It is not recommended to choose a sensor if it is very close to the damage threshold if there is an alternative, since laser damage is not an exact figure and depends on many things. Use the Sensor Finder to find the best match where you are preferably below 50% of the damage threshold.
Power Meters FAQ's
Choosing a Sensor
Yes, we have the ability to rapid prototype standard OEM sensors to help with custom applications where an off the shelf sensor does not fill the requirement.
Surface Absorbers are spectrally broadband and spectrally flat due to their absorbing surface. With Surface Absorbers, the photons are converted to heat in the front layer of the absorbing surface. The P and PF versions of these sensors have a surface that absorbs within the volume of the coating. This provides superior damage resistance for high energy Q-switched type lasers, but has a lower damage threshold for CW lasers. This type of sensor is referred to as a Volume Absorber; the laser energy is absorbed in the volume of the material below the front surface. For a detailed discussion of thermal surface and volume absorbing sensors and absorbers for high power lasers, click here.