61 citations · 79 across the 4 of their papers we have counts for
4 papers
Exceptional point proximity-driven mode-locking in coupled microresonators
Riku Imamura, Shun Fujii, Ayata Nakashima +1
We show theoretically and numerically that mode-locking is feasible with a coupled-cavity system with gain and loss, notably, without any natural saturable absorber. We highlight t…
A two-color dual-comb system for time-resolved measurements of ultrafast magnetization dynamics using triggerless asynchronous optical sampling
Daichi Nishikawa, Kazuki Maezawa, Shun Fujii +2
We report on an Er-doped fiber (EDF)-laser-based dual-comb system that allows us to perform triggerless asynchronous optical sampling (ASOPS) pump-probe measurements of ultrafast d…
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…