A.T. Reutov home address: kv. 25, korp.2, dom.25, Marshal Jukov prosp., ABSTRACT A laser structure consisting of several coupled injection lasers with saturable absorber, running in a hard mode of turn on, is discussed as optical model of a neuron. The essential properties of two principal neuron components, axon and soma, may be simulated by such a structure. The vertical cavity surface emitting lasers with two parallel p-n junctions are considered as the most convenient active elements for this structure.