Cryogenic and large-base Fabry-Perot cavities for ultra-stable laser systems Denis S. Kryuchkov, N.O. Zhadnov, K.S. Kudeyarov, I.A. Semerikov, K.Yu. Khabarova and N.N. Kolachevskiy EPJ Web Conf., 190 (2018) 04011 Published online: 26 September 2018 DOI: 10.1051/epjconf/201819004011