Programmable schemes on temporal waveform processing of optical pulse trains

Q Xie, H Zhang, C Shu - Journal of Lightwave Technology, 2019 - ieeexplore.ieee.org
The programmable envelope shaping technique of high-repetition-rate optical pulse
sequences with low-speed modulation is summarized in this letter. First, we reviewed our …

Comb spacing multiplication enabled widely spaced flexible frequency comb generation

B Zheng, Q Xie, C Shu - Journal of Lightwave Technology, 2018 - ieeexplore.ieee.org
We experimentally demonstrate a new approach for the generation of widely spaced flexible
optical frequency combs in a highly nonlinear fiber (HNLF) using relatively low-speed …

Binary programmable optical pulse repetition-rate multiplication based on real-time Fourier transform

Z Li, Q Xie, Y Zhang, H Zhang… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
We propose and demonstrate a novel scheme to flexibly generate optical pulse trains with
programmable repetition rates using newly designed binary modulation coefficients. The …

Experimental demonstration of passive microwave pulse amplification via temporal Talbot effect

VM Pepino, AF da Mota, BHV Borges - Scientific Reports, 2023 - nature.com
The temporal Talbot effect is a passive phenomenon that occurs when a periodic signal
propagates through a dispersive medium with a quadratic phase response that modulates …

Wide-spaced optical frequency comb with programmable spacing

Q Xie, B Zheng, C Shu - IEEE Photonics Technology Letters, 2018 - ieeexplore.ieee.org
We introduce a novel approach for flexible generation of wide-spaced optical frequency
combs. The comb is obtained from the cross phase modulation of a continuous-wave laser …

Reconfigurable envelope generation of optical pulse train based on discrete Fourier transform

Q Xie, C Shu - IEEE Photonics Technology Letters, 2017 - ieeexplore.ieee.org
We experimentally demonstrate a fiber-based reconfigurable system for programming the
envelope of high-speed optical pulse train by using fractional-rate multilevel amplitude …

Perfect Talbot self-imaging effect of aperiodic gratings

Y Yao, X Sun, Y Ma, T Wang, G Wu, H Chen, B Gao… - Optics …, 2023 - opg.optica.org
We propose and investigate a class of aperiodic grating structure which can achieve perfect
Talbot effect under certain conditions. The aperiodic grating structure is obtained by the …

A dispersion-balanced discrete Fourier transform of repetitive pulse sequences using temporal Talbot effect

CR Fernández-Pousa - Optics Communications, 2017 - Elsevier
We propose a processor based on the concatenation of two fractional temporal Talbot
dispersive lines with balanced dispersion to perform the DFT of a repetitive electrical …

Real-time discrete Fourier transformer with complex-valued outputs based on the inverse temporal Talbot effect

H Chi, S Hu, Y Zhai, B Yang, Z Cao, J Ou, S Yang - Optics Express, 2020 - opg.optica.org
Discrete Fourier transform (DFT) plays an important role in digital signal processing. In this
paper, we present a novel optical real-time discrete Fourier transformer with complex-valued …

On mode-spacing division of a frequency comb by temporal phase modulation

XZ Li, J Azaña - IEEE Journal of Selected Topics in Quantum …, 2018 - ieeexplore.ieee.org
Mode-spacing division of a phase-coherent optical frequency comb is numerically
investigated using temporal phase modulation of a periodic optical pulse train. Different …