Title of article
Thermal characteristics of quantum-cascade lasers by micro-probe optical spectroscopy
Author/Authors
V.، Spagnolo, نويسنده , , G.، Scamarcio, نويسنده , , C.، Becker, نويسنده , , C.، Sirtori, نويسنده , , D.، Marano, نويسنده , , M.، Troccoli, نويسنده , , F.، Capasso, نويسنده , , C.، Gmachl, نويسنده , , A.M.، Sergent, نويسنده , , A.L.، Hutchinson, نويسنده , , D.L.، Sivco, نويسنده , , A.Y.، Cho, نويسنده , , H.، Page, نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
-297
From page
298
To page
0
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.
Keywords
Distributed systems
Journal title
IEE PROCEEDINGS OPTOELECTRONICS
Serial Year
2003
Journal title
IEE PROCEEDINGS OPTOELECTRONICS
Record number
106831
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