Yasuharu Suematsu
Yasuharu Suematsu | |
|---|---|
Suematsu in 2006 | |
| Born | September 22, 1932 (age 92)[1][3] |
| Nationality | Japanese[1] |
| Alma mater | Tokyo Institute of Technology[1][3] |
| Known for | Contributing to the development of optical fiber communication |
| Awards | 2015 The Order of Culture, from the Emperor of Japan. 2014 Japan Prize[1]
1986 IEEE David Sarnoff Award[1] |
| Scientific career | |
| Fields | Optical communications[3] |
| Notable students | Yoshihisa Yamamoto[4] |
Yasuharu Suematsu (末松 安晴, Suematsu Yasuharu; born September 22, 1932) is a Japanese electrical engineer. His work has contributed to developments in optical fiber communication technology. His research on dynamic single-mode lasers has also been cited in several academic and technical studies. Suematsu holds the title of professor emeritus at the Institute of Science Tokyo.
Life
Yasuharu Suematsu was born on September 22, 1932, in Gifu, Japan.[3] He received his Bachelor of Science in Engineering (1955) and Ph.D. (1960) from the Tokyo Institute of Technology.[1][3] Afterward, he joined the faculty of the Tokyo Institute of Technology as a professor. In 1989, he was appointed President of the University[1] until 1993 when he became the inaugural[5] President of Kochi University of Technology, also serving as Director General[1] of the National Institute of Informatics. During the same year, he was elected a member of the National Academy of Engineering (US) with the citation "For contributions to the understanding and development of optical fibers, high-performance semiconductor lasers, and integrated optoelectronics."[6]
He is a Foreign Associate of the National Academy of Engineering, a Foreign Member of the National Academy of Engineering of Korea, an Optica Fellow, and a Fellow of the Institute of Electrical and Electronics Engineers.[7]
He has authored 19 books and more than 260 scientific papers.[2]
Research
Professor Suematsu's work contributed to the development of optical fiber communication. He developed semiconductor lasers which, even under high-speed modulation, produce light at a stable wavelength that coincides with the wavelength region where the optical losses of fibers reach their minimum.[8]
Social contribution by research
Optical fiber communications make up a highly dense communication network that circles the globe tens of thousands of times and is also used in applications such as middle-distance Ethernet. Additionally, dynamic single-mode lasers[9] of the 1.5 micrometers band are used for optical lines from the exchange to the home in Fiber To The Home (FTTH) applications. The transmission performance of fiber represented a byproduct of the transmission capacity, and the distance has increased exponentially yearly.
See also
- Distributed-feedback laser – Critical structure Suematsu refined for stable single-mode operation.
- Charles K. Kao – "Father of Fiber Optics". Suematsu's work realized practical lasers for Kao's vision.
- History of telecommunication – Suematsu's role in the fiber-optic revolution.
References
- ^ a b c d e f g h i j k l The Japan Prize Foundation: Dr. Yasuharu Suematsu. Dated 2014, Archived copy at archive.org
- ^ a b IEEE James H. Mulligan, Jr. Education Medal Recipients, Archived copy at archive.org
- ^ a b c d e f Nakata, Y.; Asada, M.; Suematsu, Y. (September 1986). "Analysis of novel resonant electron transfer triode device using metal-insulator superlattice for high speed response". IEEE Journal of Quantum Electronics. QE-22 (9): 1880–1886. Bibcode:1986IJQE...22.1880N. doi:10.1109/JQE.1986.1073178.
- ^ Yoshihisa Yamamoto: Curriculum Vitae. Dated January 2005. Original at stanford.edu Archived July 18, 2010, at the Wayback Machine,
- ^ Kochi University of Technology: Congratulating Professor Emeritus Yasuharu Suematsu on winning the Japan Prize. Dated January 31, 2014, Archived copy at archive.org
- ^ "Dr. Yasuharu Suematsu". 500 Fifth Street, NW Washington, DC: National Academy of Engineering. January 18, 2025.
{{cite web}}: CS1 maint: location (link) CS1 maint: url-status (link) - ^ "Yasuharu Suematsu | Optica". www.optica.org. Retrieved 2025-04-01.
- ^ The Japan Prize Foundation: Pioneering research on semiconductor lasers for high-capacity, long-distance optical fiber communication, Archived copy at archive.org
- ^ Suematsu, Yasuharu (2014-03-15). "Dynamic Single-Mode Lasers". Journal of Lightwave Technology. 32 (6): 1144–1158. Bibcode:2014JLwT...32.1144S. doi:10.1109/JLT.2013.2293817. S2CID 31634729.