Response of germanium-doped fiber Bragg gratings in radiation environments

Edward W. Taylor; Kent E. Hulick; James M. Battiato; Anthony D. Sanchez; James E. Winter; Andrew R. Pirich

doi:10.1117/12.354676

26 July 1999 Response of germanium-doped fiber Bragg gratings in radiation environments

Edward W. Taylor, Kent E. Hulick, James M. Battiato, Anthony D. Sanchez, James E. Winter, Andrew R. Pirich

Author Affiliations +

Proceedings Volume 3714, Enabling Photonic Technologies for Aerospace Applications; (1999) https://doi.org/10.1117/12.354676
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

Fiber Bragg gratings were examined in situ while exposed to gamma-ray and proton environments that emulated or exceeded nominal low earth orbit radiation doses. Radiation and temperature induced changes to the reflected Bragg grating amplitude and spectral characteristics were observed in fiber gratings not formed under hydrogen loading. THe irradiations were performed in situ, while the ambient temperature near the Bragg grating was allowed to vary. Shifts in the reflected spectra from the Bragg gratings were observed and attributed to ionization and thermal effects. During irradiation, the spectral shifts were observed to move to longer wavelengths, saturate at low dose and to decrease exponentially following the cessation of radiation.

Citation Download Citation

Edward W. Taylor, Kent E. Hulick, James M. Battiato, Anthony D. Sanchez, James E. Winter, and Andrew R. Pirich "Response of germanium-doped fiber Bragg gratings in radiation environments", Proc. SPIE 3714, Enabling Photonic Technologies for Aerospace Applications, (26 July 1999); https://doi.org/10.1117/12.354676

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