Gain Coefficient (g*(λ)) is equivalent to the emission spectrum per unit length. The gain is offered by a laser ion transition, and is quantified by the product of the emission cross section and doping density, N0. In the context of an erbium doped fiber amplifier, this is a Giles parameter used to model the system.
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Related Terms: Cross section, Doping Density, Effective Area, Emission Cross Section, Erbium Doped Fiber (EDF), Erbium, Excited State, Excited State Absorption (ESA), Gain Coefficient, Giles Parameter