5 papers
Transmission of signals in the 300 GHz band with a bit-error rate below using a soliton comb
Mantaro Imamura, Ryo Sugano, Ayaka Yomoda +5
To address the increasing demand for ultra-high-capacity wireless communication, terahertz (THz) frequencies near 300 GHz are attracting attention as a new spectral frontier. This…
Record-high-Q AMTIR-1 microresonators for mid- to long-wave infrared nonlinear photonics
Liu Yang, Ryo Sugano, Ryomei Takabayashi +6
AMTIR-1 chalcogenide glass has shown its potential for use in thermal imaging systems owing to its low refractive index, thermal resistance and high transparency across the infrare…
Architecture for coherent dual-comb spectroscopy and low-noise photonic microwave generation using mechanically actuated soliton microcombs
Tatsuki Murakami, Koshiro Wada, Soma Kogure +8
Dissipative Kerr soliton microcombs have inspired various intriguing applications such as spectroscopy, ranging, telecommunication, and high purity microwave generation. Mechanical…
Octave-wide phase-matched four-wave mixing in dispersion engineered crystalline microresonators
Shun Fujii, Shuya Tanaka, Mika Fuchida +5
In this Letter, we report phase-matched four-wave mixing separated by over one-octave in a dispersion engineered crystalline microresonator. Experimental and numerical results pres…
Scalable fabrication of erbium-doped high-Q silica microtoroid resonators via sol-gel coating
Riku Imamura, Shun Fujii, Keigo Nagashima +1
This study explores sol-gel methods for fabricating erbium-doped silica microtoroid resonators, addressing the limitations of conventional doping techniques and enhancing device sc…