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

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

doi:10.1063/1.3179165

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 journal › Article › peer-review

15 Scopus citations

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 language	English (US)
Article number	021105
Journal	Applied Physics Letters
Volume	95
Issue number	2
DOIs	https://doi.org/10.1063/1.3179165
State	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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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",

note = "Funding Information: This work is supported in part by MIRTHE (NSF-ERC Grant No. EEC-0540832).",

year = "2009",

doi = "10.1063/1.3179165",

language = "English (US)",

volume = "95",

journal = "Applied Physics Letters",

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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

N1 - Funding Information: This work is supported in part by MIRTHE (NSF-ERC Grant No. EEC-0540832).

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.

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DO - 10.1063/1.3179165

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

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ER -

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

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