A precise technique for measurement of optical-fiber hole concentricity in the ferrule of an optical connector

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Description

A precise optical method was developed for measuring the concentricity of a longitudinal hole in a cylinder relative to the outer cylindrical surface. The work was done to provide improved accuracy over existing methods for measuring the concentricity ofan optical fiber relative to the outer ferrule diameter in an optical connector. Fiber concentricity is very important for reliable coupling of high optical power densities from one connectorized fiber cable to another. The technique involves the use of a laser interferometer to measure the passage of the ferrule into and out of a light beam whose attenuated energy is measured simultaneously ... continued below

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36 p.

Creation Information

Klingsporn, P.E. December 1, 1996.

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Description

A precise optical method was developed for measuring the concentricity of a longitudinal hole in a cylinder relative to the outer cylindrical surface. The work was done to provide improved accuracy over existing methods for measuring the concentricity ofan optical fiber relative to the outer ferrule diameter in an optical connector. Fiber concentricity is very important for reliable coupling of high optical power densities from one connectorized fiber cable to another. The technique involves the use of a laser interferometer to measure the passage of the ferrule into and out of a light beam whose attenuated energy is measured simultaneously to high precision. Combined measurements of the passage of a precisely fit pin or fiber in the ferrule hole through the light beam allow the concentricity of the fiber hole to be measured relative to the outer ferrule diameter. Repeatability measurements were made under different experimental arrangements, with both a collimated light beam and a slightly convergent light beam. Depending on the particular arrangement, the standard deviation for concentricity measurement in a given plane of the ferrule ranged from 2.37 microinches to 4.19 microinches.

Physical Description

36 p.

Notes

OSTI as DE97051082

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  • Other Information: PBD: Dec 1996

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  • Other: DE97051082
  • Report No.: KCP--613-5710
  • Grant Number: AC04-76DP00613
  • DOI: 10.2172/435302 | External Link
  • Office of Scientific & Technical Information Report Number: 435302
  • Archival Resource Key: ark:/67531/metadc680440

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • December 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Dec. 3, 2015, 6:07 p.m.

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Klingsporn, P.E. A precise technique for measurement of optical-fiber hole concentricity in the ferrule of an optical connector, report, December 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc680440/: accessed December 15, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.