Thermal stability of oxygen-modulated chemical-composition gratings in standard telecommunication fiber
2004 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 29, no 11, 1185-1187 p.Article in journal (Refereed) Published
Experimental results and a discussion on the formation and decay of oxygen-modulated chemical-composition gratings in a standard telecommunication fiber are presented. Comparison between the decay experiment and the model provides a diffusion coefficient with an activation energy of 490 kJ/mol, which is in close agreement with reported values of oxygen self-diffusion in silica. The gratings have a diffusion-controlled decay behavior, with more than 50% of the reflectivity remaining after 7.5 h at a temperature of 1230degreesC. The gratings show higher thermal stability when heated in air than in an inert argon atmosphere.
Place, publisher, year, edition, pages
2004. Vol. 29, no 11, 1185-1187 p.
bragg gratings, optical fibers, silica
IdentifiersURN: urn:nbn:se:kth:diva-23422ISI: 000221482100005OAI: oai:DiVA.org:kth-23422DiVA: diva2:342120
QC 201005252010-08-102010-08-10Bibliographically approved