Watt level performance of quantum cascade lasers in room temperature continuous wave operation at λ∼3.76 μm

N. Bandyopadhyay; Y. Bai; B. Gokden; A. Myzaferi; S. Tsao; S. Slivken; M. Razeghi

doi:10.1063/1.3496489

Watt level performance of quantum cascade lasers in room temperature continuous wave operation at λ∼3.76 μm

N. Bandyopadhyay^*, Y. Bai, B. Gokden, A. Myzaferi, S. Tsao, S. Slivken, M. Razeghi

^*Corresponding author for this work

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

69 Scopus citations

Abstract

An InP-based quantum cascade laser heterostructure emitting at 3.76 μm is grown with gas-source molecular beam epitaxy. The laser core is composed of strain balanced In0.76 Ga0.24 As/ In0.26 Al0.74 As. Pulsed testing at room temperature exhibits a low threshold current density (1.5 kA/ cm²) and high wall plug efficiency (10%). Room temperature continuous wave operation gives 6% wall plug efficiency with a maximum output power of 1.1 W. Continuous wave operation persists up to 95 °C.

Original language	English (US)
Article number	131117
Journal	Applied Physics Letters
Volume	97
Issue number	13
DOIs	https://doi.org/10.1063/1.3496489
State	Published - Sep 27 2010

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Watt level performance of quantum cascade lasers in room temperature continuous wave operation at λ∼3.76 μm",

abstract = "An InP-based quantum cascade laser heterostructure emitting at 3.76 μm is grown with gas-source molecular beam epitaxy. The laser core is composed of strain balanced In0.76 Ga0.24 As/ In0.26 Al0.74 As. Pulsed testing at room temperature exhibits a low threshold current density (1.5 kA/ cm2) and high wall plug efficiency (10%). Room temperature continuous wave operation gives 6% wall plug efficiency with a maximum output power of 1.1 W. Continuous wave operation persists up to 95 °C.",

author = "N. Bandyopadhyay and Y. Bai and B. Gokden and A. Myzaferi and S. Tsao and S. Slivken and M. Razeghi",

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T1 - Watt level performance of quantum cascade lasers in room temperature continuous wave operation at λ∼3.76 μm

AU - Bandyopadhyay, N.

AU - Bai, Y.

AU - Gokden, B.

AU - Myzaferi, A.

AU - Tsao, S.

AU - Slivken, S.

AU - Razeghi, M.

N1 - Funding Information: The authors would like to acknowledge the support, interest, and encouragement of R. S. Rodgers, and M. Rosker from Defense Advanced Research Projects Agency, and experts from the Naval Research Laboratory.

PY - 2010/9/27

Y1 - 2010/9/27

N2 - An InP-based quantum cascade laser heterostructure emitting at 3.76 μm is grown with gas-source molecular beam epitaxy. The laser core is composed of strain balanced In0.76 Ga0.24 As/ In0.26 Al0.74 As. Pulsed testing at room temperature exhibits a low threshold current density (1.5 kA/ cm2) and high wall plug efficiency (10%). Room temperature continuous wave operation gives 6% wall plug efficiency with a maximum output power of 1.1 W. Continuous wave operation persists up to 95 °C.

AB - An InP-based quantum cascade laser heterostructure emitting at 3.76 μm is grown with gas-source molecular beam epitaxy. The laser core is composed of strain balanced In0.76 Ga0.24 As/ In0.26 Al0.74 As. Pulsed testing at room temperature exhibits a low threshold current density (1.5 kA/ cm2) and high wall plug efficiency (10%). Room temperature continuous wave operation gives 6% wall plug efficiency with a maximum output power of 1.1 W. Continuous wave operation persists up to 95 °C.

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Watt level performance of quantum cascade lasers in room temperature continuous wave operation at λ∼3.76 μm

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