JPS52113759A - Measuring apparatus for optical fiber loss - Google Patents

Measuring apparatus for optical fiber loss

Info

Publication number
JPS52113759A
JPS52113759A JP2996876A JP2996876A JPS52113759A JP S52113759 A JPS52113759 A JP S52113759A JP 2996876 A JP2996876 A JP 2996876A JP 2996876 A JP2996876 A JP 2996876A JP S52113759 A JPS52113759 A JP S52113759A
Authority
JP
Japan
Prior art keywords
optical fiber
fiber loss
measuring apparatus
fluctuation
enable
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
JP2996876A
Other languages
Japanese (ja)
Inventor
Katsuki Tanaka
Seiichi Onoda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2996876A priority Critical patent/JPS52113759A/en
Publication of JPS52113759A publication Critical patent/JPS52113759A/en
Pending 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
    • G01M11/333—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 using modulated input signals
    • G01M11/334—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 using modulated input signals with light chopping means

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To enable the accurate measurement of optical fiber loss free from the error due to fluctuation by receiving the fiber incident light and reference light by the same receiver and synchronously detecting them by a synchronous amplifier which takes a chopping frequency signal as a reference signal.
JP2996876A 1976-03-22 1976-03-22 Measuring apparatus for optical fiber loss Pending JPS52113759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2996876A JPS52113759A (en) 1976-03-22 1976-03-22 Measuring apparatus for optical fiber loss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2996876A JPS52113759A (en) 1976-03-22 1976-03-22 Measuring apparatus for optical fiber loss

Publications (1)

Publication Number Publication Date
JPS52113759A true JPS52113759A (en) 1977-09-24

Family

ID=12290755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2996876A Pending JPS52113759A (en) 1976-03-22 1976-03-22 Measuring apparatus for optical fiber loss

Country Status (1)

Country Link
JP (1) JPS52113759A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63241441A (en) * 1987-03-30 1988-10-06 Anritsu Corp Light pulse tester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63241441A (en) * 1987-03-30 1988-10-06 Anritsu Corp Light pulse tester

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