Energy losses in thermally cycled optical fibers constrained in small bend radii

Eric Guild; Gregg Morelli

doi:10.1117/12.977552

4 December 2012 Energy losses in thermally cycled optical fibers constrained in small bend radii

Eric Guild, Gregg Morelli

Proceedings Volume 8530, Laser-Induced Damage in Optical Materials: 2012; 853017 (2012) https://doi.org/10.1117/12.977552
Event: SPIE Laser Damage, 2012, Boulder, Colorado, United States

Abstract

High energy laser pulses were fired into a 365μm diameter fiber optic cable constrained in small radii of curvature bends, resulting in a catastrophic failure. Q-switched laser pulses from a flashlamp pumped, Nd:YAG laser were injected into the cables, and the spatial intensity profile at the exit face of the fiber was observed using an infrared camera. The transmission of the radiation through the tight radii resulted in an asymmetric intensity profile with one half of the fiber core having a higher peak-to-average energy distribution. Prior to testing, the cables were thermally conditioned while constrained in the small radii of curvature bends. Single-bend, double-bend, and U-shaped geometries were tested to characterize various cable routing scenarios.

Citation Download Citation

Eric Guild and Gregg Morelli "Energy losses in thermally cycled optical fibers constrained in small bend radii", Proc. SPIE 8530, Laser-Induced Damage in Optical Materials: 2012, 853017 (4 December 2012); https://doi.org/10.1117/12.977552

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