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Proceedings Article

Laser pointing stability measurements

[+] Author Affiliations
Marc Levesque, Alain Mailloux, Michel Morin, Pierre Galarneau

National Optics Institute (Canada)

Yves Champagne, Olivier Plomteux

Gentec, Inc. (Canada)

M. Tiedtke

Laser Zentrum Hannover eV (Germany)

Proc. SPIE 2870, Third International Workshop on Laser Beam and Optics Characterization, 216 (November 20, 1996); doi:10.1117/12.259900
Text Size: A A A
From Conference Volume 2870

  • Third International Workshop on Laser Beam and Optics Characterization
  • Michel Morin; Adolf Giesen
  • Quebec City, Canada | July 08, 1996

abstract

Experiments have been conducted to evaluate the feasibility of conducting pointing stability measurements with a relatively low cost stand alone apparatus. These experiments also aimed at collecting beam wandering data for pointing stability measurement system engineering purposes. The system consists of two dual-axes position sensing detectors (PSDs) that simultaneously measure variations of the beam position in two different planes. Sample-and-hold circuits are used to synchronize measurements taken by both PSDs. Detector signals are amplified and processed analogically in order to obtain voltage outputs directly related to beam position. The output signals are then A/D converted for computations. Software allows pointing stability calculations as well as frequency spectrum analysis of position fluctuations.

© (1996) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Marc Levesque ; Alain Mailloux ; Michel Morin ; Pierre Galarneau ; Yves Champagne, et al.
"Laser pointing stability measurements", Proc. SPIE 2870, Third International Workshop on Laser Beam and Optics Characterization, 216 (November 20, 1996); doi:10.1117/12.259900; http://dx.doi.org/10.1117/12.259900


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