products 27
softwAre feature uses a beamlet-based, diffraction
propagation algorithm to include diffraction
software release provides effects through the entire optical system
faster optimisation design. BSP delivers greater accuracy than
using exit-pupil diffraction computations, or
beam propagation based on FFT or angular
spectrum methods. Systems with astigmatic
beams, polarised input optical fields, low
f-numbers (e.g., microlithography lenses), or
non-contiguous pupils are accurately analysed
with BSP. The feature is also useful for near-
field diffraction analysis and for optical systems
where the amplitude or phase is modified near
the focus, such as with a grating, phase plate,
Optical Research Associates has released or spatial filter. Determining appropriate inputs
the latest version of its Code V optical design for any beam propagation algorithm can be
software, which provides faster optimisation challenging, but BSP solves this by including
of complex optical systems by taking full a pre-analysis feature, which automatically
advantage of parallel processing on multicore provides appropriate input recommendations
architecture CPUs. for a specific lens system, including input
In particular, both of its local and global field sampling, resampling and output grid
optimisation routines in the release of characteristics. Using pre-analysis, BSP will
Code V 10.0 are now enabled for multicore also estimate an execution run time for your
operation. Optical designers can solve the most lens system.
complex lens design problems in a fraction of In addition, Code V 10.0 delivers expanded
the time needed using a single processor. language options with the introduction of
Code V 10.0 also offers improved accuracy French and German versions of its user
and ease of use for diffraction analysis. Its interface.
new Beam Synthesis Propagation (BSP) www.opticalres.com
lAser systems
scan head and software for sizes and working areas. Two configurations
increased flexibility are available: the Variable Spot Size,
GSI Group’s Laser Division has released a which provides up to x2.8 beam expansion
scan head control system and software for capability and can be fitted with an in
the JK125 and JK300. line camera adaptor, which will accept a
This system enables greater control and standard C-mount camera; and the Fixed
flexibility as well as reduced production Spot Size, which will accept a CS-mount
times for repeatable high speed, high camera fitted to the rear of the fibre output
precision, seam and spot welding. The new housing. A range of f-theta objective lenses
software is a single application allowing are available to provide spot sizes from
control and management of all laser and 100µm to 750µm and a usable working
scan head programming functions. area from 25 x 25mm to 150 x 150mm.
This product incorporates the scan The SHUI was developed by GSI to
head and the software, the Scan Head eradicate the need for separate programmes
User Interface (SHUI), which is integrated for the laser and scan head and has been
into the LaserView SE software, enabling specifically designed for laser welding
seamless programmability of scan head and applications, rather than the more traditional
laser parameters through a single operator marking applications for which scan heads
screen. are predominantly used. This is a unique,
The Scan Head has been designed to pre-emptive and self optimising system
enhance and complement the current which effectively produces two program lists
JK125 and JK300 series of pulsed lasers, from a single, user generated graphical scan
enabling the beam to be deflected precisely head profile.
and quickly throughout a range of spot www.gsiglasers.com
EOfeb09 pp28-33 Products.indd 27 17/2/09 16:53:20
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