Results 31 to 40 of about 5,742 (195)

Robust transport of high-speed data in a topological valley Hall insulator. [PDF]

Nanophotonics
Abstract Photonic topological insulators provide robust transport of light, enabling interesting phenomena such as unidirectional light propagation and immunity to disorder. The discovery of how to effectively break time reversal symmetry was an important development in the field of photonic topological insulators. Knowledge on how to implement designs
Sohn BU, Chen GFR, Gao H, Ng DKT, Tan DTH.   +4 more
europepmc   +2 more sources

Frequency-multiplexed optical reservoir computing using a microcomb. [PDF]

Nanophotonics
Abstract Optical reservoir computing (ORC) promises fast, energy‐efficient temporal inference by harnessing the rich transient dynamics of photonic systems. Yet most ORC demonstrations still depend on fiber delay lines or camera‐based spatial multiplexing, which caps the clock rate at a few tens of MSa/s and complicates monolithic integration.
Cuevas J, Hu Y, Shi B, Liu J, Minoshima K, Kuse N.   +5 more
europepmc   +2 more sources

Design and Realisation of Miniaturisation of Substrate Integrated Waveguide (SIW)-Based Bandpass Filter (BPF) at L-band Frequency

, 2023
This paper studies a miniaturization of a substrate-integrated waveguide (SIW) bandpass filter (BPF) using only a square cavity. This cavity is to be loaded with a multi-sector circular patch, where each sectored patch is connected to the bottom surface of the cavity through a shorting blind via.
Bazergan, Abdullah, Mimsyad, Muhammad, Sirmayanti, Rauf, Yuliana   +3 more
openaire   +1 more source

A compact ultra wideband bandpass filter using arrow coupled lines with defected ground structure

Journal of Electrical Systems and Information Technology, 2014
A new ultra wideband bandpass filter (UWB-BPF) using arrow coupled lines and U-slot defected ground structures (U-DGS) is proposed. The input and output feeding lines are connected to the coupled lines placed on the conductor side of the substrate while ...
Deena A. Salem, Ashraf. S. Mohra, A. Sebak   +2 more
doaj   +1 more source

Highly Versatile Real‐Time Optical Noise Filtering Through Temporal Cloaking

Laser &Photonics Reviews, EarlyView.
Conventional bandpass filtering strategies may be insufficient for recovering optical waveforms under extremely noisy conditions. We demonstrate a temporal‐cloaking denoising strategy enabled by the temporal Talbot effect, which concentrates the coherent signal of interest into short temporal slots while broadband noise remains temporally spread.
Majid Goodarzi, Manuel P. Fernandez, Geunweon Lim, Connor Rowe, Xinyi Zhu, José Azaña   +5 more
wiley   +1 more source

Bandpass filter design with spurious frequency reduction capability [PDF]

, 2014
Passband microstrip coupled line filter are widely used in daily microwave engineering practice. There are various topologies to implement microstrip bandpass filters such as end-coupled, parallel coupled, hairpin, interdigital and combine filters.
Muda @ Ali, Rosnani
core  

Analysis of bit rate dependence up to 80 Gbit/s of a simple wavelength converter based on XPM in a SOA and a shifted filtering [PDF]

, 2008
This paper provides the analysis of wavelength converted pulses obtained with a simple semiconductor optical amplifier (SOA)-based wavelength conversion scheme, which exploits cross phase modulation (XPM) in an SOA in conjunction with shifted filtering.
Anandarajah, Prince M., Barry, Liam P., Bramerie, Laurent, Clarke, Aisling M., Girault, Gwenaelle, Guignard, Celine, Harvey, John D., Reid, Douglas A., Simon, Jean Claude   +8 more
core   +3 more sources

Laser Stabilized to a Fiber Interferometer With Close‐To‐Zero Temperature Sensitivity

Laser &Photonics Reviews, EarlyView.
A laser stabilized to a hollow‐core fibre interferometer is presented. The interferometer is designed to have near‐zero temperature phase‐sensitivity. Laser stabilized to this interferometer put in a non‐vacuum environment achieves ±550 kHz frequency variation over 100 h and an Allan deviation of 2 × 10−14τ, which is comparable to miniature ULE ...
Bo Shi, Irene Barbeito Edreira, Meng Ding, Zitong Feng, Win Indra, Francesco Poletti, Giuseppe Marra, Radan Slavík   +7 more
wiley   +1 more source

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu   +7 more
wiley   +1 more source

A miniaturized Microwave Bandpass Filter Based on Modified (Mg0.95Ca0.05)TiO3 Substrate

MATEC Web of Conferences, 2016
A microwave miniaturized bandpass filter using (Mg0.95Ca0.05)TiO3 (abbreviated as 95MCT hereafter) ceramic substrate is investigated in the present paper.
Hu Mingzhe, Ding Zhao, Zeng Zhiwei, Ji Denghui, Luo Chunya   +4 more
doaj   +1 more source