Narrow-Linewidth Erbium-Doped Fiber Laser with Ultrashort Random Distributed Feedback Based on Disordered Structures Fabricated by Femtosecond Laser Radiation. - Skvortsov, M. I.; Kolosova, K. V.; Abdullina, S. R.; Dostovalov, A. V.; Munkueva, Zh. E.; Golikov, E. V.; Egorova, O. N.; Babin, S. A. (Bulletin of the Lebedev Physics Institute, 2025)