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year 27, Issue 1 (Iranian Nano-Photonic Conference 2020 2020)
ICOP & ICPET _ INPC _ ICOFS 2020, 27(1): 28-30 |
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Maleki M J, Soroosh M, Daghooghi T. A proposed compact photonic crystal-based structure for all-optical decoder. ICOP & ICPET _ INPC _ ICOFS 2020; 27 (1) :28-30
URL: http://opsi.ir/article-1-2245-en.html
URL: http://opsi.ir/article-1-2245-en.html
1- Dept. of Electrical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Abstract: (1506 Views)
In this paper, a photonic crystal-based structure for all-optical 1-to-2 decoder has been proposed. In this structure, two nonlinear defects with different rods have been used to transmit the light toward the output ports for different optical intensities. Corresponding input states, optical powers reach the nonlinear defects. Due to the optical Kerr effect, the defect indices and the amount of the coupled light to the output ports change. For the simulation of the proposed structure, the finite difference time domain method has been used. In this method, the effective refractive index is considered to reduce the computational error. The area and the delay time of the proposed device are 39 µm2 and 0.21 ps, respectively. The small size of the proposed structure compared with other basic ones shows that one can be optimistic about employ it. Besides, the fast response time takes into account another advantage of the structure. Also, the normalized difference of 88% between 0 and 1 logic levels is an essential feature of the proposed design. According to the obtained results from the simulation, the proposed plan can be known as a compact basis for designing the optical decoders.
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