A numerical model is developed to simulate stimulated Brillouin scattering (SBS) in high power single-mode fiber amplifiers. The time dependent model incorporates both laser and Stokes wave amplification and initiates the Brillouin scattering from thermal phonons. A frequency chirped laser is used as the seed to suppress SBS. Experiments with Yb-doped fiberâ€¦ (More)

Using a rapidly-chirped <formula formulatype="inline"><tex Notation="TeX">$(5\times 10^{14}~{\rm Hz}/{\rm s})$</tex> </formula> continuous-wave optoelectronic swept-frequency seed laser and two 3 W erbium-doped fiber amplifiers, we demonstrate simultaneous stimulated Brillouin scattering suppression, coherent power combining, and electronic beam steering,â€¦ (More)