A secure WDM ring access network employing silicon micro-ring based remote node

Jiun Yu Sung, Chi Wai Chow, Chien Hung Yeh*, Ke Xu, Chin Wei Hsu, Hong Quan Su, Hon Ki Tsang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A secure and scalable wavelength-division-multiplexing (WDM) ring-based access network is proposed and demonstrated using proof-of-concept experiments. In the remote node (RN), wavelength hopping for specific optical networking unit (ONU) is deployed by using silicon micro-ring resonators (SMR). Using silicon-based devices could be cost-effective for the cost-sensitive access network. Hence the optical physical layer security is introduced. The issues of denial of service (DOS) attacks, eavesdropping and masquerading can be made more difficult in the proposed WDM ring-based access network. Besides, the SMRs with different dropped wavelengths can be cascaded, such that the signals pass through the preceding SMRs can be dropped by a succeeding SMR. This can increase the scalability of the RN for supporting more ONUs for future upgrade. Here, error-free 10 Gb/s downlink and 1.25 Gb/s uplink transmission are demonstrated to show the feasibility of the proposed network.

Original languageEnglish
Pages (from-to)336-340
Number of pages5
JournalOptical Fiber Technology
Issue number4
StatePublished - 1 Jan 2014


  • Silicon micro-ring resonator
  • WDM access
  • Wavelength hopping

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