title: Investigation and comparison of analytical, numerical, and experimentally measured coupling losses for multi-step index optical fibers.
abstract: The aim of the present paper is to provide a comprehensive analysis of the coupling losses in multi-step index (MSI) fibres. Their light power acceptance properties are investigated to obtain the corresponding analytical expressions taking into account longitudinal, transverse, and angular misalignments. For this purpose, a uniform power distribution is assumed. In addition, we perform several experimental measurements and computer simulations in order to calculate the coupling losses for two different MSI polymer optical fibres (MSI-POFs). These results serve us to validate the theoretical expressions we have obtained.
authors.forename: Gotzon
authors.initials: G
authors.lastname: Aldabaldetreku
authors.forename: Gaizka
authors.initials: G
authors.lastname: Durana
authors.forename: Joseba
authors.initials: J
authors.lastname: Zubia
authors.forename: Jon
authors.initials: J
authors.lastname: Arrue
authors.forename: Hans
authors.initials: H
authors.lastname: Poisel
authors.forename: María
authors.initials: M
authors.lastname: Losada