Title :
Light coupling between the whispering gallery modes of a coated microsphere and a tapered fiber
Author :
Ristic, D. ; Mazzola, M. ; Chiappini, Andrea ; Feron, Patrice ; Rasoloniaina, Alphonse ; Cibiel, Gilles ; Ivanda, M. ; Righini, Giancarlo C. ; Ferrari, Mauro
Author_Institution :
CSMFO Lab., IFN, Trento, Italy
Abstract :
Spherical microresonators were coated using a 70SiO2 - 30HfO2 glass doped with 0.3 mol% Er3+. The sphere was characterized by coupling a 1480 nm pump laser inside the sphere using a tapered optical fiber and observing the 1530-1580 nm Er3+ emission outcoupled with the same tapered fiber. The measurements were done for different coating thicknesses and compared with theoretical calculations to understand the relationship of the detected signal with the whispering gallery mode electric field profiles.
Keywords :
coatings; electric sensing devices; erbium; fibre optic sensors; hafnium compounds; microcavities; microdisc lasers; micromechanical resonators; micropumps; microsensors; signal detection; silicon compounds; thickness measurement; whispering gallery modes; SiO2-HfO2:Er; coated microsphere; light coupling; pump laser; signal detection; spherical microresonator; tapered optical fiber; thickness measurement; wavelength 1480 nm; wavelength 1530 nm to 1580 nm; whispering gallery mode electric field profile; Coatings; Couplings; Laser excitation; Luminescence; Optical fibers; Refractive index; Whispering gallery modes;
Conference_Titel :
Information & Communication Technology Electronics & Microelectronics (MIPRO), 2013 36th International Convention on
Conference_Location :
Opatija
Print_ISBN :
978-953-233-076-2
