Wide bandwidth, low loss 1 by 4 wavelength division multiplexer on silicon for optical interconnects

@inproceedings{Tan2011WideBL,
  title={Wide bandwidth, low loss 1 by 4 wavelength division multiplexer on silicon for optical interconnects},
  author={D. T. H. Tan and Kazuhiro Ikeda and Steve Zamek and Amit Mizrahi and Maziar Pourabdollah Nezhad and Ashok V. Krishnamoorthy and Kannan Raj and Jack Cunningham and Xuezhe Zheng and Ivan Shubin and Ying Zhe Luo and Yeshaiahu Fainman},
  year={2011}
}
We demonstrate an add/drop filter based on coupled vertical gratings on silicon. The concept is extended to implement a 1 by 4 wavelength division multiplexer with 3nm bandwidth, 1dB insertion loss and 16dB crosstalk suppression. 

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