15 September 2010 Radiation effects on rare-earth doped optical fibers
Author Affiliations +
Abstract
In this paper, we reviewed our previous work concerning the responses of rare-earth (RE) doped fibers (Yb, Er and Er/Yb) to various types of radiations like γ-rays, X-rays and protons. For all these harsh environments, the main measured macroscopic radiation-induced effect is an increase of the linear attenuation of these waveguides due to the generation of point defects in the RE-doped core and silica-based cladding. To evaluate the vulnerability of this class of optical fibers for space missions, we characterize the growth and decay kinetics of their radiation-induced attenuation (RIA) during and after irradiation for various compositions. Laboratory testing reveals that this class of optical fibers is very sensitive to radiations compared to passive (RE-free) samples. As a consequence, despite the small length used for space applications, the understanding of the radiation-induced effects in this class of optical fibers becomes necessary before their integration as part of fiber-based systems like gyroscopes or communication systems. In this paper, we more particularly discussed about the relative influence of the rare-earth ions (Er3+ and/or Yb3+) and of the glass matrix dopants (Al, P, ...) on the optical degradation due to radiations. This has been done by using a set of five prototype optical fibers designed by the fiber manufacturer iXFiber SAS to enlighten the role of these parameters. Additional spectroscopic tools like confocal microscopy of luminescence are also used to detect possible changes in the spectroscopy of the rare-earth ions and their consequences on the functionality of the active optical fibers.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sylvain Girard, Sylvain Girard, Youcef Ouerdane, Youcef Ouerdane, Marilena Vivona, Marilena Vivona, Blandine Tortech, Blandine Tortech, Thierry Robin, Thierry Robin, Aziz Boukenter, Aziz Boukenter, C. Marcandella, C. Marcandella, Benoît Cadier, Benoît Cadier, Jean-Pierre Meunier, Jean-Pierre Meunier, } "Radiation effects on rare-earth doped optical fibers", Proc. SPIE 7817, Nanophotonics and Macrophotonics for Space Environments IV, 78170I (15 September 2010); doi: 10.1117/12.862706; https://doi.org/10.1117/12.862706
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT

The influence of Yb2+ ions on optical properties and power...
Proceedings of SPIE (February 25 2010)
Spectroscopic properties of Yb-doped silica glass
Proceedings of SPIE (April 27 2001)
Dopant interactions in high-power laser fibers
Proceedings of SPIE (April 04 2005)
New developments in high power eye-safe LMA fibers
Proceedings of SPIE (February 23 2006)

Back to Top