| 摘要 |
The invention provides an optical communication system ( 10 ) comprising a plurality of mutually interconnected bi-directional optical waveguide rings ( 20, 30, 40, 50, 60 ) in which radiation modulated with communication traffic propagates. The radiation is partitioned into 32 distinct wavebands. Interfaces ( 70, 80, 90, 100, 110, 120 ) are included in the system ( 10 ) where communication traffic propagating in the rings transfers from one ring to another. Each interface ( 70 ) is capable of providing an all-optical waveband reconfigurable communication link between the rings ( 20, 30, 40, 50, 60 ). At each interface ( 70 ), conversion of optical radiation to corresponding electrical signals is not required when transferring communication traffic from one ring to another, thereby providing the system ( 10 ) with a potentially larger communication bandwidth compared to conventional optical communication systems. If required, the interfaces ( 70, 80, 90, 100, 110, 120 ) can include one or more of regenerative amplification ( 440, 850, 852, 854, 856, 858, 860, 862, 864 ) and wavelength-switching transponders ( 1332, 1410 ).
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