Phase Conjugate-Light and Digital Hologram for Space Debris Problem

Abstract

To remotely and accurately irradiate laser beams on micro space debris moving at high speeds in space, mechanical beam control poses major challenges in terms of response speed and dynamic stability. In response to this issue, basic research is being conducted on digital phase conjugated-light technology that enables retro-directive tracking by real-time wavefront control using a CCD camera and a spatial phase modulator. This paper introduces the current technology and prospects for improving the wavefront reproduction accuracy and the response time performance and supporting high output power.