. "Optics"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Optical communications"@en . . "9" . "Objectives and Contextualisation\n1. To Acquire an advanced level of knowledge of the main blocks that constitute an optical communications link, the integral components (optical fibers, light emitters, photodetectors and other photonic devices), and the basic principles of the digital transmission of optical signals.\n2. Skills: the ability to calculate the most important parameters in the context of digital optical links, to use high-performance optical device and system simulation software (VPI TransmissionMaker), solve problems and write reports, work in small groups of two people.\n3. Competences: To have the mathematical and physical foundations necessary to interpret, select, evaluate, and possibly propose concepts, theories, use the technological developments related to optical communications and their application. Ability to analyze photonic devices, and understand their use in optical telecommunications.\n\n\nCompetences\nAnalyse components and specifications for communication systems that are guided or non-guided by electromagnetic, radiofrequency or optical means.\nApply the necessary legislation in the exercise of the telecommunications engineer's profession and use the compulsory specifications, regulations and standards.\nCommunication\nDevelop personal attitude.\nDevelop personal work habits.\nDevelop thinking habits.\nLearn new methods and technologies, building on basic technological knowledge, to be able to adapt to new situations.\nSelect and devise communication circuits, subsystems and systems that are guided or non-guided by electromagnetic, radiofrequency or optical means to fulfil certain specifications.\nWork in a team.\nLearning Outcomes\nAnalyse components and specifications of optical communication systems.\nApply the national and international regulations and standards to the field of optical communications.\nApply the techniques on which, in the field of optical communications and from the point of view of transmission systems, networks, services and applications are based.\nCommunicate efficiently, orally and in writing, knowledge, results and skills, both professionally and to non-expert audiences.\nDevelop curiosity and creativity.\nDevelop scientific thinking.\nDevelop systemic thinking.\nEfficiently use ICT for the communication and transmission of ideas and results.\nEvaluate the advantages and disadvantages of different technological options for the deployment or implementation of optical communication systems.\nMake one's own decisions.\nManage available time and resources.\nPrevent and solve problems.\nSelect transmission equipment and systems by optical means.\nUse computer applications to support the development and exploitation of networks, services and applications based on optical communications.\nWork cooperatively.\n\nContent\nContent\n\n(T: theory, S: problems or seminars, PS: preparation of problems or seminars, L: laboratories, PP: lab work preparation, E: study, AA: other activities, all these activities have required times specified in hours.)\n\n \n\n1. Optical fibers\n\nT\n\nS\n\nPS\n\nL\n\nE\n\nPP\n\nAA\n\nTotal\n\n9\n\n3\n\n3\n\n6\n\n9\n\n6\n\n \n\n36\n\n \n\nGeneral introduction. Basic concepts of Optics. Guided optical radiation. Singlemode and multimode fibers. Step index fibers and graded index fibers. The optical properties of fibers. Fiber losses, the scattering of Rayleigh, Mie, Brillouin and Raman. Chromatic dispersion, modal dispersion. Transmission characteristics. Special fibers: zero dispersion, displaced dispersion, flattened dispersion. Modelling parameters.\n\n \n\n2. Optical Emitters\n\nT\n\nS\n\nPS\n\nL\n\nE\n\nPP\n\nAA\n\nTotal\n\n9\n\n3\n\n3\n\n6\n\n9\n\n6\n\n \n\n36\n\n \n\nThe basis of light emission. Emission of light in semiconductors. Double heterojunction structure. LED rate equation. Characteristics: spectral line width, step response, modulation response, bandwidth. Fabry-Perot Resonator. Bragg reflectors. Semiconductor laser, types and properties. Laser rate equations, threshold current, step response, modulation response, bandwidth dependence with current. Modeling parameters with rate equations, life time carriers and photons, coefficient of damping, confinement factor.\n\n \n\n3. Optical receivers\n\nT\n\nS\n\nPS\n\nL\n\nE\n\nPP\n\nAA\n\nTotal\n\n9\n\n3\n\n3\n\n6\n\n9\n\n6\n\n \n\n36\n\n \n\nLight detection in p-n junctions. PIN and APD diodes. Equivalent circuit, transimpedance amplifier. Responsivity, dark current. Thermal noise, shot noise, avalanche factor. Consequences of converting optical power to electric current: electrical beat noise S-ASE and ASE-ASE. Bandwidth in actual devices. Modeling parameters: noise spectral density, M, k.\n\n \n\n4. Optical Amplifiers\n\nT\n\nS\n\nPS\n\nL\n\nE\n\nPP\n\nAA\n\nTotal\n\n9\n\n3\n\n3\n\n6\n\n9\n\n6\n\n \n\n36\n\n \n\nImportancein WDM systems. Optical semiconductor amplifiers, two-level system, electric pumping. Introduction to rate equations. Small signal gain, saturation power, noise dependence with gain. ASE noise, dependence with gain. Fiber amplifiers, three-level system, photonic pumping, EDFA doped fiber amplifiers, RAMAN fiber amplifiers with high bandwidth. Modeling parameters.\n\n \n\n5. Optical communications digital links\n\n9\n\nT\n\nS\n\nPS\n\nL\n\nE\n\nPP\n\nAA\n\nTotal\n\n9\n\n3\n\n3\n\n6\n\n6\n\n \n\n36\n\n \n\nTransmission of digital signals, IIDD intensity modulation, direct detection. Parameter Q, BER. Thermal noise, \"shot\" noise. ASE optical noise influence: electric beating noise, S-ASE, ASE-ASE. Interference between symbols (ISI), dispersion. Passive components: isolator, MZ modulator, optical filters. Balance of power and time. Impulse response of the link." . . "Presential"@en . "TRUE" . . "Bachelor in Telecommunication Systems Engineering"@en . . "https://www.uab.cat/web/estudiar/ehea-degrees/general-information/computer-engineering-telecommunication-systems-engineering-1216708259085.html?param1=1345654047869" . "327"^^ . "Presential"@en . "The fast-paced technological evolution and advances in globalisation have made the information and communication technologies (ICTs) present in almost all of our personal and also professional activities. The union of concepts such as information technology, internet and telecommunications is a reality demanding the knowledge of professionals capable of working in all three areas. For this reason, the UAB offers a double degree in which students can receive integrated training leading to two diplomas in five years.\n\nStudents of the double degree in Computer Engineering (Specialisation in Information Technologies) + Telecommunication Systems Engineering will receive training in both the subjects belonging to each degree and interdisciplinary training to help successfully face the professional challenges of the ICTs and acquire a highly valued versatility with which to stand out from other professionals in the sector.\n\nThe close relation with advanced technological and research centres of both local and international prestige, and with leading companies from the ICT sector, facilitates student participation in high quality work placements and a successful entry into the labour market."@en . . . . "5"@en . "FALSE" . . . "Bachelor"@en . "Both" . "1199.90" . "Euro"@en . "Not informative" . "Recommended" . "no data"@en . "no data" . "FALSE" . "Midstream"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .