Optical telecommunications systems (ETF TKO OTS 4770) |
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General information |
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Module title | Optical telecommunications systems |
Module code | ETF TKO OTS 4770 |
Study | ETF-B |
Department | Telecommunications |
Year | 1 |
Semester | 1 |
Module type | Mandatory |
ECTS | 6 |
Hours | 70 |
Lectures | 42 |
Exercises | 14 |
Tutorials | 14 |
Module goal - Knowledge and skill to be achieved by students |
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| The goal of the course is to enable students to master the basics in field of optical telecommunications systems, most commonly used optical fibers and their features, modeling optical systems and propagations, using up to date modulation formats in optical systems as well as reasons for weakening of optical signals in transmission through optical fibers. | |
Syllabus |
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| Structure of optical WDM transmission systems, basic features of standard single-mode optical fibers: weakening, chromatic dispersion, polarization dispersion of the mode. Optical nonlinearities: four-wave mixing, Raman’s dispersion, own and cross phase modulation, Brillouin’s dispersion. Modeling the optical signal transmission using Schrödinger’s equation. Optical amplifiers. Optical filters. Generation and detection of signal in different modulation formats: NRZ/RZ modulation intensity, dampening of the RZ carrier, PN code RZ, RZ-DPSK, double-binary modulation, QAM. Direct detection, coherent detection. Optical transmission systems: error probability, system margins, degradation of system parameters. Systematically optimized design. Highly capacitive WDM channel systems, large distance systems, channel with ultra-high information speeds, Soliton systems | |
Literature |
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Didactic methods |
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| Lectures are performed directly in an aula. Lectures are followed by solution of problems performed by the lecturer with goal of enabling students to master mathematical instruments and methods introduced during lectures, on which the analyzed optical systems are based. <br> Through tutorials during which students are guided and supervised by tutors, other problems and exam problems are solved, and the ideas for solution of the problems presented during exercises are given. In this way it is possible to continually follow the preparedness of students for final exam. <br> As part of laboratory exercises students are introduced with basic features of optical systems, and their software simulations and they perform specific parameter measuring for those systems. <br> |
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Exams |
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| During the course students earn points according to the following system: <br> - Attending classes and tutorials: 10 points, student with more then three absences from lectures and/or tutorials can not get these points. <br> - Home assignments and laboratory exercises bring maximum of 10 points, assuming solving 5 to 10 assignments equally distributed throughout the semester. <br> - Partial exams: two partial exams; each positively evaluated partial exam 20 points. Each partial exam lasts 90 minutes and it is structured as follows: <br> - Answering to simple questions with goal of testing whether student has basic theoretical knowledge; students with correct answers to all such questions earn 5 points; <br> - Solving an open answer problem, with correct answer bringing 10 points; <br> - Solving problems with multiple answers offered, on of answers being the correct one; students with correct answers to all such questions earn 5 points; <br> Students who earned less then 20 points during the semester must retake the course. Students who earned 40 or more points during the semester will take a final exam; This exam consists of discussion of problems from partial exams, home assignments and answers to simple questions related to course topics. <br> Final oral exam provides maximum of 40 points. In order to get positive final grade, students must earn minimum of 20 points in this exam. Student failing to earn the minimum must take the makeup oral exam. Student who earned 20 or more, and less then 40 points during the semester, will have to take the makeup exam. <br> The makeup exam is organized in the following manner: <br> - Written part structured similarly to partial written exam, during which students solve problems in topics they failed on partial exams (less then 10 points); <br> - Oral part structured the same as the oral part of the final exam. <br> Only students who managed to earn total score of 40 or more points in written part of the makeup exam will be allowed to take the oral part of the makeup exam, where the mentioned score consists of points earned through attending lectures, solving home assignments, passing partial exams and passing the written part of makeup exam. Oral makeup exam provides maximum of 40 points. In order to achieve positive final grade students must earn minimum of 20 points in this exam. Student failing to earn the minimum will have to retake the course. Oral makeup exam gives maximum of 40 points. In order to achieve positive final grade students must achieve minimum of 20 points in this exam. Student failing to achieve the minimum will have to re-enroll for this course. <br> |
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Aditional notes |
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| 1. During the written part of the exam students are allowed to use a list of formulas prepared by lecturers, which may be of use in solving problems. It is not allowed to use other notes, books, cell phones or other electronic devices. <br> 2. Problems, which students must solve during the exam, are of the same type solved during the lectures and tutorials. <br> |
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