JPS55143853A - Communication network by light wave length division multiplex transmission - Google Patents

Communication network by light wave length division multiplex transmission

Info

Publication number
JPS55143853A
JPS55143853A JP5147279A JP5147279A JPS55143853A JP S55143853 A JPS55143853 A JP S55143853A JP 5147279 A JP5147279 A JP 5147279A JP 5147279 A JP5147279 A JP 5147279A JP S55143853 A JPS55143853 A JP S55143853A
Authority
JP
Japan
Prior art keywords
wave length
terminal
light
wave
transmission line
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
JP5147279A
Other languages
Japanese (ja)
Other versions
JPS5938777B2 (en
Inventor
Kiyoshi Nosu
Tetsuya Miki
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP54051472A priority Critical patent/JPS5938777B2/en
Publication of JPS55143853A publication Critical patent/JPS55143853A/en
Publication of JPS5938777B2 publication Critical patent/JPS5938777B2/en
Expired 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

Landscapes

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

Abstract

PURPOSE:To obtain a communication network constituted with cheap and stable terminal accessories, by consituting the accessory of the connection part between each terminal and the optical fiber by a spectroscope having wave length selectivity and by assigning one of different wave length to each terminal. CONSTITUTION:Light waves of wave length lambda1, lambda2 and lambda3 are assigned to terminals 110-130 respectively, and three light waves are propagated through ring light transmission line 10 clockwise. In terminal accessory 51 of terminal 110, only the light wave of wave length lambda1 is input to terminal control unit 61, and light waves of other wave length are propagated through light transmission line 10 as they are. The signal from terminal 110 to center 50 is carried by the light wave of wave length lambda1 from unit 61 and is transmitted through accessory 51 in transmission line 10. Accessories are constituted by optical fibers 10' and 10'' for transmission line, optical fibers 111 and 112 for terminal, lenses 113-116, and dielectric multilayer film filters 117 and 118, and filters cause only the light wave of one wave length to pass through and reflects light waves of other wave length.
JP54051472A 1979-04-27 1979-04-27 Communication network using optical wavelength division multiplexing transmission Expired JPS5938777B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54051472A JPS5938777B2 (en) 1979-04-27 1979-04-27 Communication network using optical wavelength division multiplexing transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54051472A JPS5938777B2 (en) 1979-04-27 1979-04-27 Communication network using optical wavelength division multiplexing transmission

Publications (2)

Publication Number Publication Date
JPS55143853A true JPS55143853A (en) 1980-11-10
JPS5938777B2 JPS5938777B2 (en) 1984-09-19

Family

ID=12887882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54051472A Expired JPS5938777B2 (en) 1979-04-27 1979-04-27 Communication network using optical wavelength division multiplexing transmission

Country Status (1)

Country Link
JP (1) JPS5938777B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169294A (en) * 1984-06-15 1986-04-09 スタンダ−ド・エレクトリツク・ロ−レンツ・アクチエンゲゼルシヤフト Light communication system in subscriber channel network
JPS6216633A (en) * 1985-07-16 1987-01-24 Toshiba Corp Signal transfer device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62269637A (en) * 1986-05-15 1987-11-24 中原　宏作 Fishing float

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039403A (en) * 1973-07-05 1975-04-11
JPS5290283A (en) * 1976-01-23 1977-07-29 Anritsu Electric Co Ltd Annular multiple wavelength light communication device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039403A (en) * 1973-07-05 1975-04-11
JPS5290283A (en) * 1976-01-23 1977-07-29 Anritsu Electric Co Ltd Annular multiple wavelength light communication device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169294A (en) * 1984-06-15 1986-04-09 スタンダ−ド・エレクトリツク・ロ−レンツ・アクチエンゲゼルシヤフト Light communication system in subscriber channel network
JPS6216633A (en) * 1985-07-16 1987-01-24 Toshiba Corp Signal transfer device

Also Published As

Publication number Publication date
JPS5938777B2 (en) 1984-09-19

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