JPS56109309A - Measuring method for connection loss of optical cable - Google Patents

Measuring method for connection loss of optical cable

Info

Publication number
JPS56109309A
JPS56109309A JP1145280A JP1145280A JPS56109309A JP S56109309 A JPS56109309 A JP S56109309A JP 1145280 A JP1145280 A JP 1145280A JP 1145280 A JP1145280 A JP 1145280A JP S56109309 A JPS56109309 A JP S56109309A
Authority
JP
Japan
Prior art keywords
optical fiber
temporarily
cable
terminal
light
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
JP1145280A
Other languages
Japanese (ja)
Other versions
JPS6134642B2 (en
Inventor
Masamitsu Tokuda
Koichiro Matsuno
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
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries 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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1145280A priority Critical patent/JPS56109309A/en
Publication of JPS56109309A publication Critical patent/JPS56109309A/en
Publication of JPS6134642B2 publication Critical patent/JPS6134642B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face

Abstract

PURPOSE:To decrease the number of workers and incidental facilities when connecting several optical fiber cables, by permitting light, supplied from a following- cable side, to take U-turn motion to return by temporarily connecting fibers of the endmost preceding cable each other. CONSTITUTION:When a light transmission line is constituted by connecting optical fiber cables 1, 2, and 2', ends of optical fibers 4 and 10 of preceding cable 1 laid at the endmost part are connected temporarily at one terminal. Next, optical fiber 4 and optical fiber 4' of following cable 2 are connected temporarily to connection terminal 6. Light of light source 5 from temporarily connecting terminal 8 of optical fiber 4' is sent into optical fiber 4' and after a light output appearing at connection terminal 6 by taking U-turn motion is measured, optical fibers 10 and 10' are connected together eternally to measure the light output of said terminal 8, thereby calculating the connection loss. Next, temporarily connected part 12 is disconnected and then connected eternally in the same method. This is repeated to make connections, so that the number of workers and the telephone cable length for communication are decreased.
JP1145280A 1980-02-04 1980-02-04 Measuring method for connection loss of optical cable Granted JPS56109309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1145280A JPS56109309A (en) 1980-02-04 1980-02-04 Measuring method for connection loss of optical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1145280A JPS56109309A (en) 1980-02-04 1980-02-04 Measuring method for connection loss of optical cable

Publications (2)

Publication Number Publication Date
JPS56109309A true JPS56109309A (en) 1981-08-29
JPS6134642B2 JPS6134642B2 (en) 1986-08-08

Family

ID=11778484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1145280A Granted JPS56109309A (en) 1980-02-04 1980-02-04 Measuring method for connection loss of optical cable

Country Status (1)

Country Link
JP (1) JPS56109309A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017708A (en) * 1983-07-11 1985-01-29 Fujikura Ltd Connecting method of single mode optical fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017708A (en) * 1983-07-11 1985-01-29 Fujikura Ltd Connecting method of single mode optical fiber

Also Published As

Publication number Publication date
JPS6134642B2 (en) 1986-08-08

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