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Optics Letters

Optics Letters


  • Vol. 22, Iss. 9 — May. 1, 1997
  • pp: 648–650

Simultaneous strain and temperature measurement with long-period gratings

Vikram Bhatia, David Campbell, Richard O. Claus, and Ashish M. Vengsarkar  »View Author Affiliations

Optics Letters, Vol. 22, Issue 9, pp. 648-650 (1997)

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The differential modulation of the attenuation bands in a long-period grating is used for simultaneous sensing of axial strain and temperature. A grating fabricated in a conventional optical fiber is demonstrated for concurrent measurements of strain over a range of 2100 µ∈ and temperature over a range of 125°C, with maximum errors of 58 µ∈ and 1°C, respectively.

© 1997 Optical Society of America

Vikram Bhatia, David Campbell, Richard O. Claus, and Ashish M. Vengsarkar, "Simultaneous strain and temperature measurement with long-period gratings," Opt. Lett. 22, 648-650 (1997)

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