JPS62127116U - - Google Patents
Info
- Publication number
- JPS62127116U JPS62127116U JP1986014900U JP1490086U JPS62127116U JP S62127116 U JPS62127116 U JP S62127116U JP 1986014900 U JP1986014900 U JP 1986014900U JP 1490086 U JP1490086 U JP 1490086U JP S62127116 U JPS62127116 U JP S62127116U
- Authority
- JP
- Japan
- Prior art keywords
- preamplifier
- circuit
- variable capacitance
- capacitance diode
- type amplifier
- 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
- 230000003287 optical effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Optical Communication System (AREA)
- Filters And Equalizers (AREA)
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
ａ，ｂはそれぞれ第１図に使用する周波数特性補
償回路の他の例を示す回路図、第３図ａ，ｂは本
考案による前置増幅器の周波数特性補償の関係を
示し、ａは増幅回路の周波数特性例、ｂは周波数
特性補償回路の特性例をそれぞれ示す線図、第４
図は従来の前置増幅器の回路図である。
１０１……本考案の前置増幅器、１０２……高
伝達インピーダンス形増幅回路、１０３……周波
数特性補償回路、Ｄｅ……可変容量ダイオード、
Ｖｅ，Ｄｅのバイアス回路、１０４，１０５……
周波数特性補償回路。
FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIGS. 2 a and b are circuit diagrams showing other examples of the frequency characteristic compensation circuit used in FIG. 1, and FIGS. 3 a and b are circuit diagrams of the present invention. 4 shows the relationship between the frequency characteristic compensation of the preamplifier according to
The figure is a circuit diagram of a conventional preamplifier. 101... Preamplifier of the present invention, 102... High transfer impedance type amplifier circuit, 103... Frequency characteristic compensation circuit, D e ... Variable capacitance diode,
Bias circuits for Ve and De , 104, 105...
Frequency characteristic compensation circuit.
Claims (1)
信号を増幅する高伝達インピーダンス形増幅器又
は高入力インピーダンス形増幅器より成る前置増
幅器等とを有する光受信回路において、 前記前置増幅器の後段に接続され抵抗及び可変
容量ダイオードの並列回路で構成された周波数特
性補正回路と、前記可変容量ダイオードに直流電
圧を与える回路とを有する前置増幅器。[Claims for Utility Model Registration] In an optical receiving circuit having an element that converts an optical signal into an electrical signal, and a preamplifier or the like consisting of a high transfer impedance type amplifier or a high input impedance type amplifier that amplifies the output signal, A preamplifier comprising: a frequency characteristic correction circuit connected to a subsequent stage of the preamplifier and configured with a parallel circuit of a resistor and a variable capacitance diode; and a circuit for applying a DC voltage to the variable capacitance diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986014900U JPS62127116U (en) | 1986-02-03 | 1986-02-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986014900U JPS62127116U (en) | 1986-02-03 | 1986-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62127116U true JPS62127116U (en) | 1987-08-12 |
Family
ID=30805324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986014900U Pending JPS62127116U (en) | 1986-02-03 | 1986-02-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62127116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014107871A (en) * | 2012-11-27 | 2014-06-09 | Oe Solutions America Inc | High-speed optical receiver implemented using low-speed light receiving element and method for implementing high-speed optical receiver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412242A (en) * | 1977-06-28 | 1979-01-29 | Nec Home Electronics Ltd | Cable equalizer circuit |
-
1986
- 1986-02-03 JP JP1986014900U patent/JPS62127116U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412242A (en) * | 1977-06-28 | 1979-01-29 | Nec Home Electronics Ltd | Cable equalizer circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014107871A (en) * | 2012-11-27 | 2014-06-09 | Oe Solutions America Inc | High-speed optical receiver implemented using low-speed light receiving element and method for implementing high-speed optical receiver |
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