Amplifier placement in metro-scaled wavelength-routed network

Rocha, Maria Eliane Merlin; Rossi, Sandro; Barros, M.R.X. de; Pezzolo, L.; Rosolem, J.B.; Oliveira, Marcelo Falção de; Paradisi, A.; Kauppinen, Tanja; Gavler, Anders

doi:10.1049/el:20030149

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…Metro networks in larger cities may consist of two layers -metro access networks which connect the local exchange to individual subscribers, and the metro core networks having several nodes, that connect the local exchanges with each other and link them to the long-haul backbone network. In spite of the shorter distances involved (~ 200 km or less), the use of wideband amplifiers becomes necessary because of the large number of signal channels and the many add/drop nodes within the ring, which may increase the effective distance travelled by the signal [4,5]. Due to the different topology of metro networks viz-a-viz long-haul, the lower level of gain required [6], coupled with higher tolerances, it is possible to explore different options for signal amplification.…”

Section: Gain-flattening With Coaxial Dual-core Edfamentioning

confidence: 99%

Intrinsically gain-flattened Erbium-doped fiber amplifier for metro networks

Pande¹

2022

AJP

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Section: Gain-flattening With Coaxial Dual-core Edfamentioning

confidence: 99%

Intrinsically gain-flattened Erbium-doped fiber amplifier for metro networks

Pande¹

2022

AJP

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“…Other schemes such as OBS can implement its basic model using present technology, but the implementation of a high-performance model also requires technologies similar to that of OPS. On the other hand, most of the required technologies for WR networks are already available [18][19][20]. WR networks are likely to be the dominant optical network infrastructure in the near future.…”

Section: Introductionmentioning

confidence: 99%

Wavelength-Routed Networks With Lightpath Data Interchanges

Li¹,

Cai

Wai³

et al. 2010

J. Opt. Commun. Netw.

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Abstract-We observe that tunable wavelength converters (TWCs) that are traditionally installed in wavelength-routed (WR) networks for wavelength contention resolution can be further utilized to provide fast data switching between lightpaths. This allows us to route a data unit through a sequence of lightpaths from source to destination if a direct single lightpath connection is not available or if we want to minimize the overhead of setting up new lightpaths. Since TWCs have a tuning time of picoseconds, it may be possible to use the installed TWCs as lightpath data interchanges (LPIs) to improve the performance of WR networks without significant optical hardware upgrade. Compared with the multihop electronic grooming approach of lightpath networks, the LPI approach has a simpler WR node architecture, does not need expensive high-speed electrical multiplexersÕrouters, and does not sacrifice the bitrateÕformat transparency of data between the source and destination. Our simulation results show that WR networks with LPIs can have much lower blocking probability than WR networks without LPIs if the traffic duration is short. We show that LPIs can also be used to provide new data transportation services such as optical time division multiplexing access (OT-DMA) time-slotted service in WR networks.

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