The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2025
Filed:
Dec. 15, 2022
Psiquantum, Corp., Palo Alto, CA (US);
Vimal Kumar Kamineni, Fremont, CA (US);
Matteo Staffaroni, San Ramon, CA (US);
Faraz Najafi, Palo Alto, CA (US);
Ann Melnichuk, Rio Rancho, NM (US);
George Kovall, Palo Alto, CA (US);
Yong Liang, Niskayuna, NY (US);
Psiquantum, Corp., Palo Alto, CA (US);
Abstract
A device includes a substrate, a dielectric layer on the substrate, a waveguide within the dielectric layer, and a photodetector optically coupled to the waveguide. The photodetector is disposed above the waveguide layer and is monolithically integrated with the substrate. The photodetector is configured to operate at low temperatures, such as below about 50 K or about 20 K. In some embodiments, the monolithic photonic device includes thermal isolation structures and optical isolation structures. Techniques for manufacturing the monolithic photonic device, including the thermal isolation structures and optical isolation structures, are also described.