158 citations · 797 across the 22 of their papers we have counts for
22 papers
Mechanically actuated Kerr soliton microcombs
Shun Fujii, Koshiro Wada, Soma Kogure +1
Mode-locked ultrashort pulse sources with a repetition rate of up to several tens of gigahertz greatly facilitate versatile photonic applications such as frequency synthesis, metro…
Versatile tuning of Kerr soliton microcombs in crystalline microresonators
Shun Fujii, Koshiro Wada, Ryo Sugano +4
Microresonator-based optical frequency combs emitted from high-quality-factor microresonators, also known as microcombs, have opened up new horizons to areas of optical frequency c…
Deterministic generation of a perfect soliton crystal with a saturable absorber
Ayata Nakashima, Shun Fujii, Riku Imamura +2
We numerically investigate the deterministic generation of a perfect soliton crystal (PSC) in an optical microresonator functionalized with a saturable absorber (SA). The SA allows…
Dissipative Kerr soliton microcombs for FEC-free optical communications over 100 channels
Shun Fujii, Shuya Tanaka, Tamiki Ohtsuka +11
The demand for high-speed and highly efficient optical communication techniques has been rapidly growing due to the ever-increasing volume of data traffic. As well as the digital c…
Ultrahigh-Q crystalline microresonator fabrication with only precision machining
Shun Fujii, Yuka Hayama, Kosuke Imamura +3
The development of ultrahigh quality factor (Q) microresonators has been driving such technologies as cavity quantum electrodynamics (QED), high-precision sensing, optomechanics, a…
Coupling of a whispering gallery mode to a silicon chip with photonic crystal
Yuyang Zhuang, Hajime Kumazaki, Shun Fujii +5
We demonstrate the efficient coupling (99.5%) of a silica whispering gallery mode microresonator directly with a silicon chip by using a silicon photonic crystal waveguide as a cou…