15 October 1984 Radiation Response Of Optical Fibers And Selfoc Microlenses At 1.3 μm
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The incremental loss induced at 1.3 μm in multimode and single mode optical fiber waveguides has been studied at 23 C and -55 C in situ as a function of time after high dose rate (9000 rads/min) steady state exposure and as a function of dose during low dose rate (- 1 rad/day) irradiation. Undoped and binary Ge-doped silica core fibers have demonstrated the lower radiation responses and better recoveries at 23 C; the induced losses substantially increase by factors of 8-18 when exposed at -55 C. Selective P doping on the fiber centerline or in the cladding has been found to reduce this temperature dependence, but increased damage and less recovery at 23 C have been noted. Measurements of the radiation response of Selfoc Microlenses have shown that the induced loss in a single lens at 1.3 I'm is only - 1 dB after an exposure of 2 x 104 rads; the SLS lenses are more radiation sensitive than the SLW lenses.
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E. J. Friebele, E. J. Friebele, K. J. Long, K. J. Long, C. G. Askins, C. G. Askins, M. E. Gingerich, M. E. Gingerich, } "Radiation Response Of Optical Fibers And Selfoc Microlenses At 1.3 μm", Proc. SPIE 0506, Fiber Optics in Adverse Environments II, (15 October 1984); doi: 10.1117/12.944926; https://doi.org/10.1117/12.944926

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