Neutron testing of high-power optical fibers

M. Cheeseman; M. Bowden; A. Akinci; S. Knowles; L. Webb

doi:10.1117/12.977489

4 December 2012 Neutron testing of high-power optical fibers

M. Cheeseman, M. Bowden, A. Akinci, S. Knowles, L. Webb

Proceedings Volume 8530, Laser-Induced Damage in Optical Materials: 2012; 853018 (2012) https://doi.org/10.1117/12.977489
Event: SPIE Laser Damage, 2012, Boulder, Colorado, United States

Abstract

A selection of commercially available high-power optical fibres have been characterised for radiation susceptibility in Sandia’s Annular Core Research Reactor (ACRR). The fibres were subjected to a total gamma and neutron dose >2 Mrad(Si) in a 7 ms pulse. The neutron fluence was >10¹⁵ n/cm². Changes in the transmission characteristics of optical fibres carrying high energy, short duration laser pulses (power densities of around 1.5 GW/cm²) were measured. All fibres survived at least two consecutive radiation exposures, showing typical transient transmission losses of around 20%. Post radiation exposure, the transmission characteristics returned to those of pristine fibres within one minute.

Citation Download Citation

M. Cheeseman, M. Bowden, A. Akinci, S. Knowles, and L. Webb "Neutron testing of high-power optical fibers", Proc. SPIE 8530, Laser-Induced Damage in Optical Materials: 2012, 853018 (4 December 2012); https://doi.org/10.1117/12.977489

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