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alistu
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Hi Maha,

I personally don’t know of any component who would do this, but you might be able to make one using a fork, an optical hard limiter and an optical multiplier. Signal is connected to the fork first. The upper branch of the fork enters a hard limiter with the threshold you wish to define for your filter, upper power level of 1 W and lower power level of a very small number. Then the output signal enters the multiplier, together with the main signal from the lower branch of the fork. And the output is the filtered signal based on the power. If there was no component to do this, you could give this a try.

Regards

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