Fiberized fluorescent dye microtubes
2013
In the present work we study the effect of the length of fluorescent dye-filled micro-capillaries on the fluorescence
spectra. Two types of micro-capillaries have been studied: a 100 μm inner diameter fused silica capillary with a
transparent coating and one of the holes of a fiber optic glass ferrule with 125 μm inner diameter. The tubes were filled
with solutions of Rhodamine 6G dissolved in ethanol and then in glycerin. Experimental data show that the maximum
fluorescence and the largest spectral widths are observed for a sample length of about 0.25 mm for the used
concentration. This results show that miniature tunable fiberized dye lasers can be developed using available standard
micro-and fibre-optic components.
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