Growth dynamics of chemical composition gratings in flourine-doped silica optical fibers
2002 (English)In: Optics Letters, ISSN 0146-9592, E-ISSN 1539-4794, Vol. 27, 1974-1976 p.Article in journal (Refereed) Published
The refractive-index modulation of chemical composition gratings in fluorine-germanium-doped silica fibers as a function of thermal treatment during manufacturing has been studied. The final grating strength was found to depend strongly on an intermediate annealing step, with an optimum temperature near 600-700 degrees C, before development at a fixed temperature of 1000 degrees C. Low-temperature treatment, aimed at removing any remaining hydrogen from the fiber, performed at 100 degrees C for 20 h before the annealing step, also significantly increased the final refractive-index modulation.
Place, publisher, year, edition, pages
2002. Vol. 27, 1974-1976 p.
IdentifiersURN: urn:nbn:se:kth:diva-13203OAI: oai:DiVA.org:kth-13203DiVA: diva2:321821
QC 201006022010-06-022010-06-022010-06-07Bibliographically approved