Analysis of polarization-insensitive tunable optical filter using liquid crystal: Connection formula and apparent paradox

H. Yoda, Y. Ohtera, O. Hanaizumi, S. Kawakami

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

The resonance characteristics of a twisted-nematic liquid crystal Fabry-Pérot wavelength filter (TN-FP) is analysed and it is shown that it obeys some simple laws hitherto unknown. A method to calculate the transmittance and eigenstate of polarizations of the filter is first demonstrated. Next, approximate expressions of resonance wavelengths at some of the voltage regions are derived and connection formulae for two series of modes are presented. Finally, a transition of the eigen polarization in the FP etalon is investigated, and an interpretation of a paradoxical property concerning the longitudinal mode number of the filter is given.

Original languageEnglish
Pages (from-to)285-299
Number of pages15
JournalOptical and Quantum Electronics
Volume29
Issue number2
DOIs
Publication statusPublished - 1997 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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