JPS60166906A - Optical element package - Google Patents

Optical element package

Info

Publication number
JPS60166906A
JPS60166906A JP59021542A JP2154284A JPS60166906A JP S60166906 A JPS60166906 A JP S60166906A JP 59021542 A JP59021542 A JP 59021542A JP 2154284 A JP2154284 A JP 2154284A JP S60166906 A JPS60166906 A JP S60166906A
Authority
JP
Japan
Prior art keywords
flange
emitting element
light emitting
center
optical
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
Application number
JP59021542A
Other languages
Japanese (ja)
Other versions
JPH0664218B2 (en
Inventor
Mitsuko Satou
佐藤　美都子
Takeshi Koseki
健 小関
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP2154284A priority Critical patent/JPH0664218B2/en
Publication of JPS60166906A publication Critical patent/JPS60166906A/en
Publication of JPH0664218B2 publication Critical patent/JPH0664218B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Abstract

PURPOSE:To reduce return light to a light emitting element by constituting an optical element package so that the straight line connecting the center of the light emitting element and the center of an optical lens crosses the normal of a light emitting element fitting flange and is at a specific angle to the long- diameter direction of an optical fiber end surface. CONSTITUTION:A flange 10 is fixed on a flange 8 so that the angle theta between straight line connecting the center of the light emitting element 7 and the center of the optical lens 9 and the normal of the flange 8 is, for example, 0 deg.<=theta<=10 deg., and then a flange 12 is also fixed on the flange 8 so that the angle between said straight line and the direction of the long diameter of the end surface of the optical fiber to its tip is smaller than the angle of the center axis direction of the optical fiber 11 and the direction of the long diameter to the optical fiber tip part. Consequently, the best light input value is obtained for the optical fiber 11 and the return light from the end surface of the optical fiber 11 to the light emitting element 7 is reduced.

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。[Detailed description of the invention] [Technical field to which the invention pertains] TECHNICAL FIELD This invention relates to optical element packages.

〔従来技術とその問題点〕[Prior art and its problems]

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）の法線と発ブＣ素子１１）の発光中心と
光学レンズ１２）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１３）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（３１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であ
るので、元ファイバ（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１３）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、または元
ファイバ（３）の固定されたフランジ（１２）が発光素
子Ｔｌ＋を固定したステム（２の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。Conventionally, as shown in Fig. 1, in this type of package, the normal line of the flange (8) to which the stem (20) to which the light emitting element (1) is fixed is attached, the light emission center of the emitting C element 11), and the optical lens. A package is known in which the optical fibers 13) are fixed on the straight lines connecting the centers of the optical fibers 12). However, since the end face of the optical fiber (31) is usually obliquely polished to reduce the return light to the light emitting element (1), in order to optimize the light input value within the original fiber (3), it is necessary to The optical fiber 13) had to be tilted and fixed as shown in the figure. If it is fixed in this way, the part of the optical fiber (3) coming out of the package will be tilted, or the fixed flange (12) of the original fiber (3) will be attached to the stem (2) to which the light emitting element Tl+ is fixed. There was a problem in that the flange (8) had to be unstablely fixed.

〔発明の目的〕[Purpose of the invention]

本発明は上述した従来バク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
出る部分の元ファイバが１頃くことなく、また、元ファ
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 improves the above-mentioned problems with conventional back cages, reduces the amount of light returning to the light emitting element, prevents the part of the original fiber that exits the package from coming out, and prevents the flange on which the original fiber is fixed. The light-emitting element can be stably fixed to the attached flange of the stem,
It is an object of the present invention to provide an optical element package that provides the best optical input value within an optical fiber.

〔発明の概要〕[Summary of the invention]

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、発元素子壬ツブを固定し
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００〜１０°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元ファイバ端
面の長面径を含ませ、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 in order to reduce light returning to the light emitting element. The flange and the optical lens are arranged so that the angle formed by the straight line connecting them is 00 to 10 degrees, and the long diameter of the end face of the original fiber is included in the plane that includes the straight line connecting the center of the light emitting element and the center of the optical lens. The optical fiber is fixed in the direction that makes the angle between the normal line and the normal line of the fiber end face larger.

〔発明の効果〕〔Effect of the invention〕

これにより、発光素子への戻り元は減少し１元ファイバ
内最良元入力値を得ることができ、パッケージの外に出
る部分の元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 number of sources returning to the light emitting element is reduced, and the best source input value within the single fiber can be obtained.The portion of the source fiber that exits 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 attached.

〔発明の実施例〕[Embodiments of the invention]

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（
１υ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（
■３）の角度が正の角度を持つとき最大元入力値を得、
又反射戻り元が減少するという特徴がある。In the case of obliquely polished optical fiber, the optical fiber (
When the angle of the incident light (13) to 1υ is determined, the incident light (1
The relationship between the angle of 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 direction of the incident light are shown in FIG. That is, the incident light (
■When the angle in 3) has a positive angle, obtain the maximum original input value,
Another feature is that the number of sources of reflection is reduced.

このことより、元ファイバ（１１）へ発光素子（７）か
らの出力元を正の角度をもつように入射させるように発
光素子（７１、光学レンズ（９）、斜研磨光ファイバ（
１１）を配置する。From this, the light emitting element (71), the optical lens (9), the obliquely polished optical fiber (
11).

第３図で＠元素子（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（４
）の我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＋７１から出力さ
れた光は光学レンズ（９１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 Figure 3, there is a straight line connecting the center of the element (7) and the center of the optical lens (9), and the stem (4) to which the light emitting element (7) is fixed.
) is the angle θ formed by the normal of the attached flange (8),
For example, an optical lens (
9) Fix the attached flange (10) on the flange (8). With this arrangement, the light output from the light emitting element +71 is focused by the optical lens (91, the direction in which the light is focused is at an angle to the normal line of the flange (8), and the position where the light is focused is on the light emitting element. The center of (7) and the optical lens (
9) is on a plane containing a straight line connecting the centers of .

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）端面の長面径の光ファ
イバ（１１）先端部方向となす角が、光ファイバ（１υ
の中心軸方向と長面径の光ファイバ（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＋９１の中心を結んだ直線を含む平面に光
ファイバ（１υ端面の長面径を含ませ、その直線とファ
イバー（１１）端面の法線のなす角を大きい方向に元フ
ァイバ（１１）を垂直に取付けたフランジＱ２）をフラ
ンジ（８）上に固定する。この配置で元ファイバ（１り
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（ｌＤ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 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), which is the long diameter of the end face of the optical fiber (11), is
The flange (12) is fixed onto the flange (8) so that the angle is smaller than the angle between the central axis direction of the optical fiber (11) and the direction of the tip end of the optical fiber (11). For example, the long diameter of the end face of the optical fiber (1υ) is included in the plane containing the straight line connecting the center of the light emitting element (7) and the center of the optical lens +91, and the angle between that straight line and the normal to the end face of the fiber (11) is The flange Q2) with the original fiber (11) vertically attached in the larger direction is fixed on the flange (8). With this arrangement, it is possible to obtain the best optical input value for the original fiber (1) and reduce the return light from the end face of the optical fiber (11) to the light emitting element (7). 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。Note that the present invention is not limited to the above embodiments. For example, it is possible to use a condensing lens other than a ball lens as the optical lens (9). In short, the present invention can be implemented with various modifications without departing from the gist thereof.

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

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図は元ファイバへの
入射光と光ファイバ軸とがなす角度と、光ファイバ内元
入力値及び入射光方向へ戻る元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・・・元ファイ
バを覗付けたフランジ、１３・・・入射光方向、１４・
・・元ファイバ軸方向、２０・・・ステム。 代理人弁理士　則　近　憲　佑（ほか１名）第１図 第２図FIGS. 1 and 2 are diagrams showing the prior art, FIG. 3 is a diagram showing an embodiment of the present invention, FIG. 4 is a diagram showing the relationship between light incident on an optical fiber and the optical fiber axis, and FIG. FIG. 5 is a diagram showing the relationship between the angle formed by the incident light on the original fiber and the optical fiber axis, the original input value in the optical fiber, and the intensity of reflected light at the end face of the original fiber returning to the direction of the incident light. DESCRIPTION OF SYMBOLS 1... Light emitting element, 2... Optical lens, 3... Obliquely polished fiber, 4... Light emitting element, 5... Optical lens,
6... Obliquely polished fiber, 7... Light emitting element, 8...
Flange with attached stem to which light emitting element is fixed, 9...
- Optical lens, 10... Flange with optical lens attached, 11... Obliquely polished optical fiber, 12... Flange looking into original fiber, 13... Incident light direction, 14.
...Original fiber axis direction, 20...Stem. Representative Patent Attorney Noriyuki Chika (and 1 other person) Figure 1 Figure 2

Claims (1)

【特許請求の範囲】 １１１発光素子を固定したステムが配置された第１のフ
ランジと、光学レンズが配置された８ｇ２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、前記元ファイバ端面の長石径の前記元ファイ
バ先端部方向とのなす角が、前記元ファイバの中心軸方
向と前記長石径の光フア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＠ （２）光学レンズは球レンズ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）発光素子中心と前記光学レンズ中心を結ぶ直線と
が互いに交差する角度θは、θ°〈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。[Claims] A first flange on which a stem with a 111 light emitting element fixed is arranged, an 8g2 flange on which an optical lens is arranged, and a third flange on which an obliquely polished optical fiber is fixed vertically. The second flange is fixed to the first flange such 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 with each other, and the second flange is fixed to the first flange so that the center of the light emitting element and the center of the optical lens, and the angle formed by the direction of the tip of the original fiber of the feldspar diameter of the end face of the original fiber is the angle formed between the central axis direction of the original fiber and the direction of the tip of the optical fiber of the feldspar diameter of the end face of the original fiber. Optical element package @ characterized in that the third flange is fixed to the first flange so as to be smaller than a corner (2) Claim 1, characterized in that the optical lens is a spherical lens. Optical element package as described. (3) The angle θ at which the straight line connecting the center of the light emitting element and the center of the optical lens intersect with each other is θ°<θ≦10'□
An optical element package according to claim 1, characterized in that:
JP2154284A 1984-02-10 1984-02-10 Optical element package Expired - Lifetime JPH0664218B2 (en)

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 true JPS60166906A (en) 1985-08-30
JPH0664218B2 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 (14)

* Cited by examiner, † Cited by third party
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
US4865409A (en) * 1987-09-30 1989-09-12 Siemens Aktiengesellschaft Coupling arrangement for coupling light of a semiconductor laser diode into a multimode glass fiber
EP0357132A2 (en) * 1988-08-25 1990-03-07 Koninklijke Philips Electronics N.V. Low-reflection ball lens connector part
JPH07119857B2 (en) * 1988-03-02 1995-12-20 富士通株式会社 Semiconductor laser module and alignment method thereof
EP0690323A3 (en) * 1994-06-29 1996-12-27 Sumitomo Electric Industries Analog photodiode module
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
JP2009162942A (en) * 2007-12-28 2009-07-23 Opnext Japan Inc Optical receptacle, optical module, and method for manufacturing optical module
US8083363B2 (en) 2009-08-20 2011-12-27 Solatube International, Inc. Daylighting devices and methods with auxiliary lighting fixtures
US8371078B2 (en) 2009-06-25 2013-02-12 Solatube International Sunlight collection system and apparatus
US8958157B2 (en) 2013-03-14 2015-02-17 Solatube International, Inc. Daylighting tube segment connection systems and methods
US9816676B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection
US9816675B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3355270B2 (en) * 1996-02-05 2002-12-09 アルプス電気株式会社 Light emitting module

Cited By (16)

* Cited by examiner, † Cited by third party
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
JPH058804B2 (en) * 1984-03-12 1993-02-03 Nippon Sheet Glass Co Ltd
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
US4865409A (en) * 1987-09-30 1989-09-12 Siemens Aktiengesellschaft Coupling arrangement for coupling light of a semiconductor laser diode into a multimode glass fiber
JPH07119857B2 (en) * 1988-03-02 1995-12-20 富士通株式会社 Semiconductor laser module and alignment method thereof
EP0357132A2 (en) * 1988-08-25 1990-03-07 Koninklijke Philips Electronics N.V. Low-reflection ball lens connector part
EP0690323A3 (en) * 1994-06-29 1996-12-27 Sumitomo Electric Industries Analog photodiode module
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
JP2009162942A (en) * 2007-12-28 2009-07-23 Opnext Japan Inc Optical receptacle, optical module, and method for manufacturing optical module
US8118498B2 (en) 2007-12-28 2012-02-21 Opnext Japan, Inc. Optical receptacle, optical module, and method of manufacturing an optical module
US8371078B2 (en) 2009-06-25 2013-02-12 Solatube International Sunlight collection system and apparatus
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
US9816676B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection
US9816675B2 (en) 2015-03-18 2017-11-14 Solatube International, Inc. Daylight collectors with diffuse and direct light collection

Also Published As

Publication number Publication date
JPH0664218B2 (en) 1994-08-22

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