Silica microspheres were made by melting the tip of a standard telecom fiber. They were coated using a dip coating apparatus with a 70% SiO2 - 30 HfO2 sol-gel derived glass activated by 0.3 % mol of Er3+. The whispering gallery modes of the coated resonator were studied using a full taper - microsphere coupling setup. Upon excitation at 1480 nm sharp peaks in the wavelength range from 1540-1565 nm were observed pertaining to the lasing modes of the microresonator.
"Erbium doped silica microspheres for lasing applications"
A Chiasera;M Ferrari
2012
Abstract
Silica microspheres were made by melting the tip of a standard telecom fiber. They were coated using a dip coating apparatus with a 70% SiO2 - 30 HfO2 sol-gel derived glass activated by 0.3 % mol of Er3+. The whispering gallery modes of the coated resonator were studied using a full taper - microsphere coupling setup. Upon excitation at 1480 nm sharp peaks in the wavelength range from 1540-1565 nm were observed pertaining to the lasing modes of the microresonator.File in questo prodotto:
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