I have 2 grating and I want to stretch or compress the pulse; how I can calculate the final duration of pulse after stretching or compressing?

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Mauro Prasciolu

You need to know more about your pulse (how it is chirped). Then, the compression or extension factor depends on the gratings pitch, incidence angles and distance between gratings.

Kimia Kim

Dear Mauro:

Thanks for answer.

Do you know a formula to calculate pulse duration after stretching?