US 12,411,010 B2
Gyroscope assembly with ring resonator and interference path
Patrick Tritschler, Engen (DE); and Torsten Ohms, Vaihingen/Enz-Aurich (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Jul. 7, 2023, as Appl. No. 18/348,771.
Claims priority of application No. 10 2022 207 074.7 (DE), filed on Jul. 11, 2022.
Prior Publication US 2024/0011774 A1, Jan. 11, 2024
Int. Cl. G01C 19/72 (2006.01)
CPC G01C 19/726 (2013.01) [G01C 19/725 (2013.01); G01C 19/727 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An optical gyroscope assembly configured to measure a rotation rate, comprising:
a first multimode interferometer with an input for receiving light and two outputs, each of the two outputs of the first multimode interferometer being connected to a respective second light guide;
a ring resonator on each of the second light guides;
a second multimode interferometer with two inputs and two outputs, each of the two inputs of the second multimode interferometer connected to one of the second light guides, each of the two outputs of the second multimode interferometer connected to a respective third light guide; and
a third multimode interferometer with two inputs and two outputs, each of the two inputs being connected to one of the third light guides, and each of the two outputs being connected to a respective fourth light guide.