Effects of Different Pump Power Levels on Laser Output Characteristics

This paper investigates the influence of different pump power levels on laser output characteristics under constant fiber length conditions. Specifically, we examine how varying pump power affects laser output power, spectral properties, and beam quality factors, while analyzing the underlying physical mechanisms. Our research demonstrates that as pump power increases, laser output power correspondingly enhances, but spectral bandwidth and beam quality factors undergo significant modifications. These findings carry substantial theoretical importance and practical application value for laser design and optimization. Code implementation typically involves solving rate equations through iterative methods (e.g., Runge-Kutta algorithms) to simulate power evolution along the fiber. Key parameters include pump absorption coefficients, emission cross-sections, and energy level lifetimes. Spectral characteristics can be modeled using Fourier transform techniques applied to the simulated electric field, while beam quality factors (M²) require calculating beam propagation parameters through ABCD matrix transformations.