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06/10/10
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Release of
SimuLase™, Version 1.5.
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New algorithms, improved accuracy: A new algorithm has been
implemented that leads to improved accuracy in the below bandgap absorption
as required e.g. for electroabsorption modulators. This also improves
the general accuracy of results for wide bandgap materials (wavelengths <800nm).
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Simplified settings: The settings for creating GainDatabases
has been further automated and simplified.
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SimuLase demo: New demo-version of
SimuLase™
now available.
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SimuLase manual: Updated
SimuLase manual and
example descriptionon how
to use SimuLase to model edge-emitter and
V(E)CSEL devices.
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03/12/10
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SimuLase: Now compatible with 64-bit platforms
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10/29/09
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Release of
SimuLase™, Version 1.4.
With complete set of V(E)CSEL-design tools.
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New tools: Includes new tools allowing to calculate the
operating characteristics of V(E)CSELs like input-output characteristics,
lasing wavelengths or intrinsic operating temperatures.
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New tools: Includes a new tool that allows to export
GainDatabases in a format that can be directly imported into Crosslight Inc.'s
Lastip software.
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New tools: Allows to export the structural information in
Window's Excel format.
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Improved algorithms: An improved (propriatory) method for the calculation
of the wavelength and temperature dependence of the background refractive
indicies has been implemented.
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07/13/09
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Improved Design Structure Tool: Now allows to un-do, re-do
changes to the structure. Now allows to save cloning information.
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06/03/09
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Release of
SimuLase™, Version 1.3.
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New tools: Includes a new tool allowing to calculate the surface-PL
for structures with strong cavity effects like V(E)CSELs and compare the spectra to experimentally
measured data.
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Improved tools: The Reflection/Transmission tool now allows to import
experimentally measured spectra for direct comparisons.
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02/17/09
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Release of
SimuLase™, Version 1.2.
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New tools: Includes new tools allowing to calculate the longitudinal (propagating) modes and reflection and
transmission spectra.
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New materials: Versions for the material families of AlInGaAsSb and dillute Nitride AlInGaNAs now readily available.
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New materials: Includes metallization layers (so far: Ti and Au) and anti-reflection coatings (so far
Si3N4). Other coatings and metals will be included on request.
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Some corrections for improved stability.
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10/06/08
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SimuLase-demo. New demo version available with small corrections and modifications.
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09/02/08
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Auger module now available. Manual updated to include
description of Auger calculations.
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SimuLase: New demo version available now with some corrections
to the graphics interface.
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07/07/08
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Release of SimuLase™, Version 1.1
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07/07/08
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New tool: New tool calculating the linewidth enhancement
factor incorporated.
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Export Dataset: New feature that allows to export
displayed data into ASCII-files for import into other software like Excel.
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SimuLase manual: updated to explain the new features.
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Confinement factor: corrected an error in the confinement
factor calculation that could have occured if 'Solve Drift Diffusion' was
checked or the structure included extremely thin layers.
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06/23/08
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SimuLase manual: Extended Sec. 5.7, "Possible Speed-Ups",
to give some more details for specific examples.
Updated the manual for recent changes in the program.
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Created files: SimuLase now also writes out the
strain into files named "name_TTT_strain.dat". These files are created
in the GainDatabase directory. There is currently no plotting-tool included
in SimuLase for these files.
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GainDatabase time estimate: Changed the algorithm
that estimates the time required to set up a Database.
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Drift diffusion solver: corrected an error due to which
the drift-diffusion problem was only solved in the calculation for the first entry
of the list of carrier densities.
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06/19/08
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Optical mode solver: Now, the optical confinement
factor is no longer calculated from the overlap of the mode with layers
marked as being of type 'Well'. Instead, the confinement factor is calculated
from the overlap of the mode with all layers where the confinement potential bandgap energy
is smaller than the energy corresponding to the operating 'Wavelength' as specified
on the 'Advanced' panel of the 'Design Structure' tool.
The type 'Well' or 'Barrier' is now only used for the determination of the
required subbands.
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Optical mode solver: Increased stability and accuracy
such that it should find confined modes where it previously didn't.
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Optical mode solver: Corrected error in the confinement
factor calculation that appeared for structures with graded composition ('GRINSCH-type' layers).
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Plot windows: Corrected error that occured
when zooming into plots with log-scale axis.
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Current Calculator tool: We added the
possibility to calculate for radiative losses averaged for TE- and TM-polarization
(Jrad=2/3 Jrad,TE + 1/3 Jrad,TM).
Also, changed the way the material loss or wavelength is re-set after changes in the settings.
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Gain vs. Current tool: We added the
possibility to calculate for radiative losses averaged for TE- and TM-polarization
(Jrad=2/3 Jrad,TE + 1/3 Jrad,TM).
Also, included Auger losses - if available - in the calculation.
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