An Asymmetrical SiNx-Based Polarization Beam Splitter at 810 nm

An asymmetrical SiN
x
-based polarization beam splitter at 810 nm are proposed and fabricated in this work. The simulation results show that the extinction ratio of > 20 dB and the insertion loss of < 0.6 dB can be achieved for both transverse-electric (TE) and transverse-magnetic (TM) polarizations at 810 nm.