Ultrafast gain  and index dynamics  of quantum dash  structures emitting  at 1.55 mu m

Mike van der Poel; Jesper Mørk; A. Somers; A. Forchel; J. P. Reithmaier; G. Eisenstein

doi:10.1063/1.2337881

Ultrafast gain and index dynamics of quantum dash structures emitting at 1.55 mu m

Mike van der Poel, Jesper Mørk, A. Somers, A. Forchel, J. P. Reithmaier, G. Eisenstein

Center for Nanoteknologi

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

437 Downloads (Pure)

Abstract

The authors systematically characterize the ultrafast gain and index recovery of a quantum dash semiconductor optical amplifier after it has amplified a strong femtosecond pulse. The results show a recovery dominated by a fast time constant of 1.4 ps with an ultimate recovery taking place on a 150 ps time scale. The results are distinctly different from the recovery of quantum dot amplifiers and reflect the special density of states of the quantum-wire-like dashes.

Original language	English
Journal	Applied Physics Letters
Volume	89
Issue number	8
Pages (from-to)	081102
ISSN	0003-6951
DOIs	https://doi.org/10.1063/1.2337881
Publication status	Published - 2006

Bibliographical note

Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

Keywords

DEVICES
LASERS
HETERODYNE PUMP-PROBE
DOT AMPLIFIERS

Access to Document

10.1063/1.2337881

MørkFinal published version, 272 KB

http://link.aip.org/link/APPLAB/v89/i8/p081102/s1

OpenUrl availability

Full text

Cite this

@article{139876bf195e4a71a799fe1515337ff3,

title = "Ultrafast gain and index dynamics of quantum dash structures emitting at 1.55 mu m",

abstract = "The authors systematically characterize the ultrafast gain and index recovery of a quantum dash semiconductor optical amplifier after it has amplified a strong femtosecond pulse. The results show a recovery dominated by a fast time constant of 1.4 ps with an ultimate recovery taking place on a 150 ps time scale. The results are distinctly different from the recovery of quantum dot amplifiers and reflect the special density of states of the quantum-wire-like dashes.",

keywords = "DEVICES, LASERS, HETERODYNE PUMP-PROBE, DOT AMPLIFIERS",

author = "Poel, {Mike van der} and Jesper M{\o}rk and A. Somers and A. Forchel and Reithmaier, {J. P.} and G. Eisenstein",

note = "Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.",

year = "2006",

doi = "10.1063/1.2337881",

language = "English",

volume = "89",

pages = "081102",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "8",

}

TY - JOUR

T1 - Ultrafast gain and index dynamics of quantum dash structures emitting at 1.55 mu m

AU - Poel, Mike van der

AU - Mørk, Jesper

AU - Somers, A.

AU - Forchel, A.

AU - Reithmaier, J. P.

AU - Eisenstein, G.

N1 - Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

PY - 2006

Y1 - 2006

N2 - The authors systematically characterize the ultrafast gain and index recovery of a quantum dash semiconductor optical amplifier after it has amplified a strong femtosecond pulse. The results show a recovery dominated by a fast time constant of 1.4 ps with an ultimate recovery taking place on a 150 ps time scale. The results are distinctly different from the recovery of quantum dot amplifiers and reflect the special density of states of the quantum-wire-like dashes.

AB - The authors systematically characterize the ultrafast gain and index recovery of a quantum dash semiconductor optical amplifier after it has amplified a strong femtosecond pulse. The results show a recovery dominated by a fast time constant of 1.4 ps with an ultimate recovery taking place on a 150 ps time scale. The results are distinctly different from the recovery of quantum dot amplifiers and reflect the special density of states of the quantum-wire-like dashes.

KW - DEVICES

KW - LASERS

KW - HETERODYNE PUMP-PROBE

KW - DOT AMPLIFIERS

U2 - 10.1063/1.2337881

DO - 10.1063/1.2337881

M3 - Journal article

SN - 0003-6951

VL - 89

SP - 081102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

ER -