Gamma-Radiation-Induced Photodarkening in Unpumped Optical Fibers Doped With Rare-Earth Constituents

Philip, Fox, Brian; Simmons-Potter, K.; Thomes, W. J.; Kliner, Dahv A. V.

doi:10.1109/tns.2010.2043854

Cited by 35 publications

(19 citation statements)

References 31 publications

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“…Previous studies were dedicated to identify the radiation induced centres responsible for the attenuation. Most are carried out in passive configuration [2]. Those experiments demonstrated that induced losses are principally related to radiation induced defects in the glass matrix doped in general with P and/or Al [3].…”

Section: Introductionmentioning

confidence: 99%

Radiation hardening of rare-earth doped fiber amplifiers

Vivona

Girard

Marcandella

et al. 2017

International Conference on Space Optics — ICSO 2012

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Abstract-We investigated the radiation hardening of optical fiber amplifiers operating in space environments. Through a real-time analysis in active configuration, we evaluated the role of Ce in the improvement of the amplifier performance against ionizing radiations. Ce-codoping is an efficient hardening solution, acting both in the limitation of defects in the host glass matrix of RE-doped optical fibers and in the stabilization of lasing properties of the Er 3+ -ions. On the one hand, in the nearinfrared region, radiation induced attenuation measurements show the absence of radiation induced P-related defect species in host glass matrix of the Ce-codoped active fibers; on the other hand, in the Ce-free fiber, the higher lifetime variation shows stronger local modifications around the Er 3+ -ions with the absence of Ce.

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Section: Introductionmentioning

confidence: 99%

Radiation hardening of rare-earth doped fiber amplifiers

Vivona

Girard

Marcandella

et al. 2017

International Conference on Space Optics — ICSO 2012

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“…Indeed when propagating in fibers, the peak power is quickly limited by non-linearities due to the small core size and the large fiber length [4]. Moreover erbium doped fibers are known to be very sensitive to radiations [5]. The resulting radiation induced attenuation (RIA) will quickly reduce the transmitter performances.…”

Section: Introductionmentioning

confidence: 99%

High power pulsed fiber laser development for Co2 space based dial system

Canat

Gouët

Lombard

et al. 2017

International Conference on Space Optics — ICSO 2014

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“…Hybrid Master Oscillator Power Amplifiers (MOPAs) combining a Distributed Feedback (DFB) semiconductor laser as seed laser and Erbium Doped Fiber Amplifiers (EDFAs) working in pulsed conditions have been investigated in the context of NASA mission ASCENDS [11]. However, the use of active optical fibers in space applications requires specific attention to the radiation shielding, the orbit and the duration of the flight, since it is known that fiber amplifier materials have low radiation hardness [12]. All-semiconductor laser sources are very interesting candidates for space-borne atmospheric sensing applications, due to their compactness, high efficiency, reliability, and radiation hardness.…”

Section: Introductionmentioning

confidence: 99%