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Design and Analysis of Waveguide Taper for Photonic Crystal Demultiplexer

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Abstract

The Photonic Crystal (PC) taper integrated between Single Mode Fiber (SMF) and photonic device for optimum power coupling for different waveguide lengths (8 μm and 0.99 μm) is designed and analyzed. Different geometries of the taper such as triangular, rectangular and Butt coupler are considered for investigation. The transmission efficiencies of different waveguides based on the taper length (TL), waveguide starting (WS), waveguide ending (WE), and inlet waveguide width (WI) geometry are investigated. Triangular taper design couples the strong electric field which provides higher transmission efficiency of around >90%, spectral wavelength of a 0.2 nm, channel spacing of 0.4 nm, and crosstalk of −53 dB.

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Authors and Affiliations

  1. School of Electronics Engineering, Vellore Institute of Technology, Vandalur Kelambakkam Road, Chennai, Tamil Nadu, 600 127, India

    Venkatachalam Rajarajan Balaji

  2. Department of Electronics and Communication Engineering, SRM Valliammai Engineering College, Kattankulathur, Tamil Nadu, 603203, India

    Mahalingam Murugan

  3. Department of Electronics and Communication Engineering, Mount Zion College of Engineering and Technology, Pudukkottai, Tamil Nadu, 622 507, India

    Savarimuthu Robinson

  4. Centre for Nanoscience and Engineering, Indian Institute of Science, Bengaluru, Karnataka, 560012, India

    Gopalkrishna Hegde

Authors
  1. Venkatachalam Rajarajan Balaji
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  2. Mahalingam Murugan
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  3. Savarimuthu Robinson
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  4. Gopalkrishna Hegde
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Correspondence to Venkatachalam Rajarajan Balaji.

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Balaji, V.R., Murugan, M., Robinson, S. et al. Design and Analysis of Waveguide Taper for Photonic Crystal Demultiplexer. Silicon 13, 3777–3793 (2021). https://doi.org/10.1007/s12633-020-00678-w

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  • DOI: https://doi.org/10.1007/s12633-020-00678-w

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