A Modular, Scalable, Extensible, and Transparent Optical Packet Buffer

Abstract

Abstract-We introduce a novel optical packet switching buffer architecture that is composed of multiple building-block modules, allowing for a large degree of scalability. The buffer supports independent and simultaneous read and write processes without packet rejection or misordering and can be considered a fully functional packet buffer. It can easily be programmed to support two prioritization schemes: first-in first-out (FIFO) and last-in first-out (LIFO). Because the system leverages semiconductor optical amplifiers as switching elements, wideband packets can be routed transparently. The operation of the system is discussed with illustrative packet sequences, which are then verified on an actual implementation composed of conventional fiber-optic componentry.

Interface Optical Buffer and Packet-Switched Network Cross-Layer Signaling Demonstration

“…We have recently presented a modular optical packet buffer architecture and have demonstrated its reconfigurability and flexibility with respect to network performance through the implementation of active queue management [3][4][5]. In this work, the basic buffer architecture is adapted to realize the functionality of a network interface packet injection control to an implemented OPS network.…”

Cross-Layer Communication With an Optical Packet Switched Network via a Message Injection Control Interface

“…In the case of unsuccessful message transmission, the input buffer can reattempt network injection with the copy of the message stored in the queue. An optical packet buffer architecture has been previously presented [3], [4]. Furthermore, the architecture's flexibility and reconfigurability with respect to network congestion control has been shown via the demonstration of active queue management [5], [6].…”

All-optical queue buf fer using optical threshold functions and wavelength converters

“…6. The SOA-based OTF [8] is combined by two SOA fiber ring lasers. The output of the master laser is coupling into slave laser through two optical couplers (OCs) and an isolator (ISO).…”