Results 61 to 70 of about 491,185 (233)
Mode generation in elliptical core few mode fiber [PDF]
AIP Conference Proceedings, 2020 In this paper, mode generation based on an elliptical core few mode fiber (EC-FMF) is devised through an inverse function, designed using split step beam propagation method (BPM). The undesired modes from an EC-FMF are eliminated through an appended waveguide computed from the inverse phase of undesired modes.
Angela Amphawan, Tendai Masunda
openaire +1 more source
PhotonicsThe traditional single-mode fiber (SMF) optical time domain reflectometer (OTDR) may not be able to accurately detect and locate fault events in the dead zone of few-mode fiber (FMF) links.
Feng Liu, Tianle Gu, Zicheng Huang
doaj +1 more source
Nanophotonics, 2020 The burgeoning advances of spatial mode conversion in few-mode fibers emerge as the investigative hotspot in novel structured light manipulation, in that, high-order modes possess a novel fundamental signature of various intensity profiles and unique ...
Lu Jiafeng +8 more
doaj +1 more source
Gain Equalization for Few-Mode Erbium-Doped Fiber Amplifiers via Strong Mode Coupling
Applied Sciences, 2022 Few-mode erbium-doped fiber amplifiers (FM-EDFAs) are one of the most important optical subsystems for successful space division multiplexed transmission systems.
Yaping Liu +4 more
doaj +1 more source
Optics ExpressWe report a systematic investigation on the mode-resolved nonlinear absorption characteristics of the few-mode fiber-multimode fiber-few-mode fiber (FMF) structure. Firstly, the transmission formulas of the FMF structure are derived, demonstrating that the transmission is mode-dependent.
Jia-Wen Wu +6 more
openaire +1 more source
Recent progress in SDM amplifiers
, 2017 Space division multiplexing (SDM) utilizing few-mode fibers or multicore fibers supporting multiple spatial channels, is currently under intense investigation as an efficient approach to overcome the current capacity limit of high-speed long-haul ...
Alam, Shaif-ul +4 more
core +1 more source
Distributed Transverse Stress Sensor Based on Mode Coupling in Weakly-Coupled FMF
IEEE Photonics Journal, 2022 Distributed optical fiber sensors (DOFSs) have faced the challenge of measuring transverse stress along the fiber and the current main approach has been based on polarization coupling effect in polarization-maintaining fibers (PMFs), which has short ...
Junchi Jia +10 more
doaj +1 more source
Few-Mode Elliptical-Core Fiber Data Transmission
IEEE Photonics Technology Letters, 2012 Spatial mode-division-multiplexing is seen as paramount to overcoming the bandwidth limitations of single-mode fiber. In this letter, spatial-multiplexing of polarization-maintaining, elliptical-core fiber is proposed using asymmetric Y-junctions. Asymmetric Y-junctions also allow for straightforward wavelength- and polarization-multiplexing. Numerical
Riesen, Nicholas +2 more
openaire +3 more sources
Fast and accurate modelling of nonlinear pulse propagation in graded-index multimode fibers [PDF]
, 2017 We develop a model for the description of nonlinear pulse propagation in multimode optical fibers with a parabolic refractive index profile. It consists in a 1+1D generalized nonlinear Schr\"odinger equation with a periodic nonlinear coefficient, which ...
Arabi, Carlos Mas +3 more
core +4 more sources
Mode-Enhanced Surface Plasmon Resonance in Few-Mode Fibers via Dual-Groove Architecture
PhotonicsWe propose a dual-groove few-mode fiber surface plasmon resonance sensor that exploits the LP11 mode for enhanced plasmonic sensing. The device incorporates two physically separated grooves with distinct metallic coatings, enabling dual-channel operation
Qin Wu +4 more
doaj +1 more source