Analysis of erbium-doped fiber amplifiers pumped in the4I15/2-4I13/2 band |
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Authors: | Desurvire E. |
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Affiliation: | AT&T Bell Lab., Holmdel, NJ; |
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Abstract: | A theoretical model for the amplifiers predicts gain coefficients of around 2 dB per milliwatt of launched pump power, in close agreement with previously reported measurements. The model is also used to determine the optimal pump wavelength λopt that maximizes the amplifier gain. It is shown that the latter is insensitive to pump detuning near λopt=1.48 μm, within a 20 nm range, which indicates that broadband, multimode laser diode pump sources and pumps with narrow linewidths should yield identical gain performance |
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