TY - GEN N1 - Optica Applicata, Vol. 37, 2007, nr 3, s. 279-294 N2 - In this work, diffusion processes in thermally connected cylindrical fibers with weakly guiding and circular cross-section, that is, telecommunication fibers, have been presented. There have been discussed diffusion distributions of the core dopant of fibers spliced at T » 2000 °C. Gaussian approximations of the core dopant concentration distribution and refractive index in the connecting area of single mode telecommunication fibers have been presented. Theoretical analysis of propagation and loss characteristics for thermally-diffused expanded core (TEC) of single mode telecommunication fibers has been performed, as well. Consistence of theoretical calculation results with experimental data, achieved on the basis of connecting telecommunication fibers with significantly different parameters, has been proved. L1 - http://www.dbc.wroc.pl/Content/63122/optappl_3703p279.pdf M3 - artykuł L2 - http://www.dbc.wroc.pl/Content/63122 PY - 2007 KW - optyka KW - single mode fibers KW - thermally-diffused expanded core (TEC) KW - dopant distribution KW - refractive index profile KW - Gaussian approximation C1 - Wszystkie prawa zastrzeżone (Copyright) A1 - Ratuszek, Marek A2 - Gaj, Miron. Redakcja PB - Oficyna Wydawnicza Politechniki Wrocławskiej C6 - Dla wszystkich w zakresie dozwolonego użytku LA - eng CY - Wrocław T1 - Loss analysis of single mode telecommunication fiber thermally-diffused core areas UR - http://www.dbc.wroc.pl/dlibra/publication/edition/63122 ER -