greenTEG Launches New Tools for Laser Beam Characterization

greenTEG launched new products at the Laser World of Photonics 2015 in Shanghai, China. greenTEG presented two new products, namely laser power heads for fast measurements and laser power and position sensors for 190 nm – 15 µm. These tools are ideal for diverse applications in laser beam characterization. greenTEG exhibited at the Swiss Pavilion (Booth 3660, Hall N3) together with other Swiss companies active in the photonics industry.

New product line: Fast Laser Power Heads

The Laser Power Head will enable fast and easy measurements of average laser power. Already today, greenTEG offers laser power sensors, but with the forward integration of the sensors into a power head, measurements and data read-out will be easier. greenTEG’s sensor technology has been specifically tailored to the new product line, allowing laser powers up to 50 Watts to be monitored with a non-accelerated response time of less than 250 milliseconds. The fast response time allows higher productivity and throughput as well as higher measurement frequencies for increased process control.

The power head operates with an input voltage of 12 to 24 Volt and delivers a calibrated and normalized voltage signal from 0 to 10 Volts. The product line comprises three models with nominal laser powers of 5W, 10W and 50W. Other laser power ranges are available upon request. Mounting threads and water channels are incorporated in each power head for cooling during continuous use with high powers or operation in temperature sensitive environments.

Latest prototypes: Thermal PSD for OEMs – Laser Position and Power Sensors for 190 nm-15 µW

For interested visitors greenTEG will demonstrate its latest prototype development, a thermal PSD. The Laser Positioning Sensors are designed for powers as low as 100 µW to 5 Watts. Since they completely rely on greenTEG’s thermoelectric technology, saturation problems and wavelength dependent sensitivity are no issues. With a size of 18×18 mm² they will perfectly fit into systems where space is limited and still allow to detect large beams.

greenTEG’s Sensor Technology

greenTEG’s laser power sensors are based on the thermoelectric effect. A novel production process allows greenTEG to produce sensor modules of a thickness of only 0.6mm. They measure laser power from deep-ultraviolet to the mid-infrared range with a rise time of less than a second and a resolution as low as 10 µW. Thermopile sensors for laser power measurements are especially suited when measuring in a broad dynamic range and when monitoring average power.