A comparative analysis of doubled-pass erbium doped fiber amplifiers considering different signal-return schemes

In this work, an experimental comparative analysis of doubled-pass erbium doped fiber amplifiers with different signal-return approaches is presented. The amplifier performance was investigated in terms of gain and noise figure as the signal under amplification was reflected back towards the erbium...

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Bibliographic Details
Published in2007 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference pp. 29 - 33
Main Authors Gomes, R.A.P., Carvalho, R.N., Silva, R., Bordonalli, A.C.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2007
Subjects
Doped fiber amplifiers
Erbium
Erbium-doped fiber amplifier
Injection-locked oscillators
Mirrors
Noise figure
Optical communication
Optical fiber amplifiers
optical network
Performance gain
Semiconductor optical amplifiers
Signal analysis
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Summary:In this work, an experimental comparative analysis of doubled-pass erbium doped fiber amplifiers with different signal-return approaches is presented. The amplifier performance was investigated in terms of gain and noise figure as the signal under amplification was reflected back towards the erbium doped fiber by a mirror, filter, or circulator arrangement. Also, a semiconductor laser under single-facet optical injection locking was tried as an equivalent reflexive element. In particular, the regenerative characteristics provided by the injection locking process were able to provide considerably high gain and low noise figure levels for the amplifier, especially for considerably low input signal power.
ISBN:1424406609
9781424406609
DOI:10.1109/IMOC.2007.4404205