Long range all-fiber Coherent Doppler LIDAR (CDL) systemfor wind sensing

摘要

Long range all-fiber Coherent Doppler LIDAR (CDL) system has been developed for wind sensing. A newly developed Er3+/Yb3+ fiber MOPA (Master Oscillator Power Amplification) source has enabled transmitting optical pulse to be performed its pulse energy of several tenth micro joule, which was previously limited up to several micro joule because of Stimulated Brillouin Scattering (SBS) in an optical fiber. The new all-fiber CDL has successfully measured maximum range for wind velocities up to 8km which is about 5 times as long as the measurable distance of a few kilometer in a conventional all-fiber CDL.