  A new type of integrated polarizer based on bent coupled optical waveguides
is proposed. The simplicity of the device geometry permits its realization
using only basic standard fabrication steps. A deep etched waveguide silicon
nitride TE-pass implementation has been studied using a full vector 3D mode
solver and beam propagation techniques. The characteristics of the underlying
physical mechanism bring in flexibility to the design of broadband devices
robust against fabrication tolerances. The possibility of incorporating almost
design-transparent polarizers in photonic integrated circuits is also
discussed.
