We demoed the capabilities of an infrared (IR) light communication system, incorporating a movable receiver. By utilizing an IR laser and scattering lens as the transmitter, and an avalanche photo-diode (APD) with collimator as the receiver, we leverage the reflection cross section in the environment to expand the system’s coverage. Binary data encoded messages are transmitted via modulated IR light signals to the movable receiver, which captures and decodes them. The demo demonstrates the system’s resilience against interference and the receiver’s flexibility in capturing signals from different angles and positions. It serves as a valuable showcase of the potential applications of IR-based light communication, surpassing traditional methods in terms of privacy, bandwidth, and suitability for wireless VR/AR and high-speed reliable data links.
Congratulations to Yanchen Liu, Minghui Zhao and the rest of the team.