JPS5662436A - Optical multiplex transmission system - Google Patents

Optical multiplex transmission system

Info

Publication number
JPS5662436A
JPS5662436A JP13959479A JP13959479A JPS5662436A JP S5662436 A JPS5662436 A JP S5662436A JP 13959479 A JP13959479 A JP 13959479A JP 13959479 A JP13959479 A JP 13959479A JP S5662436 A JPS5662436 A JP S5662436A
Authority
JP
Japan
Prior art keywords
signal
optical
reflection
received
distributor
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
JP13959479A
Other languages
Japanese (ja)
Other versions
JPS6316055B2 (en
Inventor
Takeshi Usui
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13959479A priority Critical patent/JPS5662436A/en
Publication of JPS5662436A publication Critical patent/JPS5662436A/en
Publication of JPS6316055B2 publication Critical patent/JPS6316055B2/ja
Granted 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2589—Bidirectional transmission

Abstract

PURPOSE:To prevent the deterioration due to interference, by cancelling the detour interference components from an optical transmitter of the station even if an optical distributor of a simple constitution is used. CONSTITUTION:An optical distributor 31 performs transmission and reception of optical signal. To the signal received at the optical distributor, the reflection signal for the signal transmitted from a transmitter 11 is included. The signal received is fed to an optical receiver 21, and a part of power of the said reflection signal is branched at an optical coupler 41 and it is converted into electric signal at an optical detector 51. Further, by subtracting the signal having the reflection component received at the optical receiver 21 from the reflection signal detected at the photodetector 51, the reception signal rejecting the reflection component of the station can be obtained.
JP13959479A 1979-10-29 1979-10-29 Optical multiplex transmission system Granted JPS5662436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13959479A JPS5662436A (en) 1979-10-29 1979-10-29 Optical multiplex transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13959479A JPS5662436A (en) 1979-10-29 1979-10-29 Optical multiplex transmission system

Publications (2)

Publication Number Publication Date
JPS5662436A true JPS5662436A (en) 1981-05-28
JPS6316055B2 JPS6316055B2 (en) 1988-04-07

Family

ID=15248897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13959479A Granted JPS5662436A (en) 1979-10-29 1979-10-29 Optical multiplex transmission system

Country Status (1)

Country Link
JP (1) JPS5662436A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63129344U (en) * 1987-02-17 1988-08-24
US5390039A (en) * 1990-08-27 1995-02-14 Canon Kabushiki Kaisha Optical network for detecting collisions based on the reflection of a transmitting signal
US6731881B2 (en) 1999-12-01 2004-05-04 Nec Corporation Device for transmitting and receiving optical signals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63129344U (en) * 1987-02-17 1988-08-24
US5390039A (en) * 1990-08-27 1995-02-14 Canon Kabushiki Kaisha Optical network for detecting collisions based on the reflection of a transmitting signal
US6731881B2 (en) 1999-12-01 2004-05-04 Nec Corporation Device for transmitting and receiving optical signals

Also Published As

Publication number Publication date
JPS6316055B2 (en) 1988-04-07

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