Chirp Measurements Of A Ten Joule Pulsed CO2 Oscillator

Ethan D. Hoag

doi:10.1117/12.963761

12 December 1989 Chirp Measurements Of A Ten Joule Pulsed CO₂ Oscillator

Ethan D. Hoag

Proceedings Volume 1181, 5th Conf on Coherent Laser Radar: Technology and Applications; (1989) https://doi.org/10.1117/12.963761
Event: Fifth Conference on Coherent Laser Radar, 1989, Munich, Germany

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.

Citation Download Citation

Ethan D. Hoag "Chirp Measurements Of A Ten Joule Pulsed CO₂ Oscillator", Proc. SPIE 1181, 5th Conf on Coherent Laser Radar: Technology and Applications, (12 December 1989); https://doi.org/10.1117/12.963761

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available