Commod Pro

　　Beam generation

　　Commod Pro performs beam generation for either stable or unstable cavities. Longitudinal pumping is also performed prior to beam generation. Commod Pro can simulate multimode cavities for CW, passive and active Q-switched modes.

　　Coherent beam propagation

　　Commod Pro propagates any kind of coherent beam. The beam propagation, based on Fourier transform method, takes into account diffraction, spatial and temporal dispersion and shift, and Kerr effect. Commod Pro can propagate ultra-short pulses considering streching and compressing effects.

　　Beam amplification

　　Commod Pro manages 4 level solid state amplifiers with rod and slab geometries; gradient refractive index is also taken into account. Gain profile and thermal and mechanical effects are simulated by Spir and Thermopt respectively. Frantz and Nodvik model is used for amplification and gain saturation.

　　Frequency conversion

　　Frequency conversion is one of the most effective strength of Commod Pro. Indeed, Commod Pro performs intra-cavity and extra-cavity frequency conversion considering any kind of conversion, OPO, DFG, ppln…

　　List of Commod Pro components

　　- Sources (circular, rectangular, speckle, complex, experimental, complex)

　　- Amplifiers and dynamic amplifiers (disk, rod, slab, refractive index gradient)

　　- Frequency converters (type I, type II, OPA, SFG, DFG, SHG, OPO, ppln)

　　- Apodizer (file, analytic, gaussian)

　　- Saturable absorber (slow and fast)

　　- Mirrors (flat, spherical, cylindrical, phase conjugaison)

　　- Thick and thin lens (spherical, cylindrical, Fresnel)

　　- Polarizer and birefringent polarizer

　　- Pockels cell

　　- Prisms

　　- Grating (flat and focusing)

　　- Quartz rotators and Faraday rotators

　　- Spatial filter

　　- Wave plate (random, bi-value, kinoform)

　　- Wavefront corrector (gaussian, file)

　　- Focuser

　　- Spatial and multi-pass filters

　　- Stimulated Raman/Brillouin scaterring

　　Virtual components

　　This is a very important feature of Commod Pro. Virtual components allow you to develop your own transfer function to simulate either new components or physical beam interactions and to implement them in Commod Pro. You will take advantage of Commod Pro capabilities and you will bring your own expertise in it. At the initial stage you create your virtual component and can insert it in the optical chain using Commod Pro system building interface. During the calculation the interaction between Commod Pro and your virtual component will be carry on througth output Commod Pro files exchange.

　　Outputs

　　- Beam characterization along the system (energy, optical and mechanical distances, wavelengths, modulation rate, peack intensity, beam position....)

　　- Beam temporal profile

　　- Beam intensity and phase profile for each step of time and component (two polarizations)

　　- Fluence on each component

　　- Residual gain

　　- Histogram of fluence

　　- Depolarization

　　- ......

　　I/O Characteristics

　　- Export all results (spatial, temporal and gain profiles) as ASCII files for later data processing. Other formats are available.

　　- Binary file

　　- .DAT ASCII file containing system information

　　Operating system

　　Windows 98 / NT / 2000 / Vista / Seven