Coherent Imaging Laser Source

ABSTRACT: Coherent imaging systems have the capability to provide high-resolution 3D imagery for target identification at stand-off ranges. These systems require relatively short pulse width, transform-limited linewidth pulsed lasers with high pulse energy to illuminate the target of interest. Here we proposed to demonstrate and build near 1550nm single frequency fiber laser with pulse energy of greater than 10mJ and pulse width of 30ns to 300ns by using our innovative Er-doped glass fibers. The laser beam should have near diffraction limited beam quality to reach the desired targets and detectors. The goal of the Phase I program is to prove the proposed technical approach is realistic and achievable. BENEFIT: This proposed single frequency high energy and high peak power fiber laser can be used as innovative lidar component for wind lidar, measurements of the atmosphere and gas contents of the Earth, and ranging. It also can be used as light source for optical sensing.