In-fibre Bragg gratings for ultrasonic medical applications

N.E. Fisher, J. Surowiec, D.J. Webb, D.A. Jackson, L. Gavrilov, J.W. Hand, L. Zhang, I. Bennion

Research output: Contribution to journalArticlepeer-review


We investigate the feasibility of using in-fibre Bragg gratings to measure ultrasonic fields for medical applications. Two signal processing schemes for interrogating the gratings are described. Preliminary results for each scheme (one a homodyne approach, the other a heterodyne one) give noise-limited pressure resolutions of 2.2 × 10-4 and 1.8 × 10-2 atm respectively, each within a 1 Hz bandwidth. The second scheme, however, gives a more stable response.

Original languageEnglish
Pages (from-to)1050-1054
Number of pages5
JournalMeasurement Science and Technology
Issue number10
Publication statusPublished - Oct 1997

Bibliographical note



  • in-fibre Bragg gratings
  • ultrasonic fields
  • medical applications


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