PROdUcT UPdATE


Ideal for gas laser replacement
Cobolt has introduced the Cobolt Dual
Combiner, allowing the alignment-free
combination of any two lines in Cobolt’s
broad range of visible lasers in one compact
package.
Built on a compact and stable platform
with optimised thermo-mechanical
properties, the Cobolt Dual Combiner
provides a permanently aligned beam
overlap. The very small dynamical
tolerances of the beam overlap (<20µrad°C)
combined with a robust and compact
platform make any adjustment at
installation or over time unnecessary. The
device can be used for drop-in replacement
of gas lasers or as a way to expand the
wavelength offering of existing light-
engines, e.g. for confocal micriscopy,
without the need for any re-design. The
footprint of the device is only 190 x 65mm,
and the two laser lines can be addressed wave DPSS lasers operating at fixed with low noise (<0.3 per cent rms), narrow
individually through RS232 wavelengths of 457, 473, 491, 515, 532, spectral line width (typically <30MHz) and
communication. Examples of attractive 561 or 594nm and with output power exceptionally high beam quality (M
2
<1.1).
line-combinations that can be offered with levels of up to 300mW. Built into a The Cobolt visible lasers are based on
the Cobolt Dual Combiner are: hermetically-sealed compact package using proprietary PPKTP frequency conversion
491+515nm, 491+457nm, 491+561nm or the proprietary HTCure technology for technology, for optimum flexibility and
561+594nm. extreme robustness, the Cobolt visible efficiency.
The Cobolt visible lasers are continuous- lasers are single longitudinal mode lasers www.cobolt.se
➤monolithic stabilisation technology for stable output at 50kHz, and is suitable for operation Fibre laser with high stability
and passively cooled operation over a wide at repetition rates of up to 150kHz. Its
temperature range. combination of high repetition rate and short
www.qpclasers.com pulse length (<20ns at 5W) enables high
throughput processing with minimal heat
Lasers for cost-sensitive affected zone (HAZ).
micromachining The Avia 355-5 is a cost-effective, compact,
OEM product that offers many of the same
features found on more powerful Avia models.
Signature Avia features of ThermEQ, PulseEQ,
and PulseTrack enable precise control of the
delivered pulse energy allowing the OEM to NKT Photonics has introduced a new generation
define and optimise the laser process. The laser of its Koheras AdjustiK narrow linewidth
also has an automated harmonic crystal shifter benchtop fibre laser. The device is based on a
to maintain constant output power for >20,000 single frequency distributed-feedback fibre laser
hours thereby reducing the cost of ownership. with high-frequency stability and low phase and
In addition, the laser’s Posilock beam position intensity noise.
sensor and feedback loop results in high beam The Koheras laser provides inherently single
position stability over the life of the laser. frequency operation both under stable and
Coherent has launched the Avia 355-5, a The Avia 355-5 has been designed for easy uneven environmental conditions. The new
frequency tripled, diode-pumped, solid-state integration with a laser head measuring 491 x generation of AdjustiK systems offers several
laser. The laser offers economical performance 216 x 141mm. The laser also delivers control and monitor options for laser operation
for cost-sensitive micromachining tasks such as enhanced reliability and ease of maintenance with either direct access from the front panel or
scribing sapphire substrates used in the through the use of a highly efficient single via a PC using the supplied GraphiK program.
fabrication of GaN LEDs. It is a Q-switched pump diode module that is field replaceable. Higher power systems are available using the
Nd:YVO laser that delivers 5W of 355nm www.coherent.com Koheras BoostiK platform with up to 2W of
4
22 LASER SYSTEMS EUROPE • issue 5 www.lasersystemseurope.com
LSEwin09 pp20-26 Products.indd 22 2/12/09 16:07:01
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