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Related Experiment Videos

Digital waveguide adiabatic passage part 1: theory.

Jesse A Vaitkus, M J Steel, Andrew D Greentree

    Optics Express
    |April 7, 2017
    PubMed
    Summary

    Digital waveguide separation enables robust spatial adiabatic passage for integrated photonics. This novel method simplifies designs, offering new possibilities for photonics devices despite variations in wavelength and refractive index.

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    Area of Science:

    • Photonics and optical engineering
    • Integrated optics
    • Waveguide theory

    Background:

    • Conventional adiabatic passage in integrated photonics requires smoothly varying waveguide separations.
    • This limits design flexibility and fabrication processes for photonic devices.

    Purpose of the Study:

    • To investigate the feasibility and robustness of digital waveguide separation for spatial adiabatic passage.
    • To explore new design strategies for integrated photonic devices using this digital approach.

    Main Methods:

    • Modelling of adiabatic passage devices with digitally varied waveguide separations.
    • Analysis of device performance under variations in input wavelength and refractive index contrast.

    Main Results:

    • Digital variation of waveguide separation maintains adiabatic passage characteristics.
    • The proposed designs demonstrate robustness against input wavelength and refractive index contrast variations.
    • Successful modelling of spatial adiabatic passage with discrete waveguide separations.

    Conclusions:

    • Digital waveguide separation is a viable and robust method for designing integrated photonic devices.
    • This approach offers enhanced design flexibility and potential for novel photonic device development.
    • The findings pave the way for simplified fabrication and new functionalities in integrated photonics.

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