Polarization insensitive single mode Al2O3 rib waveguide design for applications in active and passive optical waveguidesA. Özden, M. Demirtaş and F. AyJ. Eur. Opt. Soc.-Rapid Publ., 10 (2015) 15005DOI: https://doi.org/10.2971/jeos.2015.15005