JPH04331514A - Optical repeater - Google Patents

Optical repeater

Info

Publication number
JPH04331514A
JPH04331514A JP13030291A JP13030291A JPH04331514A JP H04331514 A JPH04331514 A JP H04331514A JP 13030291 A JP13030291 A JP 13030291A JP 13030291 A JP13030291 A JP 13030291A JP H04331514 A JPH04331514 A JP H04331514A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
optical
connected
output
input
demultiplexer
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
JP13030291A
Other versions
JP2699694B2 (en )
Inventor
Hiroichi Murase
Original Assignee
Nec 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

Links

Abstract

PURPOSE:To transmit inside monitor information to a terminal station with comparatively simple configuration not to require any high-speed circuit. CONSTITUTION:One output of an optical demultiplexer 1 is connected through an optical filter 2 to the input of an optical amplifier 6. The other output of the optical demultiplexer 1 is connected through an optical filter 3 to the input of a photoelectric converter 4. The output of the photoelectric converter 4 is connected to the input of a monitor and control circuit 5. The output of the optical amplifier 6 is connected to the input of an optical demultiplexer 7, one output is connected through an optical filter 9 to one input of an optical demultiplexer 10, and the other output is connected through an optical filter 8 to an optical switch 11. The output of this optical switch 11 is connected to the other input of the optical demultiplexer 10, and a response signal output terminal 12 of the monitor and control circuit 5 is connected to a switch on/off control terminal 13 of the optical switch 11. By splitting and modulating excited light, the inside monitor information can be transmitted to the terminal station without using any high-speed circuit.
JP13030291A 1991-05-07 1991-05-07 Optical repeater Expired - Lifetime JP2699694B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13030291A JP2699694B2 (en) 1991-05-07 1991-05-07 Optical repeater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13030291A JP2699694B2 (en) 1991-05-07 1991-05-07 Optical repeater

Publications (2)

Publication Number Publication Date
JPH04331514A true true JPH04331514A (en) 1992-11-19
JP2699694B2 JP2699694B2 (en) 1998-01-19

Family

ID=15031072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13030291A Expired - Lifetime JP2699694B2 (en) 1991-05-07 1991-05-07 Optical repeater

Country Status (1)

Country Link
JP (1) JP2699694B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522235A (en) * 1991-07-15 1993-01-29 Oki Electric Ind Co Ltd Optical amplifier repeater
US5625481A (en) * 1994-06-21 1997-04-29 Fujitsu Limited Auxiliary-signal transmission system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03214936A (en) * 1990-01-19 1991-09-20 Nippon Telegr & Teleph Corp <Ntt> Monitoring signal transfer device for optical repeater
JPH04306928A (en) * 1991-04-03 1992-10-29 Nippon Telegr & Teleph Corp <Ntt> Optical repeater and monitor system for optical transmission line using repeater
JPH04314223A (en) * 1991-04-12 1992-11-05 Nippon Telegr & Teleph Corp <Ntt> Relay transmission line
JPH04326823A (en) * 1991-04-26 1992-11-16 Oki Electric Ind Co Ltd System for monitoring optical amplifier repeater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03214936A (en) * 1990-01-19 1991-09-20 Nippon Telegr & Teleph Corp <Ntt> Monitoring signal transfer device for optical repeater
JPH04306928A (en) * 1991-04-03 1992-10-29 Nippon Telegr & Teleph Corp <Ntt> Optical repeater and monitor system for optical transmission line using repeater
JPH04314223A (en) * 1991-04-12 1992-11-05 Nippon Telegr & Teleph Corp <Ntt> Relay transmission line
JPH04326823A (en) * 1991-04-26 1992-11-16 Oki Electric Ind Co Ltd System for monitoring optical amplifier repeater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522235A (en) * 1991-07-15 1993-01-29 Oki Electric Ind Co Ltd Optical amplifier repeater
US5625481A (en) * 1994-06-21 1997-04-29 Fujitsu Limited Auxiliary-signal transmission system
US5798857A (en) * 1994-06-21 1998-08-25 Fujitsu Limited Auxiliary-signal transmission system
US5841558A (en) * 1994-06-21 1998-11-24 Fujitsu Limited Auxiliary-signal transmission system

Also Published As

Publication number Publication date Type
JP2699694B2 (en) 1998-01-19 grant

Similar Documents

Publication Publication Date Title
JPS6112138A (en) Optical fiber data link
JPS5890607A (en) Coupling structure of optical circuit
JPH02281821A (en) Load control system
JPS58120330A (en) Optical communication circuit device
JPS55123248A (en) Light loop data transmission system
JPS58175330A (en) Transmitting mechanism of electric signal
JPS58187912A (en) Series-parallel converting device of optical signal
JPS6235322A (en) Optical circuit device
JPS55105453A (en) Optical wavelength multiple repeating system
JPS56112143A (en) Equipment for receiving wave length multiple optical signal
JPS60229433A (en) Two-way optical communication system
JPH03258038A (en) Monitor system for optical fiber relay transmission line
JPS6145699A (en) Optical remote multiplex transmission system of subscriber line
JPS57104339A (en) Optical communication network
JPS5754445A (en) Power supply remote control system in optical transmitter
JPS5857835A (en) Optical communication system
JPS5873251A (en) Optical reception circuit
JPH01130638A (en) Frequency multiplex optical two-way transmitter
JPH04340933A (en) Optical amplifier
JPS57190436A (en) Adjusting method for optical transmitting line
JPS55147844A (en) Electric power source controlling system of optical communication system
DE2811696A1 (en) Electronic switching matrix for telephone or data signals - has two pairs of MOSFETs separately controlled by opto-electronic devices
JPS57106247A (en) Analogue optical communication device
DE3522130A1 (en) Line equipment for transmitting an additional channel on a data transmission path
JPS6076831A (en) Loop type optical transmission system