Interaction effect of plane electromagnetic waves in the Born-Infeld nonlinear electrodynamics

We calculate the interaction of plane electromagnetic waves in accordance w ith the Born-Infeld nonlinear electrodynamics in the vacuum segment of a ri ng laser, We show that at the present level of development in laser physics , it is possible not only, to measure the direct impact of the quantum vacu um polarization effect on the generation frequencies of weak electromagneti c waves propagating in opposite directions in a ring laser but also to esti mate the contribution of the Born-Infeld nonlinear electrodynamics to this effect.