Higher-order modes suppression in negative curvature anti-resonance hollow core fibers by multiple resonant coupling
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2020.126246
Abstract: Abstract In this paper, a method to suppress the higher-order modes in the negative curvature anti-resonance hollow core fibers (NC-AR-HCFs) by utilizing multiple resonant coupling is proposed. With this method, a hollow core fiber is… read more here.
Keywords: order modes; hollow core; higher order; resonant coupling ... See more keywords
Higher-order modes excitation in generator with photonic crystal
Sign Up to like & getrecommendations! Published in 2019 at "Results in physics"
DOI: 10.1016/j.rinp.2019.102758
Abstract: Abstract We revealed physical processes responsible for the excitation of higher-order modes in volume free-electron laser with photonic crystal. We discovered the new approach for the selection of the electromagnetic modes in volume free-electron laser… read more here.
Keywords: order modes; higher order; photonic crystal; excitation ... See more keywords
High order modes suppression and manipulation in six-holes helical chiral microstructure fiber
Sign Up to like & getrecommendations! Published in 2021 at "Optical Fiber Technology"
DOI: 10.1016/j.yofte.2020.102445
Abstract: Abstract We experimentally report a high-order-mode (HOM) suppression effect which may bring dips in transmission spectrum of a large-size (with core diameter > 10 µm) six-hole helical microstructured fiber (HMSF). Firstly, we performed rigorous theoretical analysis in helical… read more here.
Keywords: suppression; order modes; modes suppression; mode ... See more keywords
Influence of higher-order modes on ferroconvection.
Sign Up to like & getrecommendations! Published in 2022 at "Chaos"
DOI: 10.1063/5.0097398
Abstract: Using Fourier representations, an elaborate study of regular cellular-convective and chaotic motions in a ferrofluid is made. Investigation is made on the adequacy or otherwise of the minimal mode in studying such motions. Higher-order modes… read more here.
Keywords: order modes; state; higher order; chaotic motion ... See more keywords
Waveguide Bends for Suppressed Mode Coupling
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Journal of Quantum Electronics"
DOI: 10.1109/jqe.2019.2958364
Abstract: Waveguide bends are key components of photonic integrated circuits, enabling complex layouts and high packing densities. Often waveguides at bends are wide and consequently multi-mode for lower loss propagation. Higher order modes, which are excited… read more here.
Keywords: bend curvature; order modes; higher order; curvature ... See more keywords
A Low-Profile Microstrip Patch Antenna With Enhanced Bandwidth and Pattern Diversity Using Even- and Odd-Order Modes
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2021.3069252
Abstract: A low-profile microstrip patch antenna with pattern diversity is proposed. In our design, even- and odd-order modes are employed to enhance the impedance bandwidth for the conical and broadside radiation beams, respectively. Initially, an array… read more here.
Keywords: order modes; profile microstrip; even odd; odd order ... See more keywords
Excitation of higher-order modes in optofluidic photonic crystal fiber.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.030245
Abstract: Higher-order modes up to LP33 are controllably excited in water-filled kagomé- and bandgap-style hollow-core photonic crystal fibers (HC-PCF). A spatial light modulator is used to create amplitude and phase distributions that closely match those of… read more here.
Keywords: fiber; photonic crystal; order modes; higher order ... See more keywords
Observation and characterization of the high order modes in a six-mode fiber using an OFDR method.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.464137
Abstract: High order modes in a six-mode fiber are separately observed and characterized using an Optical Frequency Domain Reflectometry (OFDR) method. Due to the difference in group refractive index between fundamental mode and the high order… read more here.
Keywords: order modes; six mode; high order; modes six ... See more keywords
Polarization and modal analysis of a large-area, polarization-maintaining higher-order-modes fiber via a Bragg grating
Sign Up to like & getrecommendations! Published in 2020 at "Optics Letters"
DOI: 10.1364/ol.383387
Abstract: We report a method for the characterization of the higher-order modes in polarization-maintaining multimode optical fibers using a Bragg grating. We evaluate a 400 µm diameter, polarization-maintaining higher-order-modes fiber by inscribing a Bragg grating, resonant… read more here.
Keywords: order modes; polarization; higher order; bragg grating ... See more keywords
Bending effect characterization of individual higher-order modes in few-mode fibers.
Sign Up to like & getrecommendations! Published in 2017 at "Optics letters"
DOI: 10.1364/ol.42.003343
Abstract: We propose an approach to directly measure the bending effect on individual modes in few-mode fibers using a wavelength-scanning spatially and spectrally resolved imaging technique. By collecting a fiber output beam profile with a scanning… read more here.
Keywords: order modes; mode fibers; bending effect; modes mode ... See more keywords
Glottal Source Contribution to Higher Order Modes in the Finite Element Synthesis of Vowels
Sign Up to like & getrecommendations! Published in 2019 at "Applied Sciences"
DOI: 10.3390/app9214535
Abstract: Articulatory speech synthesis has long been based on one-dimensional (1D) approaches. They assume plane wave propagation within the vocal tract and disregard higher order modes that typically appear above 5 kHz. However, such modes may… read more here.
Keywords: order modes; glottal source; synthesis; higher order ... See more keywords