PRODUCT UPDATE Laser systems HighLight for metal cladding
Coherent has introduced the HighLight laser, which offers higher power for increased throughput for applications in metal cladding and heat treating. The laser system outputs 10kW (at 975nm), and can be configured to deliver a variety of interchangeable beam shapes (with widths from 1mm to 12mm, and lengths from 6mm to 36mm) to optimally match specific processing requirements. When combined with the company’s pressurised or gravity feed powder nozzles and systems,
Fibre laser micromachining system
IPG Photonics has introduced the IX-200-F, an advanced fibre laser micromachining system for general purpose, R&D, and batch-scale production applications. The multi-function system can be configured with different combinations of fibre lasers and beam delivery systems to address
the increased power level enables higher deposition rate cladding (>20 lb/h), or the use of larger spot sizes for heat treating. In addition, Coherent offers a pyrometer for monitoring work surface temperature for closed-loop control of laser power during heat treatment and cladding.
www.coherent.com
Materials Laser crystals
high-precision cutting, drilling and patterning micromachining applications.
The IX-200-F is a fully enclosed and interlocked CDRH Class 1 system, configurable with a wide range of IPG fibre lasers and integrated with the system operating hardware and software.
www.ipgphotonics.com
Laser and diodes Talon 355-15 Q-switched lasers
Spectra-Physics, has introduced the Talon 355-15, a new addition to its Talon family of Q-switched diode-pumped solid-state (DPSS) lasers. The laser delivers >15W UV power, >300µJ pulse energy, and a wide-repetition-rate range of 0 to 500kHz. Talon 355-15 is suitable for powering continuous manufacturing of PCBs, semiconductors, LEDs, ceramics, flat panel displays, solar cells, glass, and other devices and materials.
VersaLase laser module
Laser 2000 is now supplying the new VersaLase from Vortran Laser Technologies, a fully integrated, plug-and-play, and self-contained multiple wavelength output laser module. The sealed optical cavity and the innovative electronics give
Available in >15, >12 and >6W UV and >20W green versions, Talon is an out-of-the- box laser, combining power supply and laser head into a single, common rugged package for system integration and intermixing between models to achieve specific end customer requirements.
www.spectra-physics.com
Edmund Optics has introduced new laser crystals. Nd:YAG laser crystals feature high optical homogeneity, high laser damage thresholds, processing accuracy and good stability. They provide superior fluorescence lifetime and thermal conductivity for maximum throughput at 1,064nm. The crystals are for high-power CW, Q-switched or single mode operation. Nd:YVO4 crystals feature high damage thresholds, strong mechanical properties and superior optical properties. Nd:YVO4 has a large stimulated emission cross section, high absorption, and a broad absorption band centred at 807nm for compact DPSS lasers. The crystals can lase at 1,342nm, 1,064nm, and 914nm with associated harmonics in the green and blue wavelengths. Ti:sapphire crystals provide large gain and emission bandwidths with high laser damage thresholds and saturation power. With high thermal conductivity, they are suitable for implementation into femtosecond pulsed or wavelength tunable CW lasers.
www.edmundoptics.com
Lenses and optics
Surface coating technology
the VersaLase power and beam pointing stability as well as low noise over time and temperature. The graphical user interface software allows the user to control and monitor the module remotely via USB or RS-232.
www.laser2000.de
Picodeon has developed its ultra-short pulsed laser deposition (USPLD) surface coating technology to create porous or dense aluminium oxide (Al2O3) coatings on heat- sensitive substrates.
Electronics Cool and Control diode driver modules
Alphanov, the technology centre of the Bordeaux Route des Lasers cluster, has introduced a family of diode driver modules. With the new Cool and Control (CC) diode driver modules, single-mode and multimode diodes can now be driven reliably and securely with compact devices.
The single-mode Cool and Control module (CC-S) drives and cools external standard butterfly laser diodes. From single-shot to CW with pulse lengths from hundreds of picoseconds to any required pulse
www.electrooptics.com | @electrooptics
burst configuration, its pulses are generated internally or on-demand from a LVTTL signal with ~500ps rise time range and up to 0.5 Amps CW current.
The multimode Cool and Control module (CC-M) allows the user to control external single or multiple element laser diodes up to 20V, 15 Amps.
www.alphanov.com
The process enables micro-structural control of Al2O3 coatings, and coating characteristics, by the maintenance of coating process parameters on Coldab Series4 USPLD batch process coating equipment. The Series4 equipment has built-in online plasma monitoring and laser power measurement that enable management of coating process parameters, as well as a PC controlled automation that records the actions of the coating process. The metrics provided by these systems mean that the coating process, and especially the thin film quality, can be controlled to achieve coating characteristics within targeted parameters. Test production runs showed that the system could improve the porosity of a 3µm Al2O3 coating from 10 to 45 per cent by tuning the scanning speed and laser power repetition rate.
www.picodeon.com
APRIL 2014 l ELECTRO OPTICS 35
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