Transmittance of tapered photonic crystal fibers with absorbing coatingsMauricio Salazar Sicacha, Vladimir P. Minkovich, Alexander B. Sotsky, Artur V. Shilov and Luidmila I. SotskayaEPJ Web Conf., 238 (2020) 08005DOI: https://doi.org/10.1051/epjconf/202023808005