Design and Comparative Analysis of an Ultra-Fast, Low-Power All-Optical 4 × 2 Encoder Using a Silicon Y-Shaped 2D Photonic Crystal

The optical Encoder plays a crucial role in optical computing and communication applications. This proposed work employs an innovative technique to design and simulate a Silicon Y-shaped 2D Photonic Crystal unique structure for an all-optical 4 × 2 encoder. The proposed structures consist of silicon...

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Bibliographic Details
Published in:SILICON 2024-08, Vol.16 (12), p.4997-5008
Main Authors: Arunkumar, R., Robinson, S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Crosstalk
Crystal lattices
Crystal structure
Design analysis
Environmental Chemistry
Inorganic Chemistry
Insertion loss
Integrated circuits
Lasers
Lattice design
Lattice vibration
Materials Science
Maximum power
Numerical analysis
Optical Devices
Optical encoders
Optics
Personal computers
Photonic crystals
Photonics
Polymer Sciences
Silicon
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Summary:The optical Encoder plays a crucial role in optical computing and communication applications. This proposed work employs an innovative technique to design and simulate a Silicon Y-shaped 2D Photonic Crystal unique structure for an all-optical 4 × 2 encoder. The proposed structures consist of silicon rods arranged in a square lattice within a background of air. The frequency modes and encoder design were studied using the PWE method, while the proposed design underwent numerical analysis, simulations, and optimizations using the FDTD numerical solution approach. The structure is engineered to ensure maximum power confinement at the output of the silicon PC-based 4 × 2 Encoder. With a low power loss and outstanding contrast ratio, the structure is specifically designed for the 1550 nm wavelength range. This 4 × 2 encoder boasts a compact footprint of 295μm 2 , a minimal delay of 0.17 ps, an impressive contrast ratio of 31.14 dB, a minimum response time of 0.24 ps, a steady state time of 1.03 ps, a bit rate reaching 4.17 Tbps, minimal cross-talk -31.14 dB, an extinction ratio of 31.14 dB, and an insertion loss of -3.18 dB. Considering these attributes, it comes highly recommended for applications in optical signal processing and photonic integrated circuits. Graphical Abstract
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-024-03050-4