Red-shift Due to Pump Intensity in Er:ZBLALiP Whispering Gallery Mode Lasers - Archive ouverte HAL
Communication Dans Un Congrès Année : 2003

Red-shift Due to Pump Intensity in Er:ZBLALiP Whispering Gallery Mode Lasers

Résumé

A new kind of Erbium doped heavy fluoride glass Er:ZBLALiP has been studied. Microspheres were fabricated with this fluoride glass. Whispering Gallery Mode laser spectra around 1550 nm were analyzed for different sphere diameters and Erbium concentrations (from 0.01% to 0.2% by mole) under pumping by a fiber taper at 1480 nm. Red-shift effect on the frequencies of both fluorescence and laser spectra is experimentally observed when the pump power is increased, originating from thermal effects. A spectroscopic technique based on the green upconversion fluorescence is used to compute a loading effective temperature for the Er:ZBLALiP microsphere and this further allows us to calibrate the properties of the microsphere laser in terms of the thermal expansion as well as the variation of the refractive index.
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hal-00159318 , version 1 (27-04-2022)

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Patrice Feron, Zhiping P. Caï, Huiying Y. Xu, Guy Stephan, P. Goldner, et al.. Red-shift Due to Pump Intensity in Er:ZBLALiP Whispering Gallery Mode Lasers. Photonics Fabrication Europe 2002 Proceedings Volume 4944, Integrated Optical Devices : Fabrication and Testing, Oct 2002, Bruges, Belgium. pp.32-40, ⟨10.1117/12.470370⟩. ⟨hal-00159318⟩
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