JPS6428036U - - Google Patents

Info

Publication number
JPS6428036U
JPS6428036U JP1987121426U JP12142687U JPS6428036U JP S6428036 U JPS6428036 U JP S6428036U JP 1987121426 U JP1987121426 U JP 1987121426U JP 12142687 U JP12142687 U JP 12142687U JP S6428036 U JPS6428036 U JP S6428036U
Authority
JP
Japan
Prior art keywords
constant current
avalanche photodiode
current diode
optical receiver
diode
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
JP1987121426U
Other languages
Japanese (ja)
Other versions
JPH0644197Y2 (en
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 filed Critical
Priority to JP1987121426U priority Critical patent/JPH0644197Y2/en
Publication of JPS6428036U publication Critical patent/JPS6428036U/ja
Application granted granted Critical
Publication of JPH0644197Y2 publication Critical patent/JPH0644197Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Optical Communication System (AREA)

Description

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

第１図はこの考案に係る光受信器の一実施例を
示すブロツク図、第２図は定電流ダイオードの端
子間電圧と通過電流との関係を示す図、第３図は
受光パワーをパラメータとしたＡＰＤの特性曲線
と定電流ダイオードの関係により決定されるＡＰ
Ｄの端子間電圧と電流を合わせて示した図、第４
図は従来の光受信器を示すブロツク図である。 １……ＡＰＤバイアス発生回路、２……アバラ
ンシエフオトダイオード（ＡＰＤ）、３……前置
増幅器、４……リミツタ増幅器、５……出力端子
、６および７……定電流ダイオード、８……抵抗
器、９……コンデンサ。 Figure 1 is a block diagram showing an embodiment of the optical receiver according to this invention, Figure 2 is a diagram showing the relationship between the voltage across the terminals of a constant current diode and the passing current, and Figure 3 shows the received light power as a parameter. The AP determined by the relationship between the APD characteristic curve and the constant current diode
Figure 4 shows the voltage and current between the terminals of D.
The figure is a block diagram showing a conventional optical receiver. DESCRIPTION OF SYMBOLS 1... APD bias generation circuit, 2... Avalanche photodiode (APD), 3... Preamplifier, 4... Limiter amplifier, 5... Output terminal, 6 and 7... Constant current diode, 8... Resistor, 9... Capacitor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アバランシエフオトダイオードと、このアバラ
ンシエフオトダイオードに接続された増幅器とに
よつて構成される光受信器において、前記アバラ
ンシエフオトダイオードに第１の定電流ダイオー
ドを介してバイアス電圧を印加するＡＰＤバイア
ス発生回路と、第１の定電流ダイオードに流れる
電流を差し引くように第１の定電流ダイオードに
接続された第２の定電流ダイオードとを備え、こ
の差し引かれた電流が前記アバランシエフオトダ
イオードに流れる直流電流となるように構成して
なる光受信器。 In an optical receiver configured with an avalanche photodiode and an amplifier connected to the avalanche photodiode, an APD bias applies a bias voltage to the avalanche photodiode via a first constant current diode. a generating circuit; and a second constant current diode connected to the first constant current diode so as to subtract the current flowing through the first constant current diode, and the subtracted current flows to the avalanche photodiode. An optical receiver configured to receive direct current.
JP1987121426U 1987-08-10 1987-08-10 Optical receiver Expired - Lifetime JPH0644197Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987121426U JPH0644197Y2 (en) 1987-08-10 1987-08-10 Optical receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987121426U JPH0644197Y2 (en) 1987-08-10 1987-08-10 Optical receiver

Publications (2)

Publication Number Publication Date
JPS6428036U true JPS6428036U (en) 1989-02-17
JPH0644197Y2 JPH0644197Y2 (en) 1994-11-14

Family

ID=31368418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987121426U Expired - Lifetime JPH0644197Y2 (en) 1987-08-10 1987-08-10 Optical receiver

Country Status (1)

Country Link
JP (1) JPH0644197Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838041A (en) * 1981-08-31 1983-03-05 Asahi Optical Co Ltd Apd bias circuit
JPS6286774A (en) * 1985-10-11 1987-04-21 Canon Inc Light emitting circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838041A (en) * 1981-08-31 1983-03-05 Asahi Optical Co Ltd Apd bias circuit
JPS6286774A (en) * 1985-10-11 1987-04-21 Canon Inc Light emitting circuit

Also Published As

Publication number Publication date
JPH0644197Y2 (en) 1994-11-14

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