FOG600M (IF120-HM)is one device designed with erbium-doped Fiber Optic Light Source;Operating at the wavelength of 1550nm,this waveband the light transmiss with the lowest insertion loss.The gyro ASE light source has a high output power together with the good wavelegth stability.This state-of-the-art closed loop fiber optic gyroscope (FOG) designed and developed entirely in-house.The FOGPhotonics delivers superior precision and reliable performance at lower cost and smaller size than other comparable gyros, especially other FOGs.The performance of gyros and systems can be optimized for specific requirements and applications on an individual basis. FOGs can be supplied as a stand alone single axis, or as a dual/ triad with common electronics. All FOGs are available with a flexible interface configuration.