Feasibility of hybrid Raman/EDFA amplification in bidirectional optical transmission

Feasibility of hybrid Raman/EDFA amplification in bidirectional optical transmission

The feasibility of hybrid optical amplification in an interleaved bidirectional architecture is studied. An optical repeater node is constructed using an L-band erbium-doped fiber amplifier and bidirectional Raman pumping to achieve a combined gain of 34 dB. Signal impairments associated with this a...

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Veröffentlicht in:IEEE photonics technology letters 2002-02, Vol.14 (2), p.221-223
Hauptverfasser: Radic, S., Chandrasekhar, S., Bernasconi, P., Centanni, J., Abraham, C., Copner, N., Tan, K.
Format: Artikel
Sprache:eng
Schlagworte:
Amplification
Amplifiers
Architecture
Bidirectional
Erbium-doped fiber amplifier
Feasibility
Gain
Noise levels
Optical crosstalk
Optical fiber amplifiers
Optical fibers
Optical pumping
Particle scattering
Propagation losses
Raman scattering
Rayleigh scattering
Stimulated emission
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Beschreibung
Zusammenfassung:The feasibility of hybrid optical amplification in an interleaved bidirectional architecture is studied. An optical repeater node is constructed using an L-band erbium-doped fiber amplifier and bidirectional Raman pumping to achieve a combined gain of 34 dB. Signal impairments associated with this architecture are identified and measured. Dense wavelength-division-multiplexing transmission of 40+40 25-GHz-spaced channels is demonstrated using the hybrid bidirectional amplifier over nonzero-dispersion-shifted fiber spans.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.980528