Results 41 to 50 of about 221,572 (291)
Dispersive Fourier transform using few-mode fibers for real-time and high-speed spectroscopy [PDF]
, 2012 Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIIDispersive Fourier Transform (DFT) is a powerful technique for real-time and high-speed spectroscopy.
Qiu, Y, Tsia, KK, Wong, KKY, Zhang, C
core +1 more source
Phase-Sensitive Mode Conversion and Equalization in a Few Mode Fiber Through Parametric Interactions [PDF]
, 2017 The parametric interaction in few mode fibers is theoretically and numerically studied in the particular case in which the signal and the idler waves are frequency degenerate but mode nondegenerate.
Palmieri, Luca +3 more
core +1 more source
Measuring Distributed Mode Scattering in Long, Few-Moded Fibers [PDF]
Optical Fiber Communication Conference, 2012 We present measurements of higher-order modes in lengths of few-moded fibers up to 0.5 km long using Spatially and Spectrally resolved (S2) imaging. Both discrete scattering events and mode-mixing due to distributed scattering are measured.
Jesperson, K. +5 more
openaire +2 more sources
IEEE Photonics Journal, 2018 Linearly polarized (LP) modes in few-mode fibers are not true eigenmodes but approximated modes constituting of linear combinations of true eigenmodes.
Seiya Miura +2 more
doaj +1 more source
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 and Wavelength-Switchable Pulsed Fiber Laser With Few-Mode Fiber Grating [PDF]
IEEE Photonics Technology Letters, 2019 We propose and demonstrate a mode and wavelength-switchable pulsed fiber laser using two-mode fiber Bragg grating (TM-FBG) as both transverse mode converter and wavelength selector. The mode-locking mechanism is based on saturable absorption of semiconductor saturable absorption mirror (SESAM).
Yu Cai +4 more
openaire +1 more source
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
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +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
IEEE Photonics Journal, 2023 The mode field distribution at the distal end of a multimode fiber can vary randomly when environmental perturbations introduce changes in the relative phases of different eigenmodes and variations in coupling among modes.
Dan Yi, Xuetong Zhou, Hon Ki Tsang
doaj +1 more source