Influence of Operating Conditions on Quantum Cascade Laser Temperature

In this work, the influence of operating conditions on the temperature of a quantum cascade laser (QCL) was studied experimentally by means of thermoreflectance, a nondestructive optical modulation technique providing information on the temperature of the laser facet. The heat load in the devices wa...

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Bibliographic Details
Published in:Journal of electronic materials 2010-06, Vol.39 (6), p.630-634
Main Authors: Pierściński, Kamil, Pierścińska, Dorota, Kosiel, Kamil, Szerling, Anna, Bugajski, Maciej
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electronics and Microelectronics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Heat conductivity
Instrumentation
Lasers
Materials Science
Optical and Electronic Materials
Optical properties
Optics
Physics
Semiconductors
Solid State Physics
Temperature effects
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Summary:In this work, the influence of operating conditions on the temperature of a quantum cascade laser (QCL) was studied experimentally by means of thermoreflectance, a nondestructive optical modulation technique providing information on the temperature of the laser facet. The heat load in the devices was changed by changing the duty cycle at constant pulse repetition rate. The measured temperature increases under pulsed operation, allowing the thermal resistance to be determined.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-010-1213-5