Pavlov, N. G.Lihachev, G.Koptyaev, S.Lucas, E.Karpov, M.Kondratiev, N. M.Bilenko, I. A.Kippenberg, T. J.Gorodetsky, M. L.2017-02-082017-02-082017-02-08201710.1364/OL.42.000514https://infoscience.epfl.ch/handle/20.500.14299/134222WOS:000393307500037We present a novel compact dual-comb source based on a monolithic optical crystalline MgF2 multi-resonator stack. The coherent soliton combs generated in the two microresonators of the stack with the repetition rate of 12.1 GHz and difference of 1.62 MHz provided after heterodyning a 300 MHz wide radio frequency comb. An analogous system can be used for dual-comb spectroscopy, coherent LIDAR applications, and massively parallel optical communications. (C) 2017 Optical Society of Americatext::journal::journal article::research article