Effect of Ionizing Radiation on Optical Transmission of Actively Pumped Yb- Doped Fiber Amplifiers

Brian P. Fox, Kelly Simmons-Potter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fibers doped with Yb3+ serve as optical amplification elements in many high-power amplification systems, and there is an interest in significantly extending the capabilities of rare-earth doped fiber amplifiers to space-based systems. We investigate the effects of gamma-radiation-induced photodarkening on the performance of such fibers, both for passive as well as active configurations. With an emphasis on low total ionizing doses, passive irradiations were found to show increased absorption across the visible and IR spectrum. Furthermore, continuous-pumping of an Yb3+ -doped fiber amplifier in a gamma radiation environment was found to exhibit significantly greater degradation than a similar intermittently-pumped irradiated amplifier for low total ionizing doses of under 10 krad(Si) [100 Gy(Si)]. We discuss the implications of the data which provide insight into energy-transfer mechanisms in the fibers and the relationship of gamma-radiation-induced photodarkening and pump-radiation-induced photodarkening associated with the observed fiber degradation.

Original languageEnglish (US)
Title of host publication2018 18th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728102160
DOIs
StatePublished - Sep 2018
Event18th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2018 - Goteborg, Sweden
Duration: Sep 16 2018Sep 21 2018

Publication series

Name2018 18th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2018

Conference

Conference18th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2018
Country/TerritorySweden
CityGoteborg
Period9/16/189/21/18

Keywords

  • Aluminosilicate
  • YDFA
  • Yb-doped fibers
  • fiber amplifier
  • optical fiber
  • radiation-induced attenuation
  • rare-earth doped amplifier
  • rare-earth doped fiber amplifier

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Radiation

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