Results 11 to 20 of about 10,828,663 (311)
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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Large mode area photonic crystal fibre
Electronics Letters, 1998 The authors report the realisation of a new design for a large mode area monomode optical fibre. This photonic crystal fibre will guide only a single mode, no matter how large the fibre diameter, provided the shape is kept constant. This is demonstrated with a fibre which has a core diameter equal to approximately 50 free-space wavelengths.
Knight, J.C. +4 more
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Photonic crystal fibres: mapping Maxwell’s equations onto a Schrödinger equation eigenvalue problem [PDF]
Journal of the European Optical Society-Rapid Publications, 2006 We consider photonic crystal fibres (PCFs) made from arbitrary base materials and introduce a short-wavelength approximation which allows for a mapping of the Maxwell’s equations onto a dimensionless eigenvalue equations which has the form of the ...
Mortensen Niels Asger
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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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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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IEEE Photonics Journal, 2021 A resonant-ring-assisted large mode area segmented cladding fiber (RR-SCF) with a high-index ring in the core is proposed. Numerical investigations of the effects of the high-index ring on the leakage losses of guiding modes, mode area, and electric ...
Z. Guo +5 more
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Structure and propagation of modes of large mode area holey fibers [PDF]
Optics Express, 2004 We report cross-section measurement and propagation measurement of modes of large mode area holey fibers using near-field scanning optical microscopy (NSOM). Mode profiles are measured at the fiber end face using a scanning optical fiber tip held 10 nm from the surface, and compared to theoretical models.
Gates, J.C. +5 more
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Large Area Detection of Microstructural Defects with Multi-Mode Ultrasonic Signals
Applied Sciences, 2022 Cyclic loading or other stresses can lead to development of cracks and crack growth in mechanical structures, leading to eventual failure. While ultrasound imaging can be used for non-destructive testing of such structures, conventional ultrasound ...
Taeho Ju, Alp T. Findikoglu
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Large-mode-area Soliton Fiber Oscillator Mode-locked with Linear Self-stabilized Interferometer
, 2022 In this work, we investigate an approach to scale up the output pulse energy in an all polarization-maintaining 17 MHz Yb-doped fiber oscillator via implementation of 25 um core-diameter large-mode-area fibers.
Yi Hua (292248) +5 more
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