Demonstration of load-balancing operation based on hitless dynamic wavelength allocation on symmetric 40-Gbit/s λ-tunable WDM/TDM-PON

Shin Kaneko, Tomoaki Yoshida, Satoshi Furusawa, Masahiro Sarashina, Hideaki Tamai, Akiya Suzuki, Toshiaki Mukojima, Shunji Kimura, Naoto Yoshimoto

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

This paper reports the world-first system-level demonstration of dynamic wavelength allocation (DWA) on a wavelength-tunable (λ-tunable) wavelength division multiplexing/time division multiplexing-passive optical network (WDM/TDM-PON). To achieve DWA, a DWA calculation is necessary that determines new optical network unit assignments to the optical line terminal ports according to the bandwidth demand. In addition, a wavelength-tuning (λ-tuning) sequence that induces no data-frame loss, i.e., a hitless λ-tuning sequence, is essential. First, we propose a bidirectional hitless λ-tuning sequence and investigate its feasibility using media access control boards that we developed for symmetric 40-Gbit/s λ-tunable WDM/TDM-PONs, which are also the world's first. Then, with a DWA calculation according to the downstream traffic loads, we show automatic dynamic load-balancing operation.

Original languageEnglish
Article number6879241
Pages (from-to)645-652
Number of pages8
JournalJournal of Lightwave Technology
Volume33
Issue number3
DOIs
Publication statusPublished - Feb 1 2015
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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