JPS5961645U - optical receiver - Google Patents
optical receiverInfo
- Publication number
- JPS5961645U JPS5961645U JP1982155074U JP15507482U JPS5961645U JP S5961645 U JPS5961645 U JP S5961645U JP 1982155074 U JP1982155074 U JP 1982155074U JP 15507482 U JP15507482 U JP 15507482U JP S5961645 U JPS5961645 U JP S5961645U
- Authority
- JP
- Japan
- Prior art keywords
- value
- control circuit
- optical receiver
- input light
- avalanche photodiode
- 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
Landscapes
- Optical Communication System (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
第１図はＡＰＤ増倍率とＳ／Ｈの関係を示す特性図、第
２図は本考案による光受信器の一実施例の構成図、第３
図は第２図の光受信器で得られる特性図である。
１・・・ＡＰＤ、３・・・ＡＧＣ増幅器、６・・・比較
器、７・・・ＤＣ／ＤＣコンバータ回路、１０．１１・
・・ダイオード。FIG. 1 is a characteristic diagram showing the relationship between APD multiplication factor and S/H, FIG. 2 is a configuration diagram of an embodiment of the optical receiver according to the present invention, and FIG.
The figure is a characteristic diagram obtained with the optical receiver of FIG. 2. 1... APD, 3... AGC amplifier, 6... Comparator, 7... DC/DC converter circuit, 10.11.
··diode.
Claims (1)
子で電気信号に変換し、その値を基準値と比較器で比較
し、その結果でアバランシェフォトダイオードバイアス
制御回路と電気利得制御回路の動作を制御する光受信器
において、入力光に対応する値が所定値より大きいかど
うかを識別する手段を備え、入力光に対応する値が所定
値より大きい時、上記電気利得制御回路を動作させ、入
力光に対応する値が所定値より小さい時、上記アバラン
シェフォトダイオードバイアス制御回路を動作させるよ
うにしたことを特徴とする光受信器。An optical receiver that converts input light into an electrical signal using a light receiving element consisting of an avalanche photodiode, compares the value with a reference value using a comparator, and uses the results to control the operation of the avalanche photodiode bias control circuit and electrical gain control circuit. The device is equipped with means for identifying whether a value corresponding to the input light is larger than a predetermined value, and when the value corresponding to the input light is larger than the predetermined value, the electric gain control circuit is operated to control the input light. An optical receiver characterized in that the avalanche photodiode bias control circuit is operated when the value is smaller than a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982155074U JPS5961645U (en) | 1982-10-15 | 1982-10-15 | optical receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982155074U JPS5961645U (en) | 1982-10-15 | 1982-10-15 | optical receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5961645U true JPS5961645U (en) | 1984-04-23 |
Family
ID=30342593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982155074U Pending JPS5961645U (en) | 1982-10-15 | 1982-10-15 | optical receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5961645U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5488704A (en) * | 1977-12-26 | 1979-07-14 | Fujitsu Ltd | Automatic gain control system |
-
1982
- 1982-10-15 JP JP1982155074U patent/JPS5961645U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5488704A (en) * | 1977-12-26 | 1979-07-14 | Fujitsu Ltd | Automatic gain control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5961645U (en) | optical receiver | |
| JPS58155153U (en) | optical receiver | |
| JPS5925817U (en) | AGC circuit in optical receiver | |
| JPS5936643U (en) | Infrared receiver | |
| JPS58121419U (en) | Reception level automatic switching circuit | |
| JPS62188844U (en) | ||
| JPS59152849U (en) | Avalanche photodiode bias circuit | |
| JPS59137657U (en) | optical receiver | |
| JPS5922553U (en) | Optical receiver for digital signals | |
| JPS6013416U (en) | light detection device | |
| JPS5956572U (en) | current detection device | |
| JPS5972054U (en) | Signal disconnection detection circuit | |
| JPS58121420U (en) | Reception level automatic adjustment circuit | |
| JPS6043049U (en) | Optical receiver alarm detection device | |
| JPS58161319U (en) | AGC amplifier circuit | |
| JPS5961643U (en) | receiving device | |
| JPS61347U (en) | optical receiver circuit | |
| JPS58169751U (en) | optical receiver circuit | |
| JPS59183675U (en) | Light receiving element level down detection device | |
| JPS58191571U (en) | detector | |
| JPH0320522U (en) | ||
| JPS5850740U (en) | Light receiving circuit | |
| JPS59193046U (en) | Automatic dimming type optical receiver circuit | |
| JPS6121938U (en) | optical inspection equipment | |
| JPS59187222U (en) | Automatic recording level adjustment circuit |