How does Gain-switching produce intensity spikes?
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As we talk about a Laser and its active Medium, a figure like the one down below is often shown. I understood the basics of it but cannot think of a simple explanation why there is a gauss like gain curve above all passible frequency spikes.
I know one can say "the medium increases only those frequencies" but what principle is connected to this?
I know one can say "the medium increases only those frequencies" but what principle is connected to this?
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Gain-switching. Gain-switching is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, of the order of picoseconds (10−12 s). ... So the carrier density eventually falls back to below lasing threshold which results in the termination of the optical output.
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