Analysis of Liquid Crystal Tunable Thin-Film Optical Filters Using Signal Flow Graph Technique | Zendy

Abedalgany Athamneh | Zendy; Shadi A. Alboon | Zendy

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Analysis of Liquid Crystal Tunable Thin-Film Optical Filters Using Signal Flow Graph Technique

Author(s) -

Abedalgany Athamneh,

Shadi A. Alboon

Publication year - 2021

Publication title -

international journal of optics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.263

H-Index - 17

eISSN - 1687-9392

pISSN - 1687-9384

DOI - 10.1155/2021/5513995

Subject(s) - signal flow graph , filter (signal processing) , optical filter , materials science , optics , signal (programming language) , computer science , band pass filter , graph , reflection (computer programming) , refractive index , filter design , optoelectronics , physics , computer vision , theoretical computer science , electrical engineering , programming language , engineering

In this paper, a liquid crystal tunable thin-film optical bandpass filter is studied and analyzed using the signal flow graph technique. This paper investigates an exact form for calculating the transmission coefficients, reflection coefficients, and the transmission intensity of the filter. The simulation results show the filter performance and the channel shape profile. In addition, the results show the tuning capability of the filter. The signal flow graph technique provides an attractive method for analyzing the thin-film optical filters since it overcomes the difficulty of the refractive index concept in extending to optical applications. Moreover, it simplifies the filter analysis and design process.

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