6533b859fe1ef96bd12b72ae
RESEARCH PRODUCT
Radiation hardening of Rare-Earth doped fiber amplifiers
Marilena VivonaMarco CannasS GirardE PinsardA LaurentT RobinB CadierA BoukenterY Ouerdanesubject
Optical amplifier optical spectroscopy Infrared Spectra Laser Excitation Rare-Earth Elementsdescription
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 Er3+-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 Er3+-ions with the absence of Ce.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |