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:
Sep. 15, 2026
Filed:
Dec. 15, 2023
Anello Photonics, Inc., Santa Clara, CA (US);
Avi Feshali, Los Angeles, CA (US);
Mario Paniccia, Santa Clara, CA (US);
Warren Bruce Jin, Santa Clara, CA (US);
Anello Photonics, Inc., Santa Clara, CA (US);
Abstract
Aspects of the present disclosure are directed to introducing structural modifications in a waveguide-based optical structure in order to more tightly pack adjacent waveguide turns in the optical structure. The optical structure can be used as the rotational sensing element of an optical gyroscope fabricated on a planar silicon platform as a photonic integrated circuit. Increasing number of turns of a waveguide-based gyroscope coil increases total waveguide length as well as enclosed area of the gyroscope loop, which translates to increased sensitivity to rotational measurement. The structural modifications can be in the form of air-gaps or fluid-filled or metal-filled gaps, or various types of sub-wavelength structures (like gratings or photonic crystals).