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Optical Engineering

Wavelength division multiplexed add/drop ring technology in corporate backbone networks
Author(s): Gian-Luca Bona; Wolfgang Denzel; Bert J. Offrein; Roland Germann; Huub W. Salemink; Folkert Horst
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Paper Abstract

The Corporate Optical Backbone Network (COBNET) project is a joint research project within the ACTS program of the European Commission. The COBNET consortium is considering the use of advanced optical networking technologies for the backbones of future corporate networks. In particular, multichannel add/drop ring networks based on wavelength division multiplexing (WDM) as well as on optical space-division multiplexing (SDM) technologies are being pursued. An overview is given of the system concept, the device technology, and the demonstration network that was developed within COBNET. The WDM ring option and specifically the related add/drop devices are focused on in more detail. These devices are fabricated in a newly developed highrefractive- index contrast planar silica-on-silicon technology by using silicon-oxynitride (SiON) as the core waveguide material. Compact add/ drop components based on the resonant coupler concept are realized. The filter characteristic can be tailored and tuned by thermo-optic heaters, which enables the selection of any given wavelength out of a series of wavelengths from the WDM ring using the same device.

Paper Details

Date Published: 1 December 1998
PDF: 11 pages
Opt. Eng. 37(12) doi: 10.1117/1.601997
Published in: Optical Engineering Volume 37, Issue 12
Show Author Affiliations
Gian-Luca Bona, IBM/Zurich Research Lab. (Switzerland)
Wolfgang Denzel, IBM Zuerich (Switzerland)
Bert J. Offrein, IBM Corp. (Switzerland)
Roland Germann, IBM Corp. (Switzerland)
Huub W. Salemink, IBM/Zurich Research Lab. (Switzerland)
Folkert Horst, IBM Corp. (Switzerland)

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