Results 101 to 110 of about 140,939 (365)

Fiber optics wavelength division multiplexing(components) [PDF]

The long term objectives are to develop optical multiplexers/demultiplexers, different wavelength and modulation stable semiconductor lasers and high data rate transceivers, as well as to test and evaluate fiber optic networks applicable to the Space ...
Hendricks, Herbert D.
core   +1 more source

The Italian research project ROAD-NGN ‘Optical frequency/wavelength division multiple access techniques for next generation networks' [PDF]

, 2013
The paper describes the activities of the Italian national research project ROAD-NGN ‘Optical frequency/wavelength division multiple access techniques for next generation networks’; the project aims to investigate and experiment new technological ...
Boffi, P., Ciaramella, E., Cincotti, G., Gaudino, Roberto, Maier, G., Matera, F., Mecozzi, A., Santagiustina, M., Valcarenghi, L., Vatalaro, F.   +9 more
core  

An Ultra‐Sub‐Wavelength Microwave Polarization Switching Antenna for Covert Communication Implemented With Directed Surface Acoustic Waves in an Artificial Multiferroic Magnonic Crystal

Advanced Materials Technologies, EarlyView.
A surface acoustic wave (SAW) launched in a two‐dimensional periodic array of magnetostrctive nanomagnets on a piezoelectric substrate excites spin waves in the nanomagnets which radiate electromagnetic waves in space. The polarization of the emitted beam in particular directions and at particular frequencies can be switched between horizontal and ...
Raisa Fabiha, Erdem Topsakal, Supriyo Bandyopadhyay   +2 more
wiley   +1 more source

Silicon nitride three-mode division multiplexing and wavelength-division multiplexing using asymmetrical directional couplers and microring resonators.

Optics Express, 2014
We demonstrate silicon nitride mode-division multiplexing (MDM) and wavelength-division multiplexing (WDM) using asymmetrical directional couplers and microring resonators. Our experiments reveal three-mode multiplexing and demultiplexing. We demonstrate
Yuede Yang, Yu Li, Yongzhen Huang, A. Poon   +3 more
semanticscholar   +1 more source

Demonstration of 3D‐Printed Optical Antennas for High‐Speed Optical Wireless Communication Using Market‐Ready Materials

Advanced Materials Technologies, EarlyView.
The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti, Marco Meucci, Paolo Foggi, Caterina Credi, Satoshi Iketani, Cristiana Lofrumento, Jacopo Catani   +6 more
wiley   +1 more source

Wireless Capsule Device for Targeted and Safe Tissue Biopsy with Integrated Sensing

Advanced Materials Technologies, EarlyView.
This work presents a capsule device featuring a novel magnetically controlled biopsy mechanism for enhanced safety. The biopsy unit integrates a foldable linkage with dual magnets, creating a magnetic attraction–based safeguard, preventing unintended activation during locomotion. A flexible sensor provides real‐time penetration displacement sensing for
Kiyoung Kim, Jacob Katona, Jiale Chu, Boyang Xiao, Rishi Naik, Xiaoguang Dong   +5 more
wiley   +1 more source

Towards 100 channel dense wavelength division multiplexing with 100GHz spacing on silicon.

Optics Express, 2014
A 1 by 4 wavelength division multiplexer with 0.5nm bandwidth and no free spectral range limitation is demonstrated on silicon. The device utilizes wide bandwidth filters cascaded with ring resonators in order to select specific ring resonator modes and ...
D. Tan, A. Grieco, Y. Fainman
semanticscholar   +1 more source

High‐Transmission Mid‐Infrared Bandpass Filters using Hybrid Metal‐Dielectric Metasurfaces for CO2 Sensing

Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This article presents a hybrid metal‐dielectric metasurface in transmission mode for mid‐infrared (MIR) spectroscopy. Composed of germanium on aluminium cylinders atop a calcium fluoride substrate, the metasurface achieves 80% transmission efficiency at λ = 2.6 µm with a narrow full‐width‐half‐maximum of 0.4 µm.
Amr Soliman, C Williams, Richard Hopper, Florin Udrea, Haider Butt, Timothy D. Wilkinson   +5 more
wiley   +1 more source

Illuminating Advances in Materials: Optical Physical Unclonable Functions for Security Applications

Advanced Optical Materials, EarlyView.
This review highlights Optical Physical Unclonable Functions (OPUFs) as secure, light‐driven authentication tools. It surveys material platforms including optical fibers, low‐dimensional materials, luminophores, plasmonic nanoparticles and rare earth OPUFs systems.
Syeda Ramsha Ali, Stephen V. Kershaw, Mian Muhammad Faisal, Basel Halak, Nema M. Abdelazim   +4 more
wiley   +1 more source

On-Chip Multichannel Dispersion Compensation and Wavelength Division MUX/DeMUX Using Chirped-Multimode-Grating-Assisted Counter-Directional Coupler

Photonics
On-chip optical dispersion compensation and wavelength division multiplexing/demultiplexing (WDM) are highly demanded functions for optical communications.
Zhixiao Lv, Jiangbing Du, Zuyuan He
doaj   +1 more source