The Need
As Optical Wireless Communication (OWC) systems become increasingly prevalent, there is a growing demand for innovative signal conversion techniques that enhance communication capabilities while addressing security vulnerabilities. Conventional methods of optical-to-RF signal conversion rely on power-consuming components, limiting deployment flexibility and efficiency. A battery-free, simplified approach that enables effective signal conversion and security evaluation is essential for advancing OWC technology and addressing its associated risks.

The Technology
This invention introduces a novel, battery-free mechanism for converting optical signals to Radio Frequency (RF) signals in OWC systems. By coupling a photodiode (PD) with an antenna, it leverages varying light intensity to modulate RF signal reflections, enabling the wireless capture of OWC data through physical barriers. The design circumvents traditional Electromagnetic Compatibility (EMC) limitations while operating entirely without a power source. Requiring only two passive components, this innovative approach achieves efficient optical-to-RF signal conversion, facilitating deployment in security research, wireless networks, and remote sensing applications.

Commercial Applications

• Security Analysis and Testing: Tools for identifying vulnerabilities in current and emerging OWC systems.
• Wireless Network Infrastructure: Enhancing performance in high-density environments like stadiums and commercial centers.
• Remote Sensing and Environmental Monitoring: Enables long-term, power-free data collection in remote or inaccessible locations.
• Advanced Communication Systems: Bridges optical and RF communication for 5G, 6G, and beyond.

Benefits/Advantages

• Power-Free Operation: Eliminates battery requirements, ensuring indefinite use and low maintenance.
• Simplified Deployment: Requires only a photodiode and antenna, with no need for complex circuitry.
• Enhanced Concealment: Minimalist design facilitates discreet deployment and reduces detection risks.
• Regulatory Compliance: Achieves signal conversion without contravening EMC regulations.
• Versatility: Operates effectively across diverse environments and applications.