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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1988),
  • paper TUK5

Optical time-division multiplexing for very high-bit-rate systems

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Abstract

The trend toward hlgher bit rates in lightwave systems puts an increasing emphasis on the need for high-bandwidth drive electronics. At Gbit/s data rates, it becomes increasingly difficult to develop electronic drive circuits which do not degrade system performance. One approach to relieving this electronic speed bottleneok is to time multiplex a number of lower bit-rate signals in the optical domain rather than the electrical domain. The potential of optical time-division muitiplexing (OTDM) and demultipiexing has been recognized for more than a decade,1 but until recently there have been few practical demonstrations of the technique. This has been due to a lack of hlgh-speed optical switches and high-repetition-rate short optical pulse streams, The recent advent of very high-speed Ti:LiNbO3 waveguide switch/modulators2 and high-repetition-rate optical pulse trains from semiconductor lasers has enabled viable system demonstrations to be carried out.3,4

© 1988 Optical Society of America

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