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How Much of the Power Sensor Aperture Can My Laser Fill Up?

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How Much of the Power Sensor Aperture Can My Laser Fill Up?

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The entire aperture senses power, so you can use the whole head. That said, a beam in the inner 50% of the surface area (about 70% of the diameter) is specified by Ophir to be uniform within +/-2%. The sensitivity around the edges might be a little less, but generally the sensitivity doesn’t vary by more than +/-2% over the entire aperture.

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