JPH0664218B2 - Optical element package - Google Patents
Optical element packageInfo
- Publication number
- JPH0664218B2 JPH0664218B2 JP2154284A JP2154284A JPH0664218B2 JP H0664218 B2 JPH0664218 B2 JP H0664218B2 JP 2154284 A JP2154284 A JP 2154284A JP 2154284 A JP2154284 A JP 2154284A JP H0664218 B2 JPH0664218 B2 JP H0664218B2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- optical fiber
- light emitting
- optical
- emitting element
- 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
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
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Led Devices (AREA)
Description
【発明の詳細な説明】 〔発明の属する技術分野〕 この発明は光学素子パッケージに関する。Description: TECHNICAL FIELD The present invention relates to an optical element package.
従来この種のパッケージとして第１図に示すように、発
光素子（１）を固定したステム（20）の取付けられたフ
ランジ（８）の法線と発光素子（１）の発光中心と光学
レンズ（２）の中心を結んだ直線を一致させ、その直線
上に光ファイバ（３）を固定したパッケージが知られて
いる。しかし、光ファイバ（３）の端面は通常発光素子
（１）への戻り光を減少させるために斜研磨してあるの
で、光ファイバ（３）内光入力値を最良にするためには
第２図のように光ファイバ（３）を傾けて固定しなけれ
ばならなかった。このように固定するとパッケージの外
に出る部分の光ファイバ（３）が傾くか、または光ファ
イバ（３）の固定されたフランジ（12）が発光素子
（１）を固定したステム（20）の取付けられたフランジ
（８）に対して不安定な固定をしなければならないとい
う問題点があった。As a conventional package of this type, as shown in FIG. 1, a normal line of a flange (8) to which a stem (20) fixed to a light emitting element (1) is attached, a light emitting center of the light emitting element (1), and an optical lens ( There is known a package in which a straight line connecting the centers of 2) is aligned and the optical fiber (3) is fixed on the straight line. However, since the end surface of the optical fiber (3) is usually obliquely polished in order to reduce the return light to the light emitting element (1), it is necessary to use the second surface in order to optimize the optical input value in the optical fiber (3). The optical fiber (3) had to be tilted and fixed as shown. When fixed in this manner, the optical fiber (3) at the portion outside the package is inclined, or the flange (12) to which the optical fiber (3) is fixed attaches the stem (20) to which the light emitting element (1) is fixed. There has been a problem that the flange (8) provided must be fixed unstable.
本発明は上述した従来パッケージの問題点を改良したも
ので発光素子への戻り光を減少でき、パッケージの外に
出る部分の光ファイバが傾くことなく、また、光ファイ
バの固定されたフランジを発光素子を固定したステムの
取付けられたフランジに対して安定した固定ができ、光
ファイバ内最良光入力値の得られる光学素子パッケージ
を提供することを目的とする。The present invention is an improvement over the above-mentioned problems of the conventional package, which can reduce the return light to the light emitting element, prevent the optical fiber at the portion outside the package from tilting, and emit light from the flange to which the optical fiber is fixed. It is an object of the present invention to provide an optical element package which can be stably fixed to a flange to which a stem to which an element is fixed is attached and which can obtain the best optical input value in an optical fiber.
本発明は発光素子への戻り光を減少するために端面を斜
研磨した光ファイバを用いて、発光素子チップを固定し
たステムを取付けたフランジの法線と、発光素子中心と
光学レンズ中心を結ぶ直線のなす角を０゜〜10゜になる
ようにフランジと光学レンズを配置し、発光素子中心と
光学レンズ中心を結ぶ直線を含む平面に光ファイバ端面
の長直径を含ませ、その直線とファイバ端面の法線のな
す角を大きい方向に光ファイバを固定したものである。The present invention uses an optical fiber whose end face is obliquely polished to reduce the return light to the light emitting element, and connects the normal line of the flange to which the stem to which the light emitting element chip is fixed and the center of the light emitting element and the center of the optical lens are connected. The flange and the optical lens are arranged so that the angle formed by the straight line is 0 ° to 10 °, and the long diameter of the end face of the optical fiber is included in the plane including the straight line connecting the center of the light emitting element and the center of the optical lens. The optical fiber is fixed in a direction in which the angle formed by the normal to the end face is large.
これにより、発光素子への戻り光は減少し、光ファイバ
内最良光入力値を得ることができ、パッケージの外に出
る部分の光ファイバはパッケージに対し垂直で、光ファ
イバの固定されたフランジが発光素子チップを固定した
ステムの取付けられたフランジに対して安定に固定する
ことができる。As a result, the return light to the light emitting element is reduced, the best optical input value in the optical fiber can be obtained, the optical fiber at the part outside the package is perpendicular to the package, and the fixed flange of the optical fiber is The light emitting element chip can be stably fixed to the flange to which the stem is fixed.
第３図は実施例を示すものである。 FIG. 3 shows an embodiment.
斜研磨光ファイバでは通常第４図のように光ファイバ
（11）への入射光（13）の角度を定めると、入射光（1
3）の角度と光ファイバ（11）内光入力値との関係及び
入射光（13）の角度と入射光方向へ戻る反射光の強度の
関係は第５図に示すようになる。すなわち入射光（13）
の角度が正の角度を持つとき最大光入力値を得、又反射
戻り光が減少するという特徴がある。In obliquely polished optical fibers, when the angle of the incident light (13) to the optical fiber (11) is usually determined as shown in Fig. 4, the incident light (1
The relationship between the angle 3) and the light input value in the optical fiber (11) and the relationship between the angle of the incident light (13) and the intensity of the reflected light returning in the incident light direction are as shown in FIG. Ie incident light (13)
When the angle is positive, the maximum light input value is obtained, and the reflected return light is reduced.
このことより、光ファイバ（11）へ発光素子（７）から
の出力光を正の角度をもつように入射させるように発光
素子（７）、光学レンズ（９）、斜研磨光ファイバ（1
1）を配置する。As a result, the light emitting element (7), the optical lens (9), and the obliquely polished optical fiber (1) are arranged so that the output light from the light emitting element (7) enters the optical fiber (11) at a positive angle.
Place 1).
第３図で発光素子（７）の中心と光学レンズ（９）の中
心を結ぶ直線と、発光素子（７）を固定したステム（2
0）の取付けられたフランジ（８）の法線のなす角θ
が、例えば０゜＜θ≦10゜になるように光学レンズ
（９）を取付けたフランジ（10）をフランジ（８）上に
固定する。この配置により、発光素子（７）から出力さ
れた光は光学レンズ（９）によって集光され、その集光
される方向はフランジ（８）の法線に対して角度をも
ち、集光する位置は発光素子（７）の中心と光学レンズ
（９）の中心を結んだ直線を含む平面上である。In FIG. 3, a straight line connecting the center of the light emitting element (7) and the center of the optical lens (9) and the stem (2) to which the light emitting element (7) is fixed.
Angle θ formed by the normal to the flange (8) attached to (0)
However, the flange (10) with the optical lens (9) is fixed on the flange (8) so that, for example, 0 ° <θ ≦ 10 °. With this arrangement, the light emitted from the light emitting element (7) is condensed by the optical lens (9), and the condensing direction has an angle with respect to the normal line of the flange (8), and the condensing position. Is on a plane including a straight line connecting the center of the light emitting element (7) and the center of the optical lens (9).
次に発光素子（７）の中心と光学レンズ（９）の中心と
を結ぶ直線と光ファイバ（11）端面の長直径の光ファイ
バ（11）先端部方向となす角が、光ファイバ（11）の中
心軸方向と長直径の光ファイバ（11）先端部方向となす
角より小さくなるようにフランジ（12）をフランジ
（８）上に固定する。例えば発光素子（７）の中心と光
学レンズ（９）の中心を結んだ直線を含む平面に光ファ
イバ（11）端面の長直径を含ませ、その直線とファイバ
（11）端面の法線のなす角を大きい方向に光ファイバ
（11）を垂直に取付けたフランジ（12）をフランジ
（８）上に固定する。この配置で光ファイバ（11）に最
良光入力値を得、光ファイバ（11）端面から発光素子
（７）への戻り光を減少させることができる。さらに光
ファイバ（11）軸はフランジ（８）の法線に平行であ
り、フランジ（12）をフランジ（８）に安定した固定を
することができる。Next, the angle formed between the straight line connecting the center of the light emitting element (7) and the center of the optical lens (9) and the direction of the tip of the optical fiber (11) having the long diameter of the end face of the optical fiber (11) is the optical fiber (11). The flange (12) is fixed on the flange (8) so as to be smaller than the angle between the central axis direction and the direction of the tip of the optical fiber (11) having the long diameter. For example, a plane including a straight line connecting the center of the light emitting element (7) and the center of the optical lens (9) includes the long diameter of the end face of the optical fiber (11), and the straight line and the normal line of the end face of the fiber (11) form A flange (12) having an optical fiber (11) mounted vertically in a direction with a large angle is fixed onto the flange (8). With this arrangement, the best optical input value can be obtained in the optical fiber (11), and the return light from the end face of the optical fiber (11) to the light emitting element (7) can be reduced. Further, the axis of the optical fiber (11) is parallel to the normal line of the flange (8), so that the flange (12) can be stably fixed to the flange (8).
尚、本発明は上記実施例に限定されるものではない。例
えば光学レンズ（９）を球レンズ以外の集光レンズを用
いても可能である。要するに本発明はその要旨を逸脱し
ない範囲で種々変形して実施することができる。The present invention is not limited to the above embodiment. For example, a condensing lens other than a spherical lens can be used as the optical lens (9). In short, the present invention can be variously modified and implemented without departing from the scope of the invention.
第１図，第２図は従来技術を示す図、第３図は本発明の
一実施例を示す図、第４図は光ファイバへの入射光と光
ファイバ軸との関係を示す図、第５図は光ファイバへの
入射光と光ファイバ軸とがなす角度と、光ファイバ内光
入力値及び入射光方向へ戻る光ファイバ端面での反射光
強度の関係を示す図である。 １……発光素子、２……光学レンズ、３……斜研磨ファ
イバ、４……発光素子、５……光学レンズ、６……斜研
磨ファイバ、７……発光素子、８……発光素子を固定し
たステムを取付けたフランジ、９……光学レンズ、10…
…光学レンズを取付けたフランジ、11……斜研磨光ファ
イバ、12……光ファイバを取付けたフランジ、13……入
射光方向、14……光ファイバ軸方向、20……ステム。1 and 2 are views showing a conventional technique, FIG. 3 is a view showing an embodiment of the present invention, and FIG. 4 is a view showing a relationship between incident light to an optical fiber and an optical fiber axis. FIG. 5 is a diagram showing the relationship between the angle formed by the incident light to the optical fiber and the optical fiber axis, the optical input value in the optical fiber, and the reflected light intensity at the end face of the optical fiber returning in the incident light direction. 1 ... Light emitting element, 2 ... Optical lens, 3 ... Oblique polishing fiber, 4 ... Light emitting element, 5 ... Optical lens, 6 ... Oblique polishing fiber, 7 ... Light emitting element, 8 ... Light emitting element Flange with fixed stem attached, 9 ... Optical lens, 10 ...
… Flange with optical lens, 11… Oblique-polished optical fiber, 12… Flange with optical fiber, 13… Incident light direction, 14… Optical fiber axial direction, 20… Stem.
Claims (3)
１のフランジと、光学レンズが配置された第２のフラン
ジと、斜研磨光ファイバが垂直に固定された第３のフラ
ンジとを具備し、前記第１のフランジの法線と、前記発
光素子中心と前記光学レンズ中心を結ぶ直線とが互いに
交差する如く前記第２のフランジが前記第１のフランジ
に固定され、前記発光素子中心と前記光学レンズ中心と
を結ぶ直線と、前記光ファイバ端面の長直径の前記光フ
ァイバ先端部方向とのなす角が、前記光ファイバの中心
軸方向と前記長直径の光ファイバ先端方向とのなす角よ
り小さくなる如く前記第３のフランジが第１のフランジ
に固定されたことを特徴とする光学素子パッケージ。1. A first flange provided with a stem to which a light emitting element is fixed, a second flange provided with an optical lens, and a third flange having an obliquely polished optical fiber fixed vertically. The second flange is fixed to the first flange so that a normal line of the first flange and a straight line connecting the center of the light emitting element and the center of the optical lens intersect each other, and the second flange is fixed to the center of the light emitting element. The angle formed by the straight line connecting the center of the optical lens and the direction of the optical fiber tip of the long diameter of the end face of the optical fiber is the angle formed by the central axis direction of the optical fiber and the direction of the optical fiber tip of the long diameter. An optical element package, wherein the third flange is fixed to the first flange so as to be smaller.
する特許請求の範囲第１項記載の光学素子パッケージ。2. The optical element package according to claim 1, wherein the optical lens is a spherical lens.
直線と前記発光素子を固定したステムの取り付けられた
フランジの法線のなす角度θは、０゜＜θ≦10゜である
ことを特徴とする特許請求の範囲第１項記載の光学素子
パッケージ。3. An angle θ formed by a straight line connecting a center of the light emitting element and the center of the optical lens and a normal line of a flange to which a stem fixing the light emitting element is attached is 0 ° <θ ≦ 10 °. The optical element package according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2154284A JPH0664218B2 (en) | 1984-02-10 | 1984-02-10 | Optical element package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2154284A JPH0664218B2 (en) | 1984-02-10 | 1984-02-10 | Optical element package |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60166906A JPS60166906A (en) | 1985-08-30 |
| JPH0664218B2 true JPH0664218B2 (en) | 1994-08-22 |
Family
ID=12057863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2154284A Expired - Lifetime JPH0664218B2 (en) | 1984-02-10 | 1984-02-10 | Optical element package |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0664218B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19704341A1 (en) * | 1996-02-05 | 1997-08-07 | Alps Electric Co Ltd | Light emitting module |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60191211A (en) * | 1984-03-12 | 1985-09-28 | Nippon Sheet Glass Co Ltd | Optical system for connecting single mode optical fiber and light source |
| JPS6263709U (en) * | 1985-10-08 | 1987-04-20 | ||
| JPS6452103A (en) * | 1987-05-11 | 1989-02-28 | Hitachi Ltd | Laser diode coupling device and production thereof |
| DE3733019A1 (en) * | 1987-09-30 | 1989-04-13 | Siemens Ag | COUPLING ARRANGEMENT FOR COUPLING LIGHT FROM A SEMICONDUCTOR LASER DIODE INTO A MULTIMODE FIBER |
| JPH07119857B2 (en) * | 1988-03-02 | 1995-12-20 | 富士通株式会社 | Semiconductor laser module and alignment method thereof |
| NL8901821A (en) * | 1988-08-25 | 1990-03-16 | Philips Nv | REFLECTION-LIGHT BULB CONNECTOR PART. |
| JP3324286B2 (en) * | 1994-06-29 | 2002-09-17 | 住友電気工業株式会社 | Analog PD module and method of manufacturing the same |
| WO2003096094A1 (en) * | 2002-05-07 | 2003-11-20 | Matsushita Electric Industrial Co., Ltd. | Light sending and receiving module, method for mounting the module, and light receiving device |
| JP4583438B2 (en) * | 2007-12-28 | 2010-11-17 | 日本オプネクスト株式会社 | Optical receptacle, optical module, and optical module manufacturing method |
| US8132375B2 (en) | 2009-06-25 | 2012-03-13 | Solatube International, Inc. | Skylight cover with prismatic dome and cylinder portions |
| US8083363B2 (en) | 2009-08-20 | 2011-12-27 | Solatube International, Inc. | Daylighting devices and methods with auxiliary lighting fixtures |
| US8958157B2 (en) | 2013-03-14 | 2015-02-17 | Solatube International, Inc. | Daylighting tube segment connection systems and methods |
| US9816675B2 (en) | 2015-03-18 | 2017-11-14 | Solatube International, Inc. | Daylight collectors with diffuse and direct light collection |
| CA2980037C (en) | 2015-03-18 | 2018-08-28 | Solatube International, Inc. | Daylight collectors with diffuse and direct light collection |
-
1984
- 1984-02-10 JP JP2154284A patent/JPH0664218B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19704341A1 (en) * | 1996-02-05 | 1997-08-07 | Alps Electric Co Ltd | Light emitting module |
| DE19704341C2 (en) * | 1996-02-05 | 1999-12-16 | Alps Electric Co Ltd | Light emitting module |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60166906A (en) | 1985-08-30 |
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