AUTHOR=Drljača Branko , Simović Ana , Djordjevich Alexandar , Aidinis Konstantinos , Savović Svetislav 

TITLE=Improving the bandwidth of microstructured multimode W-type POFs in the visible light range

JOURNAL=Frontiers in Physics

VOLUME=Volume 13 - 2025

YEAR=2025

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2025.1537525

DOI=10.3389/fphy.2025.1537525

ISSN=2296-424X

ABSTRACT=The bandwidth of multimode W-type microstructured plastic optical fibers (mPOFs) is analyzed using the time-dependent power flow equation (TD PFE). The results demonstrate that increasing the wavelength enhances the bandwidth in W-type mPOFs, depending on the inner cladding width and the launch beam distribution width. We observed that bandwidth improves with thinner and shallower inner cladding, as well as a narrower centrally launched beam. This characterization aligns with the fibers’ effectiveness in increasing bandwidth, allowing for the customization of various W-type optical fibers for specific applications at different wavelengths.