Noise Suppression During Mode-Locking in a Laser Gyroscope Based on a Semiconductor Optical Amplifier with a Long Fiber Cavity

We present the results of creating a laser gyroscope based on a semiconductor optical amplifier and a fiber cavity. To improve the sensitivity of the laser gyroscope we employed mode-locking through modulating the pump current and gain in the semiconductor structure. The lasing regimes in a laser gyroscope with a semiconductor optical amplifier and a long fiber cavity have been studied. The effect of longitudinal mode-locking on the stability of generation, the linewidth, noise and the lock-in zone is determined. The lasing regimes are compared and possibilities of registration of angular values are considered.