This algorithm calculates output power and the beam quality (M2) depending on the beam radius, pump/resonator configuration, and special optical elements, such as, irises and Gaussian output couplers. These factors allow the calculation of the population inversion, in the laser crystal, based on a finite volume discretization grid. The time dynamic behavior of the laser is simulated by rate equations for different high and low order Gaussian modes. ASLD built-in Ray-tracing program can accurately simulate pump configuration. The following effects are taken into account: Absorption of light Scattering effects Reflection of light An efficient algorithm is used for the computation of light scattering. Thermal and structural analysis of laser crystals are needed to calculate thermal lensing effects. ASLD contains a fast and highly accurate 3-dimensional Finite Element (FE) solver. It can be applied for very long or thin lasers crystals and small pump lights with small pump radius as well. It also includes a complete 3-dimensional time dynamic analysis (by FE) which is required for the simulation of thermal lensing effects of lasers with pulsed pump light. A user friendly flexible graphical user interface (GUI) allows a flexible design of cooling and geometry of the laser crystal. The Finite Element solver takes into account the frequency dependent absorption of the laser crystal and allows to set spectrum of pump light. ASLD analyzes the stability of a solid-state laser and calculates its beam radius depending on the resonator configuration and thermal lensing effects . Description ASLD THERMAL LENSING ANALYSIS © ASLD  2010 - 2015 ASLD enables the analysis of pulse energy, pulse width, beam quality and pulse frequency of both active and passive Q-switches. ASLD also includes an accurate algorithm accounting for the physical effects of passive Q-switching with a saturable absorber. The physical properties of the saturable absorber, like ground-state and excited-state absorption cross-sections, are accounted for this purpose. Mode competition in the resonator can also be simulated by a                                                                                           dynamic mode analysis of both low and high Gauss modes. ASLD provides a tool for parameter analysis in order to optimize the design of a laser resonator. The output power, beam quality and stability diagram of a laser resonator can be plotted for a range of input parameters: Power of pump light Pump frequency shift Reflectivity of the output mirror ASLD is capable of calculating the impact of each input parameter                                                                                      variations on the above mentioned output quantities.                                                                                                                   The parameter analysis uses advanced algorithms for minimal                                                computation time and saves resonator optimization costs. ASLD PUMP SOURCE ANALYSIS  Home | Features | Simulation Services | News | Contact | Imprint  The software About ASLD Software description Graphical user interface Publications Services Software development Request demo & Price list Distributors ASLD OUTPUT POWER AND BEAM QUALITY ANALYSIS (DYNAMIC MULTI-MODE ANALYSIS DMA) ASLD LASER STABILITY AND BEAM RADIUS ANALYSIS  ACTIVE AND PASSIVE Q-SWITCHES AND SESAM  PARAMETER ANALYSIS