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

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3 Author(s)
Tucker, RodneyS. ; AT&T Bell Lab., Holmdel, NJ, USA ; Eisenstein, G. ; Korotky, S.K.

Optical time-division multiplexing (OTDM) extends and expands the well-known techniques of electrical time-division multiplexing into the optical domain. In OTDM, optical data streams are constructed by time-multiplexing a number of lower-bit-rate optical streams. Opportunities for very high-speed transmission and switching are created by removing limitations set by the restricted bandwidth of electronics and by capitalizing on the inherent high-speed characteristics of optical devices. An overview of recent work in optical time-division multiplexing and demultiplexing is presented. Design considerations affecting system architecture are described. Emphasis on the factors that limit system performance, such as crosstalk between multiplexed channels. Examples of very high bit-rate optical time-division multiplexed system experiments using short pulses from mode-locked semiconductor lasers and high-speed Ti:LiNbO3 waveguide switch/modulators are presented

Published in:

Lightwave Technology, Journal of  (Volume:6 ,  Issue: 11 )