Gain and refractive index dynamics in p-doped InAs quantum dash semiconductor optical amplifiers

Katarzyna Komolibus; Tomasz Piwonski; Siddharth Joshi; Nicolas Chimot; John Houlihan; Francois Lelarge; Guillaume Huyet

doi:10.1063/1.4955460

Gain and refractive index dynamics in p-doped InAs quantum dash semiconductor optical amplifiers

Katarzyna Komolibus, Tomasz Piwonski, Siddharth Joshi, Nicolas Chimot, John Houlihan, Francois Lelarge, Guillaume Huyet

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

2 Citations (Scopus)

Abstract

The ultrafast carrier dynamics in a p-doped dash-in-a-well structure at 1.5 μm is experimentally investigated. An analysis of the timescales related to carrier relaxation and escape processes as well as the "dynamical" linewidth enhancement factor is presented and compared with results obtained from similar un-doped materials. Intentional p-doping of the active region results in an enhancement of the intermediate timescale of the gain dynamics associated with phonon-assisted electron capture and a reduction of the α-factor due to increased differential gain.

Original language	English
Article number	031102
Journal	Applied Physics Letters
Volume	109
Issue number	3
DOIs	https://doi.org/10.1063/1.4955460
Publication status	Published - 18 Jul 2016

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AU - Komolibus, Katarzyna

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AU - Joshi, Siddharth

AU - Chimot, Nicolas

AU - Houlihan, John

AU - Lelarge, Francois

AU - Huyet, Guillaume

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AB - The ultrafast carrier dynamics in a p-doped dash-in-a-well structure at 1.5 μm is experimentally investigated. An analysis of the timescales related to carrier relaxation and escape processes as well as the "dynamical" linewidth enhancement factor is presented and compared with results obtained from similar un-doped materials. Intentional p-doping of the active region results in an enhancement of the intermediate timescale of the gain dynamics associated with phonon-assisted electron capture and a reduction of the α-factor due to increased differential gain.

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Gain and refractive index dynamics in p-doped InAs quantum dash semiconductor optical amplifiers

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