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Proceedings Paper

Chirp Measurements Of A Ten Joule Pulsed CO[sub]2[/sub] Oscillator
Author(s): Ethan D. Hoag
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Paper Abstract

Chirp measurements have been conducted on the pulsed output of an unstable resonator oscillating on the P20 line of the 10.6 micron band of an e-beam sustained CO2 gain medium. A heterodyne method was used, mixing the oscillator signal with a cw laser operating on the same line. The mode volume was approximately 5 liters at a pressure between 1/3 and 1/2 atm. The measurements were conducted at pulse lengths of the order of 20 microseconds and are useful in characterizing the device for use in radar applications. Chirp values of less than 1 MHz are observed during the first 10 μ sec, in the remainder of the pulse, values of several MHz are observed, with decreasing frequency.

Paper Details

Date Published: 28 July 1989
PDF: 5 pages
Proc. SPIE 1042, CO2 Lasers and Applications, (28 July 1989); doi: 10.1117/12.951264
Show Author Affiliations
Ethan D. Hoag, Laser Science, Inc (United States)


Published in SPIE Proceedings Vol. 1042:
CO2 Lasers and Applications
James D. Evans; Edward V. Locke, Editor(s)

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