Results 41 to 50 of about 14,738,138 (292)

Design and Analysis of a Large Mode Field Area and Low Bending Loss Multi-Cladding Fiber with Comb-Index Core and Gradient-Refractive Index Ring

Sensors, 2023
The large mode field area fiber can raise the tolerance of power, and high requirements for the bending characteristics of optical fibers are needed. In this paper, a fiber composed of a comb-index core, gradient-refractive index ring, and multi-cladding
Yining Zhang, Yudong Lian
doaj   +1 more source

Extreme large mode area in single-mode pixelated Bragg fiber

Optics Express, 2016
This paper reports the design and the fabrication of an all-solid photonic bandgap fiber with core diameter larger than 100 µm, a record effective mode area of about 3700 µm2 at 1035 nm and robust single-mode behavior on propagation length as short as 90 cm.
Yehouessi, Jean-Paul, Vanvincq, Olivier, Cassez, Andy, Douay, Marc, Quiquempois, Yves, Bouwmans, Géraud, Bigot, Laurent   +6 more
openaire   +2 more sources

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

FEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt, Ana‐Maria Sandru, Georg Vucak, Sebastian Didusch, Biljana Riemelmoser, Karin Ehrenreiter, Markus Hartl, Lukas A. Huber, Manuela Baccarini   +8 more
wiley   +1 more source

Stabilized Large Mode Area in Tapered Photonic Crystal Fiber for Stable Coupling

IEEE Photonics Journal, 2012
A rigorous modal solution approach based on the numerically efficient finite element method (FEM) has been used to design a tapered photonic crystal fiber with a large mode area that could be efficiently coupled to an optical fiber.
M. Uthman, B. M. A. Rahman, N. Kejalakshmy, A. Agrawal, H. Abana, K. T. V. Grattan   +5 more
doaj   +1 more source

The effect of periodicity on the defect modes of large mode area microstructured fibers

Optics Express, 2008
It is well known that periodic variations in refractive index can be used to create guidance in an optical fiber via photonic bandgap effects. It has also been shown that periodic structure in index-guiding microstructured fibers can lead to the guidance of additional leaky higher-order modes due to bandgap effects.
Flanagan, Joanne C., Amezcua, R., Poletti, F., Hayes, J.R., Broderick, N.G.R., Richardson, D.J.   +5 more
openaire   +3 more sources

Characteristics of Q-switched cladding-pumped ytterbium-doped fiber lasers with different high-energy fiber designs

, 2001
We theoretically and experimentally analyze Q-switched cladding pumped ytterbium-doped fiber lasers designed for high pulse energies. We compare the extractable energy from two high-energy fiber designs: (1) single- or few-moded low-NA large mode area ...
Alvarez-Chavez, J.A., Clarkson, W.A., Nilsson, J., Offerhaus, H.L., Turner, P.W., Renaud, Cyril C., Richardson, D.J., Grudinin, A.B.   +7 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Large-mode-area fibers operating near single-mode regime

Optics Express, 2016
Lower NA in large-mode-area fibers enables better single-mode operation and larger core diameters. Fiber NA has traditionally been limited to 0.06, mostly due to the control tolerance in the fabrication process. It has been recognized recently that transverse mode instability is a major limit to average power scaling in fiber lasers.
Fanting, Kong, Christopher, Dunn, Joshua, Parsons, Monica T, Kalichevsky-Dong, Thomas W, Hawkins, Maxwell, Jones, Liang, Dong   +6 more
openaire   +2 more sources

Spatial and single‐nuclei transcriptomics reveals idiosyncratic and generic patterns in papillary and anaplastic thyroid cancers

Molecular Oncology, EarlyView.
Matched spatial transcriptomics and single‐nuclei RNA‐seq were generated for anaplastic and BRAFV600E papillary thyroid cancers revealing generic and tumor‐specific states occurring in cancer cells and in the tumor microenvironment. In this context, cancer dedifferentiation mirrored organoid maturation through ordered thyroid marker gain/loss ...
Adrien Tourneur, Joel Rodrigues Vitória, Manuel Saiselet, Ligia Craciun, Denis Larsimont, Anne Lefort, Frédérick Libert, Carine Maenhaut, Sabine Costagliola, Maxime Tarabichi, Mirian Romitti, Vincent Detours   +11 more
wiley   +1 more source

High-Order Modes Suppression in All-Glass Large-Mode Area Rare-Earth Doped Optical Fibers with Modified Cladding

Photonics, 2022
In the present work we have developed and realized a high core-to-cladding diameters ratio active optical fibers operated in a single-mode regime due to specially designed structure containing boron-doped and fluorine-doped rods.
Svetlana S. Aleshkina, Maxim M. Khudyakov, Tatiana A. Kashaykina, Mikhail V. Yashkov, Mikhail Yu. Salganskii, Vladimir V. Velmiskin, Mikhail M. Bubnov, Mikhail E. Likhachev   +7 more
doaj   +1 more source