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Relevant bibliographies by topics / Fast Optical Signal

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Academic literature on the topic 'Fast Optical Signal'

Author: Grafiati

Published: 11 March 2023

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Journal articles on the topic "Fast Optical Signal"

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Sheng, Zhiyong, Dandan Qu, Yuan Zhang, and Dan Yang. "The Fast Detection and Identification Algorithm of Optical Fiber Intrusion Signals." Algorithms 11, no. 9 (2018): 129. http://dx.doi.org/10.3390/a11090129.

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With the continuous development of optical fiber sensing technology, the Optical Fiber Pre-Warning System (OFPS) has been widely used in various fields. The OFPS identifies the type of intrusion based on the detected vibration signal to monitor the surrounding environment. Aiming at the real-time requirements of OFPS, this paper presents a fast algorithm to accelerate the detection and recognition processing of optical fiber intrusion signals. The algorithm is implemented in an embedded system that is composed of a digital signal processor (DSP). The processing flow is divided into two parts.

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Radhakrishnan, Harsha, Wim Vanduffel, Hong Ping Deng, Leeland Ekstrom, David A. Boas, and Maria Angela Franceschini. "Fast optical signal not detected in awake behaving monkeys." NeuroImage 45, no. 2 (2009): 410–19. http://dx.doi.org/10.1016/j.neuroimage.2008.12.014.

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Ziskind-Conhaim, Lea, and Stephen Redman. "Spatiotemporal Patterns of Dorsal Root–Evoked Network Activity in the Neonatal Rat Spinal Cord: Optical and Intracellular Recordings." Journal of Neurophysiology 94, no. 3 (2005): 1952–61. http://dx.doi.org/10.1152/jn.00209.2005.

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Spatiotemporal patterns of dorsal root–evoked potentials were studied in transverse slices of the rat spinal cord by monitoring optical signals from a voltage-sensitive dye with multiple-photodiode optic camera. Typically, dorsal root stimulation generated two basic waveforms of voltage images: dual-component images consisting of fast, spike-like signal followed by a slow signal in the dorsal horn, and small, slow signals in the ventral horn. To qualitatively relate the optical signals to membrane potentials, whole cell recordings were combined with measurements of light absorption in the area

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YAO, XIN-CHENG, LEI LIU, and YANG-GUO LI. "INTRINSIC OPTICAL SIGNAL IMAGING OF RETINAL ACTIVITY IN FROG EYE." Journal of Innovative Optical Health Sciences 02, no. 02 (2009): 201–8. http://dx.doi.org/10.1142/s1793545809000462.

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Using a near-infrared (NIR) light flood-illumination imager equipped with a high-speed (120 Hz) CCD camera, we demonstrated optical imaging of stimulus-evoked retinal activity in isolated, but intact, frog eye. Both fast and slow transient intrinsic optical signals (IOSs) were observed. Fast optical response occurred immediately after the stimulus onset, could reach peak magnitude within 100 ms, and correlated tightly with ON and OFF edges of the visible light stimulus; while slow optical response lasted a relatively long time (many seconds). High-resolution images revealed both positive (incr

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Yao, Xincheng, and Tae-Hoon Kim. "Fast intrinsic optical signal correlates with activation phase of phototransduction in retinal photoreceptors." Experimental Biology and Medicine 245, no. 13 (2020): 1087–95. http://dx.doi.org/10.1177/1535370220935406.

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Quantitative assessment of physiological condition of retinal photoreceptors is desirable for better detection and treatment evaluation of eye diseases that can cause photoreceptor dysfunctions. Functional intrinsic optical signal (IOS) imaging, also termed as optoretinography (ORG) or optophysiology, has been proposed as a high-resolution method for objective assessment of retinal physiology. Fast IOS in retinal photoreceptors shows a time course earlier than that of electroretinography a-wave, promising an objective marker for noninvasive ORG of early phototransduction process in retinal pho

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Sun, Xiaoyong, Shaojing Su, Xiaojun Guo, and Junyu Wei. "A Fast and Blind Chromatic Dispersion Estimation Based on Stepwise Optimal Order Search Method in Fractional Domain." Photonics 9, no. 4 (2022): 223. http://dx.doi.org/10.3390/photonics9040223.

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A fast and low-complexity blind chromatic dispersion (CD) estimation method is proposed by a stepwise optimal order search of fractional Fourier transform (FrFT) in coherent optical communications. The method can track the cumulative dispersion over time in future dynamic and flexible scenarios. The validity of the FrFT method is verified by analogy to the field of CD estimation from the energy concentration property of the chirp signal, and the estimation equation of the CD value is obtained by parameter transformation. Numerical simulations have been carried out in the CD range of 1600 ps/nm

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Sytnik, O. "Optimal nonlinear fi ltering of stochastic processes in rescue radar." RADIOFIZIKA I ELEKTRONIKA 26, no. 3 (2021): 18–23. http://dx.doi.org/10.15407/rej2021.03.018.

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Subject and Purpose. Smoke, fog, avalanches, debris of collapsed structures and other optically opaque obstacles in both natural and man-made disasters make optical sensors useless for detecting victims. Electromagnetic waves of the decimeter range penetrate well almost all obstacles, reflect from the trapped people and return to the radar receiver. Due to the breathing and heartbeat, the human-reflected sounding signals get the Doppler phase modulation, which is an information signal. These information signals and their properties provide the subject matter for the present research with the a

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YU, LI-PING, JIAN-CHEN GUO, LI-DEK CHOU, et al. "POLARIZATION-SENSITIVE OPTICAL COHERENCE TOMOGRAPHY USING A MODIFIED BALANCE DETECTOR." Journal of Innovative Optical Health Sciences 05, no. 04 (2012): 1250024. http://dx.doi.org/10.1142/s1793545812500241.

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In conventional polarization-sensitive optical coherence tomography (PS-OCT), phase retardation is obtained by the amplitude of P and S polarization only, and the fast axis angle is obtained by the phase difference in P and S polarizations via Hilbert transformation. In this paper, we proposed a modified PS-OCT setup in which the phase retardation and fast axis angle are simply expressed as the function of the amplitude of P and S polarization and their differential signal. Due to the common-path feature between the two channels of P and S polarization, the fluctuation in the measurement of ph

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Nelson, D. A., and L. C. Katz. "Optical imaging of brain slice preparations using voltage sensitive dyes." Proceedings, annual meeting, Electron Microscopy Society of America 53 (August 13, 1995): 810–11. http://dx.doi.org/10.1017/s0424820100140427.

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Fast responding, biological membrane-soluble voltage sensitive dyes are probes which make it possible to directly monitor the electrical activity of neuronal tissues with both high temporal and high spatial resolution. High temporal resolution is desirable because of the millisecond time scale on which neuronal events occur. High spatial resolution is desirable to better reveal the complex interactions between different regions of neural circuits.Taking full advantage of the promise of voltage sensitive dyes can be both difficult and expensive. Tissues stained with these dyes undergo very smal

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Chkalova, D. G. "Fast optical signal filtering by means of amplitude and phase operators." Journal of Physics: Conference Series 1679 (November 2020): 022092. http://dx.doi.org/10.1088/1742-6596/1679/2/022092.

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Dissertations / Theses on the topic "Fast Optical Signal"

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Awad, Ehab S. "Ultra-fast optical signal processing for digital communications using all-optical nonlinear interactions in semiconductor optical waveguides." College Park, Md. : University of Maryland, 2003. http://hdl.handle.net/1903/299.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2003.<br>Thesis research directed by: Electrical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Pachnicke, Stephan [Verfasser]. "Fast Analytical Assessment of the Signal Quality in Transparent Optical Networks / Stephan Pachnicke." Aachen : Shaker, 2005. http://d-nb.info/1186576782/34.

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Bekker, Scott Henry. "Continuous real-time recovery of optical spectral features distorted by fast-chirped readout." Thesis, Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/bekker/BekkerS0506.pdf.

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Zhao, Jun. "Fast optical signal detected in the prefrontal lobe with near-infrared spectroscopy during sleep." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4237.

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Thesis (M.S.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (January 11, 2007) Includes bibliographical references.

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Shahoei, Hiva. "Tunable Slow and Fast Light Generation and the Applications in Microwave Photonics." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31201.

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In this thesis, new techniques to generate slow and fast light are proposed and investigated. The use of the slow and fast light for microwave photonics applications is also investigated. This thesis consists of four parts. In the first part, the generation of slow and fast light based on fiber Bragg gratings (FBGs) is studied. Two techniques are proposed. In the first technique, slow and fast light is generated based on a linearly chirped fiber Bragg grating (LCFBG); and in the second technique, slow and fast light is generated based on a tilted fiber Bragg grating (TFBG). Theoretical analys

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Manoochehri, Mana. "Enregistrement simultané par EEG haute résolution et signal optique rapide (fast NIRS) chez l'enfant épileptique." Thesis, Amiens, 2017. http://www.theses.fr/2017AMIE0034.

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Les pointes épileptiques intercritiques (IES) représentent une signature neuronale de l'activation transitoire hypersynchrone et excessive d'un grand ensemble de neurones corticaux hétérogènes. Elles sont considérées comme la signature de l’épileptogénicité du réseau neuronal sous-jacent. Dans cette étude, des changements sur la configuration neurale ont été observés chez des modèles animaux et humains au cours de l'IES. Pour la première fois, ces changements ont été détectés à l'aide de la spectroscopie optique rapide (FOS), qui correspond aux variations de la lumière diffusée par le tissu ne

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Petreto, Andrea. "Débruitage vidéo temps réel pour systèmes embarqués." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS060.

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Pour beaucoup d'applications, la présence de bruit dans les vidéos peut être un problème majeur. Des algorithmes de débruitage existent, la plupart sont qualitativement très efficaces mais au prix d'un temps de traitement trop important pour pouvoir envisager une implémentation temps réel embarquée. D'autres méthodes, plus rares, peuvent être exécutées en temps réel mais gèrent mal les forts niveaux de bruit. Pour bon nombre d'applications, il est cependant important de conserver une bonne qualité d'images en toutes conditions avec parfois d'importantes contraintes d'embarquabilité. Dans ces t

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Albuquerque, André Antunes de Carvalho. "All-optical signal processing for optical communication systems." Doctoral thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23624.

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Doutoramento em Engenharia Física<br>O processamento ótico de sinal é uma alternativa possível para melhorar o desempenho e eficiência de sistemas de comunicações óticas, mas o seu estágio atual de desenvolvimento é ainda insuficiente para aplicações em sistemas reais. De forma a inverter esta situação, novas estratégias e pos-sibilidades para processamento ótico de sinal são aqui investigadas, com ênfase em conversão de comprimento de onda, regeneração de fase e amplificação sensível à fase em dispositivos de niobato de lítio com inversão periódica dos domínios ferroelétricos e fibras forteme

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Rocha, Peterson 1977. "Degradação de sinais com modulação NRZ-DQPSK e 16-QAM em enlaces ponto a ponto com amplificadores ópticos a semicondutor = NRZ-DQPSK and 16-QAM signal degradation in fiber links with semiconductor optical amplifiers." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260643.

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Orientador: Evandro Conforti<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-21T04:49:45Z (GMT). No. of bitstreams: 1 Rocha_Peterson_M.pdf: 5254230 bytes, checksum: 811832dc531fcd6bcc9edf29f71bf219 (MD5) Previous issue date: 2012<br>Resumo: Modulações ópticas avançadas como DQPSK e QAM tem sido escolhidas por serem formatos multiniveis (dois bits ou mais por símbolo), aumentando a eficiência espectral de sistemas ópticos. Entretanto, o amplificador óptico a semicondutor (SOA) indicado princ

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Ribeiro, Vitor Bedotti. "Filtros digitais para recepção coerente em 112 Gb/s de sinais ópticos com modulação QPSK e multiplexação por divisão em polarização." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261928.

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Orientadores: Aldário Chrestani Bordonalli, Júlio César Rodrigues Fernandes de Oliveira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-22T02:02:14Z (GMT). No. of bitstreams: 1 Ribeiro_VitorBedotti_M.pdf: 8224184 bytes, checksum: f63b4dc7f1e4170cdcb48f49bf1b4155 (MD5) Previous issue date: 2012<br>Resumo: As mudanças nos padrões de tráfego na internet forçam a constante evolução das redes ópticas, que, por serem sistemas com grande capacidade e se estenderam por milhares de quilômetros, são

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Books on the topic "Fast Optical Signal"

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John, Schewel, and Society of Photo-optical Instrumentation Engineers., eds. Field programmable gate arrays (FPGAs) for fast board development and reconfigurable computing: 25-26 October, 1995, Philadelphia, Pennsylvania. SPIE, 1995.

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United States. National Aeronautics and Space Administration., ed. Feasibility study, software design, layout and simulation of a two-dimensional fast Fourier transform machine for use in optical array interferometry: Final report on the NASA FTT project covering the period June 1, 1989 to September 1, 1994. National Aeronautics and Space Administration, 1994.

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Ishikawa, Hiroshi. Ultra-Fast All-Optical Signal Processing Devices. Wiley & Sons, Limited, John, 2008.

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Book chapters on the topic "Fast Optical Signal"

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Navarro, Rafael, and Antonio Tabernero. "Gaussian Wavelet Transform: Two Alternative Fast Implementations for Images." In Optical Signal Processing. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-4006-9_8.

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Medvedev, A. V., J. M. Kainerstorfer, S. V. Borisov, and J. VanMeter. "Fast optical signal in the prefrontal cortex correlates with EEG." In XII Mediterranean Conference on Medical and Biological Engineering and Computing 2010. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13039-7_159.

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Syré, Frank, Hellmuth Obrig, Jens Steinbrink, Matthias Kohl, Rüdiger Wenzel, and Arno Villringer. "Are VEP Correlated Fast Optical Signals Detectable in the Human Adult by Non-Invasive Nearinfrared Spectroscopy (NIRS)?" In Oxygen Transport to Tissue XXIV. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0075-9_39.

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Lobbe, Alexander. "Deep Learning for the Benes Filter." In Mathematics of Planet Earth. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-18988-3_12.

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AbstractThe filtering problem is concerned with the optimal estimation of a hidden state given partial and noisy observations. Filtering is extensively studied in the theoretical and applied mathematical literature. One of the central challenges in filtering today is the numerical approximation of the optimal filter. Here, accurate and fast methods are actively sought after, especially for such high-dimensional settings as numerical weather prediction, for example. In this paper we present a brief study of a new numerical method based on the mesh-free neural network representation of the density of the solution of the filtering problem achieved by deep learning. Based on the classical SPDE splitting method, our algorithm includes a recursive normalisation procedure to recover the normalised conditional distribution of the signal process. The present work uses the Benes model as a benchmark. The Benes filter is a well-known continuous-time stochastic filtering model in one dimension that has the advantage of being explicitly solvable. Within the analytically tractable setting of the Benes filter, we discuss the role of nonlinearity in the filtering model equations for the choice of the domain of the neural network. Further, we present the first study of the neural network method with an adaptive domain for the Benes model.

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Li, Xinwan, Zehua Hong, Shuguang Li, and Jianping Che. "Digitally Fast Programmable Optical Signal Processing Devices." In Optical Fiber New Developments. InTech, 2009. http://dx.doi.org/10.5772/7556.

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E. Abejide, Adebayo, Madhava R. Kota, Sushma Pandey, et al. "Direct and External Hybrid Modulation Approaches for Access Networks." In Network-on-Chip [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96085.

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The demand for low-cost high-speed transmission is a major challenge for 5G future networks. To meet this optical communication demand, holistic and painstaking approaches are required in designing a simplified system model. Since the demands for high bandwidth are growing at unprecedented speed as we approach the Zettabyte era, it is crucial to minimize chromatic dispersion (CD) associated to high bit-rate signals. Mitigating CD electronically comes at high cost which may not be compatible with 5G. Photonic Integrated Circuit (PIC) as an enabler for fast speed optical transmission is still undergoing its growth stage and its major speed and efficiency have not yet been attained. However, proper and right combination of components and approaches can potentiate this technology in a more cost-efficient way. Hybrid modulation (HM)-PIC presents a simplified approach in terms of cost and efficiency for 5G networks. Hybridization of existing modulation components and approaches in PIC can enhance the generation of high bit-rate signals without the need for electrical CD compensation. A detailed study of hybrid multilevel signal modulation concept as a valuable solution for Data Centers (DC) high data-rate signals and next-generation Passive Optical Networks (PONs) is proposed.

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Ben, Y., and B. I. Lembrikov. "New Approach to Ultra-Fast All-Optical Signal Processing Based on Quantum Dot Devices." In Semiconductor Technologies. InTech, 2010. http://dx.doi.org/10.5772/8567.

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Gratton, Gabriele, and Monica Fabiani. "Fast Optical Signals." In In Vivo Optical Imaging of Brain Function, Second Edition. CRC Press, 2009. http://dx.doi.org/10.1201/9781420076851.ch15.

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Gratton, Gabriele, and Monica Fabiani. "Fast Optical Signals." In In Vivo Optical Imaging of Brain Function. CRC Press, 2002. http://dx.doi.org/10.1201/9781420038491.ch9.

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Chiarini, Marco, Alberto Parini, and Gian Giuseppe Bentini. "Integrated Optics and Photonics for Optical Interferometric Sensing." In Optical Interferometry - A Multidisciplinary Technique in Science and Engineering [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.103770.

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Integrated optics (IO) microsystems, based on guided wave and photonics structures, can find interesting developments for optical interferometric analysis in sensing applications. In fact, IO interferometric microsystems can act as transducers of the information carried on by an optical signal and originated along the signal optical path. In addition, the application of Integrated Optics and Photonics techniques, allow producing very small size and reduced power consumption instrumentation. These features explain the reason why the IO microsystems for interferometric analytics know an increasing interest in many areas such as Astrophysics, Environment, Biosciences, Space and Earth Exploration, Safety and Security. This chapter starts by synthetically describing the basics of the main analytical techniques covered by IO micro-devices. A discussion of the integrated micro-device fabrication procedures, with an analysis of the implied performance limitations, follows. Finally, a description of new generation optical interferometric microsystems, applied to different scientific and technical areas, completes the chapter.

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Conference papers on the topic "Fast Optical Signal"

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Wiatrek, Andrzej, Ronny Henker, Stefan Preußler, and Thomas Schneider. "1.4 Bit Delay and Pulse Compression Based on Brillouin Optical Signal Processing." In Slow and Fast Light. OSA, 2009. http://dx.doi.org/10.1364/sl.2009.smc4.

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Wu, F. M., P. C. Peng, R. L. Lan, J. H. Chen, C. T. Lin, and S. Chi. "Tunable Optical Delay Line using Semiconductor Laser for 10 Gbit/s Data Signal." In Slow and Fast Light. OSA, 2009. http://dx.doi.org/10.1364/sl.2009.jtub28.

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Balan, Radu, Bernhard G. Bodmann, Peter G. Casazza, and Dan Edidin. "Fast algorithms for signal reconstruction without phase." In Optical Engineering + Applications, edited by Dimitri Van De Ville, Vivek K. Goyal, and Manos Papadakis. SPIE, 2007. http://dx.doi.org/10.1117/12.731117.

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Chin, Sanghoon, and Luc Thévenaz. "Large multi Gbit/s delays generated in an all-optical tunable delay line preserving wavelength and signal bandwidth." In Slow and Fast Light. OSA, 2008. http://dx.doi.org/10.1364/sl.2008.smc3.

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Oxenlowe, L. K., M. Galili, H. Hu, et al. "Serial optical communications and ultra-fast optical signal processing of Tbit/s data signals." In 2010 IEEE Topical Meeting on Microwave Photonics (MWP 2010). IEEE, 2010. http://dx.doi.org/10.1109/mwp.2010.5664119.

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Konishi, Tsuyoshi. "Ultra-fast Optical Signal Processing using Optical Time-Space Conversion." In 2007 Conference on Lasers and Electro-Optics - Pacific Rim. IEEE, 2007. http://dx.doi.org/10.1109/cleopr.2007.4391677.

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Liu, Y., E. Tangdiongga, Z. Li, et al. "Ultra-fast all-optical signal processing: toward optical packet switching." In Asia-Pacific Optical Communications, edited by Chang Soo Park, Shizhong Xie, Curtis R. Menyuk, and Ken-ichi Kitayama. SPIE, 2006. http://dx.doi.org/10.1117/12.687147.

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Oxenlowe, Leif Katsuo. "Ultra-broadband and Ultra-fast Optical Signal Processing." In Signal Processing in Photonic Communications. OSA, 2015. http://dx.doi.org/10.1364/sppcom.2015.spt2e.2.

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Belovolov, M. I., E. M. Dianov, V. I. Karpov, V. N. Protopopov, and V. N. Serkin. "Fiber Optic Dynamic Memory For Fast Signal Processing And Optical Computing." In Optical Computing '88, edited by Pierre H. Chavel, Joseph W. Goodman, and Gerard Roblin. SPIE, 1989. http://dx.doi.org/10.1117/12.947878.

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Mi, Tiebin, and Shidong Li. "Fast null space tuning algorithms with feedbacks for sparse signal recovery." In SPIE Optical Engineering + Applications, edited by Dimitri Van De Ville, Vivek K. Goyal, and Manos Papadakis. SPIE, 2013. http://dx.doi.org/10.1117/12.2024819.

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Reports on the topic "Fast Optical Signal"

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Brady, David J., James J. Coleman, and Kenneth G. Purchase. Ultra-Fast Optical Signal Encoding and Analysis for Communications and Data Fusion Networks. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada377846.

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Kuznetsov, Victor, Vladislav Litvinenko, Egor Bykov, and Vadim Lukin. A program for determining the area of the object entering the IR sensor grid, as well as determining the dynamic characteristics. Science and Innovation Center Publishing House, 2021. http://dx.doi.org/10.12731/bykov.0415.15042021.

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Currently, to evaluate the dynamic characteristics of objects, quite a large number of devices are used in the form of chronographs, which consist of various optical, thermal and laser sensors. Among the problems of these devices, the following can be distinguished: the lack of recording of the received data; the inaccessibility of taking into account the trajectory of the object flying in the sensor area, as well as taking into consideration the trajectory of the object during the approach to the device frame. The signal received from the infrared sensors is recorded in a separate document in

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Mizrach, Amos, Sydney L. Spahr, Ephraim Maltz, et al. Ultrasonic Body Condition Measurements for Computerized Dairy Management Systems. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7568109.bard.

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The body condition (BC) score is recognized in the dairy industry as an essential tool for managing the energy reserves of the dairy cow, which is essential for sustaining optimal and efficient production over several lactations. The current use of BC scoring depends on the accuracy of subjective visual estimates, and this limits its kusefulness as a management aid in the dairy industry. A measuring tool that would frequently provide objective data on the cow's body reserves would be a major contribution to efficient dairy herd management. Ultrasonic sensors have the potential to be developed

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