H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 3/52 (2006.01) H04J 14/02 (2006.01) H04Q 11/00 (2006.01)
Patent
CA 2292942
It is described an optical cross-connect for the switching of optical channels at variable bit-rate (up to 10 Gbit/s), wavelength division multiplexed on bi-directional optical fibres forming the transmission backbone of a transport network; in particular the cross-connect can be interfaced to fibres crossing the nodes of a ring having large territorial extension, provided with protection fibres. The cross-connect includes a spatial Split & Select input stage of WDM aggregates, followed by a set of channel filters tunable on the whole optical range occupied by the channels, which jointly form a structure strictly not blocking the access to the channels by a set of bridge units whose functionality is selectable on a per-channel basis, such as for instance: transit, drop/insert, regeneration, etc. An output optical spatial Split & Select stage connects in a strictly non-blocking way the single channels from bridge units to optical multiplexers that reconstruct the WDM aggregate on the output fibres. The duplicated architecture of the bridge units for the protection fibres enables the protection of each single local drop/insert channel
Brunazzi Stefano
Rotolo Salvatore
Brunazzi Stefano
Cnx S.p.a.
Robic
Rotolo Salvatore
Stmicroelectronics S.r.l.
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