Results 61 to 70 of about 3,991 (213)

Design of a new 2-channel demultiplexer based on Photonic Crystal Fiber

open access: yesResults in Optics, 2023
As miniaturization becomes a critical need in many integrated applications, various researchers have primarily focused on creating optical systems and components based on photonic crystal fiber during the past few decades.
Assia Ahlem HARRAT   +2 more
doaj   +1 more source

Experimental wavelength division multiplexed photon pair distribution

open access: yes, 2012
We have experimentally implemented the distribution of photon pairs produced by spontaneous parametric down conversion through telecom dense wavelength division multiplexing filters.
Agha, Imad   +4 more
core   +1 more source

Toward Plasmonic Neuronal Architectures at the Nanometer Scale

open access: yesNanophotonics, Volume 15, Issue 7, 13 April 2026.
The concept of a plasmonic neural cell is realized through the integration of multiplexed optical inputs, static weighting, and nonlinear readout. The inputs are encoded in the orbital angular momentum of light and coupled into dielectric‐loaded plasmonic waveguides via nanostructured slits.
Christopher G. O. Weiß   +6 more
wiley   +1 more source

A novel directional coupler utilizing a left-handed material

open access: yes, 2005
A novel directional coupler with a left-handed material (LHM) layer between two single-mode waveguides of usual material is introduced. The coupling system is analyzed with the supermode theory.
He, Sailing   +2 more
core   +1 more source

Engineering the optical properties of silicon using sub-wavelength structures [PDF]

open access: yes, 2013
In most integrated optics platforms, including silicon-on-insulator, only minor modifications in refractive index are possible. The geometry of the waveguiding structure is thus the only degree of freedom for the design of devices.
Cheben, Pavel   +11 more
core   +2 more sources

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

open access: yesAdvanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin   +7 more
wiley   +1 more source

A Neuro Metasurface Mode-Router for Fiber Mode Demultiplexing and Communications

open access: yesEngineering
Advancements in mode-division multiplexing (MDM) techniques, aimed at surpassing the Shannon limit and augmenting transmission capacity, have garnered significant attention in optical fiber communication, propelling the demand for high-quality ...
Yu Zhao   +12 more
doaj   +1 more source

Integrated Hybrid Mode‐Wavelength Demultiplexers Based on Cascaded Digital Metamaterials

open access: yesAdvanced Photonics Research
High‐dimensional multiplexing technology is of importance in the on‐chip photonic interconnections and challenging to design within ultracompact footprint.
Shuhe Zhang   +5 more
doaj   +1 more source

All-Fiber Low-Modal-Crosstalk Demultiplexers for DSP-Free IM/DD LP-Mode MDM Transmission

open access: yesPhotonics
Weakly coupled mode-division multiplexing (MDM) techniques supporting intensity modulation and direct detection (IM/DD) transmission are promising methods of enhancing the capacity of short-reach scenarios in which low-modal-crosstalk-mode demultiplexers
Yuyang Gao   +4 more
doaj   +1 more source

Integrated photonic circuit in silicon on insulator for fourier domain optical coherence tomography [PDF]

open access: yes, 2010
Optical coherence tomography (OCT) is a medical imaging technology capable of producing high-resolution, cross-sectional images through inhomogeneous samples, such as biological tissue. It has been widely adopted in clinical ophthalmology and a number of
Baets, Roel   +3 more
core   +1 more source

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