JPS6426801A - Inter-multipoint optical amplification repeating system using bidirectional light transmission system - Google Patents

Inter-multipoint optical amplification repeating system using bidirectional light transmission system

Info

Publication number
JPS6426801A
JPS6426801A JP62182240A JP18224087A JPS6426801A JP S6426801 A JPS6426801 A JP S6426801A JP 62182240 A JP62182240 A JP 62182240A JP 18224087 A JP18224087 A JP 18224087A JP S6426801 A JPS6426801 A JP S6426801A
Authority
JP
Japan
Prior art keywords
signal
point
optical
inter
light
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
JP62182240A
Other languages
Japanese (ja)
Other versions
JP2610133B2 (en
Inventor
Kiyobumi Mochizuki
Noboru Edakawa
Yoshinao Iwamoto
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP62182240A priority Critical patent/JP2610133B2/en
Priority to US07/222,193 priority patent/US4972513A/en
Publication of JPS6426801A publication Critical patent/JPS6426801A/en
Application granted granted Critical
Publication of JP2610133B2 publication Critical patent/JP2610133B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Light Guides In General And Applications Therefor (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To enable an inter-multipoint optical amplification repeating system by using a bidirectional light transmission system capable of making inter- multipoint communication by frequency (or wavelength) assignment. CONSTITUTION:The light signal 2-1 from the point A is coupled to the light signal 2-2 from the point B by an optical coupler 2-3. One of the signal is entered to an optical amplifier 2-4 by an optical demultiplexer 2-7 and is amplified to the signal 2-5 which propagates to the point C. Another signal passes an optical isolator 2-8 and is coupled to the light signal 2-6 from the point C by an optical coupler 2-9. This signal enters the amplifier 2-4, by which the signal is amplified. The signal is further demultiplexed by the coupler 2-3 and is propagated to the point A and the point B. The assigned frequencies (or wavelengths) can be received without mixing at the respective points A, B, C by optical filters or light frequency tuning techniques. The communication between A and C, B and C and A and B is thereby executed.
JP62182240A 1987-07-23 1987-07-23 Multipoint optical amplification repeater using bidirectional optical amplifier Expired - Lifetime JP2610133B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62182240A JP2610133B2 (en) 1987-07-23 1987-07-23 Multipoint optical amplification repeater using bidirectional optical amplifier
US07/222,193 US4972513A (en) 1987-07-23 1988-07-21 Multi-point optical amplification repeating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62182240A JP2610133B2 (en) 1987-07-23 1987-07-23 Multipoint optical amplification repeater using bidirectional optical amplifier

Publications (2)

Publication Number Publication Date
JPS6426801A true JPS6426801A (en) 1989-01-30
JP2610133B2 JP2610133B2 (en) 1997-05-14

Family

ID=16114794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62182240A Expired - Lifetime JP2610133B2 (en) 1987-07-23 1987-07-23 Multipoint optical amplification repeater using bidirectional optical amplifier

Country Status (1)

Country Link
JP (1) JP2610133B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431794A (en) * 1991-04-12 1995-07-11 Nissin Electric Co., Process for forming metal films by plasma sputtering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5431794A (en) * 1991-04-12 1995-07-11 Nissin Electric Co., Process for forming metal films by plasma sputtering

Also Published As

Publication number Publication date
JP2610133B2 (en) 1997-05-14

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