POLARIZATION BEAM SPLITTER USING ASYMMETRIC POWER SPLITTING AND MULTIPATH INTERFEROMETRY
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Oct 2, 2023
filing date -
Oct 2, 2023
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Abstract
A polarization beam splitter includes an input port, first and second output ports, and a polarization splitting region coupled between the input port and the first and second output ports. The input port is adapted to receive guided optical signals that are polarization multiplexed, including a transverse electric (TE) optical signal and a transverse magnetic (TM) optical signal. The polarization splitting region includes a pattern of at least two materials having different refractive indexes. The pattern is shaped to demultiplex the TE and TM optical signals by directing a first power majority of the TE optical signal received at the input port to the second output port via asymmetrical power splitting while directing a second power majority of the TM optical signal received at the input port to the first output port via multipath interferometry.
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