Two-axis Beam Steering Mirror Control system for Precision Pointing and Tracking Applications

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Precision pointing and tracking of laser beams is critical in numerous military and industrial applications. This is particularly true for systems requiring atmospheric beam propagation. Such systems are plagued by environmental influences which cause the optical signal to break up and wander. Example applications include laser communications, precision targeting, active imaging, chemical remote sensing, and laser vibrometry. The goal of this project is to build a beam steering system using a two-axis mirror to maintain precise pointing control. Ultimately, position control to 0.08% accuracy (40 {micro}rad) with a bandwidth of 200 Hz is desired. The work described encompasses evaluation of ... continued below

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PDF-file: 59 pages; size: 2.4 Mbytes

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Ulander, K February 8, 2006.

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Precision pointing and tracking of laser beams is critical in numerous military and industrial applications. This is particularly true for systems requiring atmospheric beam propagation. Such systems are plagued by environmental influences which cause the optical signal to break up and wander. Example applications include laser communications, precision targeting, active imaging, chemical remote sensing, and laser vibrometry. The goal of this project is to build a beam steering system using a two-axis mirror to maintain precise pointing control. Ultimately, position control to 0.08% accuracy (40 {micro}rad) with a bandwidth of 200 Hz is desired. The work described encompasses evaluation of the instrumentation system and the subsequent design and implementation of an analog electronic controller for a two-axis mirror used to steer the beam. The controller operates over a wide temperature range, through multiple mirror resonances, and is independent of specific mirrors. The design was built and successfully fielded in a Lawrence Livermore National Laboratory free-space optics experiment. All measurements and performance parameters are derived from measurements made on actual hardware that was built and field tested. In some cases, specific design details have been omitted that involve proprietary information pertaining to Lawrence Livermore National Laboratory patent positions and claims. These omissions in no way impact the general validity of the work or concepts presented in this thesis.

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PDF-file: 59 pages; size: 2.4 Mbytes

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  • Report No.: UCRL-TH-219069
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 893570
  • Archival Resource Key: ark:/67531/metadc874934

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 8, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 9, 2016, 12:02 a.m.

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Ulander, K. Two-axis Beam Steering Mirror Control system for Precision Pointing and Tracking Applications, thesis or dissertation, February 8, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc874934/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.