High Sensitivity Light Gyro and Accelerometers

We propose the development of a novel light (optical) gyro and accelerometer, light (weight), with unprecedented sensitivity. This project exploits the following innovations:The ability to generate two correlated frequency combs of the same repetition rate.Because of this correlation, while the bandwidth of a tooth of each comb is in the MHz range,the bandwidth of the interference is less than 1 Hz.Dispersion management boosting the sensitivity beyond our previous record of 0.01 microradian.Application to a dual comb ring laser leads to an ultrasensitive gyro without dead band.Application to a compact, stiff accelerometer which will have a displacement sensitivity of femtometers.We will implement of these ultrasensitive techniques in fiber lasers. With the resonant dispersive phase sensitivity enhancement seen with bulk component lasers, we expect to create a miniature device on par with the LIGO in terms of sensitivity.nbsp;