The components of optical communications

Autor: Barry Elliott
Rok vydání: 2021
Předmět:
Zdroj: Optical Communication ISBN: 9780735423046
Optical Communication
DOI: 10.1063/9780735423077_009
Popis: We have encountered many of the components of optical communications in earlier chapters. In Chapter 3 we encountered Faraday isolators; in Chapter 4 diffraction gratings which are used in wavelength division multiplexing devices, in Chapter 5 GRIN and Fresnel lenses plus splitters and couplers. In Chapter 6 we looked at the active components of LEDs and lasers and in Chapter 8 we looked at optical fibres. In this chapter we will consider some of the other optical components that are essential to a practical and working optical communication system. There are optical connectors and splices, patch panels and cables and an essential device called an Erbium Doped Fibre Amplifier, or EDFA for short. EDFAs, isolators/circulators, Bragg gratings and MEMs, Micro-Electro Mechanical Systems, all contribute to the essential requirement of wavelength division multiplexing, but without the accompanying array of connectors, splices and cables the optical communication system would not be complete or usable.
Databáze: OpenAIRE
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