Results 41 to 50 of about 106,274 (293)
Measuring Optimal Length of the Amplifying Fiber in Different Working Conditions of the Amplifier
Advances in Electrical and Electronic Engineering, 2014 The aim of this article is to highlight possible unwanted behaviour of an EDFA optical amplifier during temperature changes. After a brief introduction dealing with amplifiers and doped fibers in general we focus on the assembly of our own EDFA amplifier
Radek Poboril +6 more
doaj +1 more source
Compact pulsed thulium-doped fiber laser for topographical patterning of hydrogels
Opto-Electronic Advances, 2020 We report the generation of high energy 2 μm picosecond pulses from a thulium-doped fiber master oscillator power amplifier system. The all-fiber configuration was realized by a flexible large-mode area photonic crystal fiber (LMA-PCF).
Lee Elizabeth +7 more
doaj +1 more source
Frontiers in Physics, 2022 The spectra of narrow linewidth fiber amplifiers are closely related to both the stimulated Brillouin scattering (SBS) threshold in power scaling process and the combining efficiency in coherent beam combining (CBC) system.
Wenchang Lai +11 more
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IEEE Photonics Journal, 2018 We report the numerical demonstration of the transformation from dissipative solitons to amplifier similaritons in an all-normal dispersion ultrafast fiber laser for the first time.
Yueqing Du, Xuewen Shu
doaj +1 more source
Experimental study on the 500-W-level all-fiber amplifier operating near 980 nm
Results in Physics, 2021 In this paper, a 500-W-level all-fiber amplifier operating near 980 nm is demonstrated firstly, to the best of our knowledge. The amplifier is fabricated with a 105/250-μm core/cladding-diameter double-cladding Yb-doped fiber (DCYF).
Maoni Chen +6 more
doaj +1 more source
Principal modes in fiber amplifiers [PDF]
Optics Letters, 2011 The dynamics of the state of polarization in single mode and multimode fiber amplifiers are presented. The experimental results reveal that although the state of polarizations at the output can vary over a large range when changing the temperatures of the fiber amplifiers, the variations are significantly reduced when resorting to the principal states ...
Fridman, Moti +4 more
openaire +3 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
PhotonicsWe report on a 1064 nm master oscillator power amplifier (MOPA) system based on pulse-modulated laser diode seed sources combined with fiber preamplifiers and a Yb-doped tapered double-clad fiber (T-DCF) amplifier used as an all-fiber master oscillator ...
Mikhail Kozlyakov +2 more
doaj +1 more source
Neural network modeling of bismuth-doped fiber amplifier
Journal of the European Optical Society-Rapid Publications, 2023 Bismuth-doped fiber amplifiers offer an attractive solution for meeting continuously growing enormous demand on the bandwidth of modern communication systems.
Donodin Aleksandr +9 more
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Fiber amplification of radially and azimuthally polarized laser light [PDF]
, 2010 The results on amplifying either radially or azimuthally polarized light with a fiber amplifier are presented. Experimental results reveal that more than 85% polarization purity can be retained at the output even with 40dB amplification, and that ...
Asher A. Friesem +18 more
core +1 more source