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Proceedings Paper

Pulsed laser architecture for enhancing backscatter from sodium
Author(s): Thomas J. Kane; Paul D. Hillman; Craig A. Denman
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Paper Abstract

The brightness of a laser-generated guide star is determined not only by the power of the laser, but also by the spectral and temporal properties of the laser. We show that a guide star laser pulsed at the Larmor frequency of the sodium atoms enhances guide star brightness by up to 2X, compared to an optimized cw laser at the same average power. We describe a frequency-addition source of optical radiation that can provide such pulsed light, while providing any desired spectral shape.

Paper Details

Date Published: 21 July 2014
PDF: 7 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91483G (21 July 2014); doi: 10.1117/12.2055632
Show Author Affiliations
Thomas J. Kane, FASORtronics LLC (United States)
Paul D. Hillman, FASORtronics LLC (United States)
Craig A. Denman, FASORtronics LLC (United States)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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