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Active Wavelength Demodulation for Bragg Grating Strain Sensors

  • T. Coroy
  • R. M. Measures

Abstract

An active wavelength demodulation system based on an acousto-optic tunable filter has been demonstrated, suitable for use with intracore Bragg grating fiber optic sensors. A wavelength measurement precision of 0.02 nm was achieved for this initial system. Potential for further system improvement is discussed.

Keywords

Lithium Niobate Fiber Optic Sensor Voltage Control Oscillator Narrow Linewidth Wide Tuning Range 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    The conversion factor used is 1.20 pm/µε, from S.M. Melle, A.T. Alavie, S. Karr, T. Coroy, K. Liu and R.M. Measures, “A Bragg grating-tuned fibre laser strain sensor system,” IEEE Photonics Technol. Lett., Vol. 5, pp. 263–266 (1993).CrossRefGoogle Scholar
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    For example, see A. d’Alessandro, D. A. Smith and J. E. Baran, “Polarisationindependent low-power integrated acousto-optic tunable filter/switch using APE/Ti polarisation splitters on lithium niobate,” Electron. Lett., Vol. 29, pp. 1767–9 (1993).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • T. Coroy
    • 1
  • R. M. Measures
    • 1
  1. 1.Institute for Aerospace StudiesUniversity of TorontoDownsviewCanada

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