Showing 1 - 20 results of 21 for search '"optical fibres"', query time: 0.04s Refine Results
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    Technical research of a new type of optical fibre with ultra-low-loss and large effective area by Di HAN, Hua XIAO, Yuan ZHONG, Xuegang LAO, Chao HAN

    Published 2020-12-01
    “…The technical solutions of double-cladding waveguide structure and pure SiO<sub>2</sub>core were taken,the G.654.E type ULA-130 fibre ultra-low-loss and large effective area was realized by F-doping design and optimization of the viscosity match between core and caldding.Then the study on various optical characteristics of the ULA-130 fibre was carried out,utilizing self-built optical fibre nonlinear coefficient measurement system and self-designed optical fibre macro-bending loss winding device,as well as the avaliable techniques.The attenuation coefficient,effective area and nonlinear coefficient at 1 550 nm of the ULA-130 fibre was 0.159 dB/km,133 μm<sup>2</sup>and 1.67×10<sup>-10</sup>W<sup>-1</sup>separately.According to the theoretical calculation and technical analysis,the ULA-130 fibre posseses excellent attenuation and nonlinear performance,which is applicable in high capacity,high bitrate and long-range optical backbone network system.Compared to conventional G.652.D fibre,the ULA-130 fibre could improve the optical singal-noise ration and the performance of transmission system dramatically.…”
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    All-Optical VCSEL-to-VCSEL Injection Based on Cross Gain Modulation for Routing in Multinode Flexible Spectrum Optimization in Optical Fibre Transmission Links by P. P. Dlamini, G. M. Isoe, D. Kiboi Boiyo, A. W. R. Leitch, T. B. Gibbon

    Published 2019-01-01
    “…In this work, the proposed technique achieved a 1.3 dB penalty for transmission over a 25 km G.655 nonzero dispersion-shifted single-mode optical fibre, a value within the transmission media and optical system characteristics of 3 dB as recommended by the International Telecommunication Union-Telecommunication (ITU-T). …”
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    Travelling Wave Solutions for Nonlinear Schrödinger Equation with a Higher-Order Dispersive Term by Rui Cao

    Published 2013-01-01
    “…A nonlinear Schrödinger equation with a higher-order dispersive term describing the propagation of ultrashort femtosecond pulses in optical fibres is considered and is transformed into a second-order nonlinear ordinary differential equation. …”
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    Nonlinear Pulse Shaping in Fibres for Pulse Generation and Optical Processing by Sonia Boscolo, Christophe Finot

    Published 2012-01-01
    “…Nonlinear phenomena occurring in optical fibres have many attractive features and great, but not yet fully explored, potential in signal processing. …”
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    Characterisation of the optical response to seismic waves of submarine telecommunications cables with distributed and integrated fibre-optic sensing by David M. Fairweather, Max Tamussino, Ali Masoudi, Zitong Feng, Richard Barham, Neil Parkin, David Cornelius, Gilberto Brambilla, Andrew Curtis, Giuseppe Marra

    Published 2024-12-01
    “…The experimental setup allowed us to also observe how sensing measurements on separate optical fibres within the same cable can lead to significantly different detected waveforms. …”
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    Modelling and in vivo evaluation of tendon forces and strain in dynamic rehabilitation exercises: a scoping review by Antonio I Cuesta-Vargas, Adrian Escriche-Escuder, Jose Casaña

    Published 2022-07-01
    “…One study applied an optic fibre technique to detect forces in the patellar tendon. …”
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    Azobenzene-Based Gel Coated Fibre Bragg Grating Sensor for Moisture Measurement by Mohammed Moniruzzaman, John Rock

    Published 2016-01-01
    “…The performance of the proposed optical fibre moisture sensor was found to be repeatable with no detectable hysteresis and has the potential to offer a low-cost route for monitoring moisture content.…”
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    The Expansion of the Fibre Optic Network in Germany: Switching the Lights to Green by Cordelius Ilgmann

    Published 2022-05-01
    “…The federal government thereby implements a strategic decision that states like Schleswig-Holstein and Thuringia have made before: the basis for a sustainable digital infrastructure is a comprehensive optic fibre network to the building/home (FTTB/FTTH). …”
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    A Review of Refractometric Sensors Based on Long Period Fibre Gratings by G. Rego

    Published 2013-01-01
    “…This paper reviews the recent path towards the development of ultrahigh sensitive optical fibre refractometric sensors.…”
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    Challenges in “probing spectroscopic probes” for noninvasive simultaneous disease diagnosis by Lopamudra Roy, Shweta Paul, Amrita Banerjee, Ria Ghosh, Susmita Mondal, Monojit Das, Monojit Das, Nivedita Pan, Ishitri Das, Soumendra Singh, Debasish Bhattacharya, Asim Kumar Mallick, Samir Kumar Pal

    Published 2025-01-01
    “…In this study, we report noninvasive spectroscopic measurements of total haemoglobin (Hb), bilirubin, and the ratio of oxy- and deoxyhaemoglobin as disease markers for anaemia, jaundice, and oxygen deficiency, respectively, using a meticulously designed optical fibre probe. The challenges in designing the fibre probe for simultaneous noninvasive detection, including optical power, spectral density of the probing light, and resolution of the spectrometer, were found to be critical to accurate measurements. …”
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    A Review of Fault Detecting Devices for Belt Conveyor Idlers by Fahad Alharbi, Suhuai Luo

    Published 2024-03-01
    “…By synthesizing various research findings, the study assesses the effectiveness of different sensor devices in identifying defects, including built-in sensors, fixed sensor options like acoustic, ultrasonic sensors, cameras, accelerometers, and Distributed Optical Fibre Sensors (DOFS), as well as mobile sensor systems. …”
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    PERFORMANCE EVALUATION OF ETHERNET TRANSMISSION USING M-ARY PULSE AMPLITUDE MODULATION TECHNIQUES by APENA WALIU OLALEKAN, OLASUNKANMI OMOWUMI GRACE, SALAKO ANUOLUWAPO

    Published 2021-01-01
    “…The IEEE 802.3ae* 2002 (10 Gigabit Ethernet) standard is based on data transmission over optical fibre only and in full-duplex mode. This study considered performance evaluation of Pulse Amplitude Modulation (PAM) and multilevel (PAM-16) technology in comparison with other PAM versions was carried out to investigate copper Ethernet with respect to higher speed characteristic and error performance. …”
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    Experiment and Prediction of Ablation Depth in Excimer Laser Micromachining of Optical Polymer Waveguides by K. F. Tamrin, S. S. Zakariyah, K. M. A. Hossain, N. A. Sheikh

    Published 2018-01-01
    “…Optical transmission using optical fibre is practically immune to the aforementioned factors. …”
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