Injection locking resonator fiber optic gyroscope

A method comprising:

• generating a first laser at a first launch frequency from at least one laser source;
• generating a second laser at a second launch frequency from the at least one laser source;
• coupling the first laser into an optical resonator in a first direction of propagation within the optical resonator, wherein the optical resonator provides a first optical feedback associated with the first direction at a first resonance frequency;
• coupling the second laser into the optical resonator in a second direction of propagation within the optical resonator that is opposite to the first direction, wherein the optical resonator provides a second optical feedback associated with the second direction at a second resonance frequency;
• and
• injecting the first optical feedback and the second optical feedback into the at least one laser source such that the first launch frequency locks to the first resonance frequency and the second launch frequency locks to the second resonance frequency.

A system comprising:

• an optical resonator;
• at least one laser source configured to launch a first laser for propagating within the optical resonator in a first direction and launch a second laser for propagating within the optical resonator in a second direction that is opposite to the first direction, wherein the first laser is emitted by the at least one laser source at a first launch frequency and the second laser is emitted by the at least one laser source at a second launch frequency;
• at least one return path that injects a first optical feedback, associated with the first laser, and a second optical feedback, associated with the second laser, from the optical resonator to the at least one laser source, wherein the first optical feedback locks the first launch frequency to a first resonance frequency of the optical resonator and the second optical feedback locks the second launch frequency to a second resonance frequency of the optical resonator;
• and
• a rate detector that detects a rate of rotation based on a beat frequency of the first laser and the second laser.