JPS5710103A - Wavelength multiplex link coupler - Google Patents

Wavelength multiplex link coupler

Info

Publication number
JPS5710103A
JPS5710103A JP8408880A JP8408880A JPS5710103A JP S5710103 A JPS5710103 A JP S5710103A JP 8408880 A JP8408880 A JP 8408880A JP 8408880 A JP8408880 A JP 8408880A JP S5710103 A JPS5710103 A JP S5710103A
Authority
JP
Japan
Prior art keywords
signal
wavelength
received
optical fiber
mode
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
JP8408880A
Other languages
Japanese (ja)
Other versions
JPS6139777B2 (en
Inventor
Tetsuo Ogawa
Harushige Ochi
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP8408880A priority Critical patent/JPS5710103A/en
Publication of JPS5710103A publication Critical patent/JPS5710103A/en
Publication of JPS6139777B2 publication Critical patent/JPS6139777B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0287—Protection in WDM systems
    • H04J14/0289—Optical multiplex section protection
    • H04J14/0291—Shared protection at the optical multiplex section (1:1, n:m)
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To provide functions of by-pass mode and loop back mode with one piece of optical fiber by wavelength multiplexing techniques by using two light emitting sources having different wavelengths. CONSTITUTION:In the normal time the light signal of a wavelength lambda1 received from an optical fiber 21 passes through a photoswitch 24 via a connector 23, then through a couplig and branching circuit 25, and is converted to an electric signal by an opoto/electric converter 26. This signal is received in a reception signal terminal 31. The transimission signal emitted from a transmission signal terminal 32 is converted to the light signal of the wavelength lambda1 by an electro/optic converter 28 and is transmitted to the lower stream station by an optical fiber 22 via the circuit 25. In the loop back time when the fiber 21 disconnects, the transmission side is the same as that in the normal time, but the reception side receives the light signal of a wavelength lambda2 from the lower stream station and this signal is received by the terminal 31 via the circuits 25, 27. In the by-pass mode time, said mode is taken by the switch 24 of 2:2.
JP8408880A 1980-06-23 1980-06-23 Wavelength multiplex link coupler Granted JPS5710103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8408880A JPS5710103A (en) 1980-06-23 1980-06-23 Wavelength multiplex link coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8408880A JPS5710103A (en) 1980-06-23 1980-06-23 Wavelength multiplex link coupler

Publications (2)

Publication Number Publication Date
JPS5710103A true JPS5710103A (en) 1982-01-19
JPS6139777B2 JPS6139777B2 (en) 1986-09-05

Family

ID=13820741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8408880A Granted JPS5710103A (en) 1980-06-23 1980-06-23 Wavelength multiplex link coupler

Country Status (1)

Country Link
JP (1) JPS5710103A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950633A (en) * 1982-09-14 1984-03-23 Meidensha Electric Mfg Co Ltd Loop type data highway system by optical communication
JPS62173839U (en) * 1986-04-24 1987-11-05
JPH02137427A (en) * 1988-11-18 1990-05-25 Du Pont Opt Electron Kk Photoelectric connector and optical receptacle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63171584U (en) * 1987-04-28 1988-11-08
JPH0542194Y2 (en) * 1988-03-04 1993-10-25
JPH0628167U (en) * 1992-09-19 1994-04-15 株式会社イナックス Attachment frame attachment structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494206A (en) * 1978-01-10 1979-07-25 Toshiba Corp Photo transmission system of loop shape
JPS5495259A (en) * 1978-01-11 1979-07-27 Matsushita Electric Ind Co Ltd Optical communication apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494206A (en) * 1978-01-10 1979-07-25 Toshiba Corp Photo transmission system of loop shape
JPS5495259A (en) * 1978-01-11 1979-07-27 Matsushita Electric Ind Co Ltd Optical communication apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5950633A (en) * 1982-09-14 1984-03-23 Meidensha Electric Mfg Co Ltd Loop type data highway system by optical communication
JPS62173839U (en) * 1986-04-24 1987-11-05
JPH0445318Y2 (en) * 1986-04-24 1992-10-26
JPH02137427A (en) * 1988-11-18 1990-05-25 Du Pont Opt Electron Kk Photoelectric connector and optical receptacle

Also Published As

Publication number Publication date
JPS6139777B2 (en) 1986-09-05

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