JPS5691543A - Optical signal receiver - Google Patents

Optical signal receiver

Info

Publication number
JPS5691543A
JPS5691543A JP16873779A JP16873779A JPS5691543A JP S5691543 A JPS5691543 A JP S5691543A JP 16873779 A JP16873779 A JP 16873779A JP 16873779 A JP16873779 A JP 16873779A JP S5691543 A JPS5691543 A JP S5691543A
Authority
JP
Japan
Prior art keywords
amplifier
terminal
comparator
prescribed
output
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
Application number
JP16873779A
Other languages
Japanese (ja)
Inventor
Sumio Kondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16873779A priority Critical patent/JPS5691543A/en
Publication of JPS5691543A publication Critical patent/JPS5691543A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H04B10/695—Arrangements for optimizing the decision element in the receiver, e.g. by using automatic threshold control

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To simplify the constitution and to improve the stability by using two amplifiers amplifying optical signals, namely one amplifier for amplification ranging from a direct current to a prescribed low frequency and the other for that from the prescribed low frequency to a prescribed high frequency, and then by comparing outputs of those two amplifiers. CONSTITUTION:Amplifier 15 for amplification ranging from a direct current to 10kHz and amplifier 14 for that from 10k-10MHz are provided. The output signal of amplifier 14 is applied to one input terminal 12 of comparator 11 via coupling capacitor 16, and the output signal of amplifier 15 to the other input terminal 13 of comparator 11. The potential of terminal 12 is set to -Va. Comparator 11 makes their comparison and generates its output of high level VH when the voltage of terminal 12 is greater than that of terminal 11 or of low level VL when not. Then, its output waveform is nearly 11 or of low level VL when not. Then, its output waveform is nearly similar to that of the input signal. In addition, no influence of fluctuations of the power voltage and temperature is exerted.
JP16873779A 1979-12-25 1979-12-25 Optical signal receiver Pending JPS5691543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16873779A JPS5691543A (en) 1979-12-25 1979-12-25 Optical signal receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16873779A JPS5691543A (en) 1979-12-25 1979-12-25 Optical signal receiver

Publications (1)

Publication Number Publication Date
JPS5691543A true JPS5691543A (en) 1981-07-24

Family

ID=15873474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16873779A Pending JPS5691543A (en) 1979-12-25 1979-12-25 Optical signal receiver

Country Status (1)

Country Link
JP (1) JPS5691543A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603249A (en) * 1983-06-21 1985-01-09 Matsushita Electric Ind Co Ltd Transmitter-receiver
JPS6057248U (en) * 1983-09-26 1985-04-22 日本電気ホームエレクトロニクス株式会社 Light receiving circuit for optical cable link

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127703A (en) * 1976-04-19 1977-10-26 Fujitsu Ltd Light receiver circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52127703A (en) * 1976-04-19 1977-10-26 Fujitsu Ltd Light receiver circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS603249A (en) * 1983-06-21 1985-01-09 Matsushita Electric Ind Co Ltd Transmitter-receiver
JPS6057248U (en) * 1983-09-26 1985-04-22 日本電気ホームエレクトロニクス株式会社 Light receiving circuit for optical cable link

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