TY - GEN
T1 - Optimization of coupling condition in distance between the sphere and the tapered fiber for diameter measurement of microsphere by using WGM resonance
AU - Adachi, Atsushi
AU - Michihata, Masaki
AU - Hayashi, Terutake
AU - Takaya, Yasuhiro
N1 - Funding Information:
This work was financially supported by JSPS Grant-in-aid for challenging exploratory research (No. 24656102) and also Mitutoyo association for science and technology (MAST).
PY - 2014
Y1 - 2014
N2 - In this study, it was proposed that whispering gallery mode (WGM) resonances was applied for diameter measurement of microsphere. WGM resonances were excited in a microsphere by introducing light through tapered fiber that thinned optical fiber to a few micrometers. Resonance wavelengths could be measured by monitoring intensity of the transmitted light of tapered fiber, since the light is strongly coupled to the microsphere at the resonance wavelengths. Therefore it is important to address the coupling conditions in order to measure WGM resonances accurately. Thus, optimization of the coupling is key issue to determine the diameter of a microsphere. Numerical analysis was implemented to estimate the coupling coefficients of each modes of WGM. Then the coupling was conducted experimentally as parameter was distance between the sphere and the tapered fiber.
AB - In this study, it was proposed that whispering gallery mode (WGM) resonances was applied for diameter measurement of microsphere. WGM resonances were excited in a microsphere by introducing light through tapered fiber that thinned optical fiber to a few micrometers. Resonance wavelengths could be measured by monitoring intensity of the transmitted light of tapered fiber, since the light is strongly coupled to the microsphere at the resonance wavelengths. Therefore it is important to address the coupling conditions in order to measure WGM resonances accurately. Thus, optimization of the coupling is key issue to determine the diameter of a microsphere. Numerical analysis was implemented to estimate the coupling coefficients of each modes of WGM. Then the coupling was conducted experimentally as parameter was distance between the sphere and the tapered fiber.
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U2 - 10.1007/978-3-319-05711-8_7
DO - 10.1007/978-3-319-05711-8_7
M3 - Conference contribution
AN - SCOPUS:84902477748
SN - 9783319057101
T3 - Lecture Notes in Electrical Engineering
SP - 63
EP - 72
BT - Progress in Optomechatronic Technologies - Proceedings of the 2013 International Symposium on Optomechatronic Technologies
PB - Springer Verlag
T2 - 2013 International Symposium on Optomechatronic Technologies
Y2 - 28 October 2013 through 30 October 2013
ER -