02251916A (en) * | 1989-03-27 | 1990-10-09 | Nippon Telegr & Teleph Corp <Ntt> | Method for connecting quartz-based optical waveguide circuit and optical fiber |
| EP0638826A2 (en) * | 1993-08-12 | 1995-02-15 | AT&T Corp. | Splicing integrated optical circuit to glass fibers |
| EP0638826A3 (en) * | 1993-08-12 | 1995-04-26 | At & T Corp | Splicing integrated optical circuit to glass fibers. |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0532727B2 (en) | 1993-05-17 |
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