Ridge-Width Dependence on High-Temperature Continuous-Wave Quantum-Cascade Laser Operation

S. Slivken; J. S. Yu; A. Evans; J. David; L. Doris; M. Razeghi

doi:10.1109/LPT.2004.823746

Ridge-Width Dependence on High-Temperature Continuous-Wave Quantum-Cascade Laser Operation

S. Slivken^*, J. S. Yu, A. Evans, J. David, L. Doris, M. Razeghi

^*Corresponding author for this work

Electrical and Computer Engineering

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

51 Scopus citations

Abstract

We report continuous-wave (CW) operation of quantum-cascade lasers (λ = 6 μm) up to a temperature of 313 K (40°C). The maximum CW optical output powers range from 212 mW at 288 K to 22 mW at 313 K and are achieved with threshold current densities of 2.21 and 3.11 kA/cm², respectively, for a high-reflectivity-coated 12-μm-wide and 2-mm-long laser. At room temperature (298 K), the power output is 145 mW at 0.87 A, corresponding to a power conversion efficiency of 1.68%. The maximum CW operating temperature of double-channel ridge waveguide lasers mounted epilayer-up on copper heatsinks is analyzed in terms of the ridge width, which is varied between 12 and 40 μm. A clear trend of improved performance is observed as the ridge narrows.

Original language	English (US)
Pages (from-to)	744-746
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	16
Issue number	3
DOIs	https://doi.org/10.1109/LPT.2004.823746
State	Published - Mar 2004

Funding

The authors would like to acknowledge the interest, support, and encouragement of Dr. Y. S. Park from the Office of Naval Research (ONR), Dr. J. Meyer from the Naval Research Laboratory (NRL), and Dr. J. Carrano from the Defense Advanced Research Projects Agency (DARPA).

Keywords

Continuous-wave (CW) lasers
Infrared measurements
Quantum cascade lasers (QCLs)
Quantum-well lasers

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2004.823746

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title = "Ridge-Width Dependence on High-Temperature Continuous-Wave Quantum-Cascade Laser Operation",

abstract = "We report continuous-wave (CW) operation of quantum-cascade lasers (λ = 6 μm) up to a temperature of 313 K (40°C). The maximum CW optical output powers range from 212 mW at 288 K to 22 mW at 313 K and are achieved with threshold current densities of 2.21 and 3.11 kA/cm2, respectively, for a high-reflectivity-coated 12-μm-wide and 2-mm-long laser. At room temperature (298 K), the power output is 145 mW at 0.87 A, corresponding to a power conversion efficiency of 1.68%. The maximum CW operating temperature of double-channel ridge waveguide lasers mounted epilayer-up on copper heatsinks is analyzed in terms of the ridge width, which is varied between 12 and 40 μm. A clear trend of improved performance is observed as the ridge narrows.",

keywords = "Continuous-wave (CW) lasers, Infrared measurements, Quantum cascade lasers (QCLs), Quantum-well lasers",

author = "S. Slivken and Yu, {J. S.} and A. Evans and J. David and L. Doris and M. Razeghi",

note = "Funding Information: The authors would like to acknowledge the interest, support, and encouragement of Dr. Y. S. Park from the Office of Naval Research (ONR), Dr. J. Meyer from the Naval Research Laboratory (NRL), and Dr. J. Carrano from the Defense Advanced Research Projects Agency (DARPA).",

year = "2004",

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doi = "10.1109/LPT.2004.823746",

language = "English (US)",

volume = "16",

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T1 - Ridge-Width Dependence on High-Temperature Continuous-Wave Quantum-Cascade Laser Operation

AU - Slivken, S.

AU - Yu, J. S.

AU - Evans, A.

AU - David, J.

AU - Doris, L.

AU - Razeghi, M.

N1 - Funding Information: The authors would like to acknowledge the interest, support, and encouragement of Dr. Y. S. Park from the Office of Naval Research (ONR), Dr. J. Meyer from the Naval Research Laboratory (NRL), and Dr. J. Carrano from the Defense Advanced Research Projects Agency (DARPA).

PY - 2004/3

Y1 - 2004/3

N2 - We report continuous-wave (CW) operation of quantum-cascade lasers (λ = 6 μm) up to a temperature of 313 K (40°C). The maximum CW optical output powers range from 212 mW at 288 K to 22 mW at 313 K and are achieved with threshold current densities of 2.21 and 3.11 kA/cm2, respectively, for a high-reflectivity-coated 12-μm-wide and 2-mm-long laser. At room temperature (298 K), the power output is 145 mW at 0.87 A, corresponding to a power conversion efficiency of 1.68%. The maximum CW operating temperature of double-channel ridge waveguide lasers mounted epilayer-up on copper heatsinks is analyzed in terms of the ridge width, which is varied between 12 and 40 μm. A clear trend of improved performance is observed as the ridge narrows.

AB - We report continuous-wave (CW) operation of quantum-cascade lasers (λ = 6 μm) up to a temperature of 313 K (40°C). The maximum CW optical output powers range from 212 mW at 288 K to 22 mW at 313 K and are achieved with threshold current densities of 2.21 and 3.11 kA/cm2, respectively, for a high-reflectivity-coated 12-μm-wide and 2-mm-long laser. At room temperature (298 K), the power output is 145 mW at 0.87 A, corresponding to a power conversion efficiency of 1.68%. The maximum CW operating temperature of double-channel ridge waveguide lasers mounted epilayer-up on copper heatsinks is analyzed in terms of the ridge width, which is varied between 12 and 40 μm. A clear trend of improved performance is observed as the ridge narrows.

KW - Continuous-wave (CW) lasers

KW - Infrared measurements

KW - Quantum cascade lasers (QCLs)

KW - Quantum-well lasers

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Ridge-Width Dependence on High-Temperature Continuous-Wave Quantum-Cascade Laser Operation

Abstract

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Keywords

ASJC Scopus subject areas

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