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2D beam steerer based on metalens on silicon photonics
Optics Express
|March 17, 2021
Summary
This study presents a novel solid-state beam steering platform using a metalens and switchable silicon microring emitters. It achieves efficient, compact, two-dimensional beam steering for applications like LiDAR and free-space communications.
Area of Science:
- Optoelectronics
- Nanophotonics
- Solid-state devices
Background:
- Solid-state beam steering is crucial for advanced LiDAR and free-space optical communication.
- Existing technologies face challenges in scalability, efficiency, and miniaturization.
Purpose of the Study:
- To demonstrate a novel platform for efficient, compact, and scalable two-dimensional beam steering.
- To enable practical miniature beam steering devices for next-generation applications.
Main Methods:
- Utilizing a metalens integrated with a two-dimensional array of switchable silicon microring emitters.
- Employing a single wavelength for beam steering control.
Main Results:
- Achieved a field of view of 12.4° × 26.8°.
- Demonstrated efficient operation with low electrical power consumption (< 83 mW).
- Developed a scalable and compact beam steering solution.
Conclusions:
- The metalens-on-microring platform offers a promising solution for practical miniature beam steerers.
- This technology advances solid-state beam steering for LiDAR and free-space communications.
- The demonstrated system is efficient, scalable, and compact.
