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Fast mode decomposition in few-mode fibers [PDF]
Nature Communications, 2020 Characterizing the modes at the output of a multimode fiber is time consuming due to computational cost. Here the authors present an algorithm for few-mode-fiber mode decomposition with a fast processing time and using only intensity measurements.
Egor S. Manuylovich +2 more
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Forward Brillouin scattering in few-mode fibers [PDF]
Light: Science & ApplicationsForward Brillouin scattering is an opto-mechanical effect in which two co-propagating optical fields couple with an acoustic mode in a common medium. The effect has been studied in standard optical fibers since 1985, however nearly all studies have been ...
Elad Layosh +6 more
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Block-Based Mode Decomposition in Few-Mode Fibers
PhotonicsA block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore mode coefficients instead of all ...
Chenyu Wang +6 more
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Sparse intensity sampling for ultrafast full-field reconstruction in low-dimensional photonic systems [PDF]
Communications PhysicsPhase-sensitive measurements usually utilize interferometric techniques to retrieve the optical phase. However, when the feature space of an electromagnetic field is inherently low dimensional, most field parameters can be extracted from intensity ...
Egor Manuylovich
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Photonics, 2023 Chromatic dispersion is an important fiber attribute affecting transmission performance over optical fibers. Various chromatic dispersion measurement methods have been developed primarily for single-mode fibers.
Xin Chen +3 more
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Interconnection of Few-Mode Fibers and Photonic Integrated Circuits Using Mode-Field Adapters
Photonics, 2022 We propose a detailed method for the interconnection between optical fibers and waveguides of photonic integrated circuits. Appropriate modal transmission is accomplished by matching the mode field diameters from both waveguide structures. Links from one
Oscar González-Cortez +1 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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High Efficiency Multimode Waveguide Grating Coupler for Few-Mode Fibers
IEEE Photonics Journal, 2022 We describe a novel high coupling efficiency multimode waveguide grating coupler which uses a polysilicon overlay numerically optimized to improve both the directivity and mode-matching of the grating coupler with different modes. The device was realized
Xuetong Zhou, Hon Ki Tsang
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Intensity-only-measurement mode decomposition in few-mode fibers [PDF]
Optics Express, 2021 Recovery of optical phases using direct intensity detection methods is an ill-posed problem and some prior information is required to regularize it. In the case of multi-mode fibers, the known structure of eigenmodes is used to recover optical field and find mode decomposition by measuring intensity distribution.
Manuylovich, Egor +2 more
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Applied Sciences, 2020 Few mode optical fibers are a promising way to continue increasing the data rate in optical communications. However, an efficient method to launch and extract separately each mode is essential. The design of a interferometric spatial mode (de)multiplexer
Xesús Prieto-Blanco +5 more
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