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Optical Engineering

Design of a small-aperture steering mirror for high bandwidth acquisition and tracking
Author(s): Gregory C. Loney
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Paper Abstract

The high bandwidth steering mirror (HBSM) prototype is the product of a research program established to develop a high-bandwidth, low angular range, two-dimensional beam steerer frequently found in optomechanical pointing, acquisition, and tracking systems. This research centered around the optimization of a beam-steering mechanism composed of mirror, restoring flexure, actuators, position sensors, and encompassing housing. Various design trade-offs and manufacturing issues involved in building the prototype are discussed, and the performance data are presented. The resulting HBSM design allows integration with a simple closed-loop control scheme. The mirror/controller has a closedloop bandwidth of 10kHz and 10 peak-to-peak stroke (mirror normal) at low frequencies. This increased bandwidth yields excellent disturbance rejection in the 10 to 1000 Hz frequency band and enables the generation of faster scan patterns.

Paper Details

Date Published: 1 November 1990
PDF: 6 pages
Opt. Eng. 29(11) doi: 10.1117/12.55738
Published in: Optical Engineering Volume 29, Issue 11
Show Author Affiliations
Gregory C. Loney, General Scanning (United States)

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