Title :
Ytterbium-doped aluminum-codoped sol-gel silica glass fiber
Author :
Pedrazza, Urs ; Romano, Valerio ; Lüthy, Willy ; Feurer, Thomas
Author_Institution :
Inst. of Appl. Phys., Bern Univ., Switzerland
Abstract :
In this paper, a ytterbium-doped aluminum-codoped silica sol-gel fiber Yb:Al:SiO2 produced by sol-gel method is presented. The fiber was investigated with respect to its optical properties such as index of refraction, attenuation, numerical aperture and fluorescence properties. With the help of FTIR, the residual amount of hydroxyl-groups and its influence on the luminescence yield by nonradiative multi-phonon relaxations were determined. XRD measurements were performed to assess the amorphous structure of the sol-gel core materials.
Keywords :
Fourier transform spectra; X-ray diffraction; aluminium; fluorescence; glass fibres; infrared spectra; optical fibres; optical glass; refractive index; silicon compounds; sol-gel processing; ytterbium; FTIR; SiO2:Yb,Al; XRD measurement; amorphous structure; fluorescence property; hydroxyl-group; luminescence; nonradiative multiphonon relaxation; numerical aperture; optical attenuation; optical property; refractive index; silica sol-gel fiber; sol-gel core material; sol-gel method; ytterbium-doped aluminum-codoped silica glass fiber; Amorphous materials; Apertures; Fluorescence; Glass; Luminescence; Optical attenuators; Optical refraction; Performance evaluation; Silicon compounds; X-ray scattering;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568119
