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Advisor(s)
Abstract(s)
In this study, we propose a novel all-optical Galois Field (AOGF) adder that utilizes logic alloptical XOR gates. The design is founded on the constructive and destructive interference
phenomenon of optical beams and incorporates the phase shift keying (PSK) technique within a
two-dimensional linear photonic crystal (2D-LPhC) structure. The suggested AOGF adder
comprises eight input ports and four output ports. To obtain the electric field distribution in this
structure, we employ the Finite Difference Time Domain (FDTD) procedure. The FDTD
simulation results of the proposed AOGF adder demonstrate that the minimum and maximum
values of the normalized power at ON and OFF states (𝑃ଵ,, 𝑃,௫) for the output ports are 95%
and 1.7%, respectively. Additionally, we obtain different functional parameters, including the ONOFF contrast ratio, rise time, fall time, and total footprint, which are measured at 17.47 dB, 0.1 ps,
0.05 ps, and 147 μm2
, respectively.
Description
Keywords
Photonic crystals Optical Galois Field adder Phase shift keying Optical waveguide
Citation
Asghar Askarian, Fariborz Parandin, Nila Bagheri and Fernando J. Velez, Ultra-fast and Compact Optical Galois Field Based on the LpHC Structure and Phase Shift Keying, Applied Optics, vol. 63, no. 8, Feb. 2024, pp. 1939-1946 (doi: 10.1364/AO.515545).
Publisher
Optica Publishing Group