Cascade emissions of an erbium-ytterbium doped silica-zirconia nanostructured optical fiber under supercontinuum irradiation

Brasse, Gurvan; Restoin, Christine; Auguste, Jean-Louis; Blondy, Jean-Marc
June 2009
Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p241903
Academic Journal
An erbium-ytterbium doped silica-zirconia nanostructured optical fiber is elaborated by using the chemical sol-gel method and its waveguiding properties are studied. A supercontinuum irradiation of the so-fabricated fiber leads to an exotic cascade emission of photons at 515 and 640 nm, as well as a wide emission band between 530 and 590 nm. Upconversion mechanisms and downconversion mechanisms are finally highlighted to explain these phenomena.


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