摘要
In this article,we review recent advances in the technology of writing fiber Bragg gratings(FBGs)in selected cores of multicore fibers(MCFs)by using femtosecond laser pulses.The writing technology of such a key element as the FBG opens up wide opportunities for the creation of next generation fiber lasers and sensors based on MCFs.The advantages of the technology are shown by using the examples of 3D shape sensors,acoustic emission sensors with spatially multiplexed channels,as well as multicore fiber Raman lasers.
基金
supported by the Russian Ministry of Science and Higher Education (14.Y26.31.0017)
Russian Foundation for Basic Research(18-52-7822)
the work concerning MCF fiber Raman lasers was supported by Russian Science Foundation (21-72-30024)
