Dual-Axis Beam-Steering OPA with purely Passive Phase Shifters
Optics
2024-12-11 v1 Applied Physics
Abstract
In this work, we present a multi-layer optical phased array (OPA) designed for dual-axis beam steering on a silicon (Si) platform, utilizing only wavelength tuning. Our design eliminates the need for grating couplers, commonly required for dual-axis beam steering, thereby reducing energy losses due to substrate leakage. It also features the unique capability of achieving a positive or negative phase slope profile. This three-dimensional architecture enhances output efficiency by emitting light from the device edge, providing greater flexibility and improved performance in beam steering. This approach opens up new possibilities for on-chip photonic systems, enabling faster, more accurate, and broader beam steering range.
Keywords
Cite
@article{arxiv.2412.06801,
title = {Dual-Axis Beam-Steering OPA with purely Passive Phase Shifters},
author = {Venus Kakdarvishi and Bowen Yu and Yasha Yi},
journal= {arXiv preprint arXiv:2412.06801},
year = {2024}
}