A modulation format is necessary to suit the information to a form that can be transmitted over an optical fibre. In addition, achieving high bit rates and significant information capacities of transmission systems is associated with the use of appropriate modulation formats. Every modulation performs in a different way and is suitable for different transmission scenario. For this reason, it is necessary to familiarize students with principles of advanced modulation formats, which are part of any optimization processes within modern high-speed optical transmission networks.
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