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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.
Proceedings of SPIE


Quantum detectors, single photon, nonlinear optics, sum frequency generation


Kuo, P. , Pelc, J. , Slattery, O. , Fejer, M. and Tang, X. (2012), Dual-channel, single-photon upconversion detector near 1300 nm, Proceedings of SPIE, [online], (Accessed June 13, 2024)


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Created November 5, 2012, Updated November 10, 2018