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Optics Letters

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  • Vol. 21, Iss. 22 — Nov. 15, 1996
  • pp: 1869–1871

Polarimetric Er3+-doped fiber distributed-feedback laser sensor for differential pressure and force measurements

J. T. Kringlebotn, W. H. Loh, and R. I. Laming  »View Author Affiliations


Optics Letters, Vol. 21, Issue 22, pp. 1869-1871 (1996)
http://dx.doi.org/10.1364/OL.21.001869


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Abstract

We propose and demonstrate a polarimetric Er3+-doped fiber distributed-feedback laser sensor in which a force applied transversely along the fiber laser induces a birefringence that gives rise to a change in the beat frequency between the two orthogonally polarized laser modes. We measure a sensitivity of ~9.6 GHz/(N/mm), a wide dynamic range with stable two-mode operation for frequency separations up to 50 GHz, and high sensor resolution owing to the narrow beat frequency bandwidth of <10 kHz. The temperature sensitivity is dominated by the temperature dependence of the inherent birefringence, which was measured to be −130 kHz/°C. The sensor permits independent pressure–force and temperature measurements.

© 1996 Optical Society of America

History
Original Manuscript: May 22, 1996
Published: November 15, 1996

Citation
J. T. Kringlebotn, W. H. Loh, and R. I. Laming, "Polarimetric Er3+-doped fiber distributed-feedback laser sensor for differential pressure and force measurements," Opt. Lett. 21, 1869-1871 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-22-1869


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References

  1. G. A. Ball, G. Meltz, W. W. Morey, Opt. Lett. 18, 1976 (1993). [CrossRef] [PubMed]
  2. J. T. Kringlebotn, J.-L. Archambault, L. Reekie, D. N. Payne, Opt. Lett. 19, 2101 (1994). [CrossRef] [PubMed]
  3. J. T. Kringlebotn, “Fiber optic endpumped fiber-laser,”Norwegian patent application 951052 (March20, 1995).
  4. V. J. Mazurczyk, J. L. Zyskind, IEEE Photon. Technol. Lett. 6, 616 (1994). [CrossRef]
  5. S. C. Rashleigh, J. Lightwave Technol. LT-1, 312 (1983). [CrossRef]
  6. W. H. Loh, R. I. Laming, Electron. Lett. 31, 1440 (1995). [CrossRef]

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