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Space radiation effects on erbium-doped fiber devices: sources, amplifiers, and passive measurements

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2 Author(s)
Williams, G.L.M. ; Naval Res. Lab., Washington, DC, USA ; Friebele, E.J.

Measurements have been made of the effect of γ-irradiation on the performance of active erbium-doped fiber devices. These include the decrease in optical power of an erbium-doped fiber amplifier (EDFA) and a superluminescent source (SLS), and the shift in centroid wavelength of the SLS with exposure. Calculations have been performed to correlate these effects with the radiation-induced absorption measured passively. Excellent agreement was obtained for the radiation-induced power loss in the EDFA, and good agreement was obtained for the SLS. However, the calculation underestimated the centroid wavelength shift in the SLS by a factor of ~3. A model has been developed to extrapolate the results of passive loss measurements to the low dose rates typical of the natural space environment

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Nuclear Science, IEEE Transactions on  (Volume:45 ,  Issue: 3 )