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Proceedings Paper

Atmospheric propagation properties of various laser systems
Author(s): Greg A. Pitz; Sara Glass; Brian Kamer; Wade L. Klennert; David A. Hostutler
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Paper Abstract

Atmospheric propagation properties of various laser systems, including diode pumped alkali lasers (DPALs) and the Chemical Oxygen Iodine Laser (COIL), are of importance. However, there appears to be a lack of highly accurate transmission characteristics of these systems associated with their operating conditions. In this study laser propagation of the rubidium-based DPAL and the COIL has been simulated utilizing integrated cavity output spectroscopy. This technique allowed for the simulation of laser propagation approaching distances of 3 kilometers on a test stand only 35 cm long. The spectral output from these simulations was compared to the HITRAN database with excellent agreement. The spectral prole and proximity of the laser line to the atmospheric absorbers is shown. These low pressure spectral proles were then extrapolated to higher pressures using an in-house hyperne model. These models allowed for the comparison of proposed systems and their output spectral prole. The diode pumped rubidium laser at pressures under an atmosphere has been shown to interact with only one water absorption feature, but at pressures approaching 7 atmospheres the D1 transition may interact with more than 6 water lines depending on resonator considerations. Additionally, a low pressure system may have some slight control of the overlap of the output prole with the water line by changing the buer gases.

Paper Details

Date Published: 16 May 2012
PDF: 7 pages
Proc. SPIE 8380, Atmospheric Propagation IX, 83800V (16 May 2012); doi: 10.1117/12.921251
Show Author Affiliations
Greg A. Pitz, Air Force Research Lab. (United States)
Sara Glass, Haverford College (United States)
Brian Kamer, Air Force Research Lab. (United States)
Wade L. Klennert, The Boeing Co. (United States)
David A. Hostutler, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 8380:
Atmospheric Propagation IX
Linda M. Wasiczko Thomas; Earl J. Spillar, Editor(s)

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