A self-consistent analysis of end-pumped Nd:Ti:Li NbO3 microchip waveguide lasers based on the FFT-BPM has proposed, The algorithm of the model allows to describe the laser gain and pump absorption in terms of the complex atomic susceptibility for the case of the Nd3+ ions, considering the interference effects between the forward and backward light waves, the population inversion longitudinal and transversal spatial effects can be simulated. The laser characteristics of the Nd:Ti:LiNbO3 waveguide laser correlate well,vith the experimental data and theoretical results, The design rules for the optimized microchip laser are also developed by using the proposed model.
