| Autor: |
Dyer, P E, Johnson, A-M, Snelling, H V, Walton, C D |
| Zdroj: |
Journal of Physics D: Applied Physics; November 7, 2001, Vol. 34 Issue: 21 pL109-L112, 4p |
| Abstrakt: |
The high photon energy 157 nm F2 laser has potential applications as a source for modifying the refractive index of glasses for telecommunication device fabrication, e.g. fibre Bragg gratings. At this wavelength even `pure' silica glass exhibits significant absorption and the cladding on fibres may produce non-negligible beam attenuation. Here we report new results using a fibre Bragg grating for in situ monitoring of the temperature rise produced in a silica fibre by 157 nm F2 laser exposure. These results, coupled with thermal modelling, allow the fibre cladding absorption coefficient (~7750 m-1) in the vacuum ultraviolet to be determined. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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