Evolution of the nth Stokes-wave due to stimulated Raman scattering in single-mode fibers

Abstract

The evolution of the nth analytical solutions of commonly used Raman equations, analyzed by numerical simulation and experimentally, is reported. In the experiment, a 1 km undoped single-mode fiber was pumped with an ytterbium doped fiber laser system (FL) in continuous wave regime at 1064 nm in a free running configuration. We showed that it is possible to obtain up to the nth power thresholds and the maximum power for each Stokes wave by using compact analytical solutions as a first approximation in a simple, quick process. #

Determination of spectral limits imposed by four-wave mixing and amplified spontaneous emission in the 1550 nm region

“…Figure 10 shows the values of optimum power in a system limited by FWM, for − < < ⋅ − D 2 2ps (km nm) 1 the optimum power is between 0.1 to 0.4 mW. Note that the values are not sensitive to number of channels and they are far from the power threshold of stimulated Brillouin and Raman scattering [15][16][17][18][19].…”