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Proceedings Paper

Control of intensity distribution and spectra through resonator design for the SABLE propagation experiments
Author(s): Patrick J. Pomphrey; Donald L. Bullock; Gerald B. Rohles; Daniel G. Fouche; Jeffrey P. Dansereau; Eric L. Schafer
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Paper Abstract

Characterization of atmospheric turbulence and thermal blooming for high energy laser propagation has been conducted for the Scaled Atmospheric Blooming Experiment (SABLE) under controlled experimental conditions. To enhance thermal blooming with a high brightness, moderate power laser beam, a hydrogen fluoride (HF) chemical laser, producing six major lines, P1(7), P1(8), P1(9), P2(7), P2(8), and P2(9), was utilized. This paper summarizes design options and the design and operation of an X-folding scheme and the resulting quad-pass resonator (QPR), which produced a spectrum shift of 2 J-lines, a near-field irradiance distribution that was more uniform along the flow direction, had less line-to-line variation in near-field irradiance distribution, and produced twice the far-field power after atmospheric propagation, when compared to a more conventional double-pass resonator (DPR).

Paper Details

Date Published: 1 May 1992
PDF: 8 pages
Proc. SPIE 1628, Intense Laser Beams, (1 May 1992); doi: 10.1117/12.58980
Show Author Affiliations
Patrick J. Pomphrey, TRW Space and Technology Group (United States)
Donald L. Bullock, TRW Space and Technology Group (United States)
Gerald B. Rohles, TRW Space and Technology Group (United States)
Daniel G. Fouche, Lincoln Lab./MIT (United States)
Jeffrey P. Dansereau, Science Applications International Corp. (United States)
Eric L. Schafer, Science Applications International Corp. (United States)

Published in SPIE Proceedings Vol. 1628:
Intense Laser Beams
Richard C. Wade; Peter B. Ulrich, Editor(s)

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