Abstract—In this paper we proposed a novel structure for
designing all optical filter based on photonic crystal structure.
For designing the proposed filter we simply employed a point
defect localized between input and output waveguides as
wavelength selecting part of the filter. The initial form of this
filter is capable of selecting optical waves at ．=1554.2 nm, the
transmission efficiency of the filter is 100%. In designing and
studying the optical properties of the filter we used plane wave
expansion and finite difference time domain methods. After
designing the filter we studied the impact of different
parameters on the filtering behavior of the structure. The total
footprint of the filter is less than 76 ○ m2. Simplicity of
design and ultra-compact dimensions are the most significant
characteristics of our filter.
Index Terms—Defect, FDTD, optical filter, photonic crystal.
The authors are with the Department of Electronics, Tabriz Branch,
Islamic Azad University, Tabriz, Iran (e-mail: alipour@iaut.ac.ir).
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Cite: Hamed Alipour-Banaei, Farhad Mehdizadeh, and Behnaz Amini, "All Optical Communication Filter Based on Photonic Crystal Structure," International Journal of Future Computer and Communication vol. 4, no. 5, pp. 346-349, 2015.
