Design of a broadband polarization controller based on silicon nitride-loaded thin-film lithium niobate

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Date
2023-10-23
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Mark
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Optica Publishing Group
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Abstract
A novel design of a polarization controller based on "etch-less" Si3N4-loaded thin film LiNbO3 is described. Broadband operation in the spectral range between 1.45 and 1.65 mu m is achieved by using a mode evolution TM/TE splitter/converter, two mode evolution 3-dB couplers, and two electro-optic phase shifters. Numerical simulations show that the on-chip insertion loss should not exceed 1 dB. A single TE-mode output can be adjusted by applying control voltages lower than 10 V for an arbitrary input polarization state.
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OPTICS EXPRESS. 2023, vol. 31, issue 22, p. 35542-35551.
https://opg.optica.org/oe/fulltext.cfm?uri=oe-31-22-35542&id=540655
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Peer-reviewed
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en
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(C) Optica Publishing Group
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