Silicon photonics 2 × 2 trench coupler design and foundry fabrication https://s2.smu.edu/~mitch/ftp_dir/pubs/qtop19.pdf#new_tab
A Quantum Photonic TRNG based on Quaternary Logic https://s2.smu.edu/~mitch/ftp_dir/pubs/ismvl20a.pdf#new_tab
Multiple-Valued Logic Physically Unclonable Function in Photonic Integrated Circuits https://anametric.com/multiple-valued-logic-physically-unclonable-function-in-photonic-integrated-circuits/
Silicon photonics 2 × 2 trench coupler design and foundry fabrication https://opg.optica.org/ao/fulltext.cfm?uri=ao-61-16-4927&id=473336#new_tab