Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1997-08-28
2000-06-27
Hellner, Mark
Optical: systems and elements
Optical amplifier
Optical fiber
359334, H01S 300
Patent
active
060813660
ABSTRACT:
The disclosed optical fiber communication system comprises a remotely pumped erbium-doped fiber amplifier (EDFA). The pump radiation is de-tuned with respect to wavelength, the wavelength being selected longer than both the optimal wavelengths for pumping the EDFA and for producing Raman gain in the transmission fiber, respectively. Such de-tuning results in improved over-all system performance through reduced multi-path interference. Exemplarily, the pump radiation has wavelength in the range 1490-1510 nm.
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Kidorf Howard David
Walker Kenneth Lee
Hellner Mark
Lucent Technologies - Inc.
Pacher Eugen E.
Tyco Submarine Systems Ltd.
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