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#Mon Aug 09 12:03:52 CEST 2010
Text__TckRYKOdEd-WfYQ0GneCwQ_title=Congestions at the data highway ...
Text__TckRYKOdEd-WfYQ0GneCwQ_text=... appear for example due to the time consuming transformation from optical into electrical and back into optical signals. <p><p></p></p>These processes have been much reduced since the invention of optical switches. <p><p></p></p>Technical precondition is the fact that the translucence of optical semiconductors may be controlled in dependence of the frequency.