Results 31 to 40 of about 77,584 (300)

Chromatic Dispersion Measurements of Single-Mode Fibers, Polarization-Maintaining Fibers, and Few-Mode Fibers Using a Frequency Domain Method

open access: yesPhotonics, 2023
Chromatic dispersion is an important fiber attribute affecting transmission performance over optical fibers. Various chromatic dispersion measurement methods have been developed primarily for single-mode fibers.
Xin Chen   +3 more
doaj   +1 more source

Few-mode-fiber technology fine-tunes losses of quantum communication systems

open access: yes, 2021
A natural choice for quantum communication is to use the relative phase between two paths of a single-photon for information encoding. This method was nevertheless quickly identified as impractical over long distances and thus a modification based on ...
A. Alarcón (14384775)   +3 more
core   +1 more source

Experimental Dataset of Tunable Mode Converter Based on Long-Period Fiber Gratings Written in Few-Mode Fiber: Impacts of Thermal, Wavelength, and Polarization Variations

open access: yesData, 2023
Mode division multiplexing (MDM) is currently one of the most attractive multiplexing techniques in optical communications, as it allows for an increase in the number of channels available for data transmission.
Juan Soto-Perdomo   +3 more
doaj   +1 more source

Characterization of few mode fibers by OLCI technique [PDF]

open access: yes2014 The European Conference on Optical Communication (ECOC), 2014
All LP modes of a few mode fiber are simultaneously characterized using phase-sensitive optical low-coherence interferometry. The differential modal group delay and absolute chromatic dispersion values of each mode are retrieved from a single measurement without spatial mode transformers.
Gabet, R.   +7 more
openaire   +1 more source

M2 factor for evaluating fiber lasers from large mode area few-mode fibers

open access: yesFrontiers in Physics, 2023
Evaluating the laser quality accurately is one of the most important and fundamental physical issues for laser sources, and the beam quality of lasers from the large mode area few-mode fibers have been haunted by the presence of high order mode for many ...
Rumao Tao   +7 more
doaj   +1 more source

Gain Equalization for Few-Mode Erbium-Doped Fiber Amplifiers via Strong Mode Coupling

open access: yesApplied 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

Statistical Analysis of Differential Group Delay in Few-Mode Spun Optical Fiber [PDF]

open access: yes, 2022
This thesis proposes a statistical analysis of the differential group delay in few-mode optical fibers. The numerical analysis is performed by an accurate modeling of the propagation and coupling of a few-mode fiber, supporting the first 4 LP groups ...
Guerra, Gianluca
core  

Overcoming the OTDR dead-zone using a few-mode fiber

open access: yes, 2021
Optical-time-domain-reflectometer (OTDR) suffers from the existence of dead-zones along a deployed fiber under test (FUT). Within a dead-zone, OTDR typically fails to provide any reliable diagnostic information.
Ashry, Islam   +5 more
core   +1 more source

Intrinsic loss of few-mode fibers

open access: yesOptics Express, 2018
We summarize theoretical formulae for determining the intrinsic loss of few-mode fibers and compare intrinsic losses among step-index and parabolic graded-index few-mode fibers (FMF) with different dopants, and with single-mode fibers (SMF). The low-loss characteristics of pure-silica-core FMFs, in comparison with SMFs, give rise to additional ...
Yaping, Liu   +5 more
openaire   +3 more sources

CGH-based real-time analysis of fiber Bragg gratings in few mode LMA fibers

open access: yes, 2022
Paper 823712We report on a new approach for experimentally analyzing transversal mode coupling in few mode fiber Bragg gratings (FBGs). Utilizing a spatial light modulator (SLM) enables real-time modulation of the incident spatial light distribution ...
Becker, Ria G.   +6 more
core   +1 more source

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