Proton and gamma irradiation of Fabry–Perot quantum cascade lasers for space qualification

Proton and gamma irradiation of Fabry–Perot quantum cascade lasers for space qualification

Fabry-Perot quantum cascade lasers (QCLs) were characterized following irradiation by high-energy (64 MeV) protons and Cobalt-60 gamma rays. Seven QCLs were exposed to total accumulated radiation doses that varied from 20 to 46.3 krad(Si), which are typical exposure levels for electronic components...

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Veröffentlicht in:Applied Optics 2015-01, Vol.54 (3), p.527-534
Hauptverfasser: Myers, Tanya L., Cannon, Bret D., Brauer, Carolyn S., Hansen, Stewart M., Crowther, Blake G.
Format: Artikel
Sprache:eng
Schlagworte:
Exposure
Fabry-Perot
Gamma irradiation
Gamma rays
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Quantum cascade lasers
radiation
Slopes
Space environment
Threshold currents
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Zusammenfassung:Fabry-Perot quantum cascade lasers (QCLs) were characterized following irradiation by high-energy (64 MeV) protons and Cobalt-60 gamma rays. Seven QCLs were exposed to total accumulated radiation doses that varied from 20 to 46.3 krad(Si), which are typical exposure levels for electronic components in a space environment. The QCLs did not show any measurable changes in threshold current or slope efficiency suggesting the suitability of QCLs for use in space-based missions.
ISSN:1559-128X
0003-6935
2155-3165
DOI:10.1364/AO.54.000527