TY - JOUR
T1 - Observation of energy oscillation between strongly-coupled counter-propagating ultra-high Q whispering gallery modes
AU - Yoshiki, Wataru
AU - Chen-Jinnai, Akitoshi
AU - Tetsumoto, Tomohiro
AU - Tanabe, Takasumi
N1 - Funding Information:
Part of this work is supported by JSPS KAKENHI Grant Number 15H05429 and the Leading Graduate School program for "Science for Development of Super Mature Society" from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) in Japan.
Publisher Copyright:
© 2015 Optical Society of America.
PY - 2015/11/30
Y1 - 2015/11/30
N2 - We report the first experimental observation of an energy oscillation between two coupled ultra-high Q whispering gallery modes in the time domain. Two counter-propagating whispering gallery modes in a silica toroid microcavity were employed for this purpose. The combination of a large coupling coefficient between the two modes and an ultra-high Q factor, which creates a large Γ value of > 10, results in a clear energy oscillation. Our measurement is based on a drop-port measurement technique, which enables us to observe the light energy in the two modes directly. The oscillation period measured in the time domain precisely matched that inferred from mode splitting in the frequency domain, and the measured results showed excellent agreement with results calculated with the developed numerical model.
AB - We report the first experimental observation of an energy oscillation between two coupled ultra-high Q whispering gallery modes in the time domain. Two counter-propagating whispering gallery modes in a silica toroid microcavity were employed for this purpose. The combination of a large coupling coefficient between the two modes and an ultra-high Q factor, which creates a large Γ value of > 10, results in a clear energy oscillation. Our measurement is based on a drop-port measurement technique, which enables us to observe the light energy in the two modes directly. The oscillation period measured in the time domain precisely matched that inferred from mode splitting in the frequency domain, and the measured results showed excellent agreement with results calculated with the developed numerical model.
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U2 - 10.1364/OE.23.030851
DO - 10.1364/OE.23.030851
M3 - Article
AN - SCOPUS:84957548919
SN - 1094-4087
VL - 23
SP - 30851
EP - 30860
JO - Optics Express
JF - Optics Express
IS - 24
ER -