Low Loss and Compact Silicon TE-Pass Waveguide Polarizer

A silicon photonic TE-pass polarizer is demonstrated using serpentine 180° adiabatic bends, in an MPW foundry process. By choosing the number of bends, a designer can trade TM extinction versus TE loss. 16 dB extinction had 0.37 dB loss. 26 dB extinction had 0.78 dB loss.