Results 61 to 70 of about 20,155 (297)

Free Space Optical Polarization De-multiplexing and Multiplexing by means of Conical Refraction [PDF]

open access: yes, 2012
Polarization de-multiplexing and multiplexing by means of conical refraction is proposed to increase the channel capacity for free space optical communication applications.
Kalkandjiev, Todor K.   +3 more
core   +3 more sources

Polarization division multiplexing for optical data communications

open access: yesOptical Interconnects XVIII, 2018
Multiple parallel channels are ubiquitous in optical communications, with spatial division multiplexing (separate physical paths) and wavelength division multiplexing (separate optical wavelengths) being the most common forms. Here, we investigate the viability of polarization division multiplexing, the separation of distinct parallel optical ...
Viktor Gruev   +3 more
openaire   +2 more sources

Fluorescent Polymeric Nanofibers as Ratiometric Multiplexed Skin Sensors of pH and Oxygen

open access: yesAdvanced Healthcare Materials, EarlyView.
Fluorescent polymeric nanofibers and nanorods are produced as ratiometric sensors of two important physiological parameters: pH and oxygen. They operate by dual Forster resonance energy transfer from large number of energy donor dyes to limited number of two distinct energy acceptors, enabling simultaneous sensing of pH and oxygen.
Rémi Pelletier   +2 more
wiley   +1 more source

Сompensator of polarization mode dispersion based on spiral-wound single-mode fiber [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2013
A polarization mode dispersion (PMD) compensator for single-mode optical fiber has been designed. Its operation principle is based on the use of artificial difference of phase velocities of the basic ordinary and extraordinary waves in spiral-wound fiber,
Bagachuk D. G.
doaj   +2 more sources

Nonlinear Impairment Compensation for Polarization-Division Multiplexed WDM Transmission Using Digital Backward Propagation

open access: yesIEEE Photonics Journal, 2009
It is shown experimentally that impairments induced by dispersion and Kerr nonlinearity can be compensated digitally for polarization-division multiplexed wavelength division multiplexing (WDM) transmission.
F. Yaman, Guifang Li
doaj   +1 more source

Biomimetic Fibrinogen Nanofiber Scaffolds for Vascular Hematopoietic Stem Cell Niche Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents an advanced in vitro model of the vascular hematopoietic stem cell niche using self‐assembled fibrinogen nanofibers, mimicking the basement membrane in bone marrow (BM) sinusoids. The model supports the coculture of microvascular endothelial cells, stromal cells, and hematopoietic stem and progenitor cells, providing insights into ...
Sophia Lena Meermeyer   +4 more
wiley   +1 more source

High Dimensional Modulation and MIMO Techniques for Access Networks [PDF]

open access: yes, 2012
Exploration of advanced modulation formats and multiplexing techniques for next generation optical access networks are of interest as promising solutions for delivering multiple services to end-users.
Daud, M. E.   +6 more
core   +3 more sources

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

open access: yesAdvanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo   +4 more
wiley   +1 more source

State-of-the-Art and Perspectives on Silicon Waveguide Crossings: A Review

open access: yesMicromachines, 2020
In the past few decades, silicon photonics has witnessed a ramp-up of investment in both research and industry. As a basic building block, silicon waveguide crossing is inevitable for dense silicon photonic integrated circuits and efficient crossing ...
Sailong Wu   +4 more
doaj   +1 more source

Volume diffraction gratings for optical telecommunications applications: design study for a spectral equalizer [PDF]

open access: yes, 2004
The main characteristics required for a diffraction grating used for demultiplexing functions in spectral equalizing systems are investigated, both theoretically and experimentally.
Chevallier, Raymond   +5 more
core   +1 more source

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