Integrated quantum memories based on 151Eu3+:Y2SiO5 crystals coupled with impedance-matched optical cavities are demonstrated. Multiplexed quantum storage efficiencies of 80.3% and 69.8% are achieved for weak coherent pulses and telecom-heralded single photons, respectively.
- Ruo-Ran Meng
- Pei-Xi Liu
- Guang-Can Guo