کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1496673 | 992971 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Nanoscaled optical fibre obtained by the sol–gel process in the SiO2–ZrO2 system doped with rare earth ions Nanoscaled optical fibre obtained by the sol–gel process in the SiO2–ZrO2 system doped with rare earth ions](/preview/png/1496673.png)
A SiO2–ZrO2 nanostructured optical fibre is fabricated using the chemical sol–gel method associated to the drawing process; the structural and the waveguiding properties are studied. The refractive index difference (RIP) between the core and the cladding is 0.021 for a 30 mol% ZrO2 – 70 mol% SiO2 core composition. Illumination of the fibre with a supercontinuum source (350–1750 nm) shows that the light is guided over this entire range. The measured attenuation losses are 0.7 dB/m at a 1064 nm wavelength and the calculated cutoff wavelength is 714 nm. To control the nanostructure and the geometric parameters of the fibre, a preliminary study of the SiO2–ZrO2 binary system has been done, by X-ray diffraction (XRD), differential thermal analysis (DTA), thermo gravimetric analysis (TGA), transmission electron microscopy (TEM) and scanning electron microscopy (SEM); in addition the evolution of the sol viscosity with the time is studied.
Journal: Optical Materials - Volume 31, Issue 5, March 2009, Pages 765–768