2024/11/23 by Venus Kakdarvishi, Bowen Yu, Kakdarvishi, Venus +3
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Applied Physics (physics.app-ph) #FOS: Physical sciences #Optical Wireless Communication Technologies #Optics (physics.optics) #Photonic and Optical Devices
paper · pdf · doi:10.48550/arxiv.2412.06801
openalex publication_date 2024/11/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.