| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 462404 | Optical Fiber Technology | 2012 | 4 Pages |
Abstract
Analytical solutions to rate and propagation equations describing gain in terms of photon intensities, transition rates, and absorption and emission cross-sections is determined in radially symmetric and longitudinally uniform monomode erbium doped silica fiber in presence of pump excited-state absorption effect for a pumping wavelength of 514.5 nm under the steady-state conditions with the help of a homogenous four-band transition scheme.
► A newly derived formalism for the gain in EDFA with ESA effect is presented here. ► The analytical expressions match well with previous results once ESA is ignored. ► Our results are comprehensive and can be applied to other amplifiers and lasers.
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Authors
G.R. Khan,