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Low-loss, ultracompact n-adjustable waveguide bends for photonic integrated circuits
Optics Express
|February 14, 2023
Summary
A novel n-adjustable (NA) bend offers lower optical losses than traditional designs. This new waveguide bend is a promising candidate for developing compact photonic integrated circuits.
Area of Science:
- Photonics
- Integrated Optics
- Waveguide Design
Background:
- Traditional waveguide designs rely on four basic bend types: circular, sine/cosine, Euler, and Bezier.
- These existing bends have limitations in performance, particularly concerning signal loss.
Purpose of the Study:
- To introduce a new n-adjustable (NA) bend for optical waveguides.
- To demonstrate the superior performance of NA bends over existing designs, particularly in reducing signal loss.
Main Methods:
- The study involved designing and simulating the proposed n-adjustable (NA) bend.
- Experimental validation was conducted to verify the simulation results.
Main Results:
- NA bends demonstrate lower optical losses compared to circular, Euler, and Bezier bends.
- Adjusting the 'n' parameter in NA bends allows for optimization of loss reduction.
- Circular and Euler bends are identified as special cases of the NA bend (n=0 and n=1).
Conclusions:
- The n-adjustable (NA) bend offers enhanced performance with lower losses.
- NA bends are suitable for fabricating compact and efficient photonic integrated circuits.
