Phase tunability of group velocity by modulated-pump-forced coherent population oscillations

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https://doi.org/10.1103/PhysRevA.80.011804
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2009

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American Physical Society
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https://hdl.handle.net/20.500.14352/42813
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Abstract
We propose a technique to obtain slow and fast light propagations based on coherent population oscillations forced by a modulated pump. This mechanism produces an enhancement of 1 order of magnitude of the delay or advancement of light signals. The relative phase between the pumps to the signal fields is used as a knob for changing light propagation from ultraslow group velocities to negative group velocities. The experimental realization of the phenomenon was carried out in an erbium-doped fiber amplifier at room temperature.
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Received 12 July 2008 ©2009 The American Physical Society
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Electromagnetismo , Óptica (Física) , Teoría de los quanta
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2202 Electromagnetismo , 2209.19 Óptica Física , 2210.23 Teoría Cuántica
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