GE IS200TREGH1A Channel output card

Because of their construction, pyroelectric sensors are restricted in the energy density they can withstand, particularly for short pulses on the order of nanoseconds. If the energy density of your laser exceeds the rating of the pyroelectric absorber, there are several options available: 1. You can enlarge your laser beam using a negative lens until the energy density is below damage threshold. You should test this using the test slide.

You can use a beam splitter, splitting off typically 8 - 10% of the light. 

If you use this method, note that there may be polarization effects. You can calibrate the beam splitter by running the laser at an energy below damage threshold and measuring the energy with and without the beam splitter and you can then use the normalize function above to display the actual laser power or energy. 3. Ophir has three sensors specifically designed for high energy density pulses. They are the PE50HD sensors with high damage threshold, the PE50-DIF model pyroelectric sensors with a diffuser and the RP thermal/photodiode sensors. Some of these sensors can measure energy densities up to several Joules/cm². Contact your Ophir dealer for details.

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The model meets your needs.

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