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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 8 — Mar. 10, 2010
  • pp: 1280–1287

Method to reduce sidelobes of multistage Lyot filters

Guowei Yang, Zhenrong Zheng, Haifeng Li, and Xu Liu  »View Author Affiliations

Applied Optics, Vol. 49, Issue 8, pp. 1280-1287 (2010)

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We propose a method to reduce sidelobes of multistage Lyot filters by substituting certain stages with two-plate fan Šolc stages. Parallel-aligned nematic liquid crystal (LC) cells are used as variable retarders to compose multistage Lyot LC tunable filters (LCTF). The simulation of a four-stage Lyot LCTF and a tunable filter, comprising two stages of Lyot filter and two stages of two-plate Šolc filter, are compared. With this method, the sidelobes are reduced and the full width at half-maximum intensity of transmission peak is also reduced. Experimental results and theoretical analysis are presented in detail to verify this method.

© 2010 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices
(350.2460) Other areas of optics : Filters, interference
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: October 22, 2009
Revised Manuscript: December 24, 2009
Manuscript Accepted: January 28, 2010
Published: March 4, 2010

Guowei Yang, Zhenrong Zheng, Haifeng Li, and Xu Liu, "Method to reduce sidelobes of multistage Lyot filters," Appl. Opt. 49, 1280-1287 (2010)

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