Figure 1 | Scientific Reports

Figure 1

From: Glass-on-Glass Fabrication of Bottle-Shaped Tunable Microlasers and their Applications

Figure 1

(a) Fabrication steps for making a doped glass microbottle laser on a silica wire, see supplementary file S1. The capillary diameter is 80 μm and the final diameter of the doped glass resonator is 170 μm. (b) Image of the resonator showing a WGM highlighted by green upconversion fluorescence. (c) Lasing spectrum from an Er:Yb doped bottle shaped resonator on a silica capillary. (d) Lasing threshold measurement. (e) Lasing spectra for three different microbottles on a single capillary with a diameter of 42 μm. The diameters of cav1, cav2 and cav3 are 120 μm, 170 μm and 155 μm, respectively.

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