Results 21 to 30 of about 220,476 (294)

Design of Few-Mode Fibers for Mode-Division Multiplexing Transmission

open access: yesIEEE Photonics Journal, 2013
We investigate the fiber parameters that meet the design conditions for low bending loss and an effectively few-mode operation on few-mode fibers with a step-index profile and a W-shaped refractive index profile for mode-division multiplexing ...
Motoki Kasahara   +7 more
doaj   +1 more source

Optical time-stretch microscopy using few-mode fibers [PDF]

open access: yes, 2012
(Oral) Session MB: Microscopy and Imaging: MB3We demonstrate a cost-effective and efficient approach for realizing ultrafast time-stretch microscopy in 1μm using the standard telecommunication single-mode fibers (e.g.
Qiu, Y, Tsia, KKM, Wong, KKY, Xu, J
core   +1 more source

Contactless vital signs monitoring based on few-mode and multi-core fibers

open access: yesOpto-Electronic Advances, 2020
Few-mode and multi-core fibers are proposed and demonstrated for contactless vital signs monitoring in this paper. In-line optical fiber interferometers using few-mode and multi-core fibers are designed and offset splicing is utilized for mode excitation.
Tan Fengze   +4 more
doaj   +1 more source

Few-Mode Fibers With Uniform Differential Mode Group Delay for Microwave Photonic Signal Processing

open access: yesIEEE Access, 2020
We present a novel design of few-mode fiber (FMF) with a uniform differential mode group delay (U-DMGD) among propagating modes and apply the FMF to a single-fiber delay line module for implementing microwave photonic finite impulse response (FIR ...
Jian Zhao   +5 more
doaj   +1 more source

Recent Progress in Distributed Brillouin Sensors Based on Few-Mode Optical Fibers

open access: yesSensors, 2021
Brillouin scattering is a dominant inelastic scattering observed in optical fibers, where the energy and momentum transfer between photons and acoustic phonons takes place.
Yong Hyun Kim, Kwang Yong Song
doaj   +1 more source

Demonstration of Mode-Evolutional Multiplexer for Few-Mode Fibers Using Stacked Polymer Waveguide

open access: yesIEEE Photonics Journal, 2015
Mode-evolutional multi/demultiplexer for few-mode fibers was demonstrated using stacked polymer waveguides. Owing to the stacked structure, TE00, TE10, and TE01 modes, which correspond to LP01, LPeven11 , and LPodd 11 modes, respectively, were ...
T. Watanabe, Y. Kokubun
doaj   +1 more source

Singularities splitting phenomenon for the superposition of hybrid orders structured lights and the corresponding interference discrimination method

open access: yesNanophotonics, 2022
It is the basic characteristic of pure vortex light that there is a phase singularity at the origin. Such a singularity may be multiple degenerate, which determines the order of vortex light. Singularities splitting phenomenon means that singularities no
Mao Baiwei   +7 more
doaj   +1 more source

Wideband and Low-Loss Mode Scrambler for Few-Mode Fibers Based on Distributed Multiple Point-Loads

open access: yesIEEE Photonics Journal, 2021
We propose a new type of all-fiber mode scrambler for mode division multiplexed data transmission based on few mode fibers. By randomly placing multiple point-loads along the fiber length, low loss and wideband mode coupling is obtained amongst all the ...
Yaping Liu   +4 more
doaj   +1 more source

Phase-Sensitive Mode Conversion and Equalization in a Few Mode Fiber Through Parametric Interactions [PDF]

open access: yes, 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

Design and Characterization of Nanopore- Assisted Weakly-Coupled Few-Mode Fiber for Simpler MIMO Space Division Multiplexing

open access: yesIEEE Access, 2020
We report on a novel weakly-coupled 6-LP-mode fiber that features a nanopore-assisted step-index core with double-cladding profile. The purpose of this fiber design is to alleviate modes coupling and bend sensitivity, thus simplifies the multiple-input ...
Yuheng Xie   +6 more
doaj   +1 more source

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