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<p>To accomplish accurate and reliable data transfer, digital communication employs a variety of coding techniques such as Return-to-Zero (RZ), Non-Return-to-Zero (NRZ), and Biphase coding etc. Among these, Manchester coding is well recognized for its capacity to increase the detection efficiency of high-speed digital communication systems. Here, the authors present a novel all optical method for creating frequency-varying Manchester line-encoded data using Photonic Band Gap Crystal (PBG) for the first time. This technique uses nonlinear switches based on photonic band gap (PBG) structure with photonic crystal-based semiconductor optical amplifiers (PhC-SOAs). This work uses simulation to build and assess all optical frequency encoded Manchester data utilizing Finite-Difference Time Domain (FDTD) and Plane Wave Expansion (PWE) approaches. The wavelength range of operation for the suggested structure is 1189.2–1740.5&#xa0;nm. This frequency encoded Manchester data generation device has an exceptionally fast response time of around 0.372 picosecond, allowing for high-speed optical information processing. It has a high bit rate of 2.6882&#xa0;Tb/s and this nano-photonic crystal-based (PhC) structure guides light confinement and control, while frequency encoding improves the logic system’s overall performance and efficiency.</p>

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Frequency encoded Manchester data generation scheme using photonic band gap crystal

  • 期刊论文

  • 发表日期：

    2025年12月10日

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  • Debashri Saha,
  • Ayan Dey,
  • Sourangshu Mukhopadhyay

摘要

To accomplish accurate and reliable data transfer, digital communication employs a variety of coding techniques such as Return-to-Zero (RZ), Non-Return-to-Zero (NRZ), and Biphase coding etc. Among these, Manchester coding is well recognized for its capacity to increase the detection efficiency of high-speed digital communication systems. Here, the authors present a novel all optical method for creating frequency-varying Manchester line-encoded data using Photonic Band Gap Crystal (PBG) for the first time. This technique uses nonlinear switches based on photonic band gap (PBG) structure with photonic crystal-based semiconductor optical amplifiers (PhC-SOAs). This work uses simulation to build and assess all optical frequency encoded Manchester data utilizing Finite-Difference Time Domain (FDTD) and Plane Wave Expansion (PWE) approaches. The wavelength range of operation for the suggested structure is 1189.2–1740.5 nm. This frequency encoded Manchester data generation device has an exceptionally fast response time of around 0.372 picosecond, allowing for high-speed optical information processing. It has a high bit rate of 2.6882 Tb/s and this nano-photonic crystal-based (PhC) structure guides light confinement and control, while frequency encoding improves the logic system’s overall performance and efficiency.