https://doi.org/10.1051/epjconf/201716101004
Solid-state Raman quantum memory in whispering gallery mode resonators: signal-to-noise ratio
1
Kazan Federal University, 18 Kremlevskaya str., Kazan, 420008 Russia
2
Kazan E. K. Zavoisky Physical-Technical Institute, 10/7 Sibirsky tract str., Kazan, 420029 Russia
* e-mail: a.a.kalachev@mail.ru
Published online: 31 October 2017
The possibility of implementation of optical quantum memory via off-resonant Raman absorption and emission of single-photon pulses in rare-earth-ion-doped crystals is theoretically analysed taking into account signal-to-noise ratio at the output of the memory device. The crystal 143Nd3+:Y7LiF4 is considered as an example. It is shown that the signal-to-noise ratio can exceed unity for single-photon input pulses provided that storage and retrieval of them is performed in the doped crystals forming a microcavity such as whispering gallery mode resonator.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
