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A New Approach of Hetero-Cladding for Design of Compact Si Photonic Directional Coupler

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posted on 12.10.2021, 07:59 authored by MADHUSUDAN MISHRA, Nikhil DasNikhil Das
In this letter, we propose a new approach of hetero-cladding for realization of compact CMOS compatible silicon photonic directional couplers. The proposed hetero-cladding comprises ferroelectric BaTiO3 (BTO) and SiO2 to control the evanescent mode within the structure. The results show very small and identical coupling length for both TE and TM modes with reduced device cross-section, which promises for a huge reduction in the footprint of both conventional and programmable photonic integrated circuits. The concept can also be utilized to design compact, low loss and energy efficient phase shifters, other types of couplers, sensors etc.

Funding

DST INSPIRE Fellowship, India; Grant IF150280.

History

Email Address of Submitting Author

nrd@ieee.org

ORCID of Submitting Author

0000-0001-5123-8893

Submitting Author's Institution

University of Calcutta

Submitting Author's Country

India