Control of the phase characteristics of Stokes waves in a Michelson interferometer with SBS mirrors

It is found that, when using stimulated Brillouin scattering (SBS) mirrors (mounted in a ring Michelson interferometer) with counterfocusing, under pumping by pulses with steep (2–3 ns) leading edges and applying Freon FC-75 as an active medium, the phase difference of the Stokes waves on the semitransparent interferometer mirror obeys the dependence Δφ = 2ΔkΔl (Δk is the difference in the magnitudes of the pump and Stokes component wave vectors and Δl is the difference in the optical arm lengths).