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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 36 — Dec. 20, 2008
  • pp: 6889–6894

Synthetic quadrature phase detector/demodulator for Fourier transform spectrometers

Joel Campbell  »View Author Affiliations

Applied Optics, Vol. 47, Issue 36, pp. 6889-6894 (2008)

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A method is developed to demodulate (velocity correct) Fourier transform spectrometer data that are taken with an analog to digital converter that digitizes equally spaced in time. This method makes it possible to use simple low-cost, high-resolution audio digitizers to record high-quality data without the need for an event timer or quadrature laser hardware and makes it possible to use a metrology laser of any wavelength. The reduced parts count and simple implementation make it an attractive alternative in space-based applications when compared to previous methods such as the Brault algorithm.

© 2008 Optical Society of America

OCIS Codes
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(280.4991) Remote sensing and sensors : Passive remote sensing

ToC Category:

Original Manuscript: August 6, 2008
Revised Manuscript: October 4, 2008
Manuscript Accepted: November 7, 2008
Published: December 19, 2008

Joel Campbell, "Synthetic quadrature phase detector/demodulator for Fourier transform spectrometers," Appl. Opt. 47, 6889-6894 (2008)

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