JPS5342846A - Photo coupling device - Google Patents

Photo coupling device

Info

Publication number
JPS5342846A
JPS5342846A JP11771076A JP11771076A JPS5342846A JP S5342846 A JPS5342846 A JP S5342846A JP 11771076 A JP11771076 A JP 11771076A JP 11771076 A JP11771076 A JP 11771076A JP S5342846 A JPS5342846 A JP S5342846A
Authority
JP
Japan
Prior art keywords
coupling device
photo coupling
reflected light
indident
optical fiber
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
JP11771076A
Other languages
Japanese (ja)
Other versions
JPS579016B2 (en
Inventor
Masamitsu Tokuda
Tsuneo Horiguchi
Shigeo Aoki
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11771076A priority Critical patent/JPS5342846A/en
Publication of JPS5342846A publication Critical patent/JPS5342846A/en
Publication of JPS579016B2 publication Critical patent/JPS579016B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

PURPOSE:To satisfactorily detect the reflected light from the broken point of an optical fiber by removing the reflected light from the indident end surface specified vertical angle.
JP11771076A 1976-09-30 1976-09-30 Photo coupling device Granted JPS5342846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11771076A JPS5342846A (en) 1976-09-30 1976-09-30 Photo coupling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11771076A JPS5342846A (en) 1976-09-30 1976-09-30 Photo coupling device

Publications (2)

Publication Number Publication Date
JPS5342846A true JPS5342846A (en) 1978-04-18
JPS579016B2 JPS579016B2 (en) 1982-02-19

Family

ID=14718379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11771076A Granted JPS5342846A (en) 1976-09-30 1976-09-30 Photo coupling device

Country Status (1)

Country Link
JP (1) JPS5342846A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452245U (en) * 1977-09-19 1979-04-11
JPS5490142U (en) * 1977-12-06 1979-06-26
JPS5491506U (en) * 1977-12-12 1979-06-28
JPS55105206A (en) * 1979-02-05 1980-08-12 Fujitsu Ltd Optical branching and coupling circuit
JPS5621107A (en) * 1979-07-27 1981-02-27 Nec Corp Light isolator coupling device
JPS5745608U (en) * 1980-08-28 1982-03-13
JPS58220111A (en) * 1982-06-16 1983-12-21 Nippon Telegr & Teleph Corp <Ntt> Connecting method of optical fiber
JPS6223007A (en) * 1985-07-22 1987-01-31 クセルト　セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオ−ニ・エツセ・ピ−・ア− Method and apparatus for measuring coupling loss of single mode optical fiber

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5156238A (en) * 1974-11-12 1976-05-17 Nippon Telegraph & Telephone

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5156238A (en) * 1974-11-12 1976-05-17 Nippon Telegraph & Telephone

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5452245U (en) * 1977-09-19 1979-04-11
JPS5490142U (en) * 1977-12-06 1979-06-26
JPS5491506U (en) * 1977-12-12 1979-06-28
JPS55105206A (en) * 1979-02-05 1980-08-12 Fujitsu Ltd Optical branching and coupling circuit
JPS5740490B2 (en) * 1979-02-05 1982-08-27
JPS5621107A (en) * 1979-07-27 1981-02-27 Nec Corp Light isolator coupling device
JPS5745608U (en) * 1980-08-28 1982-03-13
JPS58220111A (en) * 1982-06-16 1983-12-21 Nippon Telegr & Teleph Corp <Ntt> Connecting method of optical fiber
JPS6223007A (en) * 1985-07-22 1987-01-31 クセルト　セントロ・ステユデイ・エ・ラボラトリ・テレコミニカチオ−ニ・エツセ・ピ−・ア− Method and apparatus for measuring coupling loss of single mode optical fiber
US4741615A (en) * 1985-07-22 1988-05-03 Massimo Calzavara Method and device for measuring coupling losses in single mode optical fibers
JPH052963B2 (en) * 1985-07-22 1993-01-13 Kuseruto Chentoro Suteyudei E Lab Terekomyunikatsuiooni Spa

Also Published As

Publication number Publication date
JPS579016B2 (en) 1982-02-19

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