supported by the National Natural Science Foundation of China (No. 62171078);the National Key R&D Program of China (No. 2018YFB1801003)。
All-fiber few-mode erbium-doped fiber amplifiers(FM-EDFAs) with isolation and wavelength division multiplexers(IWDMs)have been developed to enable flexible pumping in different directions. The FM-EDFA can achieve >30 ...
supported by the National Key R&D Program of China(No.2018YFB1800903);the National Natural Science Foundation of China(No.U22A2087);the Guangdong Introducing Innovative and Entrepreneurial Teams of the Pearl River Talent Recruitment Program(No.2021ZT09X044);the Guangdong Provincial Key Laboratory of Photonics Information Technology(No.2020B121201011)。
The dynamic gain of a few-mode erbium-doped fiber amplifier(FM-EDFA)is vital for the long-haul mode division multiplexing(MDM)transmission.Here,we investigate the mode-dependent dynamic gain of an FM-EDFA under variou...
National Natural Science Foundation of China(U22A20206,61922033);Fundamental Research Funds for the Central Universities(HUST:2022JYCXJJ008);Innovation Fund of WNLO。
Optical fiber distributed acoustic sensing(DAS)based on phase-sensitive optical time domain reflectometry(φ-OTDR)is in great demand in many long-distance application fields,such as railway and pipeline safety monitor...