technology Beam analysis Analyse this rob coppinger rounds up the latest beam analysis products for use with lasers
coherent has expanded its range of laser energy measurement products with its new ‘meterless’ EnergyMax sensors. Incorporating state-of-the-art miniaturisation technology found in the company’s successful PowerMax sensors, EnergyMax meterless sensors eliminate the need for an external meter, allowing the user to monitor laser energy using a PC. The sensors provide plug-and-play system integration for pulsed lasers with repetition rates of up to 10kHz, while also offering cost-savings over traditional meter plus sensor systems.
www.coherent.com
phaseView has introduced a new software suite that allows any imaging device from UV to IR to serve as a wavefront analyser. Thanks to digital wavefront technology adding phase measurement to any user’s camera means this method of measurement can be performed at high spatial wavefront resolutions. Unlike Shack-Hartmann based wavefront sensors, digital
ophir photonics group’s Beamgage carries out data acquisition and analysis of a laser beam’s parameters. It provides data on beam size, shape, uniformity, divergence, mode content, and expected power distribution. Based on the patented baseline correction algorithm Ultracal, the software has a data baseline accurate to 1/8th of the digital count. Beamgage uses its Beammaker beam simulator, automatic camera control, and set of analysis algorithms. Beamgage Professional adds partitioning of the camera output for separate analysis of multiple laser beams from sources such
wavefront technology will allow measurements directly related to the imaging device’s pixel resolution. Neither is there a trade-off between resolution and dynamic range. With appropriate acquisition parameters, any beam divergence and aberration range can be measured either off-line or in real time. The software includes comprehensive
as fibre. Beamgage also has a .NET interface for full remote manual and automatic control of the camera and sharing of the camera’s output. Beamgage includes support for Windows
analysis tools such as intensity distribution, M2
Vista, Windows 7, Gigabit Ethernet cameras and Ophir’s own 11-megapixel, 35mm format USB L11058 Large Format Beam Profiling Camera.
www.ophiropt.com
measurement,
beam propagation analysis and MTF and PSF measurements. The software suite comes with a graphics user interface and software development kit, adapted to various research and development labs and original equipment manufacturers’ applications. It includes 3D surface metrology, laser beam profiling, optics testing, adaptive optics and phase microscopy.
www.phaseview.com
Pfungstadt-based primes has a mechanical scanning product, Focusmonitor, which is designed to analyse continuous wave IR to NIR lasers in the multi-kilo Watt range. It is also able to measure the focus while the laser is at full power. The company also offers solutions for CO2
and solid- state lasers, based on the ISO 34 electro optics l OctOber 2011
Standard 11146. Located near Darmstadt Primes also offers its camera based Microspotmonitor that measures spots generated by pulsed lasers from the UV to the NIR wavelengths. Both Focusmonitor and Microspotmonitor can produce focus characterisation within a few minutes. The results are data on focus diameter, focus position in space and M2
. With this
characterisation of the processing tool material processing with the laser can be made a more consistent process.
www.primes.de
www.electrooptics.com
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