Proceedings PaperIrradiation And Photobleaching Of All-Silica, Pure Silica Core Fibers At Low Temperatures
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Attenuation spectra have been taken at 76 K and 195 K following a series of Co-60 irra-diation and photobleaching steps of all-silica fibers with both wet and dry pure silica cores. The photobleaching source, an AℓGaAs CW 820 nm emitting laser diode, caused significant attenuation recovery in all fibers at both temperatures over the entire measured wavelength range of 300 nm to 750 nm.