JPS6467042A - Optical fiber wiring method - Google Patents

Optical fiber wiring method

Info

Publication number
JPS6467042A
JPS6467042A JP62223729A JP22372987A JPS6467042A JP S6467042 A JPS6467042 A JP S6467042A JP 62223729 A JP62223729 A JP 62223729A JP 22372987 A JP22372987 A JP 22372987A JP S6467042 A JPS6467042 A JP S6467042A
Authority
JP
Japan
Prior art keywords
optical
input terminal
optical star
specific
specific input
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
JP62223729A
Other languages
Japanese (ja)
Inventor
Shinichi Nara
Satoshi Hatano
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 JP62223729A priority Critical patent/JPS6467042A/en
Publication of JPS6467042A publication Critical patent/JPS6467042A/en
Pending legal-status Critical Current

Links

Landscapes

  • Light Guides In General And Applications Therefor (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To shade an optical loop formed between optical star couplers by setting plural optical star couplers whose light power transfer coefficient between a specific input terminal and a specific output terminal is zero or close to zero and connecting these optical star couplers on a round robin system by using optical fibers. CONSTITUTION:Since shading object 40a and 40b are respectively provided between a specific input terminal 20-a and a specific output terminal 30-a and between a specific input terminal 20-b and a specific output terminal 30-b of optical star couplers 10a and 10b, the light power transfer coefficient becomes close to zero. Consequently, even when the two optical star coupler 10a and 10b are connected, the optical loop which ranges like the output 30-a a light amplifier 7a the specific input terminal 20-a the optical star coupler 10b the specific output terminal 30-b a light amplifier 7b the specific input terminal 20-a the optical star coupler 10a is not effected. Thus, since the optical loop is not formed even by the connection of the optical star coupler 10a and 10b, troubles that a signal to circulate in the optical loop interferes with a main signal, and so on, do not occur.
JP62223729A 1987-09-07 1987-09-07 Optical fiber wiring method Pending JPS6467042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62223729A JPS6467042A (en) 1987-09-07 1987-09-07 Optical fiber wiring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62223729A JPS6467042A (en) 1987-09-07 1987-09-07 Optical fiber wiring method

Publications (1)

Publication Number Publication Date
JPS6467042A true JPS6467042A (en) 1989-03-13

Family

ID=16802771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62223729A Pending JPS6467042A (en) 1987-09-07 1987-09-07 Optical fiber wiring method

Country Status (1)

Country Link
JP (1) JPS6467042A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04362604A (en) * 1991-05-31 1992-12-15 Telecommun Lab Directorate General Of Telecommun Ministory Of Commun Optical fiber star type amplifying coupler device and manufacture thereof
EP0518360A2 (en) * 1991-06-14 1992-12-16 Sumitomo Wiring Systems, Ltd. Active optical coupler
JP2006042252A (en) * 2004-07-30 2006-02-09 Kddi Corp Optical transmission system and optical network
JP2007116374A (en) * 2005-10-19 2007-05-10 Mitsubishi Electric Corp Passive optical network system and subscriber terminal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04362604A (en) * 1991-05-31 1992-12-15 Telecommun Lab Directorate General Of Telecommun Ministory Of Commun Optical fiber star type amplifying coupler device and manufacture thereof
EP0518360A2 (en) * 1991-06-14 1992-12-16 Sumitomo Wiring Systems, Ltd. Active optical coupler
EP0518360A3 (en) * 1991-06-14 1994-06-15 Sumitomo Wiring Systems Active optical coupler
JP2006042252A (en) * 2004-07-30 2006-02-09 Kddi Corp Optical transmission system and optical network
JP2007116374A (en) * 2005-10-19 2007-05-10 Mitsubishi Electric Corp Passive optical network system and subscriber terminal

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