AI Article Synopsis

  • A new silica-based LP mode rotator for space division multiplexing is introduced, showcasing multiple tapered trenches for improved performance.
  • This design outperforms traditional L-shape waveguide models in terms of mode conversion efficiency, insertion loss, and fabrication tolerance due to its adiabatic mode conversion principle.
  • Utilizing a shortcut to adiabaticity allows for effective miniaturization of the device, making it a strong candidate for future silica-based mode multi/demultiplexers.

Article Abstract

A silica-based LP mode rotator, which is one of the basic and indispensable optical components for space division multiplexing, with multiple tapered trenches is proposed. Compared with the conventional interference-based LP mode rotator with a simple L-shape waveguide, the proposed LP mode rotator has many advantages in a mode conversion efficiency, an insertion loss, and a fabrication tolerance because the operation principle is based on the adiabatic mode conversion. By using an approach of the shortcut to adiabaticity, the proposed device is effectively miniaturized rather than the standard tapered structures. Among the LP mode rotators in the silica-based mode multi/demultiplexers, the proposed type will be a considerably promising candidate.

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Source
http://dx.doi.org/10.1364/OE.493501DOI Listing

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