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Applied Optics

Applied Optics


  • Vol. 42, Iss. 31 — Nov. 1, 2003
  • pp: 6292–6304

Noise-equivalent change in radiance for misalignment noise in a double-sided interferogram

Douglas L. Cohen  »View Author Affiliations

Applied Optics, Vol. 42, Issue 31, pp. 6292-6304 (2003)

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Engineers designing optical alignment servo systems for Michelson interferometers and Fourier-transform infrared spectrometers need to predict the amount of noise expected from the small and randomly varying amounts of misalignment that occur as the servo attempts to maintain alignment while taking data. A formula is derived for the noise-equivalent change in radiance due to this effect and the formula’s accuracy is demonstrated by comparison of its predictions to the errors found in simulated interferometer measurements contaminated by misalignment noise.

© 2003 Optical Society of America

OCIS Codes
(070.2590) Fourier optics and signal processing : ABCD transforms
(070.4790) Fourier optics and signal processing : Spectrum analysis
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(300.6300) Spectroscopy : Spectroscopy, Fourier transforms
(300.6340) Spectroscopy : Spectroscopy, infrared

Original Manuscript: May 12, 2003
Revised Manuscript: August 11, 2003
Published: November 1, 2003

Douglas L. Cohen, "Noise-equivalent change in radiance for misalignment noise in a double-sided interferogram," Appl. Opt. 42, 6292-6304 (2003)

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