Dual-channel, single-photon upconversion detector near 1300 nm
Paulina S. Kuo, Jason S. Pelc, Oliver T. Slattery, Martin M. Fejer, Xiao Tang
Upconversion of 1.3-micron photons and detection using silicon avalanche photodiodes (Si APDs) can produce high photon detection efficiencies (PDEs) with low dark count rates. We demonstrate a novel two-channel device based on a phase-modulated, periodically poled LiNbO3 waveguide that mixes 1302- nm signal photons with two pump beams at 1556 and 1571 nm. Both channels showed high PDEs with very low dark counts. Using wavelength- to time-division multiplexing in this dual-channel device, we produced clock rates that exceed the timing-jitter-limited rates of a system based on one Si APD. Higher clock rates are of interest for improved quantum communication systems.
, Pelc, J.
, Slattery, O.
, Fejer, M.
and Tang, X.
Dual-channel, single-photon upconversion detector near 1300 nm, Proceedings of SPIE, [online], https://doi.org/10.1117/12.946250
(Accessed December 10, 2023)