Three-Axis Integrated Fiber Optic Gyroscope

The AgileLight-40C is a compact, medium-precision three-axis fiber optic gyroscope designed to deliver stable, high-quality angular rate measurement in demanding navigation and attitude-control applications. It leverages all-digital closed-loop control combined with weak-signal correlation detection, enabling precise angular rate sensing with excellent linearity, low noise, and strong resistance to environmental disturbances.

By adopting advanced miniaturized optoelectronic packaging, the AgileLight-40C achieves a form factor and power consumption comparable to mainstream three-axis MEMS gyroscopes, while retaining the inherent advantages of fiber optic gyroscope (FOG) technology. This includes superior scale-factor linearity, enhanced temperature stability, and long-term measurement consistency—characteristics that are critical in applications where MEMS gyroscopes may struggle with drift, bias instability, or thermal sensitivity.

Unlike mechanical or vibrating-mass gyroscopes, the AgileLight-40C contains no moving parts, which significantly improves reliability and operational lifespan. The closed-loop FOG architecture actively compensates for optical phase variations, ensuring consistent performance across a wide dynamic range and under continuous motion. This makes the sensor well suited for both steady-state orientation tracking and rapidly changing angular motion.

The system is powered by a +5 V supply and provides a digital RS422 output, allowing reliable data transmission over longer distances and improved immunity to electrical noise. This interface makes the AgileLight-40C easy to integrate into embedded control systems, inertial navigation units, and data acquisition platforms where signal integrity and synchronization are essential.

Thanks to its balance of size, power efficiency, and FOG-level performance, the AgileLight-40C is suitable for a wide range of applications, including:

• Airborne navigation systems, where stable angular rate data supports flight control and guidance

• Unmanned aerial vehicles (UAVs) and unmanned systems requiring precise attitude sensing

• Vehicle orientation and motion tracking, supporting navigation and stabilization functions

• Marine applications, such as heading reference and platform stabilization

• Precision attitude control systems, where temperature stability and long-term consistency are critical

The three-axis integrated design ensures synchronized measurement of roll, pitch, and yaw within a single calibrated unit, simplifying system architecture and improving axis-to-axis consistency. When integrated with accelerometers or higher-level inertial navigation algorithms, the AgileLight-40C serves as a reliable core sensor for advanced orientation and navigation solutions.

By combining compact MEMS-like integration with the proven advantages of closed-loop fiber optic gyroscope technology, the AgileLight-40C delivers a practical and dependable solution for medium-precision inertial sensing in real-world operating environments..