Results 21 to 30 of about 4,434,198 (280)

Splicing tolerances in graded-index fibers [PDF]

open access: yesApplied Physics Letters, 1976
Calculations are presented showing that, in general, a parabolic-index fiber is more sensitive to lateral misalignments within a splice than a step-index fiber. However, misalignments result in the excitation of leaky modes in graded-index fibers, and this can lead to optimistic joint loss measurements. Effective losses are given for various lengths of
Adams, M.J., Payne, D.N., Sladen, F.M.E.
openaire   +2 more sources

Mid-infrared generation beyond 3.5 µm in a graded-index silica fiber [PDF]

open access: yesEPJ Web of Conferences, 2023
We present theoretical as well as experimental evidence of far-detuned nonlinear wavelength conversion towards the mid-infrared, namely beyond 3.5 µm, in a few-mode graded-index silica fiber pumped at 1.064 µm.
Stefanska Karolina   +5 more
doaj   +1 more source

Refractive index measurements of ethanol-water binary liquid solutions using a graded-index fiber tip sensor [PDF]

open access: yesEPJ Web of Conferences, 2023
The refractometric analysis of ethanol-water mixtures is hampered because this type of binary solution does not present a linear behaviour. In this work it is proposed a multimode Graded-Index Fiber (GIF) tip sensor for the measurement of ethanol in ...
Soares Liliana   +5 more
doaj   +1 more source

Two octave supercontinuum generation in a non-silica graded-index multimode fiber

open access: yesNature Communications, 2022
Two-octave supercontinuum generation in the femtosecond regime from the visible to mid-infrared and self-cleaning dynamics are reported in a non-silica graded-index multimode fiber with nanostructured design and enhanced nonlinearity.
Zahra Eslami   +7 more
doaj   +1 more source

Pure Passive Fiber Enabled Highly Efficient Raman Fiber Amplifier With Record Kilowatt Power

open access: yesIEEE Access, 2019
Kilowatt-level high-efficiency all-fiberized Raman fiber amplifier based on pure passive fiber is proposed for the first time in this paper. The laser system is established on master oscillator power amplification configuration, while a piece of graded ...
Yizhu Chen   +4 more
doaj   +1 more source

Spatiotemporal Evolutions of Similariton Pulses in Multimode Fibers with Raman Amplification

open access: yesPhotonics, 2021
This paper aims to pave the way towards the demonstration of spatiotemporal similariton pulses’ evolution in passive multimode fibers with Raman amplification.
Leila Graini, Bülend Ortaç
doaj   +1 more source

Design of Silica Multimode Optical Fibers with Extremely Enlarged Core Diameter for Laser-Based Multi-Gigabit Short-Range Optical Networks

open access: yesPhotonics, 2018
This work presents an alternative fast and simple method for the design of a refractive index profile of silica multimode optical fibers (MMFs) with extremely enlarged core diameters of up to 100 µm for laser-based multi-gigabit short-range optical
Anton V. Bourdine   +5 more
doaj   +1 more source

Theoretical Analysis of Heat Distribution in Raman Fiber Lasers and Amplifiers Employing Pure Passive Fiber

open access: yesIEEE Photonics Journal, 2020
In this paper, we study the thermal dissipation of Raman fiber laser and amplifier utilizing pure passive fiber as gain medium for the first time. Take into account the convective and conductive heat transferring process in the fiber, we consider the ...
Yizhu Chen   +4 more
doaj   +1 more source

Single-Mode Input Fiber Combined with Multimode Sensing Fiber Used in Brillouin Optical Time-Domain Reflectometry

open access: yesPhotonics, 2022
Conventional single-mode fiber (SMF) Brillouin optical time-domain reflectometry (BOTDR) suffers from a low signal-to-noise ratio (SNR) and severe sensing reliability due to the influence of the stimulated Brillouin scattering threshold and bend loss. In
Yongqian Li   +6 more
doaj   +1 more source

Study of Optical Fiber Design Parameters in Fiber Optics Communications

open access: yesKurdistan Journal of Applied Research, 2017
Fiber optics is an important part in the telecommunication infrastructure. Large bandwidth and low attenuation are features for the fiber optics to provide gigabit transmission.
Salim Qadir Mohammed   +1 more
doaj   +1 more source

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