We investigated the coupled radiation and temperature effect on the gain degradation of Erbium Doped Fiber Amplifier (EDFA) and Erbium-Ytterbium Doped Fiber Amplifier (EYDFA). The irradiation temperatures range from -40°C to 120°C. Steady state X-ray (40 keV, 300 krad (SiO2), ~27 rad/s) experiments provide evidence for a minor coupled radiation and temperature effect on the gains of both reference and radiation-tolerant EDFA and EYDFA. This is an important result as it validates the reliance on room-temperature testing in establishing the suitability of fiber amplifiers for space applications. Furthermore, we also investigated the Radiation Induced Attenuation (RIA) kinetics during and after the various rare-earth doped fiber irradiations to improve our knowledge of the basic radiation-effects mechanisms and their dependence on the temperature during irradiation. It appears that these effects also depend on the presence of Cerium, a codopant that is incorporated to passivate the Al or P-related defects and then to enhance the amplifier radiation tolerance.
Combined Temperature and Radiation Effects on the Gain of Er-and Er-Yb doped Fiber Amplifiers / Aubry, M.; Morana, A.; Mescia, L.; Mekki, J.; Ranger, C.; Laurent, A.; Robin, T.; Marin, E.; Ouerdane, Y.; Boukenter, A.; Girard, S.. - In: IEEE TRANSACTIONS ON NUCLEAR SCIENCE. - ISSN 0018-9499. - STAMPA. - 68:5(2021), pp. 793-800. [10.1109/TNS.2021.3069016]
Combined Temperature and Radiation Effects on the Gain of Er-and Er-Yb doped Fiber Amplifiers
Mescia L.Conceptualization
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2021-01-01
Abstract
We investigated the coupled radiation and temperature effect on the gain degradation of Erbium Doped Fiber Amplifier (EDFA) and Erbium-Ytterbium Doped Fiber Amplifier (EYDFA). The irradiation temperatures range from -40°C to 120°C. Steady state X-ray (40 keV, 300 krad (SiO2), ~27 rad/s) experiments provide evidence for a minor coupled radiation and temperature effect on the gains of both reference and radiation-tolerant EDFA and EYDFA. This is an important result as it validates the reliance on room-temperature testing in establishing the suitability of fiber amplifiers for space applications. Furthermore, we also investigated the Radiation Induced Attenuation (RIA) kinetics during and after the various rare-earth doped fiber irradiations to improve our knowledge of the basic radiation-effects mechanisms and their dependence on the temperature during irradiation. It appears that these effects also depend on the presence of Cerium, a codopant that is incorporated to passivate the Al or P-related defects and then to enhance the amplifier radiation tolerance.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
