Optimizing Imbalance and Loss in 2 2 3dB Multimode Interference Couplers via Access Waveguide Width

@inproceedings{Hill2001OptimizingIA,
  title={Optimizing Imbalance and Loss in 2 2 3dB Multimode Interference Couplers via Access Waveguide Width},
  author={Martin T. Hill and Xaveer J. M. Leijtens and G. D. Khoe and Meint K. Smit},
  year={2001}
}
The imbalance and excess loss in multimode interference couplers with fabrication errors are examined. Remarkably, there exists a number of optimum access waveguide widths which give a minimum imbalance. Furthermore, quite low excess loss can be simultaneously achieved by choosing one particular optimum width. It is also shown that paired interference couplers have better imbalance performance than general interference couplers, given the same fabrication tolerances and length constraint for… CONTINUE READING
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