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Journal of Optics

Slow and fast light based on coherent population oscillations in erbium-doped fibres

Francisco Arrieta-Yáñez, Óscar G. Calderón, Sonia Melle

Published Sep 24, 2010• 29 citations
Publisher

Abstract

In this paper we review the main results on slow and fast light induced by coherent population oscillations in optical fibres doped with erbium ions. We explain the physics behind this technique and we describe the experimental realization. Finally, we summarize some recent advances in this field and future goals.
DOI
10.1088/2040-8978/12/10/104002

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We report on the control of the slow and fast light propagation velocity of two light beams (at 1550 nm and 980 nm) through an erbium-doped fibre amplifier by means of coherent population oscillations. We modulate the amplitude of both beams with the same frequency so that the relative phase between both modulations allows us to control their group velocities. The same group velocity, in absolute value, is achieved when beams are modulated in phase or phase opposition. The experimental results are explained by a rate equation model.