  In this paper we present universal broadband multi-resonator quantum memory
(MR-QM) based on the spatial-frequency combs of the microresonators coupled
with a common waveguide. Here we found new Bragg-type impedance matching
condition for the coupling of the microresonators with a waveguide field which
provides an efficient broadband quantum storage. The obtained analytical
solution for the microresonator fields enables sustainable parametric control
of all the memory characteristics.
