System to reduce gyroscopic errors with limited power supply quality in a fiber optic gyroscope

An interferometric fiber optic gyroscope, comprising:

• a laser light source;
• an optical coupler in optical communication with the laser light source and configured to receive an optical signal from the laser light source;
• an integrated optical chip in optical communication with the optical coupler;
• a fiber optic coil in optical communication with the integrated optical chip;
• a demodulator configured to receive an optical signal from the optical coupler and convert the optical signal to an electrical signal;
• a loop closure electronics module configured to receive the electrical signal from the demodulator;
• a bias modulator responsive to an output from the loop closure electronics module and configured to output a modulation signal to the integrated optical chip;
• a first crosstalk filter network operatively coupled to the demodulator, the first crosstalk filter network comprising a first pair of common mode and differential mode filter networks;
• and
• a second crosstalk filter network operatively coupled to the bias modulator, the second crosstalk filter network comprising a second pair of common mode and differential mode filter networks.