BONGRAND , Isabelle

A coherent model of cladding Brillouin scattering (CBS) is proposed. This model describes both the so-called (spontaneous) guided acoustic wave Brillouin scattering (GAWBS) in the low field limit, and the 'long-range acoustic interaction' observed in solitonic fibre transmissions. The coupling of CBS with the optical Kerr effect is discussed.

The nonlinear dynamics of cw-pumped Brillouin long-fiber ring lasers that contain a large number of longitudinal modes N beneath the Brillouin gain curve is controlled by a single parameter, namely, the Stokes feedback R. Below R_crit , a stable train of dissipative solitonic pulses is spontaneously structured at the round-trip frequency f_r...