Results 41 to 50 of about 62,338 (160)

Experimental Study on Transverse Mode Instability Characteristics of Few-Mode Fiber Laser Amplifier Under Different Bending Conditions

open access: yesIEEE Photonics Journal, 2022
We studied the transverse mode instability (TMI) characteristics of few-mode fiber laser amplifier employing ytterbium-doped fiber (YDF) with core/cladding diameter of 30/400 μm under different bending diameters.
Yujun Wen   +6 more
doaj   +1 more source

Rayleigh scattering in few-mode optical fibers [PDF]

open access: yesScientific Reports, 2016
AbstractThe extremely low loss of silica fibers has enabled the telecommunication revolution, but single-mode fiber-optic communication systems have been driven to their capacity limits. As a means to overcome this capacity crunch, space-division multiplexing (SDM) using few-mode fibers (FMF) has been proposed and demonstrated.
Zhen Wang   +5 more
openaire   +3 more sources

Measurement of Principal Modes in Few-Mode Fibers by S2 Method

open access: yesIEEE Photonics Journal, 2020
Using principal modes (PMs) can avoid the inter-mode crosstalk in fiber-optic communication and reduce the complexity of digital signal processing. In this paper, a new detection method for PMs based on spatially and spectrally resolved imaging (S2) is ...
Zixiang Di   +5 more
doaj   +1 more source

Block-Based Mode Decomposition in Few-Mode Fibers

open access: yesPhotonics
A block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore mode coefficients instead of all ...
Chenyu Wang   +6 more
doaj   +1 more source

Accurate Analysis of Crosstalk Between LP$_{11}$ Quasi-Degenerate Modes Due to Offset Connection Using True Eigenmodes

open access: yesIEEE 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

Few-Mode Fiber True Time Delay Lines [PDF]

open access: yes2019 21st International Conference on Transparent Optical Networks (ICTON), 2019
Space-division multiplexing optical fibers can provide not only parallel channel transmission but also parallel distributed signal processing, being this a feature particularly attractive in Microwave Photonics applications. We present here few-mode fiber links with tailored modal propagation and dispersion properties that operate as sampled true time ...
Sergi García   +2 more
openaire   +3 more sources

Dead Zone Fault Detection Optimization Method for Few-Mode Fiber Links Based on Unexcited Coupled Higher-Order Modes

open access: yesPhotonics
The 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

Dynamic Control of Distal Spatial Mode Pattern Output From Multimode Fiber Using Integrated Coherent Network

open access: yesIEEE 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

Few-mode elastomeric optical fibers

open access: yesOptical Materials Express, 2021
We present a new approach for producing elastomeric optical fibers with an optical behaviour corresponding to a few-mode optical fiber. Different fibers have been produced by first fabricating thermoplastic polyurethane preforms and subsequently drawing them.
Miguel Llera   +7 more
openaire   +1 more source

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

open access: yesNanophotonics, 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

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