Fraunhofer Institute for Photonic Microsystems
Li-Fi PoL (Power-over-Light) is a compact, self-sufficient sensor platform that combines wireless optical data communication with energy autonomy. Powered by ambient light or optional optical wireless power transfer, Li-Fi PoL eliminates the need for batteries or RF communication, making it ideal for sensitive or RF-restricted environments. Data is exchanged securely and bidirectionally via a Li-Fi TinySpot interface at typical rates of 10 Mbps over a range of up to 1 meter. The system supports a variety of sensors, including temperature, humidity, pressure, light, and vibration, within a small footprint of approximately 50 × 50 mm². Fully eye-safe (Laser Class 1), Li-Fi PoL enables maintenance-free sensing for industrial, medical, and IoT applications.
Features
- Self-sufficient sensor nodes:
- Powered by ambient light or optical wireless power transfer
- Wireless data transfer via a Li-Fi interface (Li-Fi TinySpot)
- No need radio-frequency communications
- Safe & secure
- Supported sensor types:
- Temperature, humidity, pressure, light, shock / vibration,…
- Bidirectional, optical wireless data interface
- Data rate: typ. 10 Mbps, more on request
- Small size (approx. 50 x 50 mm²)
- Range: 1m
- Laser Safety Class 1 (Eye Safe)
