Littérature scientifique sur le sujet « Directional Coupler Modulator »
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Articles de revues sur le sujet "Directional Coupler Modulator"
Yu, M., et A. Gopinath. « Seventeen-GHz directional coupler optical modulator ». IEEE Transactions on Microwave Theory and Techniques 43, no 9 (1995) : 2198–202. http://dx.doi.org/10.1109/22.414564.
Texte intégralThaniyavarn, S. « Modified 1×2 directional coupler waveguide modulator ». Electronics Letters 22, no 18 (1986) : 941. http://dx.doi.org/10.1049/el:19860641.
Texte intégralBhowmik, Tanmay, et Debabrata Sikdar. « Parallel directional coupler based dual-polarization electro-absorption modulator using epsilon near-zero material ». Journal of Physics D : Applied Physics 55, no 13 (31 décembre 2021) : 135107. http://dx.doi.org/10.1088/1361-6463/ac4455.
Texte intégralAnwar, N., C. Themistos, B. M. A. Rahman et K. T. V. Grattan. « Design considerations for an electrooptic directional coupler modulator ». Journal of Lightwave Technology 17, no 4 (avril 1999) : 598–605. http://dx.doi.org/10.1109/50.754789.
Texte intégralHayashi, Hideki, et Kunio Tada. « GaAs traveling‐wave directional coupler optical modulator/switch ». Applied Physics Letters 57, no 3 (16 juillet 1990) : 227–28. http://dx.doi.org/10.1063/1.103723.
Texte intégralYu-Chueh Hung et H. R. Fetterman. « Polymer-based directional coupler modulator with high linearity ». IEEE Photonics Technology Letters 17, no 12 (décembre 2005) : 2565–67. http://dx.doi.org/10.1109/lpt.2005.859491.
Texte intégralYu-Chueh Hung, Soeng Ku Kim, H. Fetterman, Jingdong Luo et A. K.-Y. Jen. « Experimental Demonstration of a Linearized Polymeric Directional Coupler Modulator ». IEEE Photonics Technology Letters 19, no 21 (novembre 2007) : 1762–64. http://dx.doi.org/10.1109/lpt.2007.905661.
Texte intégralTahersima, Mohammad H., Zhizhen Ma, Yaliang Gui, Shuai Sun, Hao Wang, Rubab Amin, Hamed Dalir, Ray Chen, Mario Miscuglio et Volker J. Sorger. « Coupling-enhanced dual ITO layer electro-absorption modulator in silicon photonics ». Nanophotonics 8, no 9 (14 août 2019) : 1559–66. http://dx.doi.org/10.1515/nanoph-2019-0153.
Texte intégralTavlykaev, R. F., et R. V. Ramaswamy. « Highly linear Y-fed directional coupler modulator with low intermodulation distortion ». Journal of Lightwave Technology 17, no 2 (1999) : 282–91. http://dx.doi.org/10.1109/50.744238.
Texte intégralLaliew, C., S. W. Lovseth, Xiaobo Zhang et A. Gopinath. « A linearized optical directional-coupler modulator at 1.3 /spl mu/m ». Journal of Lightwave Technology 18, no 9 (septembre 2000) : 1244–49. http://dx.doi.org/10.1109/50.871701.
Texte intégralThèses sur le sujet "Directional Coupler Modulator"
Hung, Yu-Chueh. « Linearized electrooptic polymeric directional coupler modulator ». Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1383481091&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Texte intégralLaliew, Chanin. « A synthesized electrooptic directional-coupler modulator at 1300-nanometer wavelength with low switching voltage / ». Diss., ON-CAMPUS Access For University of Minnesota, Twin Cities Click on "Connect to Digital Dissertations", 2002. http://www.lib.umn.edu/articles/proquest.phtml.
Texte intégralGHOMASHI, MOHAMMADAMIN. « Multiphysics Simulation of Electro-optic Modulators Based on Plasmonic Waveguides ». Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2970992.
Texte intégralDaniel, Hani S. « Electro-optic waveguide modulators based on the coaxial directional coupler ». Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38277.
Texte intégralCosta, Marcos Benedito Caldas. « AnÃlise NumÃrica do Acoplador Duplo NÃo-Linear Baseado em Fibras de Cristais FotÃnicos (NLDC-PCF) Operando com PAM e PWM para ObtenÃÃo de Portas LÃgicas ». Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9147.
Texte intégralNeste trabalho, apresentamos uma anÃlise numÃrica para a obtenÃÃo de portas lÃgicas totalmente Ãptica baseada em um acoplador direcional nÃo-linear simÃtrico (NLDC) em fibras de cristal fotÃnico (PCF). O projeto mais comumente usado para o NLDC-PCF à uma fibra holey, utilizada neste trabalho, em que a seÃÃo transversal à uma matriz periÃdica de buracos de ar que se prolonga por todo o comprimento da fibra, operando com dois pulsos de luz ultracurtos na forma de sÃlitons, de duraÃÃo mÃnima de 100fs (femtosegundos). Investigamos dois formatos de modulaÃÃo por pulsos, a modulaÃÃo por amplitude de pulso (PAM) na modalidade de chaveamento de mudanÃa de amplitude (ASK) e a modulaÃÃo por largura de pulso (PWM) para obter portas lÃgicas no NLDC-PCF duplo simÃtrico. Avaliamos o efeito resultante de um incremento no parÃmetro codificaÃÃo PAM (ε) e PWM (w), considerando a dispersÃo de segunda ordem (β2), a dispersÃo de terceira ordem (β3) e efeitos nÃo-lineares, tais como: SPM (Self Phase Modulation), SS (Self-Steepening) e IRS (lntrapulse Raman Scattering) em uma configuraÃÃo sem perdas. Os nossos resultados indicam que à possÃvel obter operaÃÃes lÃgicas utilizando um controle de fase entre os pulsos de entrada.
We present a numerical analysis for obtaining all-optical logic gates based on a nonlinear directional coupler symmetric (NLDC) based on photonic crystal fibers (PCF). The most commonly used to project the NLDC-PCF is a holey fiber, used here in cross section which is a periodic array of air holes extending through the length of the fiber, using two ultrashort light pulses in form of solitons, the minimum duration of 100fs (femtoseconds). We investigated two forms of modulation pulse, pulse amplitude modulation (PAM) in the form of amplitude shift keying (ASK) modulation and pulse width modulation (PWM) for logic gate NLDC-PCF symmetrical double. We evaluated the effect resulting from an increase in the offset parameter encoding PAM (ε) and PWM (w), considering the second order dispersion (β2), the third order dispersion (β3) and non-linear modulation effects SPM (Self Phase Modulation), SS (Self-Steepening) and IRS (lntrapulse Raman Scattering) in a configuration without loss. Our results indicate that logical operations can be obtained using a phase control between the input pulses.
Bastos, Agliberto Melo. « Estudo de acopladores de fibra Ãptica tradicional e de cristal fotÃnico e aplicaÃÃes : geraÃÃo de portas lÃgicas e sensor de corrente elÃtrica ». Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15236.
Texte intégralApresentamos neste trabalho, uma analise numÃrica para obtenÃÃo de portas lÃgicas em acoplador nÃo-linear simÃtrico (NLDC) em fibras de cristal fotÃnico (PCF), que em sua secÃÃo transversal à formada com matriz periÃdica de buracos de ar, operando em pulso de luz ultracurtos na forma de sÃlitons, com duraÃÃo de 100fs (fentosegundos). Foram investigados formatos dos pulsos em modulaÃÃo por amplitude de pulso (PAM), com chaveamento de mudanÃa de amplitude (ASK), com objetivo de obter portas lÃgicas no NLDC-PCF triplo planar simÃtrico. Neste trabalho usamos acopladores duplos de fibra Ãptica na constituiÃÃo de um InterferÃmetro Mach-Zenhder para construir um sensor de corrente, sua funcionalidade à aplicada para investigar a qualidade da corrente alternada, quer seja na geraÃÃo, transmissÃo ou distribuiÃÃo de energia elÃtrica. Como o interferÃmetro de Mach-Zenhder usa um agente mecÃnico, usaremos o mesmo agente para construir o sensor de corrente constituÃdo de um PiezelÃtrico. Ao fazer o comparativo dos dois sensores, podemos destinar sua usabilidade em diferenciados consumidores
In this work, a numerical analysis to obtain gates in coupler symmetrical nonlinear (NLDC) in photonic crystal fibers (PCF), which in cross section is formed with periodic array of air holes, operating in light pulse ultrashort as solitons, lasting 100fs (fentosegundos). The pulses in pulse amplitude modulation formats were investigated (WFP), with amplitude shift keying (ASK), in order to obtain logic gates in the triple NLDC PCF-planar symmetrical. In this paper we use double couplers fiber optic in setting up a Mach-Zenhder Interferometer to build a current sensor, its functionality is applied to investigate the quality alternating current, whether in the generation, transmission or distribution of electricity. Since the interferometer of Mach-Zenhder uses a mechanical agent, agent will use the same for constructing the current sensor constituted of a piezoelectric. In making the comparison of the two sensors, we can allocate its usability in different consumers
Kuo, Yu-zheng, et 郭祐禎. « Photonics Ultra-Wide-Band Doublet Pulse Based on Tapered Directional Coupler Integrated Electroabsorption Modulator ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/57478532747265543163.
Texte intégral國立中山大學
光電工程學系研究所
99
Ultra Wide Band (UWB) is a short-pulse signal which has extremely potential in wireless communication system due to the advantages of high data rate, better immunity to multipath fading, wide bandwidth, and high capability. According to the Federal Communications Commission (F.C.C.), UWB only can be transmitted in short distance of a few to tens of meters due to low power density (-41.3dBm/MHz). However, optical fiber has low loss and cost and wide bandwidth, so it can be achieved in wide area network. In this work, we propose a novel method to generate optical UWB doublet pulse without complicated setup. When electroabsorption modulator (EAM) integrating a taper optical directional coupler (TODC) was applied field, the transmission loss and coupling would change resulting from the absorption coefficient and effective index of active waveguide with the applied field. So, we used a single mode fiber collecting the power after the device, we could get the valley shape transfer function. Using the transfer function of electro-absorption modulator (EAM) integrating TODC we inject a Gaussian pulse into the EAM in the range of valley shape, and it can transform an electrical pulse into optical UWB doublet pulse by acceptable operating point. Therefore, the optical signals could be transmitted in optical fiber so that it can reduce loss of the electro-optic transformation. Experimentally, the full wave at half maximum of doublet pulse, 10dB bandwidth, fractional bandwidth were 75ps, 7.5GHz, 125%, respectively, and power density was less than -41.3dBm/MHz. These were all meeting the F.C.C. standard. In the future, we will use long distant optical fiber to transmitted UWB signal, and compare with different distance. Finally, we will check the UWB signal can be transmitted in optical fiber to achieve wide range signal transmission by bit error rate test.
chun, che-chang, et 張哲準. « Voltage Control Refractive Index Vertical Directional Coupler For Integrating Spot Size Converter And Electroabsorption Modulator ». Thesis, 2008. http://ndltd.ncl.edu.tw/handle/45562765560392704616.
Texte intégral國立中山大學
光電工程研究所
96
Abstract Optical spot-size converter (SSC) is an essential element in the opto-electronic integrated circuit because of its direct coupling to single-mode optical fiber, low-cost from the misalignment issue in package. By the tapered waveguide structure, SSC offers a capability to transfer an elliptical optical mode of optical waveguide to single-mode fiber matched mode, allowing the independence of device design from the coupling issue. However, the conversion efficiency of SSC is strongly reliant on tapered waveguide structure, material index, and also excitation wavelengths, restricting design and fabrication of SSC. In order to enhance the reliability on SSC fabrication, a voltage-controllable SSC integrated with electroabsorption modulator (EAM) is designed and fabricated. The tapered waveguide processing is based on the selective undercut wet-etching on InGaAsP-material system. The active waveguide width of EAM is 3.5μm, where the tapered waveguide widths is ranged from 1.7μm to 3.5μm. The transferred optical waveguide (passive waveguide) is 8μm wide. By adjusting the voltage of tapered waveguide, coupling efficiency is enhanced by 2dB from 1560nm to 1570nm. A reliable SSC-integrated EAM with -12dB of insertion loss, extinction ratio of 22dB is demonstrated. By extracting the index change from Fabry-Perot optical mode of waveguide, index variation from reverse bias is in the order of 10-3, consistent with the calculation based on Kramer-Kronig model.
Lee, Beom Suk 1974. « Novel EO polymer-based micro- and nano photonic devices for analog and digital communications ». Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-2673.
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Zhou, Qingjun. « Electro-optic modulators based on polymeric Y-fed directional couplers ». Thesis, 2004. http://hdl.handle.net/2152/1444.
Texte intégralLivres sur le sujet "Directional Coupler Modulator"
Kim, Chang Min. Traveling-wave LiNbo3 optical modulator using Y-branch directional coupler. 1989.
Trouver le texte intégralChapitres de livres sur le sujet "Directional Coupler Modulator"
Zhixun, Liang, Yi Yunfei, Lin Fang et Fan Yuanyuan. « Silicon Electro-optic Modulator for Photonic Ring Network On-Chip Based on Dual ITO Layer Directional Coupler ». Dans Proceedings of the 11th International Conference on Computer Engineering and Networks, 903–8. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6554-7_97.
Texte intégralRasch, A., M. Rottschalk et W. Karthe. « Optimization of Ti:LiNbO3 Directional Couplers and Their Application to a Mach-Zehnder Interferometer Modulator ». Dans Springer Series in Optical Sciences, 232–35. Berlin, Heidelberg : Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-540-39452-5_45.
Texte intégralZiemann, Ulf. « Enhancement of neuroplasticity by drug therapy ». Dans Oxford Textbook of Neurorehabilitation, sous la direction de Volker Dietz, Nick S. Ward et Christopher Kennard, 221–36. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198824954.003.0017.
Texte intégralZiemann, Ulf. « Enhancement of neuroplasticity by drug therapy ». Dans Oxford Textbook of Neurorehabilitation, 193–208. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199673711.003.0017_update_001.
Texte intégralKaturji, Marwan, Bob Noonan, Jiawei Zhang, Andres Valencia, Benjamin Shumcher, Jessica Kerr, Tara Strand, Grant Pearce et Peyman Zawar-Reza. « Atmospheric turbulent structures during shrub fires and implications for flaming zone behavior ». Dans Advances in Forest Fire Research 2022, 1397–407. Imprensa da Universidade de Coimbra, 2022. http://dx.doi.org/10.14195/978-989-26-2298-9_212.
Texte intégralKennel, Charles F. « The Geosynchronous Substorm ». Dans Convection and Substorms. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195085297.003.0016.
Texte intégralActes de conférences sur le sujet "Directional Coupler Modulator"
Chang, William S. C., Mark L. Farwell et Zong Qi Lin. « Directional coupler modulator with high linearity ». Dans Beijing - DL tentative, sous la direction de Sui-Sheng Mei et Bingkun Zhou. SPIE, 1993. http://dx.doi.org/10.1117/12.144153.
Texte intégralThaniyavarn, Suwat. « Self-Biased 1X2 Modified Directional Coupler Modulator ». Dans Technical Symposium Southeast, sous la direction de Shi-Kay Yao. SPIE, 1987. http://dx.doi.org/10.1117/12.940710.
Texte intégralKhanna, Trishna, et Deepak Bhatia. « MEMS based optical phase modulator using directional coupler ». Dans 2017 IEEE International Conference on Power, Control, Signals and Instrumentation Engineering (ICPCSI). IEEE, 2017. http://dx.doi.org/10.1109/icpcsi.2017.8392259.
Texte intégralSherif, S. M., L. A. Shahada et M. Swillam. « Silicon nanowires organic hybrid modulator based on directional coupler ». Dans 2016 Photonics North (PN). IEEE, 2016. http://dx.doi.org/10.1109/pn.2016.7537963.
Texte intégralKhan, M. Nisa, Anand Gopinath et Julian P. G. Bristow. « Velocity matched traveling wave directional coupler optical modulator in AlGaAs/GaAs ». Dans Integrated Photonics Research. Washington, D.C. : Optica Publishing Group, 1991. http://dx.doi.org/10.1364/ipr.1991.thg5.
Texte intégralThaniyavarn, Suwat. « A Modified 1x2 Directional Coupler Modulator With Low Drive Voltage ». Dans Cambridge Symposium-Fiber/LASE '86, sous la direction de O. G. Ramer et Paul Sierak. SPIE, 1987. http://dx.doi.org/10.1117/12.937439.
Texte intégralHung, Yu-Chueh, SeongKu Kim, Harold R. Fetterman, Jingdong Luo et Alex Jen. « Demonstration of Polymer-based Directional Coupler Modulator with High Linearity ». Dans CLEO 2007. IEEE, 2007. http://dx.doi.org/10.1109/cleo.2007.4452710.
Texte intégralMarsh, John A., Sriram Sriram, Anand Gopinath, Ross Schermer, Jaesang Oh, Stuart Kingsley et Andrea Pollick. « Linearized electro-optic directional coupler modulator in stoichiometric lithium niobate ». Dans Optical Science and Technology, the SPIE 49th Annual Meeting, sous la direction de Edward W. Taylor. SPIE, 2004. http://dx.doi.org/10.1117/12.563068.
Texte intégralAshley, Paul R., et William S. C. Chang. « Linearization technique for a guided-wave electrooptic Bragg modulator ». Dans Integrated and Guided Wave Optics. Washington, D.C. : Optica Publishing Group, 1986. http://dx.doi.org/10.1364/igwo.1986.thcc12.
Texte intégralKhan, M. Nisa. « High-bandwidth velocity-matched optical directional coupler modulator in AlGaAs/GaAs ». Dans Integrated Optoelectronics for Communication and Processing. SPIE, 1992. http://dx.doi.org/10.1117/12.2321810.
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