JPS6041324B2 - How to connect optical fiber and lens - Google Patents
How to connect optical fiber and lensInfo
- Publication number
- JPS6041324B2 JPS6041324B2 JP57026819A JP2681982A JPS6041324B2 JP S6041324 B2 JPS6041324 B2 JP S6041324B2 JP 57026819 A JP57026819 A JP 57026819A JP 2681982 A JP2681982 A JP 2681982A JP S6041324 B2 JPS6041324 B2 JP S6041324B2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- lens
- far
- guided
- infrared
- 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
Links
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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
-
- 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
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
- G02B6/322—Optical coupling means having lens focusing means positioned between opposed fibre ends and having centering means being part of the lens for the self-positioning of the lightguide at the focal point, e.g. holes, wells, indents, nibs
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
- G02B6/4203—Optical features
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Description
【発明の詳細な説明】
本発明はしンズを介した光フアィバのコネクタにおいて
、そのレンズと光フアィバとの結合方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of coupling a lens and an optical fiber in an optical fiber connector via a lens.
従来の光フアィバとしンズの結合例を第１図に示す。An example of a conventional combination of optical fiber and lenses is shown in FIG.
第１図において、１は光フアィバ、２はしンズ、３は補
強用接着剤、４は補強用金具である。光フアィバ１とし
ンズ２の結合位置は微動台によって調整した後、合成樹
脂、半田等の接着剤３によって補強用金具４に固定する
方法が探られており、光フアィバとしンズとの相対的位
置がレンズの端面上で移動し得る構造となっているので
、接着剤自体の収縮により、光フアィバが移動し、正確
な位置に結合することが困難であった。またこのような
結合では、結合後の温度変動、衝撃等に対して、良好な
ものが得られないという欠点があった。本発明は、光フ
アィバとしンズを高精度で結合せしめ、かつ結合後の位
置ずれを除去するため、レンズによって収束した光線を
遠赤外用光フアイバに導き、光パワがピークとなるレン
ズ面上の位置に遠赤外用光フアィバを調整し、その後、
結合位置調整済みの遠赤外用光フアィバによって導かれ
たＣ０２レーザ光を用い、レーザ加工によってレンズ面
上の焦点位置に穴をあげ、その穴に光フアィバを差し込
んで、光フアィバとしンズの相対的位置決めと固定を行
うようにしたものである。In FIG. 1, 1 is an optical fiber, 2 is a resin, 3 is a reinforcing adhesive, and 4 is a reinforcing metal fitting. A method has been explored in which the bonding position of the optical fiber 1 and the lenses 2 is adjusted using a fine adjustment table and then fixed to the reinforcing metal fitting 4 using an adhesive 3 such as synthetic resin or solder. Since the optical fiber is structured to be movable on the end face of the lens, the optical fiber moves due to shrinkage of the adhesive itself, making it difficult to bond the optical fiber to an accurate position. In addition, such bonding has the disadvantage that it is difficult to obtain good results against temperature fluctuations, shocks, etc. after bonding. In order to combine optical fibers and lenses with high precision and eliminate positional deviation after the combination, the present invention guides the light rays converged by the lens to the far-infrared optical fiber, and then Adjust the far-infrared optical fiber to the position, then
Using a C02 laser beam guided by a far-infrared optical fiber whose coupling position has been adjusted, a hole is created at the focal point on the lens surface by laser processing, the optical fiber is inserted into the hole, and the relative position between the optical fiber and the lens is determined. This is for positioning and fixing.
以下図面により本発明を詳細に説明する。第２図ａ，ｂ
は本発明の実施例を示し、１は光ファィバ、２はしンズ
（円柱状）、３は合成樹脂、半田等の補強用接着剤、４
は補強用金具である。The present invention will be explained in detail below with reference to the drawings. Figure 2 a, b
1 shows an example of the present invention, 1 is an optical fiber, 2 is a cylinder (cylindrical shape), 3 is a synthetic resin, a reinforcing adhesive such as solder, and 4 is a reinforcing adhesive such as a solder.
is a reinforcing metal fitting.
第２図に示された穴の位置決めおよび穴あげを行うため
の系を第３図に示す。A system for positioning and drilling the hole shown in FIG. 2 is shown in FIG.
第３図において、５は遠赤外用光フアィバ（例えば硫化
物系ガラス、ふつ化物系ガラス、カルコゲン化物系ガラ
スを用いる。例としてＡｓ−Ｓ系の透過波長城は１．５
〜１２ｒの、Ａｓ−Ｓｅ−Ｔｅ系では１〜１３山風であ
る）、６はＣ０２レーザ（波長１０．６仏ｍ）、７は光
パワメー夕（波長１．３山肌）、８はラインモニタ（光
方向性結合器）、９は微動台である。光ファイバーとし
ンズ２は結合位置を決定するには、第３図ａに示すよう
に、レンズ２に入射された光線（例えば信号伝送用とし
て波長１．３ｒの）を遠赤外用光フアィバ５に導きライ
ンモニタ８を介して光パワメータ７に入射させ、光パワ
がピーク値になるように、微動台９で遠赤外用光フアィ
バ５の位置を調整する。In Fig. 3, reference numeral 5 indicates a far-infrared optical fiber (for example, sulfide glass, fluoride glass, or chalcogenide glass is used. For example, the transmission wavelength range of As-S system is 1.5.
~12r, in the As-Se-Te system, it is 1 to 13 Yamakaze), 6 is a C02 laser (wavelength 10.6 m), 7 is an optical power meter (wavelength 1.3 mountain face), 8 is a line monitor ( (optical directional coupler), 9 is a fine movement table. To determine the coupling position between the optical fiber and the lens 2, as shown in FIG. The far-infrared optical fiber 5 is adjusted in position with the fine adjustment stage 9 so that the light is input to the optical power meter 7 via the line monitor 8 and the optical power reaches its peak value.
結合位置が決定された後に、第３図ｂに示すように、Ｃ
０２レーザ６の光を結合位置調整済みの遠赤外用光フア
イバ５に導き、遠赤外用光フアィバ５の端部から放射さ
れるＣ０２レーザ光によってレンズ２の端面を加工する
。この際しンズ２はセルフオツクレンズのような多成分
ガラスまたは半球面の形状の石英系ガラスを用いている
ので、Ｃ○２レ−ザの波長城における光損失が１ぴ〜１
びｏ聡′物と不透明であるので、光エネルギーの吸収が
大きく、レンズ２の表面を加工することができる。Ｃ○
２レ−ザ光によってレンズ面上に形成された穴に光フア
ィバ１を差し込み、その部分を合成樹脂またはガラス半
田等の接着剤３により補強して、光フアィバ１としンズ
２の結合系を構成する。このように結合することにより
、光ファイバーとしンズ２の相対的位置決めと固定が精
度よくでき、また光ファイバーがレンズ２に直接、接続
され、温度変動、衝撃等に強い結合を実現できる。After the binding position is determined, as shown in Figure 3b, C
The light of the 02 laser 6 is guided to the far-infrared optical fiber 5 whose coupling position has been adjusted, and the end face of the lens 2 is processed by the C02 laser beam emitted from the end of the far-infrared optical fiber 5. At this time, the lens 2 uses multi-component glass like a self-cleaning lens or hemispherical quartz glass, so the optical loss at the wavelength range of the C○2 laser is 1 to 1.
Since it is transparent and opaque, it absorbs a lot of light energy and the surface of the lens 2 can be processed. C○
2. Insert the optical fiber 1 into the hole formed on the lens surface by the laser beam, and reinforce that part with an adhesive 3 such as synthetic resin or glass solder to form a coupling system between the optical fiber 1 and the lenses 2. do. By coupling in this manner, the relative positioning and fixing of the optical fiber and the lens 2 can be performed with high precision, and the optical fiber is directly connected to the lens 2, making it possible to realize a coupling that is strong against temperature fluctuations, shocks, and the like.
以上説明したように本発明の光フアィバとしンズの結合
方法は、遠赤外用光フアィバをレンズの焦点位置に調整
させた後、その遠赤外用光フアイバに導かれたＣ０２レ
ーザ光によって、レンズ面を加工し、その加工後の穴に
光フアィバを挿入して固定する結合方法であるので、結
合の位置決め精度が高く、かつ温度変動、衝撃等の外力
に対して位置ずれの少ない、従って結合損失が小さく、
光損失の変動の少ない結合が可能となる。As explained above, in the method of combining an optical fiber and lenses of the present invention, after adjusting the far-infrared optical fiber to the focal position of the lens, the C02 laser beam guided to the far-infrared optical fiber is used to This is a coupling method in which the optical fiber is inserted and fixed into the hole after processing, so the coupling positioning accuracy is high, and there is little positional shift due to external forces such as temperature fluctuations and shocks, so there is little coupling loss. is small,
This enables coupling with less fluctuation in optical loss.
第１図は従来の光ファィバとしンズの結合状態の一例を
示す図、第２図ａ，ｂは本発明の実施例図、第３図ａ，
ｂはその製造手順を示す図である。
１・・・…光フアィバ、２・・・・・・円柱状レンズ、
３・・・・・・補強用接着剤、４・・・・・・補強用金
具、５・…・・遠赤外用光フアィバ、６……Ｃ０２レー
ザ、７……光パワメータ、８…・・・ラインモニタ、９
・・・・・・微動台。
第１図第２図
第３図Fig. 1 is a diagram showing an example of a conventional coupling state of an optical fiber and lenses, Figs. 2 a and b are illustrations of an embodiment of the present invention, and Figs. 3 a,
b is a diagram showing the manufacturing procedure. 1... Optical fiber, 2... Cylindrical lens,
3...Reinforcement adhesive, 4...Reinforcement metal fittings, 5...Far-infrared optical fiber, 6...C02 laser, 7...Optical power meter, 8...・Line monitor, 9
・・・・・・Microtable. Figure 1 Figure 2 Figure 3
Claims (1)
フアイバに導くための光フアイバとレンズの結合方法に
おいて、前記レンズに入射させた光線をレンズによつて
絞り、前記レンズに光線を入射させたのと反対側の面か
ら出射する光線を微動台上に固定させた遠赤外用の光フ
アイバに導き、この遠赤外用光フアイバに導き、この遠
赤外用光フアイバに導かれた光線の強度が最大になるよ
うに前記微動台によつて遠赤外用光フアイバの位置を調
節した後、遠赤外用光フアイバに導かれた前記光線の方
向と逆方向に遠赤外用光フアイバの端部からレーザ光線
を導き、前記レンズをレーザ加工により加工させ、前記
光フアイバを固定するための穴を形成させ、この穴に前
記光フアイバを差し込むことにより、前記光フアイバと
前記レンズの相対的位置決めと固定とを行うことを特徴
とする光フアイバとレンズの結合方法。1. A method of combining an optical fiber and a lens in which the light rays from a light source are converged by a lens and guided to an optical fiber, in which the light rays incident on the lens are focused by the lens, and the light rays are made incident on the lens. The light beam emitted from the opposite side is guided to a far-infrared optical fiber fixed on a fine adjustment table, and the light beam guided to this far-infrared optical fiber is After adjusting the position of the far-infrared optical fiber using the fine movement table so that the intensity is maximized, the end of the far-infrared optical fiber is moved in the opposite direction to the direction of the light beam guided to the far-infrared optical fiber. A laser beam is guided from the lens, the lens is processed by laser processing, a hole for fixing the optical fiber is formed, and the optical fiber is inserted into this hole, thereby determining the relative position of the optical fiber and the lens. A method for joining an optical fiber and a lens, the method comprising: fixing the optical fiber and the lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57026819A JPS6041324B2 (en) | 1982-02-23 | 1982-02-23 | How to connect optical fiber and lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57026819A JPS6041324B2 (en) | 1982-02-23 | 1982-02-23 | How to connect optical fiber and lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58144806A JPS58144806A (en) | 1983-08-29 |
| JPS6041324B2 true JPS6041324B2 (en) | 1985-09-17 |
Family
ID=12203879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57026819A Expired JPS6041324B2 (en) | 1982-02-23 | 1982-02-23 | How to connect optical fiber and lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6041324B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63123434U (en) * | 1987-02-04 | 1988-08-11 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2615400B2 (en) * | 1992-05-28 | 1997-05-28 | 東京工業大学長 | Non-adjustable optical connector |
| JP2968916B2 (en) * | 1993-08-25 | 1999-11-02 | ローム株式会社 | Manufacturing method of optical fiber receptacle |
| JP2654755B2 (en) * | 1994-03-10 | 1997-09-17 | 日本板硝子株式会社 | Low-reflection optical components with uneven mating connection |
| JP4312393B2 (en) * | 2001-01-26 | 2009-08-12 | ラボ・スフィア株式会社 | BULK TYPE LENS, LIGHT EMITTING BODY, LIGHTING APPARATUS AND METHOD FOR PRODUCING BULK TYPE LENS |
-
1982
- 1982-02-23 JP JP57026819A patent/JPS6041324B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63123434U (en) * | 1987-02-04 | 1988-08-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58144806A (en) | 1983-08-29 |
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