Heuristic Resource Optimization for Dynamic Wavelength Services on Optically Reconfigurable Networks

Zhang, Xiaolan J.; Lumetta, Steven S.; Chiu, Angela; Doverspike, Robert

doi:10.1109/icccn.2010.5560069

Cited by 2 publications

(1 citation statement)

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“…While there has been significant work on protocols to enable dynamic wavelength reconfiguration and studies have shown light-path setup times below 3 s [6][7][8], fast wavelength reconfiguration has yet to be implemented at scale in commercial networks. A key unresolved obstacle to implementation is the channel power excursions that arise and propagate throughout a network due to changing channel wavelength configurations in an automatic gain controlled (AGC) optically amplified system [9].…”

Section: Introductionmentioning

confidence: 99%

Excursion-Free Dynamic Wavelength Switching in Amplified Optical Networks

Ahsan

Browning

Wang

et al. 2015

J. Opt. Commun. Netw.

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Dynamic optical networking with rapid wavelength reconfiguration is a promising capability to support the heterogeneous, bursty traffic rapidly growing in metroarea networks. A major obstacle to realizing dynamicity in the optical layer is the channel power excursions that occur due to continuously changing input conditions into gain controlled optical amplifiers. Here we present a technique of distributing an optical signal across multiple wavelengths chosen to reduce or cancel the power dynamics so that excursion-free switching can be achieved in an optically amplified transparent network. The use of variable wavelength dwell times for excursion-free switching using arbitrary wavelength pairs is presented. Spectral efficiency lost in utilizing multiple wavelengths is recovered through time-division multiplexing two signals distributed over the same wavelengths.

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