All-fibre phase filters with 1-GHz resolution for high-speed passive optical logic processing

S Kaushal, A Aadhi, A Roberge, R Morandotti… - Nature …, 2023‏ - nature.com
Photonic-based implementation of advanced computing tasks is a potential alternative to
mitigate the bandwidth limitations of electronics. Despite the inherent advantage of a large …

Frequency-domain ultrafast passive logic: NOT and XNOR gates

R Maram, J Howe, D Kong, FD Ros, P Guan… - Nature …, 2020‏ - nature.com
Electronic Boolean logic gates, the foundation of current computation and digital information
processing, are reaching final limits in processing power. The primary obstacle is energy …

Optical all-pass filter realized by self-compensation of loss

L Xu, Y Yu, X Liu, X Shu, X Zhang - ACS Photonics, 2021‏ - ACS Publications
Filters are key devices in optical systems and are usually applied to signal suppression or
selection based on their amplitude frequency responses. Different from amplitude filtering …

Programmable fiber-optics pulse repetition-rate multiplier

R Maram, L Romero Cortés, J Azaña - Journal of Lightwave …, 2016‏ - opg.optica.org
We develop a strikingly simple fiber-optics pulse repetition-rate multiplication approach,
based on dispersion-induced temporal self-imaging (TSI) effect, in which the rate …

Ultrawide photonic bandgap and ultrastrong photonic localization produced by series of periodic networks

X Xu, X Yang, D Deng, H Liu, Z Wei - Annalen der Physik, 2021‏ - Wiley Online Library
A series of periodic networks is designed, in which all of the unit cells construct a series of
fractal triangles, and their extraordinary optical characteristics for producing ultrawide …

Observation of spectral self-imaging by nonlinear parabolic cross-phase modulation

L Lei, J Huh, LR Cortés, R Maram, B Wetzel… - Optics letters, 2015‏ - opg.optica.org
We report an experimental demonstration of spectral self-imaging on a periodic frequency
comb induced by a nonlinear all-optical process, ie, parabolic cross-phase modulation in a …

Design of ultra-compact on-chip discrete phase filters for broadband dispersion management

S Kaushal, J Azaña - Journal of Lightwave Technology, 2021‏ - ieeexplore.ieee.org
This paper provides an in-depth theoretical and numerical analysis of a group-velocity
dispersion (GVD) management scheme for broadband waveforms using ultra-compact on …

[HTML][HTML] Characteristics of optical system generating ultra-wide photonic band gap and its potential practicability

Y Zhi, W Liu, X Yang, Z Wei, S Du, H Meng, H Liu… - Results in Physics, 2023‏ - Elsevier
In this study, we design a one-dimensional periodic ring multi-connected optical waveguide
network to solve the problem of obtaining ultra-wide photonic band gaps that are too …

640 Gbit/s return-to-zero to non-return-to-zero format conversion based on optical linear spectral phase filtering

R Maram, D Kong, M Galili, LK Oxenløwe, J Azaña - Optics Letters, 2015‏ - opg.optica.org
We propose a novel approach for all-optical return-to-zero (RZ) to non-return-to-zero (NRZ)
telecommunication data format conversion based on linear spectral phase manipulation of …

[کتاب][B] Fabrication of fiber Bragg gratings using femtosecond laser direct-writing techniques

A Roberge - 2022‏ - search.proquest.com
Abstract Fiber Bragg gratings (FBGs) are key components in many fiber optics systems. The
main topic of this thesis is on the fabrication of FBGs using femtosecond laser direct-writing …