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Optical spectral asymmetry enables differential refractive-index sensing under near-perfect common-mode suppression in a single-cavity dual-comb fiber laser
Masayuki Higaki, Yoshiaki Nakajima, Shuji Taue +3
Single-cavity dual-comb fiber lasers offer near-perfect common-mode suppression, but such suppression is generally expected to eliminate differential sensing signals. Here we show…
Tunable low-phase-noise terahertz synthesis using a fiber-interferometer-referenced optical frequency comb and an EDFA-integrated Vernier cavity
Masayuki Higaki, Yoshiaki Nakajima, Yu Tokizane +4
demonstrate a frequency-tunable, low-phase-noise terahertz (THz) synthesizer based on a fiber-interferometer-referenced optical frequency comb (OFC), an erbium-doped fiber amplifie…
Dual terahertz frequency combs for photonic RF readout of refractive index sensing with frequency multiplication and active-dummy temperature compensation
Masayuki Higaki, Yoshiaki Nakajima, Shuji Taue +4
We present a unified refractive index (RI) sensing platform that integrates THz-comb-based frequency multiplication with dual-comb active-dummy temperature compensation. In convent…
Reduction of temperature drift in refractive-index-sensing optical frequency comb by active-dummy compensation of dual-comb configuration
Shogo Miyamura, Masayuki Higaki, Shuji Taue +5
Refractive-index (RI) sensing plays a pivotal role in various domains, encompassing applications like glucose sensing, biosensing, and gas detection. Despite the advantages of opti…