FOG800L (IF60L-M)is one device designed with SLD Fiber Optic Light Source;Operating at the wavelength of 1550nm,this waveband the light transmiss with the lowest insertion loss.This state-of-the-art closed loop fiber optic gyroscope (FOG) designed and developed entirely in-house.The FOGPhotonics delivers low grade precision and reliable performance at lower cost and smaller size than other comparable gyros, especially other FOGs.