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A compact polarization splitter and rotator based on silicon photonic wire waveguide have been developed. The splitter is based on simple directional couplers. In the fabricated splitter, the polarization extinction ratio is 23 dB and excess loss is less than 0.5 dB. The rotator consists of a silicon waveguide and an off-axis silicon oxinitride waveguide. In the fabricated rotator, efficient polarization...
We propose a novel polarization beam splitter (PBS) and rotator (PBR) for polarization diversity configuration to implement a polarization-independent silicon photonic circuit. Our PBS, which is based on a directional coupler (DC), exhibits the polarization extinction ratio (PER) of 10 dB for the C-band, and the maximum PER is 23 dB. For the PBR, which consists of a Si wire and an off-axis silicon...
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