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arXiv · 2412.06801

Dual-Axis Beam-Steering OPA with purely Passive Phase Shifters

Venus Kakdarvishi·Bowen Yu·Yasha Yi
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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.

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Venus Kakdarvishi, Bowen Yu, Yasha Yi. 2024-11-23. Dual-Axis Beam-Steering OPA with purely Passive Phase Shifters. https://arxiv.org/abs/2412.06801

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