Transparent photonic switch architectures for optical communication networks
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United States of America Patent
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Issued Date -
Dec 12, 2002
app pub date -
May 8, 2002
filing date -
Jun 8, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A n.times.n transparent photonic switch TPS for an optical communication network uses wavelength selective elements connected in the switch fabric, to allow channels to pass, or to block channels from passing according to a network-wide routing connectivity data. The WSE may be a two-port blocker, in which case all input and output ports of the TPS are provided with 1:(n-1) splitters/combiners for providing internal routes between all pairs of input I(i) and output O(j) ports. The WSE may be assembled using wavelength selective switches WSS, or combinations of WSSs, splitters/combiners and circulators.
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