Results 11 to 20 of about 79,106 (265)
Large Mode Area Single Mode Fiber with a Twisted Polygon-Shaped Core
Photonics, 2022 We present numerical studies on twisted polygon-shaped core fibers for achieving single mode operation with a large mode area propagation in this paper. These large mode area fibers can achieve single mode operation due to twisting-induced high losses to
Kexiong Sun +4 more
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Designing hybrid-guidance large mode area fiber for high-power lasers
Results in Physics, 2023 All-solid large-mode-area antiresonant fibers possess unique characteristics of broadband, low-loss transmission of fundamental mode with effective single mode operation.
Charu Goel, Seongwoo Yoo, Wonkeun Chang
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Thermally Induced Mode Amplification Characteristics of Large Mode Area Segmented Cladding Fiber
IEEE Photonics Journal, 2021 A model of amplifier based on large mode area (LMA) segmented cladding fiber (SCF) is proposed. High order modes (HOMs) filtering effect and thermal-induced modal evolution characteristics are theoretically investigated by the few-mode steady state rate ...
Caijian Xie +6 more
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Investigation of a Large-Mode-Area Fiber Designed for 2.0 μm Based on Multi-Layer Holes Resonance
IEEE Photonics Journal, 2023 This work proposes a novel large mode area fiber with multi-layer holes of 2.0 μm based on electromagnetic field theory and finite element analysis. Modifying the structure parameters can reduce the fundamental mode confinement loss to less than 0.
Xiao Shen +3 more
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Large Mode Area Fibers for High Power Applications [PDF]
Optical Fiber Technology, 1999 We review our recent work toward designing large mode area fibers for high power applications. We show that appropriately designed doped multi-mode fibers can be used to provide robust single-mode output when used in fiber laser cavities. Single-mode (SM) fiber mode field diameters of ~35µm are demonstrated with record SM pulse energies of 0.5mJ at ...
Broderick, N.G.R. +5 more
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M2 factor for evaluating fiber lasers from large mode area few-mode fibers
Frontiers in Physics, 2023 Evaluating the laser quality accurately is one of the most important and fundamental physical issues for laser sources, and the beam quality of lasers from the large mode area few-mode fibers have been haunted by the presence of high order mode for many ...
Rumao Tao +7 more
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Large-mode-area leaky optical fiber fabricated by MCVD [PDF]
Applied Optics, 2011 A large-mode-area single-mode optical fiber based on leaky-mode filtering was prepared by a modified chemical vapor deposition (MCVD) technique. The fiber has a leaky cladding that discriminates the fundamental mode from higher-order modes. A preliminary version has a 25 μm core diameter and 0.11 numerical aperture. A Gaussian-like mode with 22 μm mode
Dussardier, Bernard +3 more
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Bend-resistant octo-wing silica segmented cladding fiber with high index rings
Results in Physics, 2022 We have proposed a novel segmented cladding fiber (SCF) design and the bending effects were investigated in detail. The proposed SCF with large mode area properties has a uniform circular core and octo-wings of rods with higher refractive index than the ...
Marzieh Pournoury, Donghyun Kim
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Large mode area pixelated trench fiber [PDF]
Advanced Photonics, 2014 We propose a novel fiber that offers excellent suppression of higher-order-modes with loss higher than 10dB/m and low loss for fundamental mode (
Jain, D., Baskiotis, C., Sahu, J.K.
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Fabrication and Performance of a Heterogeneous-Helical-Cladding Fiber
IEEE Photonics Journal, 2021 Large mode area (LMA) fibers are widely used in high power fiber lasers to solve the nonlinear problems. In this work, a Nd3+-doped phosphate glass LMA fiber with heterogeneous helical claddings (HHC) is fabricated successfully by rod in tube ...
Xiao Shen +5 more
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