Abstract:
A hybrid optical electronic mapper-shuffler-reducer structure is presented to enhance the interconnection of current multi-dimensional direct networks. The physically intrinsic multicast design of the hybrid optical electronic mapper-shuffler-reducer structure of the present disclosure naturally supports parallel traffic modes such as multicast, broadcast and newly developed incast, while easily supporting point-to-point traffic. By scaling up this architecture, using a simple multi-dimensional topology, a remarkably massive network can be achieved with only 3 hops end-to-end latency. Compared to other multi-dimensional direct networks, the latency is substantially improved and is also made more uniform.
Abstract:
The present disclosure relates to data center architectures that implement high density connectors, low density connectors and/or combinations of high and low density connectors directly into endpoint network devices, such as servers, storage devices and any other endpoint network devices, as well as network interface cards that may be plugged into such data center endpoint network devices, thus simplifying cable interconnections between endpoint destinations and intermediary interconnect panels and cross connect panels, as well as to reducing the number of switches required within the data center network.
Abstract:
An optical switching system is described. The system includes a plurality of interconnected wavelength selective switching units. Each of the wavelength selective switching units is associated with one or more server racks. The interconnected wavelength selective switching units are arranged into a fixed structure high-dimensional interconnect architecture comprising a plurality of fixed and structured optical links. The optical links are arranged in a k-ary n-cube, ring, mesh, torus, direct binary n-cube, indirect binary n-cube, Omega network or hypercube architecture.
Abstract:
Crosstalk can be suppressed in photonic switching fabrics by activating unused photonic elements in a manner that manipulates the inactive connections and inhibits the propagation of cross-talk over the switching fabric. For example, unused photonic elements can be set to a cross or bar configuration to block first and second order crosstalk from propagating to the output ports, thereby reducing noise in the output signals. All of the unused elements can be activated in order to maximize crosstalk suppression. Alternatively, fewer than all of the unused elements may be activated to achieve a balance between crosstalk suppression and power conservation. Photonic switch architectures can be configured to use pre-determined cross-talk suppression maps (e.g., patterns of activated unused cells) for the various switching configurations, which may be computed using a recursive algorithm.
Abstract:
An example embodiment of the present invention is a non-blocking wavelength switching architecture that enables graceful scaling of a network wavelength switching node from small to large fiber counts using fixed size bidirectional 1xN Wavelength Selective Switches (WSS). The architecture uses an intermediate broadcast and select layer implemented using optical splitters and WSSs to eliminate wavelength blocking.
Abstract:
In general, techniques are described for automatically configuring fiber cross-connects between customers of an interconnection facility. In some examples, a programmable network platform for an interconnection facility exposes an interface by which customers of the interconnection system provider may request fiber cross-connects to other customers of the interconnection system provider. The programmable network platform may, in response to a request for a fiber cross-connect, configure an optical switch fabric of the interconnection facility network infrastructure to create a fiber cross-connect between the demarcation points for the customers to be interconnected.
Abstract:
An all-optical contention manager (94) comprising at least two inputs and at least two outputs, the outputs being arranged to pass signals to a Banyan switch (126), the contention manager (94) being arranged to detect and resolve routing contentions between incoming optical signals (98) prior to outputting the signals, the signals comprising tags (100) containing routing information wherein the contention manager comprises at least one photonic comparator for comparing tags from incoming optical signals in order to detect contention, wherein the photonic comparator comprises a semiconductor optical amplifier arranged to carry out signal processing entirely optically.
Abstract:
An example embodiment of the present invention is a non-blocking wavelength switching architecture that enables graceful scaling of a network wavelength switching node from small to large fiber counts using fixed size bidirectional 1xN Wavelength Selective Switches (WSS). The architecture uses an intermediate broadcast and select layer implemented using optical splitters and WSSs to eliminate wavelength blocking.