Static and dynamic measurements of the α -factor of five-quantum-dot-layer single-mode lasers emitting at 1.3 μm on GaAs

A. Martinez; A. Lemàtre; K. Merghem; L. Ferlazzo; C. Dupuis; A. Ramdane; J. G. Provost; B. Dagens; O. Le Gouezigou; O. Gauthier-Lafaye

doi:10.1063/1.1935754

Static and dynamic measurements of the α -factor of five-quantum-dot-layer single-mode lasers emitting at 1.3 μm on GaAs

A. Martinez
, A. Lemàtre
, K. Merghem
, L. Ferlazzo
, C. Dupuis
, A. Ramdane
, J. G. Provost
, B. Dagens
, O. Le Gouezigou
, O. Gauthier-Lafaye

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

Abstract

The "material" and "device" linewidth enhancement factor α of five-quantum-dot (QD)-layer single-mode lasers emitting at 1.3 μm are investigated using two methods. The Hakki-Paoli method associated with pulsed analysis of Fabry-Perot modes below threshold demonstrates a record value of 0.7 at 1295 nm. High-frequency current modulation experiments showed a value of 2.0 just above threshold at 1.3 μm with a steady increase with the current. Dynamic measurements on a three-QD layer device, with a reduced ground state optical gain, showed a similar increase of α with current but at a higher rate.

Original language	English
Article number	211115
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	86
Issue number	21
DOIs	https://doi.org/10.1063/1.1935754
Publication status	Published - 23 May 2005

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title = "Static and dynamic measurements of the α -factor of five-quantum-dot-layer single-mode lasers emitting at 1.3 μm on GaAs",

abstract = "The {"}material{"} and {"}device{"} linewidth enhancement factor α of five-quantum-dot (QD)-layer single-mode lasers emitting at 1.3 μm are investigated using two methods. The Hakki-Paoli method associated with pulsed analysis of Fabry-Perot modes below threshold demonstrates a record value of 0.7 at 1295 nm. High-frequency current modulation experiments showed a value of 2.0 just above threshold at 1.3 μm with a steady increase with the current. Dynamic measurements on a three-QD layer device, with a reduced ground state optical gain, showed a similar increase of α with current but at a higher rate.",

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doi = "10.1063/1.1935754",

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T1 - Static and dynamic measurements of the α -factor of five-quantum-dot-layer single-mode lasers emitting at 1.3 μm on GaAs

AU - Martinez, A.

AU - Lemàtre, A.

AU - Merghem, K.

AU - Ferlazzo, L.

AU - Dupuis, C.

AU - Ramdane, A.

AU - Provost, J. G.

AU - Dagens, B.

AU - Le Gouezigou, O.

AU - Gauthier-Lafaye, O.

PY - 2005/5/23

Y1 - 2005/5/23

N2 - The "material" and "device" linewidth enhancement factor α of five-quantum-dot (QD)-layer single-mode lasers emitting at 1.3 μm are investigated using two methods. The Hakki-Paoli method associated with pulsed analysis of Fabry-Perot modes below threshold demonstrates a record value of 0.7 at 1295 nm. High-frequency current modulation experiments showed a value of 2.0 just above threshold at 1.3 μm with a steady increase with the current. Dynamic measurements on a three-QD layer device, with a reduced ground state optical gain, showed a similar increase of α with current but at a higher rate.

AB - The "material" and "device" linewidth enhancement factor α of five-quantum-dot (QD)-layer single-mode lasers emitting at 1.3 μm are investigated using two methods. The Hakki-Paoli method associated with pulsed analysis of Fabry-Perot modes below threshold demonstrates a record value of 0.7 at 1295 nm. High-frequency current modulation experiments showed a value of 2.0 just above threshold at 1.3 μm with a steady increase with the current. Dynamic measurements on a three-QD layer device, with a reduced ground state optical gain, showed a similar increase of α with current but at a higher rate.

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DO - 10.1063/1.1935754

M3 - Article

AN - SCOPUS:20844443259

SN - 0003-6951

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SP - 1

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 21

M1 - 211115

ER -

Static and dynamic measurements of the α -factor of five-quantum-dot-layer single-mode lasers emitting at 1.3 μm on GaAs

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