FSM-300 or FSM-320 Fast Steering Mirror & FSM-CD300B ...
FSM-300 or FSM-320 Fast Steering Mirror & FSM-CD300B ...
FSM-300 or FSM-320 Fast Steering Mirror & FSM-CD300B ...
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<strong>Fast</strong> <strong>Steering</strong> Mirr<strong>or</strong> Technology 11<br />
2. <strong>Fast</strong> <strong>Steering</strong> Mirr<strong>or</strong> Technology<br />
Originally conceived f<strong>or</strong> military/aerospace applications such as high-speed<br />
target tracking and secure satellite-to-satellite communication, fast steering<br />
mirr<strong>or</strong> technology has been developed to the point where it is economically<br />
viable f<strong>or</strong> widespread commercial use in dynamic mirr<strong>or</strong> alignment applications.<br />
This technology can be used to stabilize laser beams (Figure 1), track<br />
w<strong>or</strong>k pieces f<strong>or</strong> precision laser micro-machining, scan laser beams f<strong>or</strong> realtime<br />
confocal microscopy, track optical receivers f<strong>or</strong> laser free-space communication,<br />
and increase sharpness in sophisticated imaging systems.<br />
Figure 1: Two fast steering mirr<strong>or</strong>s used to compensate f<strong>or</strong> input tilt err<strong>or</strong>s.<br />
A practical fast steering mirr<strong>or</strong> head is shown in Figure 2. There are eight<br />
basic head components: voice-coil actuat<strong>or</strong>s, mirr<strong>or</strong>, mirr<strong>or</strong> carrier, flexure<br />
suspension, frame, housing, internal position sens<strong>or</strong>s, and position sens<strong>or</strong><br />
electronics. These components w<strong>or</strong>k with the controller to produce the<br />
precision rotation and speed characteristic of these devices.
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