Passive Multiple Beam Combination in Optical Fibers via Stimulated Brillouin Scattering

摘要

The goal of this research was to demonstrate the feasibility of passively combining multiple laser beams using Stimulated Brillouin Scattering (SBS) in a long multimode optical fiber. This method of combination employed a 'Gatling gun' fiber array that allowed several collimated beams to be focused by a lens into an optical fiber. The ability to combine four single-mode off- axis input beams using a fiber array and a long multimode optical fiber was demonstrated. The Stokes beam generated by the four off-axis input beams was found to be near Gaussian with an M(2) value of.