Transmittance of tapered photonic crystal fibers with absorbing coatings Mauricio Salazar Sicacha, Vladimir P. Minkovich, Alexander B. Sotsky, Artur V. Shilov and Luidmila I. Sotskaya EPJ Web Conf., 238 (2020) 08005 Published online: 20 August 2020 DOI: 10.1051/epjconf/202023808005