Power output correction model of narrow linewidth ring fiber laser based on Rayleigh scattering

The distributed weak feedback mechanism based on Rayleigh scattering in fiber can effectively reduce the linewidth of laser, but also change the power characteristics of laser. In this paper, a power output correction model of narrowlinewidth single-frequency fiber laser based on Rayleigh scattering is established. The simulation and analysis of the pump light and fiber length on the output power characteristics of the laser during the laser resonance are in good agreement with the experimental results, indicating that the power correction model is effective for narrow-linewidth fiber lasers based on Rayleigh scattering.