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Proceedings Paper

Wavelength selection and propagation analysis for shipboard free electron laser
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Paper Abstract

A megawatt-class high energy laser aboard a Navy ship could provide effective self defense against modern anti-ship missiles. The free electron laser is a candidate for use in this mission, and has several advantages over chemical lasers, which have been previously considered. One obvious advantage is wavelength tune-ability of teh FEL-allowing tuning of the laser wavelength to an atmospheric spectral window of minimum absorption. This study reports on analysis performed to select optimum wavelengths for a ship-based FEL in consideration of atmospheric effects. We examine atmospheric absorption, scattering, trubulence, and thermal blooming, and compare their relative importance in optimizing power in the bucket on target for representative scenarios. We also examine the issue of thermal blooming caused by atmospheric aerosol absorption, and examine the relative absorption of open-ocean vs continental aerosols. We find excellent propagation results at 1.625 and 1.047 microns.

Paper Details

Date Published: 8 September 2004
PDF: 12 pages
Proc. SPIE 5413, Laser Systems Technology II, (8 September 2004); doi: 10.1117/12.548271
Show Author Affiliations
Daniel H. Leslie, Photon Research Associates (United States)
Mikhail Belen'kii, Trex Enterprises Corp. (United States)


Published in SPIE Proceedings Vol. 5413:
Laser Systems Technology II
William E. Thompson; Richard L. Brunson, Editor(s)

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