8月23～27日にオンライン開催された国際会議 19th International Conference on Optical Communications and Networks (ICOCN 2021) にて、李さん（OG、芝浦工業大学 助教）が下記招待講演を行いました。
H. Lee, K. Noda, Y. Mizuno, and K. Nakamura, “Recent progress in high-speed correlation-domain Brillouin sensing,” 19th International Conference on Optical Communications and Networks (ICOCN 2021), paper Th4B.1, online, August 23-27, 2021 <invited>.
We present the current status and future challenges of a fiber-optic distributed strain and temperature sensing method termed as Brillouin optical correlation-domain reflectometry (BOCDR). BOCDR operates on the basis of synthesized optical coherence functions and is a unique technique that can simultaneously achieve single-end operation, high spatial resolution, random accessibility, and cost efficiency. One of its drawbacks was the relatively low-speed operation, but this issue has been resolved by special schemes including slope-assisted BOCDR. We review such high-speed BOCDR schemes and discuss the future perspectives for their practical applications.