Novel polarimetric fibre device for interrogating ‘white-light’ interferometers

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Novel polarimetric fibre device for interrogating ‘white-light’ interferometers

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© The Institution of Electrical Engineers
Published

A novel, in-line, polarimetric fibre interrogator for ‘white-light’ interferometry is described. It consists of two equal lengths of polarisation-maintaining fibre, spliced with their polarisation axes orthogonal. The interferometer path difference is thermally tuned over the free-space equivalent of ±180 μm to allow matching to a remote sensor interferometer.

Inspec keywords: light interferometers; fibre optic sensors; light polarisation

Other keywords: polarimetric fibre device; white light interferometry; inline interrogator; polarisation-maintaining fibre

Subjects: Fibre optic sensors; fibre gyros; Optical interferometry; Fibre optic sensors; Optical variables measurement; Fibre optics

References

    1. 1)
      • J.P. Dakin , C.A. Wade . Compensated polarimetric sensor using polarisation-maintaining fibre in a differential configuration. Electron. Lett. , 51 - 53
    2. 2)
      • B.S. Lee , T.C. Strand . Profilometry with a coherence scanning microscope. Appl. Opt. , 3784 - 3788
    3. 3)
      • Bosselmann, TH., Ulrich, R.: `High accuracy position-sensing with fibre-coupled white-light interferometry', Proc. OFS, 1984, Stuttgart, p. 361–364.
    4. 4)
      • S. Chen , A.J. Rogers , B.T. Meggit . Electronically scanned optical-fibre Young's white-light interferometer. Opt. Lett. , 761 - 763
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