Laser boresighting by second-harmonic generation

摘要

Abstract: Weapons delivery systems frequently use laser designators which require boresighting with the visual line of sight. For systems based on the Nd.YAG laser ($lambda $EQ 1.06 $mu@m), this may be achieved by a boresight collimator with a second harmonic generating crystal in its focal plane which reradiates collimated, visible light ($lambda $EQ 0.53 $mu@m). The conception, design and testing of such a device will be described along with a comparison with alternative technologies which demonstrates its superiority in terms of conversion efficiency, damage threshold and design versatility. !