Results 61 to 70 of about 3,293,063 (304)
Statistical Analysis of Differential Group Delay in Few-Mode Spun Optical Fiber [PDF]
, 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
Transverse-mode coupling and diffraction loss in tunable Fabry–Pérot microcavities
New Journal of Physics, 2015 We report on measurements and modeling of the mode structure of tunable Fabry–Pérot optical microcavities with imperfect mirrors. We find that non-spherical mirror shape and finite mirror size leave the fundamental mode mostly unaffected, but lead to ...
Julia Benedikter +6 more
doaj +1 more source
An Optical Power Divider Based on Mode Coupling Using GaN/Al2O3 for Underwater Communication
Photonics, 2019 This paper details the design of a 1 × 8 optical power divider, using a gallium nitride (GaN) semiconductor on sapphire, which can be applied to underwater optical wireless communication.
Retno Wigajatri Purnamaningsih +3 more
doaj +1 more source
Tunable Filters Based on Cascaded Long-Period Polymer Waveguide Gratings
Photonic Sensors, 2022 Long-period waveguide grating based filters have attracted attention due to their flexible fabrication, a variety of materials and structures, low back reflection, low insertion loss, and excellent performance in the tuning range and temperature ...
Xin Shi, Rui Cao, Lingfang Wang
doaj +1 more source
Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber
Sensors, 2021 A method for controlling the excitation of cladding modes by tapering special fiber insertions made of SM450 and coreless fibers is proposed. The coupling coefficients between the core mode and the cladding modes of the tapered fiber insertion are ...
Diomid D. Bakurov, Oleg V. Ivanov
doaj +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
PhotonicsThis paper presents the results of a detailed theoretical study of the bending properties of all-glass leakage channel microstructured optical fibers (LC MOFs) with a polymer coating over a bending radius range from 4.8 cm to 10 cm.
Alexander N. Denisov +2 more
doaj +1 more source
Photonics, 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
Transverse Mode Coupling in RHIC [PDF]
, 1990 In the Proceedings of the Workshop on the RHIC Performance, it was stated that the transverse mode coupling instability, posed a potential intensity limitation for protons. This was based on the expression I{sub b} = 4(E{sub t}/qe) Q{sub s} 4 {radical}{pi} {sigma} {ell}/(Im (Z{sub {perpendicular}}) R 3) where E{sub t} is the total energy, q the ...
openaire +4 more sources
Modelling stem cell differentiation related processes—A practical overview for biologists
FEBS Letters, EarlyView.Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar +4 more
wiley +1 more source