Category : Laser components, systems, equipment and applications > Laser components and systems

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The Peak Power Measurement Heads are designed to measure high repetition rate pulsed lasers, typically emitting about 10W in 50ns. The Heads for higher powers operate like integrating spheres and have a wide acceptance angle. They will even measure accurately the diverging light from the end of an optical fibre. The response times are close 1ns rise time.

The Low Power Heads have a lens to collect the light onto the photo diode. This allows the measurement of the very low powers returning after being scattered from a distant target (usually less than a microwatt). Although the lens reduces the acceptance angle to just a few degrees, this is easy to achieve in practice
All the Heads have built in Calibration facilities which we use to provide an accurate link between the power in a short high power pulse and the UK National Standards of CW power at about 1mW. The final absolute accuracy in the laser peak power measurement is typically better than ±2.5%. A sheet discussing the principles and accuracy of the calibration is available on request

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