Results 21 to 30 of about 65,653 (268)
Mid-infrared generation beyond 3.5 µm in a graded-index silica fiber [PDF]
EPJ 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]
EPJ 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
Accelerated nonlinear interactions in graded-index multimode fibers [PDF]
Nature Communications, 2019 AbstractMultimode optical fibers have recently reemerged as a viable platform for addressing a number of long-standing issues associated with information bandwidth requirements and power-handling capabilities. As shown in recent studies, the complex nature of such heavily multimoded systems can be effectively exploited to observe altogether novel ...
M. A. Eftekhar +8 more
openaire +3 more sources
Two octave supercontinuum generation in a non-silica graded-index multimode fiber
Nature 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
Spatiotemporal Evolutions of Similariton Pulses in Multimode Fibers with Raman Amplification
Photonics, 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
Multimode soliton collisions in graded-index optical fibers
Optics Express, 2022 In this work, we unveil the unique complex dynamics of multimode soliton interactions in graded-index optical fibers through simulations and experiments. By generating two multimode solitons from the fission of an input femtosecond pulse, we examine the evolution of their Raman-induced red-shift when the input pulse energy grows larger.
Sun, Yifan +5 more
openaire +7 more sources
Pure Passive Fiber Enabled Highly Efficient Raman Fiber Amplifier With Record Kilowatt Power
IEEE 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
Photonics, 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
IEEE 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
External-fiber-grating vertical-cavity surface-emitting lasers [PDF]
, 2000 A Bragg grating in graded-index multimode fiber was coupled to a 0.8-/spl mu/m VCSEL. By using a fiber Bragg grating, the spectral width of the VCSEL decreased to 1/2-1/3 of the initial value, depending on the temperature of the fiber Bragg grating.
Hamada T, Mizunami Toru, Yamamoto T
core +2 more sources