Accession Number : ADA266431


Title :   Progress Report Number 3 for May 16-June 15, 1993 on Contract Number N00014-93-C-0051 (North Texas Research and Development Corp.)


Corporate Author : NORTH TEXAS RESEARCH AND DEVELOPMENT CORP DENTON


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a266431.pdf


Report Date : 25 Jun 1993


Pagination or Media Count : 20


Abstract : Additional substantial experimental progress has been made, in the third month of the project, in setting up equipment and testing for producing chaotic behavior with a CO2 laser. The project goal is to synchronize and control chaos in CO2 and other lasers, and thereby increase the power in ensembles of coupled laser sources. Numerous investigations into chaos regime have been made, a second CO2 laser has been brought on stream, work is progressing in the fourth month toward coupling the two lasers and control of the first laser. It is also intended to submit at least two papers to the Second Experimental Chaos Conference which is supported by the Office of Naval Research. Abstracts to those two papers are attached. Last month's report discussed the experimental investigation of nonlinear dynamics of CO2 lasers which involved a new technique of inducing chaos. In this new technique, an acoustically modulated feedback of the laser light was used and led to chaotic dynamics at a very low modulation frequency of 375 Hz. Since then, new results have been obtained by an Electro-Optical Modulation (EOM) technique. In the new setup, the electro-optical modulator is placed in an external cavity outside the laser.


Descriptors :   *CHAOS , *GAS LASERS , *CARBON DIOXIDE LASERS , ELECTROOPTICS , SEMICONDUCTOR LASERS , ACOUSTICS , OPTICAL PROCESSING , MODULATION , EXTERNAL , FEEDBACK , DYNAMICS


Subject Categories : Lasers and Masers
      Electricity and Magnetism
      Optics
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE