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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 18 — Jun. 20, 2012
  • pp: 4186–4195

Effect and suppression of secondary fringes in FATWindII

Chunmin Zhang, Haishan Dai, Tingkui Mu, and Yan Qu  »View Author Affiliations


Applied Optics, Vol. 51, Issue 18, pp. 4186-4195 (2012)
http://dx.doi.org/10.1364/AO.51.004186


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Abstract

By considering the instrument as a complex operator on the incident electric field, a model to calculate secondary fringes of the Field-widened, Achromatic, Temperature-compensated Wind Imaging Interferometer (FATWindII) has been built. The distribution of secondary fringes on a charge coupled device detector has been plotted. The effects of secondary fringes on inversion errors of temperature and wind velocity have been presented. The results show that antireflection coating on the air/glass interface cannot meet the accuracy requirement of FATWindII. A theoretical method for calculating the optimal wedge angles of compensating glasses is derived to suppress the secondary fringes while preserving the primary ones. By adopting both methods, coating with antireflection film and shaping wedge compensating glasses, the relative intensity of secondary fringes is reduced to below 2.5% and the inversion errors of temperature and wind velocity introduced by the effects of secondary fringes can be minimized to about 0.05 K and 0.045ms1, respectively.

© 2012 Optical Society of America

OCIS Codes
(100.2650) Image processing : Fringe analysis
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(010.7295) Atmospheric and oceanic optics : Visibility and imaging

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: February 28, 2012
Manuscript Accepted: April 28, 2012
Published: June 18, 2012

Citation
Chunmin Zhang, Haishan Dai, Tingkui Mu, and Yan Qu, "Effect and suppression of secondary fringes in FATWindII," Appl. Opt. 51, 4186-4195 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-18-4186

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