Photorefractive index gratings in SnO2:SiO2 optical fibres
Brambilla, G., Pruneri, V. and Reekie, L. (2000) Photorefractive index gratings in SnO2:SiO2 optical fibres. Applied Physics Letters, 76, (7), 807-809. (doi:10.1063/1.125591)
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Description/Abstract
Permanent photorefractive gratings with considerable refractive index modulations (~3×10–4) were written in silica optical fibers doped with very low levels of SnO2(~0.15 mol %) using ultraviolet (UV) laser radiation at 248 nm. The photoinduced refractive index change does not show any sign of saturation even for long exposure times (i.e., total fluence >20 kJ/cm2). A comparison with GeO2:SiO2 fibers shows that under similar UV intensities saturation takes place for shorter exposure time and comparable refractive index changes are obtainable for GeO2 concentrations ~10 mol %.
| Item Type: | Article |
|---|---|
| Related URLs: | http://scitation.aip.org/getab...s&gifs=Yes |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| ePrint ID: | 13644 |
| Deposited On: | 01 Jan 2005 |
| Last Modified: | 02 Jul 2010 02:56 |
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