A widely voltage-tunable quantum cascade laser based on "two-step" coupling

Yu Yao, Kale J. Franz, Xiaojun Wang, Jen Yu Fan, Claire Gmachl

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A novel quantum cascade laser design with "two-step" coupling between the injector and the upper laser state is demonstrated to achieve a widely voltage-tunable laser spectrum. Electroluminescence from this design can be tuned over a range of more than 200 cm-1 with a tuning coefficient of ∼700 cm-1 /V per stage. Lasers based on this design provide a tuning range of ∼100 cm-1 (8.3-9 μm) above threshold with a tuning coefficient of ∼900 cm-1 /V per stage at a constant temperature of 295 K.

Original languageEnglish (US)
Article number021105
JournalApplied Physics Letters
Volume95
Issue number2
DOIs
StatePublished - 2009
Externally publishedYes

Fingerprint

quantum cascade lasers
tunable lasers
tuning
electric potential
coefficients
injectors
electroluminescence
lasers
thresholds
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

A widely voltage-tunable quantum cascade laser based on "two-step" coupling. / Yao, Yu; Franz, Kale J.; Wang, Xiaojun; Fan, Jen Yu; Gmachl, Claire.

In: Applied Physics Letters, Vol. 95, No. 2, 021105, 2009.

Research output: Contribution to journalArticle

Yao, Yu ; Franz, Kale J. ; Wang, Xiaojun ; Fan, Jen Yu ; Gmachl, Claire. / A widely voltage-tunable quantum cascade laser based on "two-step" coupling. In: Applied Physics Letters. 2009 ; Vol. 95, No. 2.
@article{6ddc0e3bd3984e1ab01947433d41d3ed,
title = "A widely voltage-tunable quantum cascade laser based on {"}two-step{"} coupling",
abstract = "A novel quantum cascade laser design with {"}two-step{"} coupling between the injector and the upper laser state is demonstrated to achieve a widely voltage-tunable laser spectrum. Electroluminescence from this design can be tuned over a range of more than 200 cm-1 with a tuning coefficient of ∼700 cm-1 /V per stage. Lasers based on this design provide a tuning range of ∼100 cm-1 (8.3-9 μm) above threshold with a tuning coefficient of ∼900 cm-1 /V per stage at a constant temperature of 295 K.",
author = "Yu Yao and Franz, {Kale J.} and Xiaojun Wang and Fan, {Jen Yu} and Claire Gmachl",
year = "2009",
doi = "10.1063/1.3179165",
language = "English (US)",
volume = "95",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

TY - JOUR

T1 - A widely voltage-tunable quantum cascade laser based on "two-step" coupling

AU - Yao, Yu

AU - Franz, Kale J.

AU - Wang, Xiaojun

AU - Fan, Jen Yu

AU - Gmachl, Claire

PY - 2009

Y1 - 2009

N2 - A novel quantum cascade laser design with "two-step" coupling between the injector and the upper laser state is demonstrated to achieve a widely voltage-tunable laser spectrum. Electroluminescence from this design can be tuned over a range of more than 200 cm-1 with a tuning coefficient of ∼700 cm-1 /V per stage. Lasers based on this design provide a tuning range of ∼100 cm-1 (8.3-9 μm) above threshold with a tuning coefficient of ∼900 cm-1 /V per stage at a constant temperature of 295 K.

AB - A novel quantum cascade laser design with "two-step" coupling between the injector and the upper laser state is demonstrated to achieve a widely voltage-tunable laser spectrum. Electroluminescence from this design can be tuned over a range of more than 200 cm-1 with a tuning coefficient of ∼700 cm-1 /V per stage. Lasers based on this design provide a tuning range of ∼100 cm-1 (8.3-9 μm) above threshold with a tuning coefficient of ∼900 cm-1 /V per stage at a constant temperature of 295 K.

UR - http://www.scopus.com/inward/record.url?scp=67650718387&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67650718387&partnerID=8YFLogxK

U2 - 10.1063/1.3179165

DO - 10.1063/1.3179165

M3 - Article

VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 2

M1 - 021105

ER -