Oner, B.B.Üstün, K.Kurt H.Okyay, Ali KemalTurhan-Sayan G.2016-02-082016-02-08201510944087http://hdl.handle.net/11693/23947In this article, we propose a large bandwidth mode-order converter design by dielectric waveguides with equal lengths but different cross-sectional areas. The efficient conversion between even and odd modes is verified by inducing required phase difference between the equal length waveguides of different widths. Y-junctions are composed of both tapered mode splitter and combiner to connect mono-mode waveguide to multi-mode waveguide. The converted mode profiles at the output port show that the device operates successfully at designed wavelengths with wide bandwidth. This study provides a novel technique to implement compact mode order converters and direction selective/sensitive photonic structures. © 2015 Optical Society of America.EnglishBandwidthConverter designCross sectional areaEven- and odd-modeMulti-mode waveguidesNovel techniquesPhase differencePhotonic structureWide bandwidthWaveguidesArticle10.1364/OE.23.003186