Laser Sensors/Volume Absorbers

MKS Ophir, Light & MeasurementRequest Info
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LOGAN, Utah, Jan. 19, 2010 — Ophir Photonics has introduced a line of high-damage-threshold power volume absorbers for short-pulsed lasers (<1 µs). The PF sensors absorb a laser's energy in the volume of the material being used. They make use of a spray deposited on the surface, not the typical glass or ceramic substrate. This means that they provide higher power handling and faster response times. They can handle up to twenty times the power density, up to 3 kW/cm2, and the response time is as fast as 1 s.

The series includes four models: the 50(150)A-PF-35 for up to 50-W continuous and 150-W intermittent with a large 35-mm aperture; the 15(50)A-PF-DIF-18 for 15-W continuous and 50-W intermittent; the 50A-PF-DIF-18 for 50-W continuous; and the F100A-PF-DIF-18 for 100-W continuous. The last three models include a diffuser to enhance damage resistance.

The sensors allow power densities up to 3 kW/cm2 instead of the usual 50 W/cm2. The sprayed on coating is more durable, less expensive and can be produced in any size needed. Because the absorber is a layer and not a solid surface, response times are faster. It enables the sensors to withstand much higher peak powers without sustaining thermal damage.

The sensors are available now, and OEM pricing is available upon request.

Published: January 2011
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