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Communication Dans Un Congrès Année : 2012

Whispering gallery modes in coated silica microspheres

Résumé

Silica microspheres were made by melting the tip of a standard telecom fiber and were coated with a 70SiO2 - 30 HfO2 sol-gel derived glass activated by 0.3 mol % of Er3+ ions. The samples were coated using a dip coating apparatus. The thickness of the coating was estimated to be around 1 μm. The whispering gallery modes of the coated resonator were studied using a full taper - microsphere coupling setup. Upon excitation at 1480 nm sharp peaks at wavelengths 1540- 1565 nm were observed. They were attributed to the whispering gallery modes of the microsphere falling in the wavelength range of the erbium emission.
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Dates et versions

hal-00828565 , version 1 (31-05-2013)

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Davor Ristic, Alessandro Chiasera, Enrico Moser, Patrice Féron, Gilles Cibiel, et al.. Whispering gallery modes in coated silica microspheres. SPIE Photonics Europe 2012 - Conference 8431 "Silicon Photonics and Photonic Integrated Circuits", Apr 2012, Brussels, Belgium. pp.84311P, ⟨10.1117/12.921620⟩. ⟨hal-00828565⟩
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