  With the advances in on-chip photonic integrated circuits, compact and wide
bandwidth mode converts are required for mode division multiplexing and
demultiplexing. We propose a design for a highly compact and easy to fabricate
mode converters that converts TE0 to TE1 and vice versa on Silicon on Insulator
(SOI) platform with high efficiency over a wide bandwidth of operation using
simple arc bend waveguide structure. Coupled mode theory is utilized for
analysing the conversion within the device, and FDTD simulations have been
performed to verify the results. Mode conversion efficiency of 98.65% for TE0
to TE1 and 99.1% for TE1 to TE0 mode conversion with a device footprint of 10.5
um by 2 um have been reported in this work.
