This paper addresses the problem of providing QoS management for optical packet switch. In particular we propose the Simple Prioritized Buffering Algorithm (SPBA) for prioritized buffer’s management, which aims to guarantee different packet loss probabilities to different packet streams. In contrast to other solutions, SPBA does not need any resource reservation or threshold dropping, but only ...

Optical buffering based on fiber delay lines (FDLs) has been proposed as a means for contention resolution in an optical packet switch. In this article, we propose a queuing model for feedback-type shared-per-node recirculating FDL optical buffers in asynchronous optical switching nodes. In this model, optical packets are allowed to recirculate over FDLs as long as the total number of recircula...

A hybrid electronic/optical packet switch consists of electronically buffered line-cards interconnected by an optical switch fabric. It provides a scalable switch architecture for next generation high-speed routers. Due to the non-negligible switch reconfiguration overhead, many packet scheduling algorithms are invented to ensure performance guaranteed switching (i.e. 100% throughput with bound...

We demonstrated a 1×4 all-optical packet switch using injection-locking in a FabryPerot laser diode for all-optical header processing and cross gain modulation in an SOA for packet switching. 2004 Optical Society of America OCIS codes: (230.1150) All-optical devices; (190.1450) Bistability; (140.3520) Lasers, injection-locked

Packet switches switch data packets from a given ingress port to an egress port determined by information in the packet header. Asynchronous packet switches (Figure 1) don’t assume synchronisation between arrivals of packets on different ingress ports, and don’t attempt to synchronise the forwarding of packets to the egress ports. This type of packet switch is being investigated for high-speed ...

We present a multifunctional photonic switch that monolithically integrates an InGaAsP/InP quantum well electroabsorption modulator and an InGaAs photodiode as a part of an on-chip, InP optoelectronic circuit. The optical multifunctionality of the switch offers many configurations to allow for different optical network functions on a single chip. Here we experimentally demonstrate GHz-range opt...

We demonstrate an optical time-to-live (TTL) decrementing module for optical packet-switched networks. Our module acts on a standard NRZ-modulated binary TTL field within a 10 Gb/s packet and decrements it by one if the TTL is nonzero. If the TTL of the incoming packet is zero, the module signals an optical switch to drop the packet. Our technique is independent of the TTL length, does not requ...

We demonstrate for the first time a field trial of 80 (10 x 8) Gbps colored optical packet switching of 4K and 2K uncompressed streaming using SOA based broadcast-and-select switch and optical-code label processing. Introduction “4K” motion pictures (3840x2160 pixels), 4 times pixel counts of high-definition (HD), are promising imaging technology for digital cinema, computer visualization, and...

 This work is based on the optical switch architecture proposed in [5][6] to handle variable-length packets such as IP datagrams. This optical switch is based on an AWG device to route packets and is equipped with a fiber delay-line stage as optical input buffer. Unfortunately, this switch would require considerable buffering capability to achieve acceptable performance. A possible solution, s...