× Table 1.. Comparison of Performances of Some SiN Waveguide-Based Polarization Handling Devices. Ref. Platform Band Length (?m) IL at Centered Wavelength (dB) Bandwidth (nm) Technology Description Experiment or Not [28 ]. SiN-Si multilayer. C. 576. < 1.5(TE),< 1.5(TM). 80 ( IL < 1.5 dB, CT > 19 dB). PSR function in Si layer, working by mode evolution, tip str...