Patent ID: 11880067
Assignee: HONEYWELL INTERNATIONAL INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. An interferometric gyroscope, comprising:
an integrated optical circuit, comprising:
a first substrate formed of a first material;
a first waveguide formed of a second material and positioned on the first substrate, wherein the first waveguide is configured to polarize light beams that propagate through the first waveguide, wherein the first waveguide is configured to split a light beam input into the first waveguide into multiple light beams;
a second substrate formed of a third material, wherein the second substrate is coupled to or positioned on the first substrate; and
a plurality of phase modulators positioned on or in the second substrate, wherein each respective phase modulator of the plurality of phase modulators is optically coupled to a respective branch of the first waveguide, wherein each respective phase modulator of the plurality of phase modulators is configured to modulate a phase of light beams that propagate through the respective phase modulator;

a light source configured to generate a light signal, wherein the light source is optically communicatively coupled to the first waveguide of the integrated optical circuit; and
a sensing coil configured to receive signals from the integrated optical circuit and output signals to the integrated optical circuit.