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ABSTRACT

Data communication over POFs (polymer optical fibers) is limited to only one channel for data transmission. Therefore the bandwidth is strongly restricted. By using more than one channel, it is possible to break through the limit. This technique is called WDM (wavelength division multiplexing). It uses different wavelengths in the visible spectrum to transmit data parallel over one fiber. Two components are essential for this technology: A MUX (multiplexer) and a DEMUX (demultiplexer). The multiplexer collects the light of the different sources to one fiber and the demultiplexer separates the light at the end of the fiber into the different fiber output ports. ­In this paper, we propose spectral grids in the visible spectrum, which are compatible with existing standards like ITU recommendations for WDM networks. Additionally, results of a demonstrator of an integrated polymeric demultiplexer produced with injection molding are presented. The paper discusses the results of the different development steps, the measurements done with the first demonstrator and the challenges related to the injection molding process.

KEYWORDS

POF, WDM, (de-)multiplexer, spectral grid, injection molding.

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