研究目的
Design and analysis of a multi-hexagonal reversible encoder using photonic crystals to achieve high contrast ratio for logical states.
研究成果
The proposed 4 × 2 reversible optical encoder, designed using a multi-hexagonal shaped structure based on photonic crystal resonator, demonstrates high contrast ratios for logical states of 01 and 10. The design achieves significant differences in power coupling for logic 1 and logic 0 states, validating its potential for photonic logic devices.
研究不足
The study focuses on the design and simulation of the encoder without physical fabrication or testing. The performance is evaluated based on theoretical models and simulations, which may differ from practical implementations.
1：Experimental Design and Method Selection:
The design involves a 4 × 2 reversible encoder using two-dimensional photonic crystals with non-linear refractive index. The multi-hexagonal shaped structure is arranged in parallel with appropriate inclination to achieve the desired output.
2：Sample Selection and Data Sources:
The structure is designed to resonate at the wavelength of 1550 nm with specific dielectric constant, refractive index, lattice constant, and radius.
3：List of Experimental Equipment and Materials:
The design utilizes photonic crystals with specific parameters (dielectric constant, refractive index, lattice constant, and radius) and employs the plane wave expansion (PWE) method for calculating the bandgap structure.
4：Experimental Procedures and Operational Workflow:
The functionality of the encoder is demonstrated by transmitting inputs through designated ports and observing the output power coupling for logic 1 and logic 0 states.
5：Data Analysis Methods:
The performance is evaluated based on the contrast ratio between logical states, with specific attention to the power coupling percentages for logic 1 and logic 0.
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