Characterization of a waveguide Mach-Zehnder interferometer using PDMS as a cover layerS. M. Lindecrantz, J.-C. Tinguely, B. Singh Ahluwalia and O. G. HellesøJ. Eur. Opt. Soc.-Rapid Publ., 10 (2015) 15020DOI: https://doi.org/10.2971/jeos.2015.15020