Photorefractive index gratings in SnO<sub>2</sub>:SiO<sub>2</sub> optical fibres
Permanent photorefractive gratings with considerable refractive index modulations (~3×10<sup>-4</sup>) were written in silica optical fibers doped with very low levels of SnO<sub>2</sub>(~0.15 mol %) using ultraviolet (UV) laser radiation at 248 nm. The photoinduced refractiv...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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2000.
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| Online Access: | Get fulltext |
| LEADER | 01092 am a22001573u 4500 | ||
|---|---|---|---|
| 001 | 13644 | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Brambilla, G. |e author |
| 700 | 1 | 0 | |a Pruneri, V. |e author |
| 700 | 1 | 0 | |a Reekie, L. |e author |
| 245 | 0 | 0 | |a Photorefractive index gratings in SnO<sub>2</sub>:SiO<sub>2</sub> optical fibres |
| 260 | |c 2000. | ||
| 856 | |z Get fulltext |u https://eprints.soton.ac.uk/13644/1/1959.pdf | ||
| 520 | |a Permanent photorefractive gratings with considerable refractive index modulations (~3×10<sup>-4</sup>) were written in silica optical fibers doped with very low levels of SnO<sub>2</sub>(~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/cm<sup>2</sup>). A comparison with GeO<sub>2</sub>:SiO<sub>2</sub> fibers shows that under similar UV intensities saturation takes place for shorter exposure time and comparable refractive index changes are obtainable for GeO<sub>2</sub> concentrations ~10 mol %. | ||
| 540 | |a accepted_manuscript | ||
| 655 | 7 | |a Article | |