Intensity based erbium distribution for erbium doped fiber amplifiers |
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| Authors: | Alireza Hassani Ezatollah Arzi Faramarz E Seraji |
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| Institution: | (1) Department of Physics, University of Tehran, Tehran, Iran;(2) Present address: Engineering Physics Department, Ecole Polytechnique de Montréal, Montreal, Canada;(3) Optical Communication Group, ITRC, Tehran, Iran |
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| Abstract: | A method to calculate an optimum Erbium distribution to enhance the gain efficiency in EDFA is proposed. This method calculates
Erbium distribution based on optical pump envelop, pump power and optical properties of Erbium ion. The intensity-based Erbium
distribution is obtained for single-mode fiber and dispersion-shifted fiber types EDFA for pump power from 10 to 40 mW. All
of the profiles have a Gaussian-like shape. For single-mode fiber type EDFA, high gain enhancement is obtained in a relatively
short optimal length of fiber. Optimal length of EDFA, using intensity-based Erbium distribution, is increased by a factor
of 1.5–3 with respect to the one using stepwise. This optimal length increasing factor is considerably smaller than that of
the EDFA, using the one-fourth confinement Erbium profile. |
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| Keywords: | Erbium doped fiber amplifiers Optical fiber amplifiers Optimization Optimized Erbium Distribution Gain enhancement |
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