Gated phase-modulation feedback approach to fiber-optic gyroscopes.

Area of Science:

• Optics and Photonics
• Instrumentation and Measurement

Background:

• Fiber-optic gyroscopes (FOGs) are crucial for inertial navigation.
• Traditional closed-loop FOGs face challenges in dynamic range and scale factor linearity.

Purpose of the Study:

• To introduce a new closed-loop operation method for all-fiber-optic gyroscopes.
• To enhance simplicity, dynamic range, and scale factor linearity.

Main Methods:

• Utilized phase modulation for signal manipulation.
• Implemented signal gating for closed-loop control.
• Conducted experimental validation against theoretical models.

Main Results:

• Demonstrated a simplified implementation of closed-loop FOG operation.
• Achieved a wide dynamic range capability.
• Observed an approximately linear scale factor.

Conclusions:

• The proposed phase modulation and signal gating approach offers significant advantages for FOGs.
• This method enhances performance metrics crucial for navigation and sensing applications.