Semiconductor-based modulators

Hiroshi Yasaka, Yasuo Shibata

Research output: Chapter in Book/Report/Conference proceedingChapter


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.

Original languageEnglish
Title of host publicationFibre Optic Communication
Subtitle of host publicationKey Devices
PublisherSpringer Verlag
Number of pages53
ISBN (Print)9783642205163
Publication statusPublished - 2012

Publication series

NameSpringer Series in Optical Sciences
ISSN (Print)0342-4111
ISSN (Electronic)1556-1534

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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