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Waveguide grating routers with greater channel uniformity

Waveguide grating routers with greater channel uniformity

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Previous waveguide grating routers have much more loss at edge wavelengths or channels. Here, the authors propose a novel design that spreads the loss more uniformly among the channels. It is even possible to have more losses in the centre then in some of the edge ports.

Inspec keywords: optical fibre networks; optical fibre losses; wavelength division multiplexing; diffraction gratings

Other keywords: WDM; optical fibre networks; edge ports; optical fibre losses; channel uniformity; waveguide grating routers

Subjects: Photonic switching systems; Fibre optics; Optical communication

References

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      • Dragone, C.: USA, 5,412,744, 2 May 1995.
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      • O. Ishida , H. Takahashi . Loss-imbalance equalization in arrayed-waveguide-grating(AWG) multiplexer cascades. J. Lightwave Technol. , 6 , 1155 - 1163
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      • C. Dragone . Crosstalk caused by fabrication errors in a generalised Mach-Zehnderinterferometer. Electron. Lett. , 15 , 1326 - 1327
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      • H. Takahashi , S. Suzuki , K. Kato , I. Nishi . Arrayed-waveguide grating for wavelength division multi/demultiplexerwith nanometre resolution. Electron. Lett. , 2 , 87 - 88
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