JPH0481104U - - Google Patents
Info
- Publication number
- JPH0481104U JPH0481104U JP12414090U JP12414090U JPH0481104U JP H0481104 U JPH0481104 U JP H0481104U JP 12414090 U JP12414090 U JP 12414090U JP 12414090 U JP12414090 U JP 12414090U JP H0481104 U JPH0481104 U JP H0481104U
- Authority
- JP
- Japan
- Prior art keywords
- port
- cladding layer
- transmission module
- bidirectional transmission
- ports extending
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 5
- 230000002457 bidirectional effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図ａは本考案の一実施例を示す平面図、第
１図ｂは第１図ａの−線断面図、第２図は従
来例を示す図である。
図中、１０は方向性結合器、１１は第２の方向
性結合器、１２，１３はコア導波路、１４は第１
のポート、１５は第２のポート、１６は第３のポ
ート、１７は第４のポート、１８は反射器、２１
はマツハツエンダ型光合分波器、２３はクラツド
層、２４は基板、２５は単一モード光フアイバ、
２６は受光素子、２７は集光用レンズ、２８は発
光素子である。
FIG. 1a is a plan view showing an embodiment of the present invention, FIG. 1b is a sectional view taken along the line -- in FIG. 1a, and FIG. 2 is a diagram showing a conventional example. In the figure, 10 is a directional coupler, 11 is a second directional coupler, 12 and 13 are core waveguides, and 14 is a first directional coupler.
port, 15 is the second port, 16 is the third port, 17 is the fourth port, 18 is the reflector, 21
23 is a clad layer, 24 is a substrate, 25 is a single mode optical fiber,
26 is a light receiving element, 27 is a condensing lens, and 28 is a light emitting element.
Claims (1)
２本のコア導波路が互いに接近されて成る第１並
びに第２の方向性結合器を形成すると共にこれら
方向性結合器間を長さの異なる２本のコア導波路
で接続し、上記第１の方向性結合器に上記クラツ
ド層の同一端面に延びる第１並びに第２のポート
を形成すると共に上記第２の方向性結合器に上記
クラツド層の上記端面と対向する端面に延びる第
３並びに第４のポートとを形成したマツハツエン
ダ型光合分波器において、上記第１のポートには
単一モード光フアイバが接続され、上記第２のポ
ートには受光素子が接続され、上記第３のポート
には発光素子が接続され、上記第４のポートには
反射器が接続されていることを特徴とする導波路
型双方向伝送モジユール。 ２ 上記反射器が上記クラツド層端面に形成され
た金属膜或いは誘電体多層膜であることを特徴と
する請求項１記載の導波路型双方向伝送モジユー
ル。 ３ 上記発光素子と上記第３のポートとの間に集
光用レンズが設けられていることを特徴とする請
求項１及び２記載の導波路型双方向伝送モジユー
ル。[Claims for Utility Model Registration] 1. Two core waveguides are placed close to each other to form first and second directional couplers in a rectangular cladding layer formed on a substrate, and these directional couplers are formed in a rectangular clad layer formed on a substrate. connecting the directional couplers with two core waveguides of different lengths, forming first and second ports extending to the same end surface of the cladding layer in the first directional coupler, and forming first and second ports extending on the same end surface of the cladding layer; In the Matsuhatsu Enda type optical multiplexer/demultiplexer, the directional coupler is formed with third and fourth ports extending to the end face opposite to the end face of the cladding layer, the first port having a single mode optical fiber. a light receiving element is connected to the second port, a light emitting element is connected to the third port, and a reflector is connected to the fourth port. type bidirectional transmission module. 2. The waveguide type bidirectional transmission module according to claim 1, wherein the reflector is a metal film or a dielectric multilayer film formed on the end face of the cladding layer. 3. The waveguide type bidirectional transmission module according to claim 1, wherein a condensing lens is provided between the light emitting element and the third port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12414090U JPH0481104U (en) | 1990-11-28 | 1990-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12414090U JPH0481104U (en) | 1990-11-28 | 1990-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0481104U true JPH0481104U (en) | 1992-07-15 |
Family
ID=31871802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12414090U Pending JPH0481104U (en) | 1990-11-28 | 1990-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0481104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184934A (en) * | 1995-12-30 | 1997-07-15 | Nec Corp | Optical transmission and reception module |
| JP2008501987A (en) * | 2004-06-04 | 2008-01-24 | エネブレンス インコーポレイテッド | Two-stage optical bidirectional transceiver |
-
1990
- 1990-11-28 JP JP12414090U patent/JPH0481104U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184934A (en) * | 1995-12-30 | 1997-07-15 | Nec Corp | Optical transmission and reception module |
| JP2008501987A (en) * | 2004-06-04 | 2008-01-24 | エネブレンス インコーポレイテッド | Two-stage optical bidirectional transceiver |
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