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Single-carrier 220-Gbit/s sub-THz wireless transmission over 214 m using a photonics-based system
Optics Letters
|August 15, 2024
Summary
Researchers achieved a 220-Gbit/s wireless link using a 300-GHz photonics system. This breakthrough enables high-speed wireless backhaul communications for future 6G networks.
Area of Science:
- Terahertz (THz) communications
- Photonics-based wireless systems
- Digital signal processing (DSP) for wireless
Background:
- High-capacity wireless communication is crucial for future network demands.
- Existing wireless technologies face limitations in bandwidth and speed.
- Terahertz band offers vast potential for ultra-high-speed data transmission.
Purpose of the Study:
- To demonstrate a single-carrier wireless link at 220 Gbit/s.
- To achieve this speed over a significant distance (214 m).
- To validate the feasibility of photonics-based systems for future wireless backhaul.
Main Methods:
- Utilized a photonics-based system operating in the 300 GHz band.
- Incorporated on-line digital signal processing (DSP).
- Optimized the system with a low-noise two-tone laser and leveraged antenna Fresnel region effects.
Main Results:
- Successfully demonstrated a single-carrier 220 Gbit/s wireless link.
- Achieved transmission over a distance of 214 meters.
- Maintained performance within the hard-decision forward error correction (HD-FEC) limit.
Conclusions:
- The developed system represents a significant advancement in wireless communication technology.
- This photonics-based approach offers a low-cost solution for future backhaul networks.
- The technology is a promising candidate for sixth-generation (6G) wireless systems.
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