High pulse-shape fidelity realized in stimulated Brillouin scattering generator with Stokes seed injection

In order to realize high pulse-shape fidelity of stimulated Brillouin scattering, a generator with Stokes seed injection is suggested and investigated. Theoretical and experimental researches show that the SBS duration becomes longer with the increase of the seed intensity, and the best pulse-shape fidelity of above 90% is experimentally obtained.