Tetsuya Kawanishi

Waseda University

Papers

2

Total Citations

6

H-Index

2

About

Tetsuya Kawanishi is a leading researcher in high-speed free-space optical (FSO) communications, with a focus on enabling robust, mobile optical links for next-generation networks. His major contributions center on overcoming the fundamental challenge of maintaining stable, high-data-rate connections in dynamic environments. Kawanishi pioneered the integration of a three-stage high-speed optical beam stabilizer with a two-dimensional photodetector array (2D-PDA) for spatial diversity reception. This innovative system, demonstrated in his most cited works, achieves a 40-Gbit/s mobile FSO link using PAM-4 modulation, even with a transmitter moving at 400 mm/s—a breakthrough for applications like support robots and autonomous systems. His work shows that combining mechanical beam steering with digital signal processing (maximum-ratio combining) can effectively mitigate beam misalignment and atmospheric turbulence. With each of his top papers garnering 3 citations, Kawanishi’s research is foundational for practical, high-mobility FSO systems, promising to extend optical wireless connectivity beyond static links into real-world, mobile scenarios.

Research Focus

Key Achievements

2
H-Index
2
Papers
6
Total Citations
3
Avg Citations/Paper
🏆 Most Cited Paper
High-mobility 40-Gbps free-space optical link by a three-stage high-speed beam stabilizer and 2-D photodetector array based diversity reception
3 citations · 2025
📈 Most Prolific Year: 2025 (1 Papers)
🤝 Key Collaborators: 11
🏛 Institutions: Waseda University

Top Papers

  1. 1
  2. 2

Key Collaborators

Contact & Links

Available for collaboration
Content generated · 14 days ago