Affiliation: | a Physics Department, Lomonosov Moscow State University, 1 Vorob`evy gory, Moscow, 119899, Russian Federation b Laser Gyro Division, POLYUS Research and Development Institute, 3 Vvedensky St., Moscow, 117342, Russian Federation c MIPT, 9, Institutskii per., Dolgoprudny, Moscow Region, 141700, Russian Federation |