Fundamental and vortex dissipative quadratic solitons supported by spatially localized gain

Valery E. Lobanov, Aleksey A. Kalinovich, Olga V. Borovkova +1

We consider settings providing the existence of stable two-dimensional (2D) dissipative solitons with zero and nonzero vorticity in optical media with the quadratic (${\chi }^{(2)}$) non…