Transmission Lines & Optical Fibres

EEEN30212 Transmission Lines & Optical Fibres 10 Semester 2 Undergraduate Level 3 Subhasish Chakraborty Unit coordinator Department of Electrical & Electronic Engineering 1 FHEQ level (Framework for Higher Education Qualifications) ' Last part of a Bachelors ' European Credit Transfer & Accumulation System Rating : 5.0 This unit will cover the following:(1) Transmission LinesIntroduction, circuits electrically large compared with Î». What is a transmission line? Simple transmission line structures. Time and space dependence of signals on ideal transmission lines. L, R, C, & G per unit length - Primary constants. One dimensional wave equation. Phase velocity.Derivation of characteristic impedance. Line terminations, reflection and transmission coefficients. Steps and pulses on transmission lines, lattice diagram. Sinusoids on transmission lines. Solution to one-dimensional wave equation. Propagation constant, attenuation and phase constants. Reflection and dispersion.Standing wave ratio, VSWR, and relationship with reflection coefficient. Sketches and derivations of Imax, Imin, Vmax, Vmin, Zmax and Zmin. Derivation of input impedance for an arbitrarily loaded lossless transmission line.(2) Optical FibresOptical Fibres:  fibre modes and numerical aperture. Loss (attenuation) mechanisms. Bandwidth limitations: Intermodal and intramodal dispersion. Pulse broadening, rms spectral width and pulse width concepts, ISI and eye diagrams, maximum bit-rate and fibre bandwidth.Optical Receivers and sources: PIN diodes, quantum efficiency, responsivity, noise and bandwidth. LEDs and laser diodes, modulation characteristics and bandwidth limitations. External modulators.Optical amplifiers, operation principles and system applications. Wavelength division multiplexing. This unit will cover the following:(1) Transmission LinesIntroduction, circuits electrically large compared with Î». What is a transmission line? Simple transmission line structures. Time and space dependence of signals on ideal transmission lines. L, R, C, & G per unit length - Primary constants. One dimensional wave equation. Phase velocity.Derivation of characteristic impedance. Line terminations, reflection and transmission coefficients. Steps and pulses on transmission lines, lattice diagram. Sinusoids on transmission lines. Solution to one-dimensional wave equation. Propagation constant, attenuation and phase constants. Reflection and dispersion.Standing wave ratio, VSWR, and relationship with reflection coefficient. Sketches and derivations of Imax, Imin, Vmax, Vmin, Zmax and Zmin. Derivation of input impedance for an arbitrarily loaded lossless transmission line.(2) Optical FibresOptical Fibres:  fibre modes and numerical aperture. Loss (attenuation) mechanisms. Bandwidth limitations: Intermodal and intramodal dispersion. Pulse broadening, rms spectral width and pulse width concepts, ISI and eye diagrams, maximum bit-rate and fibre bandwidth.Optical Receivers and sources: PIN diodes, quantum efficiency, responsivity, noise and bandwidth. LEDs and laser diodes, modulation characteristics and bandwidth limitations. External modulators.Optical amplifiers, operation principles and system applications. Wavelength division multiplexing. The course unit aims to:<ul><li>To build upon fundamental principles from circuit analysis to yield a quantitative model for wave propagation along transmission lines.</li><li>To introduce the use of optical fibres for wideband digital communication.</li></ul> ILO 1 - Calculate impact of attenuation, amplification and noise on digital transmission rates in fibre optic communication. [Developed] [Assessed]ILO 2 - Summarize the fundamental mode of operation  of optical sources, fibres, amplifiers and detectors in relation to fibre optic communications. [Developed] [Assessed]ILO 3 - Predict the performance of a long or short haul optical fibre system based on the performance of its component parts. [Developed] [Assessed]ILO 4 - Calculate the input impedance to an arbitrarily terminated non-dispersive transmission line. [Developed] [Assessed]ILO 5 - Compare and contrast the advantages and disadvantages of different fibre systems for different applications from a cost and performance perspective. [Developed] [Assessed]ILO 6 - Analyse the pulsed propagation properties on a transmission line using the bounce diagram. [Developed] [Assessed]ILO 7 - Analyse the sinusoidal steady state performance of a transmission line in terms of propagation constant, reflection coefficient and standing wave ratio and their relevance to supporting a propagating electromagnetic wave. [Developed] [Assessed]ILO 8 - Develop a quantitative model for wave propagation along transmission lines building upon fundamental principles from circuit analysis and electromagnetic fields. [Developed] [Assessed] Lectures, Practical work/laboratoriesTutorials; Revision lectures/surgeries; Online discussions; 0 Other 20% 1 Written exam 80% Coursework:Coursework forms 20% of the unit assessment and is both formative and summative and assessed by a lab report. . EEEN10232 Electronic Circuit Design I Pre-Requisite Compulsory BEng(Hons) Electrical and Elec BEng(Hons) Electrical and Elec Third Year Optional BEng(Hons) Electrical and Elec BEng(Hons) Electrical and Elec Third Year Optional BEng(Hons) Mechatronic Enginee BEng(Hons) Mechatronic Enginee Third Year Optional BEng(Hons) Mechatronic Enginee BEng(Hons) Mechatronic Enginee Third Year Optional MEng (Hons) Electrical and Ele MEng (Hons) Electrical and Ele Third Year Optional MEng (Hons) Electrical and Ele MEng (Hons) Electrical and Ele Third Year Optional MEng (Hons) Mechatronic Engine MEng (Hons) Mechatronic Engine Third Year Optional MEng (Hons) Mechatronic Engine MEng (Hons) Mechatronic Engine Third Year Optional BEng (Hons) Electronic Eng BEng (Hons) Electronic Enginee Third Year Optional BEng (Hons) Electronic Eng WIE BEng(Hons) Electronic Eng WIE Third Year Optional MEng (Hons) Electronic Enginee MEng (Hons) Electronic Engine Third Year Optional MEng (Hons) Electronic Eng WIE MEng Electronic EngineeringWIE Third Year Optional N Fiber-optic communication systems by Agrawal, Govind P. Hoboken New Jersey Wiley, 2021. ISBN: 9781119737384Fiber-optic communication systems with cd by Agrawal, G. P. Wiley, 2010. ISBN: 9780470918517Photonics : optical electronics in modern communications by Yariv, Amnon. Oxford University Press, 2007. ISBN: 0195179463 Lectures 20 Practical classes & workshops 9 Tutorials 4 0 67