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We’d all like to imagine that our things will stay in mint condition forever. But we know that’s not the case. Just like laser degrade (and therefore must be measured), the measurement equipment itself will slowly drift away from its precise calibration.

This is why we recommend yearly calibration. If you aren’t sure when your laser power or energy is due for recalibration, you can check by connecting it to a meter. If it needs to be recalibrated, a notification will pop up on the first screen.

Here’s how the recalibration process works.

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A few months ago, I mentioned a new method for measuring kilowatt lasers without water (or even fan) cooling.

The idea was like this: Even a small 50 W sensor can handle high powers for a short amount of time, like a few seconds. Several of our sensors’ specifications were adjusted to reflect this.

For example, the L40(150)A is meant to measure 40 W continuously, but it can actually measure 4000 W for a second.

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With high power lasers, there’s always a safety concern for equipment and people nearby.

(Of course, I’m not qualified to give a detailed analysis of what needs to be taken into account for laser safety. For that, you should consult a laser safety officer.)

I want to specifically ask whether there’s an issue of laser light reflecting off power measuring equipment.