RT Journal Article T1 A general approach for robust integrated polarization rotators A1 Alonso-Ramos, C. A1 Halir, Robert A1 Ortega-Moñux, Alejandro A1 Cheben, Pavel A1 Vivien, Laurent A1 Molina-Fernández, Íñigo A1 Marris-Morini, Delphine A1 Janz, Siegfried A1 Xu, Dan-Xia A1 Schmid, Jens H. K1 Polarización (Luz) K1 Rotación óptica AB Integrated polarization rotators suffer from very high sensitivity to fabrication errors. A polarization rotator scheme that substantially increases fabrication tolerances is proposed. In the proposed scheme, two tunable polarization phase shifters are used to connect three rotator waveguide sections. By means of properly setting the polarization phase shifters, fabrication errors are compensated and perfect polarization rotation is achieved. Analytical conditions are shown that determine the maximum deviation that can be corrected with the proposed scheme. A design example is discussed, where the thermo-optic effect is used to provide the required tunable polarization phase shifting. Calculated 40dB extinction ratio is shown in presence of fabrication errors that would yield a 4dB extinction ratio in the conventional approach. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only. PB International Society for Optics and Photonics YR 2013 FD 2013 LK http://hdl.handle.net/10630/5481 UL http://hdl.handle.net/10630/5481 LA eng NO C. Alonso-Ramos ; R. Halir ; Al. Ortega-Moñux ; P. Cheben ; L. Vivien ; Iñ. Molina-Fernández ; D. Marris-Morini ; Si. Janz ; D.-X. Xu ; J. Schmid; A general approach for robust integrated polarization rotators . Proc. SPIE 8781, Integrated Optics: Physics and Simulations, 878109 (May 7, 2013); doi:10.1117/12.2016845. NO The authors want to aknowledge Universidad de Málaga alaga, Campus de Excelencia Internacional Andalucia Tech for their support. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 ene 2026