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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 32 — Nov. 10, 2007
  • pp: 7906–7923

White-light interferometry using a channeled spectrum. 2. Calibration methods, numerical and experimental results

Chengxing Zhai, Mark H. Milman, Martin W. Regehr, and Paul K. Best  »View Author Affiliations


Applied Optics, Vol. 46, Issue 32, pp. 7906-7923 (2007)
http://dx.doi.org/10.1364/AO.46.007906


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Abstract

In the companion paper, [Appl. Opt. 46, 5853 (2007)] a highly accurate white light interference model was developed from just a few key parameters characterized in terms of various moments of the source and instrument transmission function. We develop and implement the end-to-endprocess of calibrating these moment parameters together with the differential dispersion of the instrument and applying them to the algorithms developed in the companion paper. The calibrationprocedure developed herein is based on first obtaining the standard monochromatic parameters at the pixel level: wavenumber, phase, intensity, and visibility parameters via a nonlinear least-squaresprocedure that exploits the structure of the model. The pixel level parameters are then combined to obtain the required “global” moment and dispersion parameters. Theprocess is applied to both simulated scenarios of astrometric observations and to data from the microarcsecond metrology testbed (MAM), an interferometer testbed that has played a prominent role in the development of this technology.

© 2007 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(120.5060) Instrumentation, measurement, and metrology : Phase modulation

ToC Category:
Interferometry

History
Original Manuscript: March 9, 2007
Revised Manuscript: September 7, 2007
Manuscript Accepted: September 13, 2007
Published: November 9, 2007

Citation
Chengxing Zhai, Mark H. Milman, Martin W. Regehr, and Paul K. Best, "White-light interferometry using a channeled spectrum. 2. Calibration methods, numerical and experimental results," Appl. Opt. 46, 7906-7923 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-32-7906

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