Radiation-Resistant Erbium-Doped Fiber for Spacecraft Applications

Zotov, K. V.; Likhachev, Mikhail E.; Томашук, А.Л.; Bubnov, M M; Yashkov, Mikhail V.; Guryanov, A. N.; Klyamkin, S. N.

doi:10.1109/tns.2008.2001834

Cited by 44 publications

(19 citation statements)

References 14 publications

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“…By changing the fabrication process, another group of researchers showed that it is possible to avoid the Al codoping, improving the radiation resistance of erbium-doped optical fibers [7]. A last technique working for both phosphosilicate or aluminosilicate optical fibers is the loading of the fiber core and cladding with hydrogen (or deuterium); in this case, it has been shown that the amplifier radiation response is greatly improved but the positive impact of the treatment remains time-dependent and not really adapted in its current forms to long term space missions [6,11,12]. …”

Section: Context Of Our Workmentioning

confidence: 99%

Radiation hardening of optical fibers and fiber sensors for space applications: recent advances

Girard

Ouerdane

Pinsard³

et al. 2017

International Conference on Space Optics — ICSO 2014

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Section: Context Of Our Workmentioning

confidence: 99%

Radiation hardening of optical fibers and fiber sensors for space applications: recent advances

Girard

Ouerdane

Pinsard³

et al. 2017

International Conference on Space Optics — ICSO 2014

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“…Many researchers have demonstrated that H 2 -loading is beneficial for improving the radiation resistance of fibers [ 13 , 14 ], but there are some limitations as well. For example, H 2 molecules can easily escape, the mechanical strength of the coating may decrease, and H 2 causes additional absorption [ 15 ]. Even worse, owing to the reducing environment caused by H 2 , Yb 3+ ions are easily reduced into Yb 2+ ions [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of GeO2 Content on the Spectral and Radiation-Resistant Properties of Yb/Al/Ge Co-Doped Silica Fiber Core Glasses

et al. 2022

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In this study, Yb/Al/Ge co-doped silica fiber core glasses with different GeO2 contents (0–6.03 mol%) were prepared using the sol–gel method combined with high-temperature sintering. The absorption, fluorescence, radiation-induced absorption, continuous-wave electron paramagnetic resonance spectra, and fluorescence decay curves were recorded and analyzed systematically before and after X-ray irradiation. The effects of GeO2 content on the valence variations of Yb3+/Yb2+ ions, spectral properties of Yb3+ ions, and radiation resistance of Yb/Al/Ge co-doped silica glasses were systematically studied. The results show that even if the GeO2 content of the sample is relatively low (0.62 mol%), it can inhibit the generation of Yb2+ ions with slight improvement in the spectral properties of Yb3+ ions in the pristine samples and effectively improve its radiation resistance. Direct evidence confirms that the generation of trapped-electron centers (Yb2+/Si-E’/Al-E’) and trapped-hole centers (Al-OHC) was effectively inhibited by Ge co-doping. This study provides a theoretical reference for the development of high-performance, radiation-r esistant Yb-doped silica fibers.

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“…Several techniques have then been applied to enhance the fiber radiation resistance such as codoping the fiber core with cerium [ 8 ] or loading the fiber with H 2 or D 2 gas. [ 9 ] These hardening techniques at the material levels are based on the passivation of the Al‐related defects by the H 2 or D 2 gas or on favoring the competition between radiation‐induced defects to lower the RIA at the operating wavelengths. It is also possible to improve the radiation tolerance acting at the component level with appropriate fiber designs.…”

Section: Introductionmentioning

confidence: 99%

Temperature Influence on the Radiation Responses of Erbium‐Doped Fiber Amplifiers

Aubry

Mescia

Morana

et al. 2021

Physica Status Solidi (a)

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The gain degradations of an Er‐doped fiber amplifier (EDFA) during the exposure of its active Er‐doped fiber to 40 keV X‐rays (≈2.7 mrad(SiO2) s−1 up to 300 krad) at three different temperatures: −40, 25, and 120 °C, are characterized. The spectral dependence of the fiber radiation‐induced attenuation (RIA) is monitored in situ in the 900–1600 nm spectral range, highlighting a combined temperature and radiation effect on the near‐infrared RIA levels and kinetics. At the system level, the kinetics of EDFA gain degradation are only slightly affected by varying the irradiation temperature for the tested backward pumping EDFA configuration. On the theoretical side, a homemade computer code based on the particle swarm optimization and the rate equations to model the radiation behavior of EDFA is used, considering only the RIA impact on its gain. Despite a good agreement between experimental and simulation results below the dose of 70 krad corresponding to current space missions, the comparison between the modeled and measured gain degradation kinetics at higher doses shows that a more precise modeling of the temperature impact on the absorption properties of the erbium ions is necessary to better reproduce the EDFA radiation behavior for future space missions.

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Radiation-Resistant Erbium-Doped Fiber for Spacecraft Applications

Cited by 44 publications

References 14 publications

Radiation hardening of optical fibers and fiber sensors for space applications: recent advances

Radiation hardening of optical fibers and fiber sensors for space applications: recent advances

Influence of GeO2 Content on the Spectral and Radiation-Resistant Properties of Yb/Al/Ge Co-Doped Silica Fiber Core Glasses

Temperature Influence on the Radiation Responses of Erbium‐Doped Fiber Amplifiers

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