Diffraction mode selection in planar lasers with Bragg resonators Naum Ginzburg, Alexander Sergeev, Ekaterina Kocharovskaya, Andrey Malkin, Ekaterina Egorova and Vladislav Zaslavsky ITM Web Conf., 30 (2019) 06012 Published online: 27 November 2019 DOI: 10.1051/itmconf/20193006012