Abstract

Polarization controllers are becoming increasingly important for various applications, including adaptive polarization stabilization and Stokes-vector modulation in optical networks, RF photonics, bio-imaging and sensing, and quantum optics. In order to reduce the size and cost of conventional bulky optical components, various types of integrated polarization controllers have been researched over the years. Among others, simple straight-line scheme consisting of integrated polarization converter (PC) and polarization- dependent phase shifter (PD-PS) has been proposed and implemented on InP platforms [1-3]. These previous demonstrations, however, employed identical epitaxial layers for both PC and PD-PS sections, which has limited the performance.

© 2017 Japan Society of Applied Physics, Optical Society of America