Abstract: The development of the Integrated Beam Control Demonstration (IBCD) brassboard for the Advanced Beam Control System (ABCS) program requires high speed large angle steering mirrors for internal laser beam control. These mirrors, which use large dynamic range voice- coil actuators and position sensor for steering and precision pointing, must be able to steer through a significant fraction of a radian in two axes and operate at a high bandwidth. Hughes Danbury Optical Systems, Inc., has successfully designed, fabricated, and tested these large angle fast steering mirrors. This paper presents some of the measurement data acquired during the recently concluded performance testing. !4
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