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Proceedings Paper

A High-Radiance Laser System For Lunar Ranging
Author(s): C. G. Lehr; M. R. Pearlman; M. R. Wolf; J. A. Monjes; W. F. Hagen
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Paper Abstract

A transportable laser system for lunar ranging is described. It can be used at any astronomical observatory where a 1.5-m telescope is available. Since this telescope is used for the returned signal only, its use for other purposes is not affected significantly. The transportable system uses a high-energy, single-mode, neodymium-glass laser whose frequency-doubled wavelength is 530 nm. Because the laser's divergence is very low, an atmospherically limited beam-width can be achieved with optics only 0.2 m in diameter. An initial phase of the program, con-cerned with ranging to near-earth satellites, will be described. For this application, a 5-cm coude system is used to point the laser beam. There is also a separate 12-cm receiving telescope.

Paper Details

Date Published: 18 June 1971
PDF: 4 pages
Proc. SPIE 0023, Optical Tracking Systems, (18 June 1971); doi: 10.1117/12.953472
Show Author Affiliations
C. G. Lehr, Smithsonian Astrophysical Observatory (United States)
M. R. Pearlman, Smithsonian Astrophysical Observatory (United States)
M. R. Wolf, Smithsonian Astrophysical Observatory (United States)
J. A. Monjes, Smithsonian Astrophysical Observatory (United States)
W. F. Hagen, American Optical Corporation (United States)

Published in SPIE Proceedings Vol. 0023:
Optical Tracking Systems
J. G. Muhlberger; Ernie D. Miller, Editor(s)

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