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Proceedings Paper

Chirp Measurements Of A Ten Joule Pulsed CO2 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. 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 10 microseconds and are useful in characterizing the device for use in radar applications. A heterodyne technique was used, mixing the oscillator signal with a cw laser operating on the P20 line, but offset approximately 40 MHz in order to resolve uncertainties in the sense of the frequency deviation. Chirp values of less than 400 kHz are observed during the first 10 μsec.

Paper Details

Date Published: 12 December 1989
PDF: 8 pages
Proc. SPIE 1181, 5th Conf on Coherent Laser Radar: Technology and Applications, (12 December 1989); doi: 10.1117/12.963761
Show Author Affiliations
Ethan D. Hoag, Laser Science, Inc. (United States)

Published in SPIE Proceedings Vol. 1181:
5th Conf on Coherent Laser Radar: Technology and Applications
James W. Bilbro; Christian Werner, Editor(s)

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