Patent ID: 11927444
Assignee: NORTHWESTERN POLYTECHNICAL UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. A chip-level resonant acousto-optic coupled solid state wave gyroscope according to claim 1, wherein:
each of the fifth couplers (8-1) and the sixth coupler (8-2) has a Y-shaped branch structure or a multi-mode interference coupling structure used to divide a waveguide into two branches with the same structure, so that the intensities of the optical signal transmitted in the two optical waveguide branches are equal;
the first optical waveguide (12-1) and the second optical waveguide (12-2) at the signal output end are connected to each other via a third coupler (10-1) and the first micro-ring resonant cavity (11-1);
the third optical waveguide (13-1) and the fourth optical waveguide (13-2) at the signal output end are connected to each other via a fourth coupler (10-2) and the second micro-ring resonant cavity (11-2).