Solitary beam propagation in a nonlinear optical resonator enables high-efficiency pulse compression

摘要: We experimentally demonstrate that temporally confined spatial solitons can be realized by space-time coupled propagation of strong femtosecond pulses in a nonlinear optical resonator, consisting periodic layered Kerr media (PLKM). A universal relationship between the characteristic beam size and critical phase solitary modes is revealed, defining different regions soliton stability. Taking advantage unique characters these modes, we supercontinuum generation pulse compression initially 260 μJ, 170 fs down to 22 single-stage PLKM resonator with an efficiency >90%.