Flow of optical patterns due to small lateral wave-front shifts in a nonlinear optical feedback system

摘要

Flow of a spontaneously formed optical pattern in a nonlinear optical feedback system consisting of a liquid crystal optically addressable spatial light modulator with feedback is induced by a lateral wave-front shift of the feedback light. We demonstrate the dependency of the flow speed on the wave-front shift by tilting an optical flat inserted in the feedback loop. We also demonstrate the application to real-time, high-sensitivity detection of small tilt angles of optical components. (C) 2003 Published by Elsevier Science B.V. [References: 15]