Stimulated Brillouin Scattering in High-Power Photonic Crystal Fiber Lasers in Different Pump Schemes

We present in this paper the special structure of photonic crystal fiber (PCF), the temperature-dependent Yb3+ photonic crystal fiber lasers model with stimulated Brillouin scattering (SBS) is presented by solving the steady-state rate equations with the (SBS) in the linear cavity. The numerical results show that the pump power, laser power and stokes powers propagating along axial positions are obtained by using the finite difference method and shooting method. The comparison results of the photonic crystal fiber laser model without temperature factor, the output powers and the SBS threshold powers in different pump schemes are obtained in the simulation paragraph. The numerical results show that the SBS threshold power in the two-end pump scheme is more noticeable than other pumps schemes.