Phase dynamics of [formula omitted] quantum dot semiconductor optical amplifiers

I. O‘driscoll; T. Piwonski; J. Houlihan; G. Huyet; R. J. Manning; B. Corbett

doi:10.1063/1.2823589

Phase dynamics of [formula omitted] quantum dot semiconductor optical amplifiers

I. O‘driscoll
, T. Piwonski
, J. Houlihan
, G. Huyet
, R. J. Manning
, B. Corbett

University College Cork

Research output: Contribution to journal › Article › peer-review

Abstract

The gain and phase dynamics of [formula omitted] quantum dot amplifiers are studied using single and two-color heterodyne pump probe spectroscopy. The relaxation of the wetting layer carrier density is shown to have a strong effect on the phase dynamics of both ground and excited state transients, while having a much weaker effect on the gain dynamics. In addition, the dynamical alpha factor may also display a constant value after an initial transient. Such behavior is strongly encouraging for reduced pattern effect operation in high speed optical networks.

Original language	English
Pages (from-to)	428
Number of pages	1
Journal	Applied Physics Letters
Volume	91
Issue number	26
DOIs	https://doi.org/10.1063/1.2823589
Publication status	Published - 24 Dec 2007

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https://hdl.handle.net/10468/4374Licence: CC BY-NC-ND

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abstract = "The gain and phase dynamics of [formula omitted] quantum dot amplifiers are studied using single and two-color heterodyne pump probe spectroscopy. The relaxation of the wetting layer carrier density is shown to have a strong effect on the phase dynamics of both ground and excited state transients, while having a much weaker effect on the gain dynamics. In addition, the dynamical alpha factor may also display a constant value after an initial transient. Such behavior is strongly encouraging for reduced pattern effect operation in high speed optical networks.",

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AU - Manning, R. J.

AU - Corbett, B.

PY - 2007/12/24

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N2 - The gain and phase dynamics of [formula omitted] quantum dot amplifiers are studied using single and two-color heterodyne pump probe spectroscopy. The relaxation of the wetting layer carrier density is shown to have a strong effect on the phase dynamics of both ground and excited state transients, while having a much weaker effect on the gain dynamics. In addition, the dynamical alpha factor may also display a constant value after an initial transient. Such behavior is strongly encouraging for reduced pattern effect operation in high speed optical networks.

AB - The gain and phase dynamics of [formula omitted] quantum dot amplifiers are studied using single and two-color heterodyne pump probe spectroscopy. The relaxation of the wetting layer carrier density is shown to have a strong effect on the phase dynamics of both ground and excited state transients, while having a much weaker effect on the gain dynamics. In addition, the dynamical alpha factor may also display a constant value after an initial transient. Such behavior is strongly encouraging for reduced pattern effect operation in high speed optical networks.

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Phase dynamics of [formula omitted] quantum dot semiconductor optical amplifiers

Abstract

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