227-0301-00L Optical Communication Fundamentals
|Semester||Autumn Semester 2014|
|Periodicity||yearly recurring course|
|Language of instruction||English|
|Abstract||Transmitters and receivers are the basic building blocks of communication links. In this lecture we discuss the path of an analog signal in the transmitter to the digital world in an optical communication link and back to the analog world at the receiver. The lecture is organized to cover the fundamentals of all important optical and optoelectronic components in a fiber communications system.|
|Objective||Fundamentals of optical communications systems with an emphasis on transmitters and receivers.|
|Content||Chapter 1: Introduction: Analog/Digital Conversion, The Communication Channel, Shannon Channel Capacity.|
Chapter 2: The Transmitter: Components of a Transmitter, The Spectrum of a Signal, Optical Modulators, Modulation Formats.
Chapter 3: Signal-to-Noise Ratio, Intersymbol Interference, Electronic Coding.
Chapter 4: Multiplexing techniques (WDM/FDM, TDM, OFDM, Nyquist Multiplexing, OCDMA).
Chapter 5: Optical Amplifiers (Semiconductor Optical Amplifiers, Erbium Doped Fiber Amplifiers, Raman Amplifiers).
Chapter 6: The Receiver: pin-Photodiodes, Polarisation Demultiplexing, Phase Estimation, Clock Recovery.
Chapter 7: Noise: Noise Mechanisms, Photocurrent Noise, Thermal Noise, Electronic Amplifiers Noise, Optical Amplifier Noise.
Chapter 8: Receiver and Detector Errors: Detection Errors of On-Off Keying, Detection Errors of M-Ary Signals, Direct-, Heterodyne and Homodyne Reception.
|Lecture notes||Lecture notes are handed out.|
|Prerequisites / Notice||Fundamentals of Electromagnetic Fields & Bachelor Lectures on Physics (see Bsc ITET).|