Nonclassical Optical Bistability and Resonance-Locked Regime of Photon- Pair Sources Using Silicon Microring Resonator

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We generate correlated photon pairs in an all-pass silicon microring resonator using continuous-wave pumped spontaneous four-wave mixing and we characterize in detail the optical bistability in the non-classical single-photon regime. Special attention is given to the resonance-locked method by balancing the pump-induced heating and the active off-chip cooling, leading to stable operation of the photon-pair source. The maximal coincidence rate of 20.53 ± 0.34 Hz, maximal coincidence-to-accidental ratio of 654 ± 125, and minimal zero-delayed heralded second-order correlation of 0.14 ± 0.09 are achieved. The wavelengths of photon pairs remain unchanged at different pump power, indicating that our source is more compatible with the common communication systems than those using conventional on-resonance strategies, that tunes the pump wavelength. This work not only experimentally validates the nonclassical bistability behaviors, but also puts forward a simple method of pump-resonance matching for high-quality performance.
Original languageEnglish
Article number034007
JournalPhysical Review Applied
Volume11
Issue number3
Number of pages10
ISSN2331-7019
DOIs
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI
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