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Accession Number:
AD0743491
Title:
Investigation of Nonlinear Propagation and Chirping of Short CO2 Laser Pulses.
Corporate Author:
UNITED AIRCRAFT RESEARCH LABS EAST HARTFORD CONN
Report Date:
1972-04-30
Abstract:
The research investigations have led to the development of an acousto-optic modulator for mode-locking the high pressure CO2 laser. Nanosecond pulses have been generated with peak powers of about 25 Megawatts, the high peak power resulting from low insertion loss Brewster-angled germanium modulator. A photon-drag detector with a response time of 0.3 nsec was also developed for observing the mode-locked pulses. The design of a solid-cathode double-discharge electrically pulsed CO2 laser is described. Preliminary studies of thin film GaAs waveguides for 10.6 micron wavelength radiation have been undertaken with a view to the development of future modulators. A continuing semi-empirical design approach has resulted in an operational, though still short-lived, flowing copper vapor laser based on a continuous evaporation-condensation flow cycle.
Descriptive Note:
Annual summary rept., 1 Apr 71-31 Mar 72,
Supplementary Note:
See also AD-722 812.
Pages:
0101
Contract Number:
N00014-69-C-0308
File Size:
0.00MB
