Resources Contact Us Home
Network with a fast-switching optical core

Image Number 18 for United States Patent #8050257.

A high capacity network comprises a plurality of edge nodes with asymmetrical connections to a plurality of switch planes, each switch plane comprising fully meshed fast-switching optical switch units. Upstream wavelength channels from each source edge node connect to different switch planes in a manner which ensures that upstream wavelength channels from any two edge nodes connect to a common switch unit in at most a predefined number, preferably one, of switch planes. Thus, switch units in different switch planes connect to upstream channels from orthogonal subsets of source edge nodes. In contrast, downstream wavelength channels from a switch unit in each switch plane connect to one set of sink edge nodes. In an alternate arrangement, the upstream and downstream asymmetry may be reversed.

  Recently Added Patents
Motilin-like peptide compound having transmucosal absorbability imparted thereto
Method of manufacturing semiconductor device and semiconductor device
Clock face
Strap-hook ring
Cake knife handle
Wound dressings
Method for carrying out a chemical reaction
  Randomly Featured Patents
Device for introducing a powder with catalytic activity into a fluidized-bed polymerization reactor
Racquet having centralized sweet spot
Data input device and display layout method for the same
Applicator for applying liquid or semi-liquid product, and applicator assembly using such an applicator
Aircraft collision sense and avoidance system and method
Pyrotechnic colour composition
Ceramic matrix composite vane seals
On-package transmit/receive switch and antenna
Hydrogen oxygen generation system for an internal combustion engine
File system quiescing