Here we show photon pair generation from ring resonator and waveguide structures in a hybrid silicon-BTO on insulator platform with a pulsed pump. Our analysis of single photon and coincidence generation rates show that Spontaneous Four-Wave Mixing is comparable to that expected from SOI devices of similar characteristics and find a γeff of (14.7 ± 1.3) and (2.0 ± 0.3) MHz/mW² for ring resonator and waveguide structures respectively.
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Marchant et al. (2024) studied this question.
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