Results 41 to 50 of about 20,155 (297)

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

A versatile source of polarisation entangled photons for quantum network applications [PDF]

open access: yes, 2012
We report a versatile and practical approach for generating high-quality polarization entanglement in a fully guided-wave fashion. Our setup relies on a high-brilliance type-0 waveguide generator producing paired photon at a telecom wavelength associated
Amandine Issautier   +11 more
core   +3 more sources

Toward the Shannon Limit of Spectral Efficiency

open access: yesIEEE Photonics Journal, 2011
Progress in high-capacity optical communication systems in 2010 is reviewed, with spectral efficiency (SE) as the main figure of merit. Advanced modulation formats, such as quadrature amplitude modulation (QAM) and orthogonal frequency-division ...
L.-S. Yan, X. Liu, W. Shieh
doaj   +1 more source

Coherent Optical DFT-Spread OFDM

open access: yes, 2011
We consider application of the discrete Fourier transform-spread orthogonal frequency-division multiplexing (DFT-spread OFDM) technique to high-speed fiber optic communications.
Wang, Fanggang, Wang, Xiaodong
core   +2 more sources

Design and Bolometer Characterization of the SPT-3G First-year Focal Plane [PDF]

open access: yes, 2018
During the austral summer of 2016-17, the third-generation camera, SPT-3G, was installed on the South Pole Telescope, increasing the detector count in the focal plane by an order of magnitude relative to the previous generation.
Ade, P. A. R.   +75 more
core   +3 more sources

Polarization-division multiplexing based on the nonlinear Fourier transform

open access: yesOptics Express, 2017
Polarization-division multiplexed (PDM) transmission based on the nonlinear Fourier transform (NFT) is proposed for optical fiber communication. The NFT algorithms are generalized from the scalar nonlinear Schr dinger equation for one polarization to the Manakov system for two polarizations.
Goossens, Jan-Willem   +3 more
openaire   +3 more sources

Phase-coherent lightwave communications with frequency combs [PDF]

open access: yes, 2019
Fiber-optical networks are a crucial telecommunication infrastructure in society. Wavelength division multiplexing allows for transmitting parallel data streams over the fiber bandwidth, and coherent detection enables the use of sophisticated modulation ...
Andrekson, Peter A.   +7 more
core   +2 more sources

Polarization-tracking-free Satellite Communications System Using Adaptive Polarization Division Multiplexing [PDF]

open access: bronzeNTT Technical Review, 2011
Yoshinori Suzuki   +4 more
openalex   +2 more sources

Silicon-Based-Chip Multiplexing Technologies and Devices

open access: yesDianxin kexue, 2015
As the demands of the data communications increase quickly for the applications of cloud-computing as well as data centers,optical interconnects have been very attractive because of the unique advantages on the aspects of low power consumption,high speed
Daoxin Dai, Jian Wang, Sitao Chen
doaj   +2 more sources

Optical Transport Architecture for the Fronthaul Segment in a 5G NR Network based on Polarization and Wavelength Multiplexing

open access: yesRevista Facultad de Ingeniería, 2023
This paper presents the design of an optical transport architecture for the fronthaul segment in a 5G New Radio (NR) network based on both polarization and wavelength multiplexing using Polarization Splitters (PS) and an Arrayed Waveguide Grating (AWG),
Ingrid-Katherine Balero-Lozada   +2 more
doaj   +1 more source

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