B. Mirzapour
UMass, Amherst,
United States
Keywords: metasurface, VCSEL array, Lidar, 3D beam scanning system
Summary:
I will present a fast, wide-angle, low power consumption and potentially low-cost laser beam scanner in the size of a small chip, enabled by a large VCSEL array and a metalens. The laser beam’s direction is electronically scanned by addressing 4096 VCSEL array elements within an active area of 1.7mm×2mm. High-efficient and 60ns random beam scanning with a maximum 130 degrees field of view with a full divergence angle of 0.3°, and angular resolution of 1.1° is achieved. This achievement is particularly noteworthy in the context of Lidar technology, which has witnessed transformative developments, moving towards compact, solid-state systems with improved range, resolution, and cost-effectiveness and hold promise for further innovations in the field of optical 3D sensors and imaging technologies. Overall, this work contributes to the ongoing evolution of the chip-scale Lidar technology, opening avenues for diverse applications in high-speed optical communication, and single pixel imaging systems.