Toshimasa Umezawa
National Institute of Information and Communications Technology
Papers
1
Total Citations
3
H-Index
1
About
Toshimasa Umezawa is a leading researcher in high-speed free-space optical (FSO) communications, with a focus on mobile optical wireless systems for robotics and industrial automation. His most cited work, "40-Gbit/s Mobile FSO with High-speed Beam Stabilizer and 2D-PDA-based Diversity Receiver for Support Robots" (2024, 3 citations), demonstrates a groundbreaking experimental system that achieves 40-Gbit/s PAM-4 transmission over a 2.1-meter link, even with a transmitter moving at 400 mm/s. This achievement is enabled by his innovative integration of a high-speed beam stabilizer and a 2D-photodetector array-based diversity receiver, which maintains reliable communication within a 7% FEC criterion. Umezawa’s contributions are pivotal for enabling real-time, high-bandwidth connectivity in mobile support robots, overcoming challenges of beam misalignment and mobility. His work bridges the gap between optical fiber speeds and wireless flexibility, with potential applications in smart factories, autonomous vehicles, and augmented reality. Though early in citation impact, his 2024 paper represents a significant step toward practical, high-speed mobile FSO systems, establishing him as a key innovator in next-generation optical wireless networks.
Research Focus
Key Achievements
Top Papers
- 1