6 August 2023
Proposes co-optimization method to enhance nonlinear photonic devices
Designs compact silicon cavity with 1.1MHz pair generation rate
Achieves high coincidence-to-accidental ratio of 162
Interprets device physics with envelope function model
Provides path to scalable quantum light sources on chips
Inverse design of an on-chip cavity for nonlinear optics
This paper proposes an inverse design approach to enhance nonlinear optical processes like photon pair generation on a chip. The method co-optimizes multiple frequencies to improve field confinement and phase matching. The authors fabricate and test a compact silicon device, demonstrating efficient generation of quantum-correlated photon pairs. Their interpretable design approach could enable scalable on-chip light sources for quantum applications.
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