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Proceedings Paper

Red-shift due to pump intensity in Er:ZBLALiP whispering-gallery mode lasers
Author(s): Patrice Féron; Zhiping Cai; Huiying Xu; Guy Michel Stephan; Philippe Goldner; Michel Mortier
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Paper Abstract

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.

Paper Details

Date Published: 3 April 2003
PDF: 9 pages
Proc. SPIE 4944, Integrated Optical Devices: Fabrication and Testing, (3 April 2003); doi: 10.1117/12.470370
Show Author Affiliations
Patrice Féron, ENSSAT Lab. d'Optronique (France)
Zhiping Cai, Univ. of Xiamen (China)
Huiying Xu, Univ. of Xiamen (China)
Guy Michel Stephan, ENSSAT Lab. d'Optronique (France)
Philippe Goldner, Groupe d'Optique des Terres Rares (France)
Michel Mortier, Groupe d'Optique des Terres Rares (France)

Published in SPIE Proceedings Vol. 4944:
Integrated Optical Devices: Fabrication and Testing
Giancarlo C. Righini, Editor(s)

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