Comparison of gamma and proton-induced radiation damage in long-wavelength VCSELs

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Abstract

We studied long-wavelength vertical-cavity surface-emitting laser diodes (LW-VCSELs) emitting in the 1.4-1.7 µm range under gamma radiation up to 9 MGy and 36 MeV protons up to 1013 p/cm², in order to compare the impact of both ionizing and displacement damage on their optical and electrical properties. The limited threshold shift and slope efficiency degradation of these state-of-the-art electrically-pumped laser diodes allow us to envisage data and sensor applications in various radiation environments.

Details

Original languageEnglish
Title of host publicationProceedings of the 9th European Conference on Radiation and its Effects on Components and Systems
Place of PublicationNew York, NY, United States
Publication statusPublished - 12 Sep 2007
Event9th European Conference on Radiation and Its Effects on Components and Systems (RADECS 2007) - Deauville, France
Duration: 10 Sep 200714 Sep 2007

Conference

Conference9th European Conference on Radiation and Its Effects on Components and Systems (RADECS 2007)
CountryFrance
CityDeauville
Period2007-09-102007-09-14

Keywords

  • long-wavelength, radiation damage, VCSELs

ID: 175674