TY - GEN
T1 - Effect of Ionizing Radiation on Optical Transmission of Actively Pumped Yb- Doped Fiber Amplifiers
AU - Fox, Brian P.
AU - Simmons-Potter, Kelly
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/9
Y1 - 2018/9
N2 - 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.
AB - 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.
KW - Aluminosilicate
KW - YDFA
KW - Yb-doped fibers
KW - fiber amplifier
KW - optical fiber
KW - radiation-induced attenuation
KW - rare-earth doped amplifier
KW - rare-earth doped fiber amplifier
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U2 - 10.1109/RADECS45761.2018.9328703
DO - 10.1109/RADECS45761.2018.9328703
M3 - Conference contribution
AN - SCOPUS:85100474457
T3 - 2018 18th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2018
BT - 2018 18th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2018
Y2 - 16 September 2018 through 21 September 2018
ER -