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R E L E A S E N O T E S O F V I R T U A L L A B TM 5
1 Version 5.11
Release Date
Update Servie
Installation
Deember 2014
4th quarter 2014 is required.
VirtualLabTM 5.8 (basi installation) required.
The main fous of the development of VirtualLabTM 5.11 has been the
improvement of the split step propagation tehnique. The split step propagation an be used to analyze GRIN media, optial bers and waveguides.
The new version enable the user to visualize also the eld inside the index
modulated region. VirtualLabTM 5.11 allow the absolute positioning of light
path elements. Also a searh engine within the VirtualLabTM atalogs was
implemented and an be used by the ustomer to nd the material, medium,
omponent, light soure, et. whih shall be used in his optial setup.
VirtualLabTM 5.11 provides the following new features and enhanements. Several new appliation senarios and tutorials are available via
www.lighttrans.om.
• Positioning/Toleraning
– All light path elements an be positioned absolutely, i.e. relative to
the oordinate system of the lab (whih means the light soure).
• Light Path Diagram
– The aperture sizes within a subsystem omponent are used for visualization of the subsystem omponent within the 3D view.
– The automati propagation operator will log the time span how
long analysis of propagation method take.
– The split step propagation logs the progress during simulation.
• Propagation
– The new auray ontrol of the split step propagation allows an
easy-to-use aess to the numerial parameters of the propagation
tehnique. All auray parameters an be modied by the parameter run to hek the numerial onvergene of the ongured simulation tehnique.
– The split step propagation needs to integrate the refrative index of
the underlying medium for the analysis of the medium. This integration an be ongured to use a trapezoid approximation. This
integration is muh faster than the numerial evaluation of the refrative index integral. For z-independent media the trapezoid integration is no approximation.
– The split step propagation is performed by parallel omputing.
• Light Soures
– Light soures allow the diret speiation of elliptial polarization.
The Jones vetor an be dened by angle and eentriity of the
polarization ellipse.
R E L E A S E N O T E S O F V I R T U A L L A B TM 5
– The multi-mode Gaussian light soure allows to dene Rayleigh
length or divergene as ahromati parameter.
– The table listing the spetral values within the light soure edit dialog shows the indies for eah wavelength.
• Detetors
– The opy-from tool (via button) of the size and resolution for detetors an now also handle the lateral position the seletion whih
shall be opied. The user need to dene whether the lateral shift
shall be also opied.
• Analyzer
– The eld inside omponent analyzer for the split step method an
be used to visualize the eld inside inhomogeneous regions within
the system.
– The programmable grating analyzer an be used to dene userdened evaluation funtions on the results of the rigorous analysis
results of 2D gratings. The results of the analyzer an also be used
within the parametri optimization of VirtualLabTM.
• Parameter Run
– The transition points of a transition point list interfae an be varied
in the parameter run.
– The height, width and thikness of the bounding box of the programmable omponent an be varied via parameter run.
• Lighting Toolbox
– The handling of the look-up tables for rigorous alulated results of
gratings within the Lighting toolbox is improved signiantly. This
enable a faster evaluation of the rigorous results as well as the possibility to store also large look-up tables on the hard dis.
• Programming
– Within the LightTrans.Programming.dll a new methods for alulat-
;
ing the Fresnel oe ient matries in interfae oordinates is available (the funtion needed to be updated).
• Design
– The logging within IFTA design an be ompletely disabled. This
an result in a signiant performane improvement depending on
the design onguration.
• Media, Materials and Interfaes
– Within the media atalog the Fiber medium is available. It allows
the speiation of the diameter of the ber, the ladding material
as well as the ore medium. Several internal algorithms use these
parameters for a fast analysis of the ber medium.
R E L E A S E N O T E S O F V I R T U A L L A B TM 5
• Views and Data Arrays
– There are two new olor look-up tables added whih an be used
espeially for ontour plots.
– The onversion tool for 1D data arrays allow to onvert the one dimensional data array ontaining more than one subset into a two
dimensional data array.
– The dialog of the transition point list interfae allow the import
from/export to data arrays. This enable a more onsistent usage
of VirtualLabTM data types.
• Handling
– The nodes within the light path diagram are snapping to the underlying grid.
– To ensure a user friendly handling of atalogs a searh by name
engine is available within the atalog view.
– For Fourier transformations performed in the main window the user
has to dene whether an analytially stored spherial phase fator
shall be sampled or removed before performing the transformation.
– For exporting 1D elds into bitmap format the same manner as for
2D elds is used now. This allows more easy further proessing.
• Catalogs
– Within the LightTrans dened omponent atalog some Aspherion
SPA(TM) lenses are inluded.
– VITRON IG glasses are available in the LightTrans dened materials
atalog.
• Calulators
– The modulation depth alulator an be used to alulate the modulation depth for a spei fabriation task. The user need to enter
the fabriation parameter and VirtualLabTM alulates the resulting
modulation depth by the TEA approximation.
– The vetor & oordinate system viewer an be used to visualize the
oordinate system orientation in dependeny of the di erent angle
denitions available within VirtualLabTM. The viewer is available in
the alulators menu.
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