All-optical packet address and payload separation

Bintjas, C.; Pleros, Nikos; Yiannopoulos, K.; Theophilopoulos, G.; Kalyvas, M.; Avramopoulos, H.; Guekos, G.

doi:10.1109/lpt.2002.804654

Cited by 72 publications

(34 citation statements)

References 11 publications

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“…Two preamble bits are also included at the start of each tag to assist the clock recovery process in each hop. Further, singlebit guardbands are inserted between each tag and payload as required by the all-optical tag extraction subsystem [18]. In order to investigate the cascadeability of the approach, the switching matrix was assumed to be a strictly nonblocking 8 × 8 switch, where the optical packet propagates through three cascaded 1 × 2 optical switching elements.…”

Section: A Artemis Packet Format and Guardbands Requiredmentioning

confidence: 99%

“…6. The incoming optical packet and the recovered packet clock stream enter the tag extraction gate that consists of an SOA-MZI gate configured as a Boolean AND gate [18]. The temporal synchronization of the two signals is such that the first optical tag (tag #1) lies outside the switching window defined by the recovered packet clock.…”

Section: All-optical Header-processing/forwarding Planementioning

confidence: 99%

“…These optical logic elements are suitable for a high-speed signal processing and they have already been established as the fundamental building blocks of all-optical switching nodes [11]. In this context, all-optical gates have been used as core elements performing a diversity of network functionalities, such as wavelength conversion [12], data regeneration [13], [14], clock recovery [15], [16], header from payload separation [17], [18], header matching [7], and data recovery [19].…”

mentioning

confidence: 99%

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ARTEMIS: 40-gb/s all-optical self-routing node and network architecture employing asynchronous bit and packet-level optical signal processing

Kehayas

Vyrsokinos

Stampoulidis

et al. 2006

J. Lightwave Technol.

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Abstract-A 40-Gb/s asynchronous self-routing network and node architecture that exploits bit and packet level optical signal processing to perform synchronization, forwarding, and switching in the optical domain is presented. Optical packets are self-routed on a hop-by-hop basis through the network by using stacked optical tags, each representing a specific optical node. Each tag contains necessary control signals for configuring the node-switching matrix and forwarding each packet to the appropriate outgoing link and onto the next hop. In order to investigate the feasibility of their approach physical-layer simulations are performed, modeling each optical subsystem of the node showing acceptable signal quality and end-to-end bit error rates. In the All-optical selfRouTer EMploying bIt and packet-level procesSing (ARTEMIS) control plane, a timed/delayed resource reservation-based signaling scheme is employed combined with a load-balancing feedbackbased contention-avoidance mechanism that can guarantee a high performance in terms of blocking probability and end-toend delay.Index Terms-All-optical logic gate, all-optical signal processing, asynchronous traffic, feedback-based protocols, optical-burst switching (OBS), optical packet switching, self-routing, semiconductor optical amplifier (SOA), timed/delayed reservation.

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Section: A Artemis Packet Format and Guardbands Requiredmentioning

confidence: 99%

Section: All-optical Header-processing/forwarding Planementioning

confidence: 99%

mentioning

confidence: 99%

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ARTEMIS: 40-gb/s all-optical self-routing node and network architecture employing asynchronous bit and packet-level optical signal processing

Kehayas

Vyrsokinos

Stampoulidis

et al. 2006

J. Lightwave Technol.

Self Cite

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“…The input label is extracted by means of a label extraction circuit and processed at the XOR-based DGD monitor in order to estimate the PMD introduced by the fiber. The subsystem responsible for separating the label from the payload is based on a packet clock recovery circuit and an additional high-speed SOA-MZI optical gate configured to perform a simple Boolean AND operation [Bin02]. This subsystem was explained in more detail in Chapter 3.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…From now on, let us suppose that packet switching nodes have the capability of detecting the position of the packet for synchronization issues. As an example, in Chapter 3 it has been presented how the packet node can recover the packet clock and extract the monitoring-field [Bin02].…”

Section: Synchronization Issuesmentioning

confidence: 99%

Optical performance monitoring in optical packet-switched networks

Vilar¹

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All‐optical multi‐wavelength header recognition using superimposed Bragg gratings based correlators

Golmohammadi

Nejad

Abbasian

et al. 2012

Int J Numerical Modelling

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SUMMARY We have demonstrated that an optical correlator, based on superimposed Bragg gratings, can be used as all‐optical multi‐wavelength header recognition in optical packet switching networks. The proposed correlator is composed of two superimposed gratings in conjunction with variable delay lines. These superimposed Bragg gratings are used to demultiplex and multiplex the wavelength components of multi‐wavelength header bit patterns. The variable delay lines create a wavelength profile that can be matched with any arbitrary bit patterns. Simulation results for all optical recognition of four‐bit patterns at 10 Gbps are reported. The results show that when the header bit pattern matches the wavelength profile of the correlator, the generated auto‐correlation function will include a high amplitude peak; otherwise, a cross‐correlation function with low amplitude peaks will be generated in the output of the correlator. Considering this idea, multi‐wavelength header is recognized by using all‐optical processing method. Copyright © 2012 John Wiley & Sons, Ltd.

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All-optical packet address and payload separation

Cited by 72 publications

References 11 publications

ARTEMIS: 40-gb/s all-optical self-routing node and network architecture employing asynchronous bit and packet-level optical signal processing

ARTEMIS: 40-gb/s all-optical self-routing node and network architecture employing asynchronous bit and packet-level optical signal processing

Optical performance monitoring in optical packet-switched networks

All‐optical multi‐wavelength header recognition using superimposed Bragg gratings based correlators

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