Observational analysis reveals InAs quantum dot lasers are 10× less sensitive to neutron radiation than InGaAsP wells, indicating superior reliability.
Radiation tolerant lasers are essential for reliable operation in extreme environments. InAs quantum dot lasers are measured to be 10× less sensitive to neutron radiation than InGaAsP quantum well lasers, supported by many-body gain modeling.
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Hughes et al. (2025) studied this question.
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