Abstract

Ideal quantum frequency conversion (QFC) devices enable wavelength translation of a quantum state of light while preserving its essential quantum characteristics, namely photon statistics and coherence. However, the generation of noise photons due to spontaneous scattering of the strong classical pump used in the three-wave mixing process can limit QFC fidelity. We experimentally and theoretically characterize the noise properties of a difference- frequency generation device for QFC and find that fabrication errors in the quasi-phase-matching grating enhance generation of noise photons by parametric fluorescence.

© 2010 Optical Society of America

Low random duty-cycle errors in periodically poled KTP revealed by sum-frequency generation

Felix Mann, Helen M. Chrzanowski, and Sven Ramelow
Opt. Lett. 46(13) 3049-3052 (2021)

Efficiency and phase of optical parametric amplification in chirped quasi-phase-matched gratings

C. R. Phillips and M. M. Fejer
Opt. Lett. 35(18) 3093-3095 (2010)

Frequency downconversion for a quantum network

Yu Ding and Z. Y. Ou
Opt. Lett. 35(15) 2591-2593 (2010)

Quasi-phase-matched concurrent nonlinearities in periodically poled KTiOPO₄ for quantum computing over the optical frequency comb

Matthew Pysher, Alon Bahabad, Peng Peng, Ady Arie, and Olivier Pfister
Opt. Lett. 35(4) 565-567 (2010)

Efficiency pedestal in quasi-phase-matching devices with random duty-cycle errors

J. S. Pelc, C. R. Phillips, D. Chang, C. Langrock, and M. M. Fejer
Opt. Lett. 36(6) 864-866 (2011)