The iODOT sensor is an angular acceleration sensor, based on a fiber optic gyro with high bandwidth. Compared to other gyroscopes the optical gyroscope has the advantage of very low noise, short reaction time, high resolution, acceleration insensitivity and unsurpassed robustness. iODOT provides a compensated output (RS422 UART) for angular rate, angular acceleration and angle as well. It is used e.g. in aircraft testing.