Scholarlink

<p>Ring resonators are pivotal components in silicon photonics, serving as essential building blocks for modulators, demultiplexers, filters, and sensors in high-speed optical communication and integrated photonic systems. Their compact size, wavelength selectivity, and compatibility with CMOS manufacturing make them indispensable for applications like wavelength-division multiplexing and optical interconnects. However, their performance is highly sensitive to process variations, particularly in the coupling region, where even nanometer-scale fabrication imperfections can significantly degrade key metrics like the quality factor, posing a critical bottleneck for reliable, high-volume production. This study proposes a method to mitigate performance variation caused by manufacturing imperfections in coupling regions. Racetrack designs with certain gaps and certain physical coupling lengths are shown prospectively to better manage variations, improving stability compared to standard all-pass rings, as validated by simulations and statistical analysis. The findings offer practical guidelines for designing more reliable photonic devices.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Mitigating fabrication variations in silicon ring resonators: theoretical and statistical comparison of all-pass ring and add-drop racetrack designs

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月26日

查看全文
  • Ahmed Abdelhady,
  • Alaa Fathy,
  • Diaa Khalil

摘要

Ring resonators are pivotal components in silicon photonics, serving as essential building blocks for modulators, demultiplexers, filters, and sensors in high-speed optical communication and integrated photonic systems. Their compact size, wavelength selectivity, and compatibility with CMOS manufacturing make them indispensable for applications like wavelength-division multiplexing and optical interconnects. However, their performance is highly sensitive to process variations, particularly in the coupling region, where even nanometer-scale fabrication imperfections can significantly degrade key metrics like the quality factor, posing a critical bottleneck for reliable, high-volume production. This study proposes a method to mitigate performance variation caused by manufacturing imperfections in coupling regions. Racetrack designs with certain gaps and certain physical coupling lengths are shown prospectively to better manage variations, improving stability compared to standard all-pass rings, as validated by simulations and statistical analysis. The findings offer practical guidelines for designing more reliable photonic devices.