Coherent emission at 537 nm from IR-pumped erbium-doped silica microspheres

Low pump threshold upconversion narrowband emission at 537 nm in a simple system of erbium-doped silica microsphere at the tip of a fiber is reported. The emission comes out radially (not from whispering gallery modes) and is strongly enhanced by a thin metal coating, in particular with platinum. Th...

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Veröffentlicht in:	Optics letters 2014-02, Vol.39 (4), p.907-909
Hauptverfasser:	Pham, Van Hoi, Nguyen, The Anh, Ngo, Quang Minh, Coisson, Roberto
Format:	Artikel
Sprache:	eng
Schlagworte:	Emission Erbium Fibers Microspheres Silicon dioxide Thresholds Upconversion Wavelengths Whispering gallery modes
Online-Zugang:	Volltext
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