Optical filter based on photonic crystal

Musavizadeh, Seyyedeh Marziye ; Soroosh, Mohammad ; Mehdizadeh, Farhad

Abstract

In the present paper, a novel structure for designing all optical filter based on photonic crystal structure is proposed. The filter is capable of selecting optical signals at wavelength of 1550 nm and the total footprint is less than 118 mm2.The transmission efficiency and bandwidth were obtained as 92% and 0.9 nm, respectively. After designing the filter, the impact of different parameters on the filtering behaviour of the structure has been studied. Simplicity of design and ultra-compact dimensions is the most significant characteristics of the filter.

Keyword(s)

Photonic Crystal; Optical filter; Defect; Finite difference time domain method

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