Ultratunable Quantum Frequency Conversion in Photonic Crystal Fiber

K. A.G. Bonsma-Fisher, P. J. Bustard, C. Parry, T. A. Wright, D. G. England, B. J. Sussman, P. J. Mosley

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Quantum frequency conversion of single photons between wavelength bands is a key enabler to realizing widespread quantum networks. We demonstrate the quantum frequency conversion of a heralded 1551 nm photon to any wavelength within an ultrabroad (1226-1408 nm) range in a group-velocity-symmetric photonic crystal fiber, covering over 150 independent frequency bins. The target wavelength is controlled by tuning only a single pump laser wavelength. We find internal, and total, conversion efficiencies of 12(1)% and 1.4(2)%, respectively. For the case of converting 1551 to 1300 nm we measure a heralded g(2)(0)=0.25(6) for converted light from an input with g(2)(0)=0.034(8). We expect that this photonic crystal fiber can be used for myriad quantum networking tasks.

Original languageEnglish
Article number203603
JournalPhysical Review Letters
Issue number20
Publication statusPublished - 11 Nov 2022

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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