Comparing Analytical And Numerical Laser Mode Predictions To Experimental Data For Large Volume Co2 Testbeds With Unstable Resonators

W. P. Latham Jr.; John D. German

doi:10.1117/12.933739

19 November 1982 Comparing Analytical And Numerical Laser Mode Predictions To Experimental Data For Large Volume Co₂ Testbeds With Unstable Resonators

W. P. Latham Jr., John D. German

Author Affiliations +

Proceedings Volume 0343, Laser Diagnostics; (1982) https://doi.org/10.1117/12.933739
Event: 1982 Technical Symposium East, 1982, Arlington, United States

Abstract

Experimental research for high energy lasers is currently accomplished with large volume CO₂ flowing gain cells and unstable resonator mirror configurations which often include conical optical elements. There are a number of diagnostics available throughout the HEL community. However, there has never been a complete comparison between theoretical results and experiment, because of the limitations in diagnostic equipment and the complexity of current resonator designs. Analytical and numerical models for CO₂ gain cells with unstable resonators also have limitations. As experimental configurations and theoretical models increase in complexity, comparison between the two becomes increasingly difficult because the number of variables is too large. In this presentation, we discuss the unknown variables and problems in making a complete comparison. A list of available diagnostic equipment and its limitations is presented. Some results from analytical and numerical models are compared to data. Finally, a summary of requirements for obtaining a reliable and complete comparison between experiment and theory is given.

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W. P. Latham Jr. and John D. German "Comparing Analytical And Numerical Laser Mode Predictions To Experimental Data For Large Volume Co₂ Testbeds With Unstable Resonators", Proc. SPIE 0343, Laser Diagnostics, (19 November 1982); https://doi.org/10.1117/12.933739

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