Multipassive-star-coupler hub for metro WDM networks

Yiu Wing LEUNG*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

2 Citations (Scopus)


We consider a metro wavelength-division-multiplexing network in which a hub connects the local networks to the backbone network. In many recent studies, the hub is made up of an arrayed waveguide grating (AWG). In this letter, we use multiple passive star couplers (PSCs) to construct the hub and allocate wavelength channels to its input-output pairs based on the traffic requirements. The resulting hub, called the multipassive-star-coupler hub or multi-PSC hub, can provide the same communication functions as AWG hubs and two additional functions: 1) it can efficiently transport nonuniform metro traffic via nonuniform channel allocation within the hub and 2) it can easily be scaled up by adding more PSCs for handling the ever-increasing traffic load.

Original languageEnglish
Pages (from-to)1621-1623
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number15
Publication statusPublished - 1 Aug 2006

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Arrayed waveguide grating (AWG)
  • Metro network
  • Passive star coupler (PSC)
  • Wavelength-division multiplexing (WDM)


Dive into the research topics of 'Multipassive-star-coupler hub for metro WDM networks'. Together they form a unique fingerprint.

Cite this