Ring Laser Integrated with Silicon-On-Insulator Waveguide

    公开(公告)号:US20210151953A1

    公开(公告)日:2021-05-20

    申请号:US16081028

    申请日:2017-02-28

    申请人: STC.UNM

    摘要: The present invention provides one or more injection-lockable whistle-geometry semiconductor ring lasers, which may be cascaded, that are integrated on a common silicon-on-insulator (SOI) substrate with a single-frequency semiconductor master laser, wherein the light output from the semiconductor master laser is used to injection-lock the first of the semiconductor ring lasers. The ring lasers can be operated in strongly injection-locked mode, while at least one of them is subjected to direct injection current modulation.

    Systems and methods for analyzing stability using metal resistance variations

    公开(公告)号:US10671350B2

    公开(公告)日:2020-06-02

    申请号:US16051427

    申请日:2018-07-31

    申请人: STC.UNM

    发明人: James Plusquellic

    摘要: This disclosure describes techniques for analyzing statistical quality of bitstrings produced by a physical unclonable function (PUF). The PUF leverages resistance variations in the power grid wires of an integrated circuit. Temperature and voltage stability of the bitstrings are analyzed. The disclosure also describes converting a voltage drop into a digital code, wherein the conversion is resilient to simple and differential side-channel attacks.