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Quantum Frequency Bridge: High-Accuracy Characterization of a Nearly-Noiseless Parametric Frequency Converter
Published
Author(s)
Ivan Burenkov, Sergey Polyakov
Abstract
We demonstrate an efficient and inherently ultra-low noise frequency conversion via a parametric sum frequency generation. Due to the wide separation between the input and pump frequencies and the low pump frequency relative to the input photons, the upconversion results in only $\approx$100 background photons per hour. To measure such a low rate, we introduced a dark count reduction algorithm for a transition edge sensor.
Burenkov, I.
and Polyakov, S.
(2017),
Quantum Frequency Bridge: High-Accuracy Characterization of a Nearly-Noiseless Parametric Frequency Converter, Optics Express, [online], https://doi.org/10.1364/OE.25.000907
(Accessed October 7, 2025)