Results 21 to 30 of about 109,242 (281)

Quadratic behavior of fiber Bragg grating temperature coefficients [PDF]

open access: yes, 2004
We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature
Brady   +18 more
core   +1 more source

Spontaneous Rayleigh Seed for Stimulated Rayleigh Scattering in High Power Fiber Amplifiers

open access: yesIEEE Photonics Journal, 2013
We estimate the Stokes wave starting power for stimulated thermal Rayleigh scattering (STRS) produced by thermal fluctuations in the fiber core that transiently alter the refractive index profile in the core.
Arlee V. Smith, Jesse J. Smith
doaj   +1 more source

Forward-stimulated Brillouin scattering in silicon-core fibers

open access: yesFrontiers in Physics, 2023
As a new type of semiconductor fiber, silicon-core fibers have a higher non-linear effect compared with silica fibers. Forward-stimulated Brillouin scattering as a typical optical non-linear effect holds strong promise for applications in, for example ...
Yao Yao   +6 more
doaj   +1 more source

Spectrum to distance mapping via nonlinear Airy pulses [PDF]

open access: yes, 2013
We theoretically and experimentally study the phenomena related to self-phase modulation of Airy pulses in fibers. During nonlinear evolution, most spectral components of the Airy pulses concentrate into one or two peaks for normal and anomalous ...
Azana, Jose   +7 more
core   +2 more sources

53.3 W Visible-Waveband Extra High Power Supercontinuum All-Fiber Laser

open access: yesIEEE Photonics Journal, 2016
A visible-waveband extra high power supercontinuum (SC) all-fiber laser is demonstrated. The laser structure includes a seed laser, master power amplifier, and the SC generation system, which usually adopts photonic crystal fiber (PCF) with small mode ...
Chang Sun   +5 more
doaj   +1 more source

Cascading nonlinearities in an organic single crystal core fiber: The Cerenkov regime [PDF]

open access: yes, 1994
The large nonlinear phase shifts imparted to the fundamental beam during Cerenkov second harmonic generation (SHG) in a DAN, 4-(N,N-dimethylamino)-3-acetamidonitrobenzene, single crystal core fiber are explained and modelled numerically.
Kim, Dug Y.   +6 more
core   +3 more sources

Dissipative Soliton Generation From Yb-Doped Fiber Laser Modulated by Mechanically Exfoliated NbSe2

open access: yesFrontiers in Physics, 2020
We experimentally demonstrated that the stable dissipative solitons can be generated from the Yb-doped fiber laser with the interaction of mechanically exfoliated NbSe2 and the evanescent field of the D-shaped fiber. The modulation depth of the saturable
Longlong Chen   +5 more
doaj   +1 more source

Nonlinear optical interactions in silicon waveguides [PDF]

open access: yes, 2017
The strong nonlinear response of silicon photonic nanowire waveguides allows for the integration of nonlinear optical functions on a chip. However, the detrimental nonlinear optical absorption in silicon at telecom wavelengths limits the efficiency of ...
Baets, Roel   +18 more
core   +2 more sources

Chalcogenide–Tellurite Composite Photonic Crystal Fiber: Extreme Non-Linearity Meets Large Birefringence

open access: yesApplied Sciences, 2019
In this paper, we propose a novel design of a photonic crystal fiber (PCF) with tellurite-cladding, three rings of air-holes and elliptical concentration of As2S3 in the fiber core. The combined effect of tight mode confinement (an effective mode area of
Amir Ahmadian, Yashar Esfahani Monfared
doaj   +1 more source

Observation the Multi-Soliton Patterns From the Er-Doped Mode-Locked Fiber Laser Modulated by PtSe2

open access: yesFrontiers in Physics, 2020
The passively mode-locked fiber laser modulated by low-dimensional materials can provide an ideal platform to investigate the soliton dynamics. Here, we experimentally explored the soliton formation and evolution from an erbium-doped fiber laser mode ...
Man Wu, Guobao Jiang
doaj   +1 more source

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