Compact Silicon-Photonics Waveguide-Confined Receiving and Transmitting Antenna With Signal Remodulation for Indoor Optical Wireless Communication
Abstract
We propose and demonstrate a compact silicon photonics (SiPh)-based waveguide (WG)-confined receiving antenna (RA) and transmitting antenna (TA) integrated with an enhanced direct intensity remodulation scheme. In a narrow-beam-steered system, the RA exhibits only 5.3-dB power variation over a 12° angular range, supporting data rates > 28.12 Gbps, while in an ultra-narrow-beam-steered system, a 6-dB field-of-view (FoV) of 6.4° enables data rates > 70 Gbps. The combined RA-TA architecture supports bidirectional channels without additional UL lasers. The proposed signal interference cancellation (SIC) algorithm further enhances UL performance. Experimental results show signal-to-noise ratio (SNR) improvements up to 2.37 dB and potential UL throughput gains up to 45% for higher DL modulation depths.
Fields of Study & Subjects
Advanced Photonic Communication Systems
Photonic and Optical Devices
Plasmonic and Surface Plasmon Research
Publication details
- Journal / source
- Journal of Lightwave Technology
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Volume
- 44
- Issue
- 12
- Pages
- 5024–5032
- Publication date
- 6 April 2026
- Language
- EN