Network and system concepts for optical packet switching

Renaud, M.; Masetti, F.; Guillemot, C.; Bostica, B.

doi:10.1109/35.570725

Cited by 95 publications

(49 citation statements)

References 6 publications

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“…The code we used was a 7-chip-long phase-shift keyed pseudorandom sequence with a chip rate of 160 Gchip/s. We believe this technique offers tremendous possibilities for practical passive pattern generation/recognition, as required in OCDMA systems and packet-switched networks [13]. Any practical system will, of course, require longer codes in order to accommodate more users, and we are currently actively investigating this issue.…”

Section: Discussionmentioning

confidence: 99%

Phase encoding and decoding of short pulses at 10 Gb/s using superstructured fiber Bragg gratings

Teh

Petropoulos

Ibsen

et al. 2001

IEEE Photon. Technol. Lett.

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Section: Discussionmentioning

confidence: 99%

Phase encoding and decoding of short pulses at 10 Gb/s using superstructured fiber Bragg gratings

Teh

Petropoulos

Ibsen

et al. 2001

IEEE Photon. Technol. Lett.

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“…N the quest toward high-capacity data networks, all-optical packet switching is set to provide a path for the deployment of more efficient transport networks, offering a variety of optical services in an affordable way [1]- [3]. For optical packet switching, the optical layer must be transformed from a static transmission medium to a dynamically reconfigurable facility.…”

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confidence: 99%

An alternative implementation perspective for the scheduling switch architecture

Theophilopoulos

Kalyvas²,

Yiannopoulos³

et al. 2005

J. Lightwave Technol.

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Abstract-In this paper, a novel configuration is proposed for the implementation of an almost all-optical switch architecture called the scheduling switch, which when combined with appropriate wait-for-reservation or tell-and-go connection and flow control protocols provides lossless communication for traffic that satisfies certain smoothness properties. An all-optical 2 2 exchange/bypass (E/B) switch based on the nonlinear operation of a semiconductor optical amplifier (SOA) is considered as the basic building block of the scheduling switch as opposed to active SOA-based space switches that use injection current to switch between ON and OFF states. The experimental demonstration of the optically addressable 2 2 E/B, which is summarized for 10-Gb/s data packets as well as synchronous digital hierarchy (SDH)/STM-64 data frames, ensures the feasibility of the proposed configuration at high speeds, with low switching energy and low losses during the scheduling process. In addition, it provides reduction of the number of required components for the construction of the scheduling switch, which is calculated to be 50% in the number of active elements and 33% in the fiber length.Index Terms-All-optical packet switching, all-optical signal processing, exchange/bypass (E/B) switch, lossless communication, scheduling switch architecture, semiconductor optical amplifier (SOA), ultrafast nonlinear interferometer.

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“…This is in contrast to time-division-multiplexed (TDM) circuit switches that assume regular, periodic traffic, and fixed allocation of packet slots to circuits. Several innovative packet switch architectures have been proposed so far, including switches with recirculating loops [5], the staggering switch [7], the switch with large optical buffers (SLOB) [8], the wavelength routing switch and the broadcast (WRS), and select switch (BSS) [9]. However, work on new architectural concepts, node performance, and intelligent control have lagged behind progress in transmission speeds.…”

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confidence: 99%

An optical IM/FSK coding technique for the implementation of a label-controlled arrayed waveguide packet router

Vlachos¹,

Zhang²,

Cheyns³

et al. 2003

J. Lightwave Technol.

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Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers) Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract-In this paper, we present a new concept of optical packet/burst switching suitable for generalized multiprotocol label switched (GMPLS)-based optical networks. In such networks, optical labeled switched Paths are being established in a similar way as label-switched paths in MPLS. We use a wavelength label as well as an orthogonally modulated label, with respect to the payload modulation format, and which is encoded using either frequency-shift keying (FSK) or differential phase-shift keying (DPSK). Wavelength is used for switching in the node, whereas the orthogonal label defines the label-switched path. We present both simulation and experimental results to assess transmission performance of the proposed combined modulation scheme. In addition, we propose a suitable optical node architecture that can take advantage of this stacked label concept. Toward this, we use widely tunable wavelength converters to efficiently route IM/FSK (or IM/DPSK) optically labeled packets in an arrayed-waveguide grating (AWG)-based node structure. We present performance simulation results in terms of packet loss ratio and internal block probability. Internal blocking is an inherent problem of AWG optical routers, and a specific wavelength assignment algorithm has been developed to minimize it. Finally, the feasibility of IM/FSK transmission is experimentally demonstrated over an 88-km single-mode fiber span, and novel aspects of FSK generation and detection techniques are presented.Index T...

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Network and system concepts for optical packet switching

Cited by 95 publications

References 6 publications

Phase encoding and decoding of short pulses at 10 Gb/s using superstructured fiber Bragg gratings

Phase encoding and decoding of short pulses at 10 Gb/s using superstructured fiber Bragg gratings

An alternative implementation perspective for the scheduling switch architecture

An optical IM/FSK coding technique for the implementation of a label-controlled arrayed waveguide packet router

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