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Comparative study of gamma-ray, neutron and electron beam irradiated index-guided laser diodes

Sporea, DG, Sporea, RA, Oproiu, C and Vatǎ, I (2005) Comparative study of gamma-ray, neutron and electron beam irradiated index-guided laser diodes Proceedings of the European Conference on Radiation and its Effects on Components and Systems, RADECS.

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Abstract

The effect of gamma-ray, neutron and electron beam irradiation on index-guided laser diodes was investigated off-line. The laser diodes subjected to this evaluation were AlGaAs, low power (8 mW), single transversal mode lasers emitting in the near-IR. The diodes degradation was assessed up to the total gamma dose of 1.23 MGy, the total electron beam dose of 0.6 MGy, and to the neutron fluence of 1.2 × 1013 n/cm2. The electrical, optical and optoelectronic characteristics were studied. The major irradiation induced changes are related to the embedded photodiode responsivity, the laser threshold current and its external quantum efficiency.

Item Type: Article
Authors :
NameEmailORCID
Sporea, DGUNSPECIFIEDUNSPECIFIED
Sporea, RAr.a.sporea@surrey.ac.ukUNSPECIFIED
Oproiu, CUNSPECIFIEDUNSPECIFIED
Vatǎ, IUNSPECIFIEDUNSPECIFIED
Date : 1 December 2005
Identification Number : 10.1109/RADECS.2005.4365557
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:31
Last Modified : 17 May 2017 15:04
URI: http://epubs.surrey.ac.uk/id/eprint/835689

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