Nonlinear carrier dynamics in a quantum dash optical amplifier

Per Lunnemann Hansen; Sara Ek; Kresten Yvind; Rozenn Piron; Jesper Mørk

doi:10.1088/1367-2630/14/1/013042

Nonlinear carrier dynamics in a quantum dash optical amplifier

Per Lunnemann Hansen
, Sara Ek
, Kresten Yvind
, Rozenn Piron
, Jesper Mørk

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Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

Results of experimental pump-probe spectroscopy of a quantum dash optical amplifier biased at transparency are presented. Using strong pump pulses we observe a competition between free carrier absorption and two-photon induced stimulated emission that can have drastic effects on the transmission dynamics. Thus, both enhancement as well as suppression of the transmission can be observed even when the amplifier is biased at transparency. A simple theoretical model taking into account two-photon absorption and free carrier absorption is presented that shows good agreement with the measurements.

Original language	English
Journal	New Journal of Physics
Volume	14
Issue number	1
Pages (from-to)	013042
ISSN	1367-2630
DOIs	https://doi.org/10.1088/1367-2630/14/1/013042
Publication status	Published - 2012

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10.1088/1367-2630/14/1/013042

7FBF1d01Submitted manuscript, 521 KB
Plugin-1367-2630 14 1 013042Final published version, 869 KB

http://arxiv.org/abs/1111.2757

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title = "Nonlinear carrier dynamics in a quantum dash optical amplifier",

abstract = "Results of experimental pump-probe spectroscopy of a quantum dash optical amplifier biased at transparency are presented. Using strong pump pulses we observe a competition between free carrier absorption and two-photon induced stimulated emission that can have drastic effects on the transmission dynamics. Thus, both enhancement as well as suppression of the transmission can be observed even when the amplifier is biased at transparency. A simple theoretical model taking into account two-photon absorption and free carrier absorption is presented that shows good agreement with the measurements.",

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AU - Yvind, Kresten

AU - Piron, Rozenn

AU - Mørk, Jesper

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Y1 - 2012

N2 - Results of experimental pump-probe spectroscopy of a quantum dash optical amplifier biased at transparency are presented. Using strong pump pulses we observe a competition between free carrier absorption and two-photon induced stimulated emission that can have drastic effects on the transmission dynamics. Thus, both enhancement as well as suppression of the transmission can be observed even when the amplifier is biased at transparency. A simple theoretical model taking into account two-photon absorption and free carrier absorption is presented that shows good agreement with the measurements.

AB - Results of experimental pump-probe spectroscopy of a quantum dash optical amplifier biased at transparency are presented. Using strong pump pulses we observe a competition between free carrier absorption and two-photon induced stimulated emission that can have drastic effects on the transmission dynamics. Thus, both enhancement as well as suppression of the transmission can be observed even when the amplifier is biased at transparency. A simple theoretical model taking into account two-photon absorption and free carrier absorption is presented that shows good agreement with the measurements.

U2 - 10.1088/1367-2630/14/1/013042

DO - 10.1088/1367-2630/14/1/013042

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JO - New Journal of Physics

JF - New Journal of Physics

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Nonlinear carrier dynamics in a quantum dash optical amplifier

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