The discussion centers on the phenomenon of gain saturation in Erbium-Doped Fiber Amplifiers (EDFA). It is established that as input power increases, the gain of the EDFA saturates due to the depletion of the population inversion necessary for amplification. The participants emphasize the importance of understanding the physical principles behind this saturation, particularly how it affects the gain in saturated versus unsaturated regions.
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kingdomoff said:Hi,
Why for arbitrary high input power the gain saturates in EDFA (erbium-doped fiber amplifer)?
berkeman said:For arbitrarily high input power? Seems like you've answered your own question.
Can you provide a pointer to information about the EDFA you are using, and be more specific about the power levels you want to run at?