Towards the on-chip realization of polarization encoded qubits

Duncan L. MacFarlane; Adam Helmy; Hiva Shahoei; Tim LaFave Jr.; Mitchell A. Thornton; Evan Stewart; Wil Oxford

doi:10.1117/12.3016742

7 June 2024 Towards the on-chip realization of polarization encoded qubits

Duncan L. MacFarlane, Adam Helmy, Hiva Shahoei, Tim LaFave Jr., Mitchell A. Thornton, Evan Stewart, Wil Oxford

Proceedings Volume 13028, Quantum Information Science, Sensing, and Computation XVI; 130280E (2024) https://doi.org/10.1117/12.3016742
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States

Abstract

While photonic quantum circuits may be implemented using polarization-encoded qubits, their photonic integrated circuit (PIC) realization has been limited by on-chip impairments such as mode dispersion and polarization state stability that do not hinder bulk-optic, table-top setups. In this paper, we will present an interpretation of on-chip polarization and provide the beginning of a portfolio of components that may be used for polarization-encoded qubits. Central to our work is the use of waveguides of square cross-section, which symmetrically support orthogonal TE and TM modes with perpendicular electric fields. Preliminary designs for components to manipulate these modes are presented, along with measurements relevant to polarization in PICs. The research has relevance, as well, to sensing and security.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Duncan L. MacFarlane, Adam Helmy, Hiva Shahoei, Tim LaFave Jr., Mitchell A. Thornton, Evan Stewart, and Wil Oxford "Towards the on-chip realization of polarization encoded qubits", Proc. SPIE 13028, Quantum Information Science, Sensing, and Computation XVI, 130280E (7 June 2024); https://doi.org/10.1117/12.3016742

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