Accession Number:

AD0905889

Title:

Q-Switched Evaluation of CaLaSOAP:Nd.

Descriptive Note:

Final rept. 15 Apr-15 Aug 72,

Corporate Author:

WESTINGHOUSE DEFENSE AND ELECTRONICS CENTER BALTIMORE MD

Personal Author(s):

Report Date:

1972-09-15

Pagination or Media Count:

108.0

Abstract:

This final technical report describes the results of a four-month program to investigate the thermo-optic and laser properties of NdLaSOAP as they relate to laser system design and operational characteristics. A major accomplishment of the program was the demonstration of EO Q-switching of NdLaSOAP at high average output powers and the determination of average power and single pulse energy limitations. In addition, experimental investigations and tradeoff analyses were conducted which clearly demonstrate the superiority of CaLaSOAPNd over other available solid state laser materials for repetitively Q-switched applications requiring Q-switched outputs of 500 to 1000 millijoules at repetition rates of 10 to 30 pulses per second. For the four laser rods tested during this contract, interferometric fringe counts and active laser loss measurements show that the optical quality of NdLaSOAP is as good as or better than commercially available neodymium laser materials. Evaluation of thermo-optic distortion at high average power has conclusively shown that NdLaSOAP lasers with average output powers in excess of 30 watts can be constructed and operated with beam divergence values as low as those presently available from YAGNd lasers. Lasing efficiency measurements and energy storage calculations indicate that in the 500 to 1000 millijoule regime, NdLaSOAP is capable of higher overall efficiencies than can be obtained using other available laser materials. Author

Subject Categories:

  • Lasers and Masers
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE