Solar-Blind Optical Wireless Communications Over 80 Meters Using a 265-nm High-Power Single-Chip DUV-LED Over 500 mW in Sunlight

• Published in: IEEE photonics journal Vol. 15; no. 3; pp. 1 - 5
• Main Authors: Kurosawa, Hiroyuki, Tsuzuki, Sachiko, Taniguchi, Manabu, Inoue, Shin-ichiro
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.06.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Deep-ultraviolet light emitting diodes (DUV-LEDs); Eye (anatomy); eye pattern; Light emitting diodes; Line of sight communication; Measuring instruments; Mirrors; Nanostructures; non-line-of-sight (NLOS) wireless communications; Nonlinear optics; Optical filters; Optical receivers; Optical transmitters; solar-blind communications; Sunlight; Wireless communication systems
• ISSN: 1943-0655; 1943-0655; 1943-0647
• DOI: 10.1109/JPHOT.2023.3276176

Direct eye-pattern measurements based on a deep-ultraviolet (DUV) light emitting diode (LED) optical wireless communication system were performed in sunlight. A state-of-the-art, high-power DUV-LED was developed and used as a transmitter consisting of only one LED chip with a light output power greater than 500 mW at its peak emission wavelength of 265 nm. A DUV light receiver was also developed that excluded sunlight with high performance. We demonstrated clear eye-patterns at 1 Mbps in both line-of-sight (LOS) and non-line-of-sight (NLOS) configurations over a communication distance of 80 meters in sunlight.