47 citations · 109 across the 5 of their papers we have counts for
5 papers
Transition between Kerr comb and stimulated Raman comb in a silica whispering gallery mode microcavity
Shun Fujii, Takumi Kato, Ryo Suzuki +2
We theoretically and experimentally investigated the transition between modulation instability and Raman gain in a small silica microcavity with a large free-spectral range (FSR),…
The effect on Kerr comb generation in a clockwise and counter-clockwise mode coupled microcavity
Shun Fujii, Atsuhiro Hori, Takumi Kato +5
We study the impact of inherent mode coupling between clockwise (CW) and counter-clockwise (CCW) modes on Kerr comb generation in a small whispering-gallery mode microcavity. Our n…
Harmonic mode locking in a high-Q whispering gallery mode microcavity
Takumi Kato, Tomoya Kobatake, Ryo Suzuki +2
A numerical and experimental study of the generation of harmonic mode locking in a silica toroid microcavity is presented. We use a generalized mean-field Lugiato-Lefever equation…
Fabrication of whispering gallery mode cavity using crystal growth
Hiroshi Kudo, Yohei Ogawa, Takumi Kato +2
We developed a new method for fabricating crystalline whispering gallery mode cavities based on laser-heated pedestal growth. We fabricated sapphire cavities and obtained a Q facto…
Polygonal silica toroidal microcavity for controlled optical coupling
Takumi Kato, Wataru Yoshiki, Takasumi Tanabe
We fabricated polygonal silica toroidal microcavities to achieve stable mechanical coupling with an evanescent coupler such as a tapered fiber. The polygonal cavity was fabricated…