Demonstration of a complete 12-port Terabit capacity optical packet switching fabric

A wide-band photonic packet injection control module for optical packet switching routers

“…1). The packets are encoded in the data vortex multiple-wavelength format [5], [14] where every packet is marked by an optical signal called frame, encoded on a dedicated wavelength, which remains constant for the entire duration of the packet. Other wavelengths are simultaneously encoded with address information required to route the packet in the switching fabric, and with the packet payload, segmented and encoded on multiple wavelengths.…”

“…This simple extraction and detection scheme using wavelength filters and slow photodetectors, facilitated by the wavelength-parallel structure [14], eliminates the need for complex header recovery circuitry. The resulting signals are then forwarded to the electronic control circuit implemented using a Xilinx complex programmable logic device (CPLD).…”

The Data Vortex, an All Optical Path Multicomputer Interconnection Network

“…The Data Vortex architecture has been implemented on numerous occasions with contemporary fiber optic components in a laboratory setting [7], [8], [9], [10], [11], [23], [24], [25], [26]. It is envisioned that similar components would be used in a commercial implementation of the switching fabric.…”

“…In order to accomplish the aforementioned routing and deflection functionality, an individual switching node must process the following pseudocode routing logic, given its coordinates (a, c, h): Practically, nodes are simply physically encoded with their b values or a values, regardless of c and h. In network implementations, the header information is actually transmitted optically, simultaneously with the packet payload, using a unique multiple-wavelength bit-parallel encoding scheme [14], [25], [26], [27]. This allows header bits to be separated from the rest of the packet with conventional fiberoptic wavelength filters for detection and conversion to electrical signals which can be used for the routing logic.…”

“…Historically, in implemented systems and subsystems [6], [7], [8], [9], [10], [11], [23], [24], [25], [26], all angles have been used for injection, and angle-resolution routing has been used. However, the size and cost of these laboratory systems made increasing A more feasible than increasing H. Past simulations have considered both injection and addressing approaches [6], [15], and the current work extensively discusses single-angle injection Data Vortex networks.…”