JPS55120237A - Loop system optical communication system - Google Patents

Loop system optical communication system

Info

Publication number
JPS55120237A
JPS55120237A JP2713579A JP2713579A JPS55120237A JP S55120237 A JPS55120237 A JP S55120237A JP 2713579 A JP2713579 A JP 2713579A JP 2713579 A JP2713579 A JP 2713579A JP S55120237 A JPS55120237 A JP S55120237A
Authority
JP
Japan
Prior art keywords
light
loop
circuit path
constitution
assigned
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
JP2713579A
Other languages
Japanese (ja)
Inventor
Tomoo Kokkyo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2713579A priority Critical patent/JPS55120237A/en
Publication of JPS55120237A publication Critical patent/JPS55120237A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/009—Topology aspects
    • H04Q2011/0092—Ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To simplify handling, to improve reliability and also to prevent data from colliding by constituting each station while no active element resides on a circuit path forming a loop, and by allotting transmission light wavelength to each station. CONSTITUTION:Stations S1j (j=1-n) are connected together via glass fiber in a loop; computer C1j is added to each S1j and different transmaission light wavelength is assigned to each S1j. Light branching device 1 and light inserting device 2 provided at the light intake and outlet of S1j are both obtained by bonding two glass fibers by thermal fusing, light delay element 3 is also obtained by varying the length of coiled glass fiber, and light branching device 4 is a filter which removes only the transmission light wavelength, assigned to S1j, from a circuit path. Because of this constitution, S1j is all composed of passive elements, no active element resides on the circuit path forming the loop, and this system is extremely superior in handling and reliability.
JP2713579A 1979-03-08 1979-03-08 Loop system optical communication system Pending JPS55120237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2713579A JPS55120237A (en) 1979-03-08 1979-03-08 Loop system optical communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2713579A JPS55120237A (en) 1979-03-08 1979-03-08 Loop system optical communication system

Publications (1)

Publication Number Publication Date
JPS55120237A true JPS55120237A (en) 1980-09-16

Family

ID=12212601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2713579A Pending JPS55120237A (en) 1979-03-08 1979-03-08 Loop system optical communication system

Country Status (1)

Country Link
JP (1) JPS55120237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02304421A (en) * 1989-05-18 1990-12-18 Oki Electric Ind Co Ltd Optical node

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02304421A (en) * 1989-05-18 1990-12-18 Oki Electric Ind Co Ltd Optical node

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