Phase demodulation in optical fibre Fabry-Perot sensors with inexact phase steps

W. N. MacPherson, Steve Kidd, J. S. Barton, J. D C Jones

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The authors describe an algorithm that extends the usefulness of phase stepping as a method for phase recovery from Fabry-Perot cavities. The use of arbitrary step sizes eliminates the need to operate with predetermined phase steps, thus minimising the effect of phase step errors. Furthermore, an iterative technique that accounts for multiple-reflection cavities is discussed. The algorithm is demonstrated on data obtained from an intrinsic fibre Fabry-Perot heat-flux sensor. © IEE, 1997.

Original languageEnglish
Pages (from-to)130-133
Number of pages4
JournalIEE Proceedings - Optoelectronics
Volume144
Issue number3
Publication statusPublished - 1997

Keywords

  • Fabry-Perot sensors
  • Heat-flux sensors
  • Phase demodulation

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