JPH02253208A - Photodetector coupler - Google Patents
Photodetector couplerInfo
- Publication number
- JPH02253208A JPH02253208A JP7547289A JP7547289A JPH02253208A JP H02253208 A JPH02253208 A JP H02253208A JP 7547289 A JP7547289 A JP 7547289A JP 7547289 A JP7547289 A JP 7547289A JP H02253208 A JPH02253208 A JP H02253208A
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- optical fiber
- light receiving
- coupler
- 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
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は光ファイバの端部から出射された光を受光素
子の受光部に入射する受光素子結合器に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a light-receiving element coupler that inputs light emitted from an end of an optical fiber into a light-receiving portion of a light-receiving element.
第３図は例えば文献（ＮＥＣ技報、 ３４． ｓｌ、
１９８１）に示された従来の受光素子結合器の断面図で
ある。図において（１）は光ファイバ（２）の端部と受
光素子（３）を固定して収納する容器、（２）はこの容
器内に也
臨んで支持さ鹸た端部（２ａ）と光を伝搬するコア部（
２ｂ）をもつ光ファイバ、（３）は板状の基部（３ａ）
とその基部の特定の表面に予め形成された面状の受光部
（３ｂ）をもち、その受光部が光ファイバ（２）の端部
（２ａ）の延在方向と直交するように容器（１）内に配
された受光素子である。Figure 3 is based on, for example, the literature (NEC Technical Report, 34. sl,
1981) is a cross-sectional view of a conventional photodetector coupler shown in 1981). In the figure, (1) is a container in which the end of the optical fiber (2) and the light-receiving element (3) are fixedly stored, and (2) is the end (2a) and the light receiving element that are supported by facing inside this container. The core part (
2b), (3) is a plate-shaped base (3a)
The container (1) has a planar light receiving part (3b) formed in advance on a specific surface of its base, and the light receiving part is perpendicular to the extending direction of the end (2a) of the optical fiber (2). ) is a light-receiving element placed within.
上記従来例の受光素子結合器は、容器（１）内で光ファ
イバ（２）の端部（２ａ）と受光素子（３）の受光部（
３ｈ）を互いに直交する位置関係に設けて、光ファイバ
（２）の端部（２ａ）から出射された光を真っ直ぐな進
行方間に沿って受光素子（３）の受光部（３ａ）に入射
している。The above-mentioned conventional light receiving element coupler combines the end (2a) of the optical fiber (2) and the light receiving part (3) of the light receiving element (3) in the container (1).
3h) are provided in a positional relationship perpendicular to each other, and the light emitted from the end (2a) of the optical fiber (2) is incident on the light receiving part (3a) of the light receiving element (3) along a straight traveling direction. are doing.
上記のような従来の受光素子結合器では、光ファイバの
端部から出射された光を受光素子の受光部に入射するた
め容器内で光ファイバの端部と受光素子の受光部を直交
させているからムダな空間を生じる。また容器内で光フ
ァイバの端部を折り曲げて受光素子の受光部と直交させ
ようとしても余計な空間を取るなどの問題点があった。In the conventional photodetector coupler as described above, in order to input the light emitted from the end of the optical fiber into the light receiving part of the light receiving element, the end of the optical fiber and the light receiving part of the light receiving element are made perpendicular to each other inside the container. This creates wasted space. Furthermore, even if an attempt is made to bend the end of the optical fiber within the container so that it is perpendicular to the light receiving section of the light receiving element, there is a problem in that it takes up unnecessary space.
この発明はムダな空間や余計な空間を必要としないコン
パクトな受光素子結合器を得ることを目的としている。The object of the present invention is to obtain a compact light-receiving element coupler that does not require wasteful or extra space.
上記目的を達成するためこの発明の受光素子結合器は、
容器の内部に臨むように光ファイバの端部を支持し、光
ファイバの端部の延在方向に沿うように受光素子の受光
部を配し、光ファイＪｚの端部と受光素子の受光部との
間に屈曲した光路を形成する手段を設けたものである。In order to achieve the above object, the photodetector coupler of the present invention has the following features:
The end of the optical fiber is supported so as to face the inside of the container, the light receiving part of the light receiving element is arranged along the extending direction of the end of the optical fiber, and the end of the optical fiber Jz and the light receiving part of the light receiving element are supported. A means for forming a curved optical path between the two is provided.
上記のように構成した受光素子結合器は、容器内で光フ
ァイバの端部と受光素子の受光部との間に屈折または反
射手段を設けて、光ファイバの端部から出射された光を
屈折または反射した進行方向に沿って受光素子の受光部
に入射している。The light-receiving element coupler configured as described above refracts the light emitted from the end of the optical fiber by providing refraction or reflection means between the end of the optical fiber and the light-receiving part of the light-receiving element within the container. Alternatively, the light is incident on the light receiving portion of the light receiving element along the reflected traveling direction.
第１図はこの発明の一実施例を示す受光素子結合器の断
面図である。図において（１）と（２）は上記従来例を
示す第３図の（１）と（２）に対応する。（３）は透光
性部材の板状の基部（３ａ）とその基部の特定表面に予
め形成された面状の受光部（３ｂ）をもち。FIG. 1 is a sectional view of a light receiving element coupler showing an embodiment of the present invention. In the figure, (1) and (2) correspond to (1) and (2) in FIG. 3, which shows the above-mentioned conventional example. (3) has a plate-like base (3a) of a translucent member and a planar light-receiving portion (3b) formed in advance on a specific surface of the base.
その受光部を光ファイバ（２）の端部（２ａ）の延在方
向に沿うように容器（１）内に配された受光素Ｌ（４）
はこの受光素子の基部（３ａ）で受光部（３ｂ）の反対
側面ト先ファイバ（２）の端部（２ａ）の対向側面との
角部をテーパ状に切断して設けた屈折手段である。A light-receiving element L (4) arranged in the container (1) so that its light-receiving part is along the extending direction of the end (2a) of the optical fiber (2).
is a refraction means provided by tapering the corner of the base (3a) of the light-receiving element from the opposite side of the light-receiving part (3b) to the opposite side of the end (2a) of the fiber (2). .
上記実施例の受光素子結合器は、容器（１）内で光ファ
イバ（２）の端部（２ａ）の延在方向に対向して受光素
子（３）の基部（３ａ）にテーパ状屈折手段（４）を設
けて、光ファイバ（２）の端部（２ａ）から出射された
光を屈折した進行方向に沿って受光素子（３）の基部（
３ａ）の内部を経て受光部（３ｂ）に入射している。従
って受光素子（３）のコンパクト化が実現できる。The light-receiving element coupler of the above embodiment has a tapered refraction means at the base (3a) of the light-receiving element (3) facing the extending direction of the end (2a) of the optical fiber (2) in the container (1). (4) is provided so that the light emitted from the end (2a) of the optical fiber (2) is refracted at the base (
The light enters the light receiving section (3b) through the interior of the light receiving section (3a). Therefore, the light receiving element (3) can be made more compact.
また基部の一部をテーパ状に形成する手段はプリズムや
レンズよりも容易に製作できる効果がある。Further, the means of forming a part of the base into a tapered shape has the advantage that it can be manufactured more easily than a prism or a lens.
この場合の屈折手段（４）は、第１図からも明らかなよ
うに光ファイバ（２）の端部（２ａ）と受光素子（３）
の受光部（３ｂ）との間て屈曲した光路を形成する手段
を提供している。As is clear from FIG. 1, the refracting means (4) in this case consists of the end (2a) of the optical fiber (2) and the light receiving element (3).
This provides means for forming a curved optical path between the light receiving section (3b) and the light receiving section (3b).
なお、上記実施例でテーパ状の屈折手段（４）を用いる
代わりに、受光素子（３）の基部（３ａ）で受光部（３
ｂ）の反対側面と光ファイバ（２）の端部（２ａ）の反
Ｕ側面との角部をテーパ状に切断して設けた反射手段に
より、容器（１）内で光ファイバ（２）の端部（２ａ）
から出射された光を受光素子（３）の基部（３ａ）の内
部に直進した後反射した進行方向に沿って受光部（３ｂ
）に入射できることはいうまでもない。この場合の反射
手段は、上記実施例の屈折手段（４）と同様に屈曲光路
形成手段として機能する。In addition, instead of using the tapered refraction means (4) in the above embodiment, the light receiving portion (3) is formed at the base (3a) of the light receiving element (3).
b) and the opposite U side of the end (2a) of the optical fiber (2) are cut into a tapered shape. End (2a)
The light emitted from the light-receiving element (3) travels straight into the base (3a) of the light-receiving element (3), and then is reflected along the traveling direction to the light-receiving part (3b).
) of course. The reflecting means in this case functions as a bending optical path forming means like the refracting means (4) of the above embodiment.
第２図はこの発明の他の実施例を示す断面図である。図
において（１）、 （２）、 （３ａ）、 （３ｂ）、
（４）は上記実施例を示す第１図に対応する。（３ｃ
）は基部（３ａ）の特定の表面に予め形成された面状の
電子回路部。FIG. 2 is a sectional view showing another embodiment of the invention. In the figure (1), (2), (3a), (3b),
(4) corresponds to FIG. 1 showing the above embodiment. (3c
) is a planar electronic circuit section formed in advance on a specific surface of the base (3a).
（３１）は基部（３ａ）と受光部（３ｂ）と電子回路部
（３ｃ）をもち、その受光部（３ｂ）を光ファイバ（２
）の端部（２ａ）この他の実施例は、上記実施例の構成
と基本的に同一であり、受光部（３ｂ）と同一基部（３
ａ）面に形成されている電子回路部（３ｃ）だけが違う
ので、受光素子（３）に適用した上記実施例と同じ効果
が得られるだけでなく、より大きい素子面積の光電子集
積回路素事Ｗ適用した場合、省空間の効果はよ４り大き
くなる。(31) has a base (3a), a light receiving part (3b) and an electronic circuit part (3c), and the light receiving part (3b) is connected to an optical fiber (2).
) end (2a) This other embodiment is basically the same as the configuration of the above embodiment, and has the same base (3b) as the light receiving part (3b).
Since only the electronic circuit section (3c) formed on the surface a) is different, not only can the same effect as the above embodiment applied to the light receiving element (3) be obtained, but also an optoelectronic integrated circuit element with a larger element area can be obtained. When W is applied, the space saving effect becomes even greater.
この発明は以上説明したように構成されており。 This invention is constructed as described above.
光ファイバの端部から出射された光を受光素子の受光部
に入射するため容器内で光ファイバの端部の延在方向に
沿うように受光素子の受光部を配しているから、ムダな
空間−を生じない。従って受光素子結合器をコンパクト
に形成できる効果がある。In order to input the light emitted from the end of the optical fiber into the light-receiving part of the light-receiving element, the light-receiving part of the light-receiving element is arranged along the extending direction of the end of the optical fiber inside the container, so there is no waste. Does not create space. Therefore, there is an effect that the light receiving element coupler can be formed compactly.
第１図はこの発明の一実施例を示す受光素子結合器の断
面図、第２図はこの発明の他の実施例を示す受光素子結
合器の断面図、第３図は従来例を示す受光素子結合器の
断面図である。
図において（１）は容器、（２）は光ファイバ、 （２
ａ）は光ファイバの端部、 （２ｂ）（ｆ光ファイバの
コア部（３）は受光素子、 （３ａ）は受光素子の基部
、 （３ｂ）は受光素子の受光部、（４）は屈折手段。
なお図中、同一符号は同一または相当部分を示す。FIG. 1 is a sectional view of a photodetector coupler showing an embodiment of the present invention, FIG. 2 is a sectional view of a photodetector coupler showing another embodiment of the invention, and FIG. 3 is a photodetector coupler showing a conventional example. It is a sectional view of an element coupler. In the figure, (1) is the container, (2) is the optical fiber, (2
a) is the end of the optical fiber, (2b) (f) the core part (3) of the optical fiber is the light receiving element, (3a) is the base of the light receiving element, (3b) is the light receiving part of the light receiving element, (4) is the refraction Means. In the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
光ファイバ、この光ファイバの端部の延在方向に沿うよ
うに前記容器内に配設された基部と受光部をもつ受光素
子、前記光ファイバの端部と前記受光素子の受光部との
間で屈曲した光路を形成する屈曲光路形成手段を備えた
受光素子結合器。A container, an optical fiber whose end is supported so as to face the inside of the container, and a light receiving element having a base and a light receiving portion disposed inside the container along the direction in which the end of the optical fiber extends. . A light-receiving element coupler comprising a bent optical path forming means for forming a bent optical path between an end of the optical fiber and a light-receiving part of the light-receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1075472A JP2521349B2 (en) | 1989-03-28 | 1989-03-28 | Infrared receiver coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1075472A JP2521349B2 (en) | 1989-03-28 | 1989-03-28 | Infrared receiver coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02253208A true JPH02253208A (en) | 1990-10-12 |
| JP2521349B2 JP2521349B2 (en) | 1996-08-07 |
Family
ID=13577282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1075472A Expired - Lifetime JP2521349B2 (en) | 1989-03-28 | 1989-03-28 | Infrared receiver coupling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521349B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758115A (en) * | 1980-09-26 | 1982-04-07 | Toshiba Corp | Photocoupler |
| JPS6167008A (en) * | 1984-09-06 | 1986-04-07 | エイディシー・テレコミュニケーションズ・インコーポレーテッド | Optical fiber coupler having total reflection inner surface |
-
1989
- 1989-03-28 JP JP1075472A patent/JP2521349B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5758115A (en) * | 1980-09-26 | 1982-04-07 | Toshiba Corp | Photocoupler |
| JPS6167008A (en) * | 1984-09-06 | 1986-04-07 | エイディシー・テレコミュニケーションズ・インコーポレーテッド | Optical fiber coupler having total reflection inner surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2521349B2 (en) | 1996-08-07 |
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