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In this paper, 4 × 2 encoder is proposed by combining optical waveguides and the ring resonators. The proposed structure has four input ports, two control input and two output ports. The hexagonal photonic crystal structure has the square lattice of chalcogenide glass rods with the refractive index of 2.1 in air. Maximum bit rate of 10 Tb/s and response time of 0.1 ps is obtained using the proposed cross-layered arrangement of the chalcogenide glass rods with circular inner arrangement. The size of the proposed structure is 18.6 µm x 24.6 µm. Moreover, the contrast ratio of outputs is found to be 28.3 and 48.45 dB. The fundamental structure for the proposed encoder is also designed and analysed for validating the desired bandgap at the resonant wavelength of 1550 nm.

Design of Optical 4 × 2 Encoder Using Cross Layered Chalcogenide2D-PC Resonator