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Proceedings Paper

Investigation of radial temperature gradients in diode pumped alkali lasers using tunable diode laser absorption spectroscopy
Author(s): Charles D. Fox; Glen P. Perram
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Paper Abstract

Heat loads in Diode Pumped Alkali Lasers (DPAL) have been investigated using a diode laser to probe the radial dependence of the absorbance. A TiS pump laser heats the medium in a T=50-100°C cesium heat pipe with 5 Torr nitrogen used for quenching. A tunable diode laser probes the spectral absorbance of the cesium cell. Local alkali concentration, temperature, and saturation broadening modify Voigt lineshapes in the wing of the hyperfine split lines. The temperature within the pumped volume exceeds the wall temperature by almost 200 C.

Paper Details

Date Published: 25 February 2012
PDF: 10 pages
Proc. SPIE 8238, High Energy/Average Power Lasers and Intense Beam Applications VI; Atmospheric and Oceanic Propagation of Electromagnetic Waves VI, 823806 (25 February 2012); doi: 10.1117/12.906389
Show Author Affiliations
Charles D. Fox, Air Force Institute of Technology (United States)
Glen P. Perram, Air Force Institute of Technology (United States)


Published in SPIE Proceedings Vol. 8238:
High Energy/Average Power Lasers and Intense Beam Applications VI; Atmospheric and Oceanic Propagation of Electromagnetic Waves VI
Steven J. Davis; Michael C. Heaven; J. Thomas Schriempf, Editor(s)

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