Key building blocks for high-capacity WDM photonic transport networks

Jourdan, A.; Bakhti, F.; Berthelon, L.; Bruyère, F.; Chbat, M.W.; Chiaroni, D.; Drion, C.; Eilenberger, G.; Garnot, M.; Masetti, F.; Perrier, Philippe; Renaud, M.

doi:10.1109/49.725196

Cited by 26 publications

(6 citation statements)

References 15 publications

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“…It represents a new step for the WDM deployment trends, overtaking previous visions [10][11][12]. The principle driver for the emergence of new WDM technologies is still derived from the increasing demand in terms of capacity.…”

Section: A New Framework For Optical Network Planningmentioning

confidence: 99%

Multi-Granularity Optical Networks

Blaizot¹,

Dotaro²,

Noirie³

et al. 2001

IFIP Advances in Information and Communication Technology

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Considering the telecommunication traffic boom, one can wonder if routing nodes will provide the corresponding switching capacity. Introducing Multi-Granularity Optical Networks concept, this paper gives a cost-effective solution. First, a MG-OXC architecture is proposed, then the "natural" distribution of the traffic among the granularities is presented. Finally, a Multi-Granularity planning process is described. Based on the most advantageous feature of optical technologies, the proposed approach solves the switching matrix size limitation.

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Section: A New Framework For Optical Network Planningmentioning

confidence: 99%

Multi-Granularity Optical Networks

Blaizot¹,

Dotaro²,

Noirie³

et al. 2001

IFIP Advances in Information and Communication Technology

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“…Reconfigurable optical add/drop multiplexers (ROADMs) are investigated and used [1] in WDM (Wavelength Division Multiplexing) networks, making the bandwidth usage flexible by reconfiguring lightpaths dynamically in the network. The ROADMs were introduced mainly to DWDM (dense WDM) core backbone networks by carriers, where high quality of service (QoS) is required for heavy traffic.…”

Section: Introductionmentioning

confidence: 99%

Stackable ROADM with optical amplifier for use in IP-over-CWDM networks

Nooruzzaman

Thủy

Zahilah

et al. 2011

The 17th Asia Pacific Conference on Communications

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A stackable module with a bidirectional CWDM amplifier has been proposed to introduce the optical amplifier into an S-ROADM for use in an IP-over-CWDM ring network, and the performance was evaluated experimentally. Packet transfer changes were monitored during the lightpath reconfigurations, including 2 lightpaths which needed optical amplifications. The result clarified that the lightpaths were reconfigured successfully, including the remote activation of the amplifiers. As a result, the stackable feature of the amplifier module enables us to provide the cost-effective introduction into the network on an implement-it-when-necessary based service in a fully compatible way with the existing stackable ROADM modules, when constructing the S-ROADM with an amplifier. Therefore, the amplifier module can be used in the same way as the ROADM modules to construct the S-ROADM, providing manually adding capability of the amplifier to in-service networks. Thus, the amplifier module has a big advantage to use it flexibly and economically in the IP-over-CWDM networks.

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“…Wavelength‐division multiplexing (WDM) is a key technology to increase bandwidth in the present networks and for the broadband IP (Internet protocol) transmissions in the next‐generation networks. WDM also provides the wavelength as a new dimension to be used for routing purpose [1], enabling the employment new optical node architectures for optical cross‐connect and optical add/drop multiplexing. The optical cross‐connect can increase throughputs in the nodes by PT nodes without optical–electrical conversions.…”

Section: Introductionmentioning

confidence: 99%

“…The optical cross‐connect can increase throughputs in the nodes by PT nodes without optical–electrical conversions. By adding switching functions to the optical cross‐connect, the reconfiguration capability can be achieved, and reconfigurable optical add/drop multiplexers (ROADMs) were proposed and used [1,2] for the lightpath reconfigurations in the network. The ROADMs and an IP router provide traffic engineering functions so as to utilize the bandwidths supplied by the multiple wavelengths effectively by allocating lightpaths dynamically to links among nodes.…”

Section: Introductionmentioning

confidence: 99%

Wavelength‐transparent IP‐over‐CWDM network with stackable ROADMs for best effort performance

Nooruzzaman

Kawai

Thủy

et al. 2012

IEEJ Transactions Elec Engng

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Stackable reconfigurable optical add/drop multiplexers (S‐ROADMs) have been proposed for use in IP over coarse wavelength‐division multiplexing (CWDM) networks so as to provide capabilities of remote lightpath reconfiguration and manual ROADM reconfiguration under the best effort transmission specified by the service level agreement. The S‐ROADM can be constructed by connecting modules with different wavelengths required in the node. The experimental results clarify that the S‐ROADM can add/drop or pass through the wavelengths successfully, providing no limit to the passing‐through (PT) wavelengths, that is, ensuring the wavelength transparency in the network. The S‐ROADMs could remove congestions by adding a lightpath remotely within a recovery time with degraded SLA. The transmission break time was also within the recovery time when adding a module manually to the in‐service S‐ROADM to increase bandwidth to be provided to new users. As a result, the S‐ROADMs provide more flexible CWDM networks in terms of scalability and reconfigurability. © 2012 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Key building blocks for high-capacity WDM photonic transport networks

Cited by 26 publications

References 15 publications

Multi-Granularity Optical Networks

Multi-Granularity Optical Networks

Stackable ROADM with optical amplifier for use in IP-over-CWDM networks

Wavelength‐transparent IP‐over‐CWDM network with stackable ROADMs for best effort performance

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