Amplified spontaneous emission in cladding-pumped L-band erbium-doped fiber amplifiers

Amplified spontaneous emission in cladding-pumped L-band erbium-doped fiber amplifiers

Propagation of amplified spontaneous emission (ASE) in cladding-pumped long-wavelength-band erbium-doped fiber amplifiers (EDFAs) is analyzed numerically. Forward and backward ASE power dependence on cladding area is analyzed for both pumping directions. ASE power propagating counterdirectionally to...

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Veröffentlicht in:IEEE photonics technology letters 2001-01, Vol.13 (1), p.22-24
Hauptverfasser: Soderlund, M., Tammela, S., Poyhonen, P., Leppihalme, M., Peyghambarian, N.
Format: Artikel
Sprache:eng
Schlagworte:
Amplification
Amplifiers
Cladding
Construction
Conversion
Erbium-doped fiber amplifier
Fibers
L-band
Laser excitation
Laser noise
Optical amplifiers
Power amplifiers
Power generation
Power lasers
Pump lasers
Pumps
Spontaneous emission
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Beschreibung
Zusammenfassung:Propagation of amplified spontaneous emission (ASE) in cladding-pumped long-wavelength-band erbium-doped fiber amplifiers (EDFAs) is analyzed numerically. Forward and backward ASE power dependence on cladding area is analyzed for both pumping directions. ASE power propagating counterdirectionally to the pump is found to experience strong dependence on the cladding area. Increasing the cladding area results in more uniform pump distribution along the EDF, preventing short-wavelength gain and ASE buildup. Quantum conversion efficiency in cladding-pumped L-band EDFAs is discussed.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.903208