Results 31 to 40 of about 13,934 (209)

Test of mode-division multiplexing and demultiplexing in free-space with diffractive transformation optics [PDF]

open access: yes, 2017
open5openGIANLUCA RUFFATO, 1; FILIPPO ROMANATO, ; 1Department of Physics and Astronomy ‘G. Galilei’, University of Padova; 2Laboratory for Nanofabrication of Nanodevices, c.so Stati Uniti 4GIANLUCA RUFFATO, 1; Romanato, Filippo; Ruffato, Gianluca ...

core   +1 more source

All-fiber fused directional coupler for highly efficient spatial mode conversion [PDF]

open access: yes, 2014
We model and demonstrate a simple mode selective all-fiber coupler capable of exciting specific higher order modes in two- and few-mode fibres with high efficiency and purity. The coupler is based on inter-modally phase-matching the propagation constants
Brambilla, Gilberto   +4 more
core   +1 more source

MDM-TDM PON Utilizing Self-Coherent Detection-Based OLT and RSOA-Based ONU for High Power Budget

open access: yesIEEE Photonics Journal, 2016
A cost-effective mode-division-multiplexing and time-division-multiplexing passive optical network (MDM-TDM PON) utilizing a self-coherent detection for upstream signal at optical line terminal (OLT) and a high-gain reflective semiconductor optical ...
Yuanxiang Chen   +11 more
doaj   +1 more source

Supersymmetric mode converters [PDF]

open access: yes, 2014
Originally developed in the context of quantum field theory, the concept of supersymmetry (SUSY) can be used to systematically design a new class of optical structures.
Christodoulides, Demetrios N.   +6 more
core   +4 more sources

Design and optimization of photonic devices and optical fibers for space-division multiplexing [PDF]

open access: yes, 2018
Although, the technological breakthroughs such as WDM had allowed the capacity per fiber to be increased around tenfold every four years in the past decade, however, the capacity of the optical communication systems based on these transmission ...
Abrate, Li, Okamoto, Saitoh, Watanabe
core   +1 more source

Simultaneous Wavelength- and Mode-Division (De)multiplexing for High-Capacity On-Chip Data Transmission Link

open access: yesIEEE Photonics Journal, 2016
We present designs of wavelength-division-multiplexing (WDM) and mode-division-multiplexing (MDM) optical links using mode de/multiplexers (DE/MUXs) based on multimode interference (MMI) couplers with a tilt joint as a phase shifter.
Liangshun Han   +5 more
doaj   +1 more source

Direct-access mode-division multiplexing switch for scalable on-chip multi-mode networks

open access: yesNanophotonics, 2021
By leveraging mode-division multiplexing (MDM), capacity of on-chip photonic interconnects can be scaled up to an unprecedented level. The demand for dynamic control of mode carriers has led to the development of mode-division multiplexing switches (MDMS)
Xu Hongnan   +3 more
doaj   +1 more source

Light served with a twist [PDF]

open access: yes, 2017
The insight of a classic study on optical orbital angular momentum, published a quarter-century ago, continues to resonate in new approaches to structuring, controlling and leveraging light ...
Franke-Arnold, Sonja, Radwell, Neal
core   +1 more source

Direct fiber vector eigenmode multiplexing transmission seeded by integrated optical vortex emitters [PDF]

open access: yes, 2017
Spatial modes have received substantial attention over the last decades and are used in optical communication applications. In fiber-optic communications, the employed linearly polarized modes and phase vortex modes carrying orbital angular momentum can ...
Cai, Xin-Lun   +11 more
core   +1 more source

Towards integrated mode-division demultiplexing spectrometer by deep learning

open access: yesOpto-Electronic Science, 2022
Miniaturized spectrometers have been widely researched in recent years, but few studies are conducted with on-chip multimode schemes for mode-division multiplexing (MDM) systems.
Ze-huan Zheng   +4 more
doaj   +1 more source

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