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Proceedings Paper

Atmospheric transmission for cesium DPAL using TDLAS
Author(s): Christopher A. Rice; Glen P. Perram
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Paper Abstract

The cesium (Cs) Diode Pumped Alkali Laser (DPAL) operates near 894 nm, in the vicinity of atmospheric water vapor absorption lines. An open-path Tunable Diode Laser Absorption (TDLAS) system composed of narrow band (~300 kHz) diode laser fiber coupled to a 12" Ritchey-Chrétien transmit telescope has been used to study the atmospheric transmission characteristics of Cs DPALs over extended paths. The ruggedized system has been field deployed and tested for propagation distances of greater than 1 km. By scanning the diode laser across many free spectral ranges, many rotational absorption features are observed. Absolute laser frequency is monitored with a High Finesse wavemeter to an accuracy of less than 10 MHz. Phase sensitive detection is employed with an absorbance of less than 1% observable under field conditions.

Paper Details

Date Published: 24 February 2012
PDF: 8 pages
Proc. SPIE 8238, High Energy/Average Power Lasers and Intense Beam Applications VI; Atmospheric and Oceanic Propagation of Electromagnetic Waves VI, 82380I (24 February 2012); doi: 10.1117/12.906394
Show Author Affiliations
Christopher A. Rice, 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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