Abstract

The main goal of the present work is to study the impact of Er–SiO₂ and Er–Al₂O₃ nanoparticles on the radiation induced defects in germano-silica optical fibers with Al/Ge ranges over 0.1–150. These fibers are prepared by a modified chemical vapor deposition technique and are characterized by optical absorption and electron paramagnetic resonance spectroscopy. High amount of Ge, Er–SiO₂ nanoparticles-derived optical fibers exhibit lower radiation induced attenuation than those with a low Ge content undoped or doped with Al₂O₃ nanoparticles. Furthermore, the behavior of point defects namely GeE’, Ge(1), SiE’, nonbridging oxygen hole centers, and H(1) is reported according to the Al/Ge ratio. In contrast to the optical fiber preforms, no Al-related defects are found in the optical fibers. Therefore, the results evidence the strong radiation tolerance by the virtue of the nanoparticle doping, which is enabling technology for the development of the photonic and space applications in the radiation fields.

© 2016 EU

Effect of the GeO₂ content on the radiation resistance of Er³⁺ -doped silica glasses and fibers

Yan Jiao, Qiubai Yang, Mengting Guo, Xiben Ma, Chongyun Shao, Chunlei Yu, and And Lili Hu
Opt. Mater. Express 11(7) 1885-1897 (2021)

Luminescence enhancement by Au nanoparticles in Er³⁺-doped germano-silicate optical fiber

Aoxiang Lin, Seongjae Boo, Dae Seung Moon, Hye Jeong Jeong, Youngjoo Chung, and Won-Taek Han
Opt. Express 15(14) 8603-8608 (2007)

Improved radiation resistance of an Er-doped silica fiber by a preform pretreatment method

Yan Jiao, Qiubai Yang, Yiming Zhu, Fan Wang, Lei Zhang, Meng Wang, Shikai Wang, Chongyun Shao, Chunlei Yu, and Lili Hu
Opt. Express 30(4) 6236-6247 (2022)

Radiation-induced reversible thermal effect in Er³⁺/Yb³⁺-codoped silica fibers

Desheng Fan, Gui Xiao, Edward Obbard, Justin Davies, Dan Sporea, Yanhua Luo, and Gang-Ding Peng
Opt. Lett. 43(14) 3385-3388 (2018)

X-ray irradiation effects on fluorine-doped germanosilicate optical fibers

D. Di Francesca, A. Boukenter, S. Agnello, S. Girard, A. Alessi, P. Paillet, C. Marcandella, N. Richard, F.M. Gelardi, and Y. Ouerdane
Opt. Mater. Express 4(8) 1683-1695 (2014)