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Observation of superluminal and slow light propagation in erbium-doped optical fiber

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Schweinsberg, A, Lepeshkin, N. N, Bigelow, M. S, Boyd, R. W, Jarabo, S·2006·Europhysics Letters (EPL)

Abstract

We observe both extremely slow and superluminal pulse propagation speeds at room temperature in an erbium-doped fiber (EDF). A signal at 1550 nm is sent through an erbium-doped fiber with varying powers of a 980 nm pump. The degree of signal delay or advancement is found to depend significantly on the pump intensity. We observe a maximum fractional advancement of 0.124 and a maximum fractional delay of 0.089. The effect is demonstrated both for a sinusoidally modulated signal and for Gaussian pulses. The ability to control the sign and magnitude of the pulse velocity could have important implications for applications in photonics.

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Metadata

Authors
Schweinsberg, A., Lepeshkin, N. N., Bigelow, M. S., Boyd, R. W., & Jarabo, S.
Venue
Europhysics Letters (EPL)
Published
2006-01
Volume
73
Issue
2
Pages
218-224
ISSN
  • 0295-5075 (ISSN-L)
  • 1286-4854
OpenAlex
W2070007050
Cited by
184
References
0
FWCI
10.86
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Observation of superluminal and slow light propagation in erbium-doped optical fiber. https://app.cochat.ai/papers/10.1209/epl/i2005-10371-0
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Schweinsberg, A., Lepeshkin, N. N., Bigelow, M. S., Boyd, R. W., & Jarabo, S. (2006). Observation of superluminal and slow light propagation in erbium-doped optical fiber. Europhysics Letters (EPL). https://doi.org/10.1209/epl/i2005-10371-0

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