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Gooch and Housego will be demonstrating Finally, the Digital Imaging Business Unit of coatings Laser Components can offer designs
products from the former Optronic Laboratories, Jenoptik’s Optical Systems division will showcase engineered to reflect p-polarised and s-polarised
including the OL 770VIS LED Total Flux products, including: ProgRes Cameras – imaging light with identical performance. These beam
Measurement System, which measures the power solutions in micro- and macroscopy for applications splitters are also optimally suited for circularly
(flux) of various lamp and light sources in accordance in industry and science for image analysis, polarised light. Other degrees of reflection are
with CIE and NIST recommendations. The system documentation and archiving; Imaging Modules – available upon request. These coatings are suitable
is comprised of the OL IS-1800H, an 18-inch sphere CCD and CMOS board-level cameras offering high for high power lasers and available for all common
that opens horizontally, and the OL 770VIS, a high- performance and best image quality for integration laser wavelengths.
speed spectroradiometer with a wavelength range of into complete imaging solutions; and Light www.lasercomponents.co.uk
380-780nm and a spectral resolution of 0.40nm. Modulators – based on liquid crystals or integrated-
Also on display will be the HSi-300 Hyperspectral optical waveguides these light modulators are Limo will highlight its g2T-scan system, which
Imaging System and OL 490 Agile Light Source. The utilised for modulation of amplitude, phase, combines two different optical concepts – the
HSi-300 delivers unmatched spectral flexibility and polarisation and spectrum as well as for pulse transformation of Gaussian beams into homogeneous
switching speed in performing multi-spectral and shaping, pulse rate reduction and fast switching of top hat profiles with a scan method involving galvo
hyperspectral imaging. It features µ-Manager plug- light from laser sources. mirrors and an f-theta objective lens.
ins, a free and open source application software www.jenoptik.com This system was constructed for laser direct
platform for control of automated microscopes on materials structuring with single-mode lasers,
multiple operating systems (Windows, Mac, etc.). Klastech-Karpushko Laser especially at 532nm and in particular for solar cell
The OL 490 is a high-speed, programmable spectral Technologies will launch its manufacturing. The German Fraunhofer ISE
source ideal for microscopy, hazardous materials 266nm laser. The new DPSS (Institute for Solar Energy Systems) has recently
identification, product testing, and several other laser provides continuous applied this technology. The institute demonstrated
applications. wave output at 266nm in ablation of thin films on the basis of 75nm SiN layer
www.goochandhousego.com power levels of up to 100mW. Christened the Verve, on Si and achieved a precise result without any
this laser utilises the company’s patented next damages to deeper layers.
The Diode Lasers business generation laser technology, which provides for In comparison to Gaussian beams, the throughput
unit of Jenoptik’s Lasers significant second and fourth harmonic conversion can be increased by utilisation with g2T profiles due
and Material Processing efficiency enhancements over traditional to smaller pulse-to-pulse spatial overlaps. Standard
division will showcase its architectures through a process of intra-cavity spot sizes of 50 x 50µm are able to structure high-
high-brightness diode laser modules with 105µm impedance matching. precision grooves with smooth edges in contrast to
fibre core diameter (NA 0.15). They are based on The result is a small 100mW 266nm laser, with the typical sawtooth patterns caused by Gaussian
the coupling of several single emitters and are reduced power consumption and minimal heat beams. Moreover, the process window is enhanced
characterised by a high level of robustness and easy generation. The Verve requires no water cooling and and thermal damages are reduced by the
handling. The main areas of application of the fibre- thanks to its ultra-compact fourth harmonic homogeneous profile.
coupled modules are optical pumping of fibre lasers generating cavity, the UV optics can be vacuum With a scan field size of 155 x 155mm standard
and direct material processing. sealed for life in a nitrogen atmosphere so there is no solar cells can be structured cost-effectively in one
Jenoptik’s Optics Business Unit will showcase need to provide a re-circulating nitrogen purge. production run with high throughput.
high precision aspherical and cylindrical components In common with all other Klastech DPSS lasers, www.limo.de
for applications such as sophisticated camera the Verve produces inherently SLM output with a
systems, laser materials processing, lithography, line width less than 1MHz. Applications include NKT Photonics will be
sensors, industrial lasers, surgical lasers, bar-code semiconductor inspection and UV spectroscopy. exhibiting the latest
laser scanners and telescopes. www.klastech.de generation of its Koheras
Jenoptik’s Optoelectronics Systems Business Unit AdjustiK narrow linewidth
will present polymer optical components Laser Components will show benchtop fibre laser. The device is based on a
manufactured for the innovative Closing Velocity its range of polarisation- single frequency distributed-feedback fibre laser
(CV) sensor system known as ‘City Safety’. The independent beam splitters. with high frequency stability and low phase and
transmitter and receiver unit of the system calculates Dielectrically-coated beam intensity noise.
the distance to objects and its approach speed from splitters separate a laser into two In addition, the company will exhibit its SuperK
signals in the range of up to 10 metres. beams. The user chooses the amount of power split line of single mode white light supercontinuum fibre
The Laser Systems Business Unit of Jenoptik’s into each beam. Until recently, however, for an angle lasers covering 400-2,400nm spectrum with optical
Lasers and Material Processing division will of incidence of 45° the user could only specify powers ranging from 100mW-4.5W. The high spatial
showcase its JenLas disk IR50 for MWT and EWT performance for one polarisation state. For coherence, but low temporal coherence of the
(Metal Wrap Through and Emitter Wrap Through). traditional high-power coatings the degree of sources make them suitable for applications
The laser combines perfect beam quality in the reflection depends on the polarisation. If 50 per cent requiring high pointing accuracy as well as speckle-
infrared wavelength range at 1,030nm with a of the p-polarised light is to be reflected, then a free illumination. The SpectraK accessory range
flexible tunable pulse length. Consequently, the beam splitter Rp=50 per cent will be used. With allows the user to access, manipulate and control
45W system is ideal for the laser drilling of silicon s-polarised light, the same coating achieves a any wavelength in the SuperK spectrum and
wafers, which then allow the efficient production reflection of Rs=82 per cent. provides flexible interfaces to users’ equipment.
of back-contact solar cells. Thanks to novel IAD (ion assisted deposition) www.nkt.dk
www.lasersystemseurope.com issue 5 • LASer SYSTeMS eUrope 17
LSEwin09 pp16-19 PWest.indd 17 2/12/09 15:46:13
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