Abstract
The chapter starts with a comparison of methods to generate digital optical signals: direct laser modulation, electroabsorption and Mach–Zehnder interferometer modulators. Next follows an in-depth treatment of physical effects which are utilized for semiconductor-based modulators (Plasma, Franz–Keldysh, quantumconfined Stark, and electro-optic (Pockels) effect), and their exploitation for In Pand Ga As-based modulators with specific emphasis on aspects of high-speed modulator design. Modulator characteristics including eye diagrams obtained for different implementations and various operation conditions illustrate the current stateof- the-art, and the chapter concludes with a section on modulators for higher order modulation formats.
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Yasaka, H., Shibata, Y. (2012). Semiconductor-based Modulators. In: Venghaus, H., Grote, N. (eds) Fibre Optic Communication. Springer Series in Optical Sciences, vol 161. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20517-0_6
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