Evidence of cascaded emission in a dual-wavelength quantum cascade laser

Kale J. Franz; Daniel Wasserman; Anthony J. Hoffman; David C. Jangraw; Kuen Ting Shiu; Stephen R. Forrest; Claire F. Gmachl

doi:10.1063/1.2709970

Evidence of cascaded emission in a dual-wavelength quantum cascade laser

Kale J. Franz, Daniel Wasserman, Anthony J. Hoffman, David C. Jangraw, Kuen Ting Shiu, Stephen R. Forrest, Claire F. Gmachl

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12 Scopus citations

Abstract

This letter reports on a quantum cascade laser that exhibits simultaneous dual-wavelength emission from two consecutive optical transitions in each active region. These "cascaded" transitions-a second-excited state to first-excited state and a first-excited state to ground state-yield light at ∼9.5 and ∼8.2 μm, respectively, in good agreement with simulations. The two lasing wavelengths have similar thresholds at the leading edge of a current pulse.

Original language	English (US)
Article number	091104
Journal	Applied Physics Letters
Volume	90
Issue number	9
DOIs	https://doi.org/10.1063/1.2709970
State	Published - 2007

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2709970

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@article{a4a96886f78f43e0a99ad2a19b7f6efd,

title = "Evidence of cascaded emission in a dual-wavelength quantum cascade laser",

abstract = "This letter reports on a quantum cascade laser that exhibits simultaneous dual-wavelength emission from two consecutive optical transitions in each active region. These {"}cascaded{"} transitions-a second-excited state to first-excited state and a first-excited state to ground state-yield light at ∼9.5 and ∼8.2 μm, respectively, in good agreement with simulations. The two lasing wavelengths have similar thresholds at the leading edge of a current pulse.",

author = "Franz, \{Kale J.\} and Daniel Wasserman and Hoffman, \{Anthony J.\} and Jangraw, \{David C.\} and Shiu, \{Kuen Ting\} and Forrest, \{Stephen R.\} and Gmachl, \{Claire F.\}",

note = "Funding Information: This work was supported in part by DARPA-LPAS and MIRTHE (NSF-ERC). One of the authors (K.J.F.) gratefully acknowledges the support of the National Science Foundation Graduate Research Fellowship Program. ",

year = "2007",

doi = "10.1063/1.2709970",

language = "English (US)",

volume = "90",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "9",

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TY - JOUR

T1 - Evidence of cascaded emission in a dual-wavelength quantum cascade laser

AU - Franz, Kale J.

AU - Wasserman, Daniel

AU - Hoffman, Anthony J.

AU - Jangraw, David C.

AU - Shiu, Kuen Ting

AU - Forrest, Stephen R.

AU - Gmachl, Claire F.

N1 - Funding Information: This work was supported in part by DARPA-LPAS and MIRTHE (NSF-ERC). One of the authors (K.J.F.) gratefully acknowledges the support of the National Science Foundation Graduate Research Fellowship Program.

PY - 2007

Y1 - 2007

N2 - This letter reports on a quantum cascade laser that exhibits simultaneous dual-wavelength emission from two consecutive optical transitions in each active region. These "cascaded" transitions-a second-excited state to first-excited state and a first-excited state to ground state-yield light at ∼9.5 and ∼8.2 μm, respectively, in good agreement with simulations. The two lasing wavelengths have similar thresholds at the leading edge of a current pulse.

AB - This letter reports on a quantum cascade laser that exhibits simultaneous dual-wavelength emission from two consecutive optical transitions in each active region. These "cascaded" transitions-a second-excited state to first-excited state and a first-excited state to ground state-yield light at ∼9.5 and ∼8.2 μm, respectively, in good agreement with simulations. The two lasing wavelengths have similar thresholds at the leading edge of a current pulse.

UR - https://www.scopus.com/pages/publications/33847655733

UR - https://www.scopus.com/inward/citedby.url?scp=33847655733&partnerID=8YFLogxK

U2 - 10.1063/1.2709970

DO - 10.1063/1.2709970

M3 - Article

AN - SCOPUS:33847655733

SN - 0003-6951

VL - 90

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

M1 - 091104

ER -

Evidence of cascaded emission in a dual-wavelength quantum cascade laser

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