Large bandwidth mode order converter by differential waveguides

Oner, B. B.
Kurt, H.
Okyay, A. K.
Sayan, Gönül
In 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. (C)2015 Optical Society of America


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Citation Formats
B. B. Oner, K. ÜSTÜN, H. Kurt, A. K. Okyay, and G. Sayan, “Large bandwidth mode order converter by differential waveguides,” OPTICS EXPRESS, pp. 3186–3195, 2015, Accessed: 00, 2020. [Online]. Available: