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Propagation-induced transition from slow to fast light in highly doped erbium fibers

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Melle_propagantion-2008-PhysRevA.78.053812.pdf (600.39 KB)
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https://doi.org/10.1103/PhysRevA.78.053812
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2008-11-10
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American Physical Society
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Abstract
We analyze the propagation regime of an amplitude-modulated 1536 nm signal when traveling along a highly doped erbium fiber pumped at 977 nm as a function of the fiber length. A propagation-induced transition from superluminal to subluminal propagation takes place along the fiber length which allows a change in regime solely based upon increasing the signal modulation frequency. This peculiar behavior is due to the interplay between pump absorption and pump-power broadening of the spectral hole induced by coherent population oscillations. The effect of ion density on this frequency-dependent regime change has been investigated.
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©2008 The American Physical Society
UCM subjects
Óptica (Física) , Fibras y comunicación óptica , Óptica no líneal
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2209.19 Óptica Física , 2209.5 Fibras ópticas , 2209.13 Óptica no lineal
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https://hdl.handle.net/20.500.14352/52223
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