Optical Modulation Methods for High-Speed Networks and the Consequences for Test Equipment

摘要

A range of newly developed fundamental communications technologies must be employed in order to reliably transmit signals of 40/43 Gbit/s and even 100Gbit/s in the near future using telecommunications networks. One of these technologies involves the use of higher-level modulation methods on the optical side, similar to those which have been used for many years successfully on the electrical side in xDSL broadband access technology, for example.