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Rasoloniaina, A., Trebaol, S., Huet, V., Le Cren, E., Conti, N. G., Serier-Brault, H., Mortier, M., Dumeige, Y. & Feron, P. (2012) High-gain wavelength-selective amplification and cavity ring down spectroscopy in a fluoride glass erbium-doped microsphere. Opt. Lett. 37 4735–4737.
Added by: Laurent Cournède (2016-03-10 21:28:38) |
| Type de référence: Article Numéro d'identification (ISBN etc.): 0146-9592 Clé BibTeX: Rasoloniaina2012 Voir tous les détails bibliographiques  |
Catégories: MIOPS Mots-clés: amplifiers, laser, modulation, optical resonators, oscillators Créateurs: Conti, Dumeige, Feron, Huet, Le Cren, Mortier, Rasoloniaina, Serier-Brault, Trebaol Collection: Opt. Lett. |
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| Résumé |
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We experimentally demonstrate a compact optical amplifier consisting of a rare-earth-doped whispering-gallery-mode microsphere coupled via a tapered fiber. A gain up to 20 dB is reported in an erbium-doped fluoride glass microsphere 135 mu m in diameter. Below the amplification regime, the optical gain is used to compensate for unavoidable losses due to surface contamination or scattering. Quality factor as high as 2 x 10(9) has been measured by analyzing the transient response of the microsphere excited by a dynamically shifted frequency input signal. (C) 2012 Optical Society of America
Added by: Laurent Cournède |