Abstract
Quantum memories for light are important devices in quantum information science, in particular for applications such as quantum networks and quantum repeaters [1]. It has been predicted that multimode quantum memories able to store independently multiple modes would greatly help the scaling of quantum networks by decreasing the entanglement generation time between remote quantum nodes [1]. Current research focuses mostly on time multiplexing in rare-earth doped crystals and in spatial multiplexing in atomic gases. Beyond these demonstrations, rare-earth doped crystals, thanks to their large inhomogeneous broadening, represent a unique quantum system which could also add another degree of freedom for multiplexing, the storage of multiple frequency modes [2]. In this contribution, we report on the first demonstration of quantum storage of a frequency multiplexed single photon into a laser-written waveguide integrated in a Pr3+:Y2SiO5 crystal. The great advantage of using a confined waveguide for this task is that the power required to prepare the quantum memory is strongly reduced due to the increased light-matter interaction in the waveguide. This enables simultaneous preparation of several memories at different frequencies, with a moderate laser power.
© 2019 IEEE
PDF ArticleMore Like This
Shi-Hai Wei, Bo Jing, Xue-Ying Zhang, He-Qing Wang, Hao Li, Li-Xing You, Zhen Wang, You Wang, Guang-Wei Deng, Hai-Zhi Song, Daniel Oblak, Guang-Can Guo, and Qiang Zhou
FM4M.2 CLEO: QELS_Fundamental Science (CLEO:FS) 2021
P. S. Michelberger, J. Nunn, T. F. M. Champion, M. R. Sprague, K. Kacmarek, D. Saunders, W. S. Kolthammer, X.-M. Jin, D. G. England, and Ian A. Walmsley
FTu2A.5 CLEO: QELS_Fundamental Science (CLEO:FS) 2014
Hao Yu, Chenzhi Yuan, Ruiming Zhang, Zichang Zhang, You Wang, Haizhi Song, Yong Wang, Hao Li, Lixing You, Guangwei Deng, and Qiang Zhou
T2F.5 Asia Communications and Photonics Conference (ACP) 2019