OPO-based narrow-band single-photon source for efficient coupling to quantum memories

Matthias Scholz; Lars Koch; Oliver Benson

doi:10.1117/12.809149

23 February 2009 OPO-based narrow-band single-photon source for efficient coupling to quantum memories

Matthias Scholz, Lars Koch, Oliver Benson

Proceedings Volume 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII; 71970Y (2009) https://doi.org/10.1117/12.809149
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

Narrow-band single photons represent an important resource for quantum memories due to their efficient interaction with atomic resonances. In this paper, we report on the generation of photons with 3 MHz linewidth by cavity-enhanced parametric down-conversion and demonstrate direct proof of their single-photon character by detection of heralding idler photons. Compared to a Poissonian source, a suppression of higher-order photon numbers by nearly two orders of magnitude could be achieved. Moreover, the brightness of our source exceeds previous realizations by more than a factor of 100.

Citation Download Citation

Matthias Scholz, Lars Koch, and Oliver Benson "OPO-based narrow-band single-photon source for efficient coupling to quantum memories", Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970Y (23 February 2009); https://doi.org/10.1117/12.809149

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