Multiphysics Laser Simulation Software

ASLD laser simulation software has been designed and implemented using state-of-the-art programming techniques. The algorithms used for laser simulation have been specifically formulated for accurate modelling of physical effects, as well as fast execution. They have been developed through intensive research and published in numerous professional journals and conferences.
ASLD performs simulations based on the latest mathematical algorithms for modeling laser devices. ASLD provides tailor-made answers to the development challenges of solid-state lasers and uses specifically developed numerical tools. These are selectively used for optimization of lasers and meeting very specific criteria and tolerances.
ASLD allows user to simulate following analyses:

Design and the simulation of multi-level solid-state laser resonators and amplifiers
Various materials like Nd:YAG, Yb:YAG, Er:YAG, Er:glass, or Tm,Ho:YAG, etc.
Calculation of output power, beam quality, pulse-width, and repetition frequency
Stability analysis (polarization dependent)
Dynamic Multi-Mode Analysis (DMA) of high and low order laser modes
Rigorous calculation of mechanical strain, stress and birefringence
Resonators with multiple crystals
Active & passive Q-switch lasers with saturable absorbers Cr:YAG
Pulsed lasers with SESAM
High power lasers, like thin disk (slab) laser with different shapes
BPM (Beam Propagation Method) for amplifiers
Solid-state laser multipass laser amplification
Ultra-short and chirped pulse amplification
Kerr lens and Gain Guiding effects
Polarization effects
Thermal lensing effects, wavefront distortion
Second harmonic generation SHG
Pumping design (pump spectrum, pumping geometry, pulsed pumping, etc.)
Super Gaussian Modes for analysis of high power lasers
Resonators with multiple crystals
Parameter analysis
Ray tracing for pump light configuration

Selected Publications

Papers references originating from scientific collaboration between ASLD Software Company and the University of Erlangen:

Springer R., Alexeev I., Heberle J., Pflaum C., "Numerical simulation of short laser pulse amplification",
Journal of the Optical Society of America B-Optical Physics 36 (2019), p. 717-727, ISSN: 0740-3224,
DOI: 10.1364/JOSAB.36.000717
Springer, R., Pflaum, C., ”Dynamic mode analysis with arbitrary rate equations”, Proceedings of SPIE (2018)
Springer, R., Alexeev, I., Heberle, J., Pflaum, C., ”Simulation of energy buildups in solid-state regenerative amplifiers for 2-micron emitting lasers”, Proceedings of SPIE Vol. 10511 (2018)
Alexeev, I., Pflaum, C., Schmidt, M., ”New approaches in teaching laser engineering classes: modeling and building up a laser”, Proceedings of SPIE Vol. 10452 (2017)
C. Pflaum, R. Hartmann, Z. Rahimi , ”Modeling and simulation of ultra-short pulse amplification”, Proceedings of SPIE Vol. 9726, (2016)
Pflaum, C., “Optical path difference of slanted edge diode-pumped Yb:YAG/YAG thin-disk laser”, Proc. SPIE Vol. 8959 (2014)
Pflaum, C., Rahimi, Z., “Modeling of semiconductor saturable absorber mirrors using dynamic mode analysis”, Proc. SPIE 8600, doi:10.1117/12.2004005 (2013)
Rahimi, Z., Pflaum, C., “Simulation of solid-state lasers with composites and ceramic crystals”, Proc. SPIE 8599, doi:10.1117/12.2004076 (2013)
Pflaum, C., Rahimi, Z., Fan, F., “Dynamic multi-mode analysis of passive Q-switched lasers”, Proc. SPIE 8236, 823612 (2012)
Wohlmuth, M., Pflaum, C., “Analysis of frequency dependent pump light absorption”, Proc. SPIE 7913, 791303 (2011)
Wohlmuth, M., Pflaum, C., “Dynamic multimode analysis of high-power 3-level lasers”, Physica Procedia, Vol. 5, Part 2, p-p 291-298, LANE 2010
Wohlmuth, M. et al., “Dynamic 3D modeling of solid state laser resonators using a coupled thermo-optical finite element analysis”, Proc. SPIE 7578, 75782H; doi:10.1117/12.841930 (2010)
Wohlmuth, M., Pflaum, C., et al., “Dynamic multimode analysis of Q-switched solid state laser cavities”, Optics Express, Vol. 17, Issue 20, pp. 17303-17316 (2009)
Wohlmuth, M., Pflaum, C., et al., “Finite Element Simulatin of Solid State Laser Resonators”, Proceedings of SPIE 7194:16-1 (2009)