Xinhai Zou

TL;DR: In this paper, a high-speed optical phase modulator based on graphene-silicon waveguide (GSW) is presented, where two graphene flakes, sandwiched by insulating dielectric spacers, are embedded in a silicon waveguide to enhance the interaction between the graphene and light.

TL;DR: The proposed self-calibrating method enables calibration-free and accurate frequency response measurement of electro-optic phase modulators by using high-resolution electrical spectrum analysis.

TL;DR: The stable multipulse emission from an erbium-doped mode-locked fiber laser in dissipative soliton resonance (DSR) regime is numerically and experimentally investigated and it shows that in the multipulse operation of DSR, all pulses have identical characteristics.

TL;DR: A calibration-free electrical method is demonstrated for measuring the frequency response of high-speed Mach-Zehnder modulators (MZMs) based on low-frequency detection that eliminates the need for correcting the responsivity fluctuation in the photodetector through setting a specific frequency relationship between the two-tone and bias modulation.

TL;DR: In this paper, a four-in-one electrical method is proposed based on heterodyne spectrum mapping for self-calibrated frequency response measurements of high-speed semiconductor laser diodes, Mach-Zehnder modulators, phase modulators and photodetectors with a shared self-heterodyne interferometer.