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Subwavelength grating waveguides for integrated photonics

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Abstract

Subwavelength waveguide gratings (SWG) are locally periodic structures with parameters that may vary slowly on the scale of a wavelength. Here the implementation of a Lüneburg lens as a SWG to provide Fourier optics on a chip and the design of the adiabatic structures that must be provided to interface SWG structures to conventional waveguides are considered. Preliminary findings are reported on the dispersion engineering of multimode interference couples towards the ideal port phase relations needed in coherent applications.

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Acknowledgments

The authors are indebted to Tom Davies of Technix for his technical support of the Photon Design suite of software tools used in the work. The authors acknowledge the financial support of the Natural Sciences and Engineering Research Council of Canada (NSERC) though an Engage Grant with Technix. Trevor J. Hall is grateful to the Canada Research Chair (CRC) Program for their support of his CRC-I in Photonic Network Technology.

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Authors and Affiliations

  1. Photonics Technology Laboratory, Centre for Research in Photonics, School of Electrical Engineering and Computer Science, University of Ottawa, Advanced Research Complex, 25 Templeton St., Ottawa, ON, K1N 6N5, Canada

    Hamdam Nikkhah & Trevor J. Hall

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  1. Hamdam Nikkhah
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  2. Trevor J. Hall
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Correspondence to Hamdam Nikkhah.

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Nikkhah, H., Hall, T.J. Subwavelength grating waveguides for integrated photonics. Appl. Phys. A 122, 368 (2016). https://doi.org/10.1007/s00339-016-9880-6

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