Thermal characteristics of quantum-cascade lasers by micro-probe optical spectroscopy

V. Spagnolo; G. Scamarcio; D. Marano; M. Troccoli; F. Capasso; C. Gmachl; A. M. Sergent; A. L. Hutchinson; D. L. Sivco; A. Y. Cho; H. Page; C. Becker; C. Sirtori

doi:10.1049/ip-opt:20030610

Thermal characteristics of quantum-cascade lasers by micro-probe optical spectroscopy

V. Spagnolo, G. Scamarcio, D. Marano, M. Troccoli, F. Capasso, C. Gmachl, A. M. Sergent, A. L. Hutchinson, D. L. Sivco, A. Y. Cho, H. Page, C. Becker, C. Sirtori

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

22 Scopus citations

Abstract

The facet temperature profile and the thermal resistance of operating quantum-cascade lasers (QCLs) have been assessed using a microprobe band-to-band photoluminescence technique. Substrate-side and epilayer-side-mounted QCLs based on GaInAs/AlInAs/InP and GaAs/AlGaAs material systems have been compared. The dependence of the thermal resistance on the CW or pulsed injection conditions and its correlation with the output power have been studied. These results were used as inputs for a two-dimensional heat-diffusion model which gives the heat fluxes and the thermal conductivity of the active regions, in order to design QCLs with improved thermal properties.

Original language	English (US)
Pages (from-to)	298-305
Number of pages	8
Journal	IEE Proceedings: Optoelectronics
Volume	150
Issue number	4
DOIs	https://doi.org/10.1049/ip-opt:20030610
State	Published - Aug 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1049/ip-opt:20030610

Cite this

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title = "Thermal characteristics of quantum-cascade lasers by micro-probe optical spectroscopy",

abstract = "The facet temperature profile and the thermal resistance of operating quantum-cascade lasers (QCLs) have been assessed using a microprobe band-to-band photoluminescence technique. Substrate-side and epilayer-side-mounted QCLs based on GaInAs/AlInAs/InP and GaAs/AlGaAs material systems have been compared. The dependence of the thermal resistance on the CW or pulsed injection conditions and its correlation with the output power have been studied. These results were used as inputs for a two-dimensional heat-diffusion model which gives the heat fluxes and the thermal conductivity of the active regions, in order to design QCLs with improved thermal properties.",

author = "V. Spagnolo and G. Scamarcio and D. Marano and M. Troccoli and F. Capasso and C. Gmachl and Sergent, {A. M.} and Hutchinson, {A. L.} and Sivco, {D. L.} and Cho, {A. Y.} and H. Page and C. Becker and C. Sirtori",

year = "2003",

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doi = "10.1049/ip-opt:20030610",

language = "English (US)",

volume = "150",

pages = "298--305",

journal = "IEE Proceedings: Optoelectronics",

issn = "1350-2433",

publisher = "Institute of Electrical Engineers",

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TY - JOUR

T1 - Thermal characteristics of quantum-cascade lasers by micro-probe optical spectroscopy

AU - Spagnolo, V.

AU - Scamarcio, G.

AU - Marano, D.

AU - Troccoli, M.

AU - Capasso, F.

AU - Gmachl, C.

AU - Sergent, A. M.

AU - Hutchinson, A. L.

AU - Sivco, D. L.

AU - Cho, A. Y.

AU - Page, H.

AU - Becker, C.

AU - Sirtori, C.

PY - 2003/8

Y1 - 2003/8

N2 - The facet temperature profile and the thermal resistance of operating quantum-cascade lasers (QCLs) have been assessed using a microprobe band-to-band photoluminescence technique. Substrate-side and epilayer-side-mounted QCLs based on GaInAs/AlInAs/InP and GaAs/AlGaAs material systems have been compared. The dependence of the thermal resistance on the CW or pulsed injection conditions and its correlation with the output power have been studied. These results were used as inputs for a two-dimensional heat-diffusion model which gives the heat fluxes and the thermal conductivity of the active regions, in order to design QCLs with improved thermal properties.

AB - The facet temperature profile and the thermal resistance of operating quantum-cascade lasers (QCLs) have been assessed using a microprobe band-to-band photoluminescence technique. Substrate-side and epilayer-side-mounted QCLs based on GaInAs/AlInAs/InP and GaAs/AlGaAs material systems have been compared. The dependence of the thermal resistance on the CW or pulsed injection conditions and its correlation with the output power have been studied. These results were used as inputs for a two-dimensional heat-diffusion model which gives the heat fluxes and the thermal conductivity of the active regions, in order to design QCLs with improved thermal properties.

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DO - 10.1049/ip-opt:20030610

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JO - IEE Proceedings: Optoelectronics

JF - IEE Proceedings: Optoelectronics

IS - 4

ER -

Thermal characteristics of quantum-cascade lasers by micro-probe optical spectroscopy

Abstract

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