Line selected performance of a cw HF laser

Shawn J. Gordon; Lee H. Sentman; David S. Jenkins

doi:10.1117/12.270117

4 April 1997 Line-selected performance of a cw HF laser

Shawn J. Gordon, Lee H. Sentman, David S. Jenkins

Proceedings Volume 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference; (1997) https://doi.org/10.1117/12.270117
Event: XI International Symposium on Gas Flow and Chemical Lasers and High Power Laser Conference, 1996, Edinburgh, United Kingdom

Abstract

A diffraction grating was used in the Littrow and off-Littrow configurations to select the lines in a cw HF stable resonator. The beam is outcoupled through a partially reflective mirror. Single line Littrow, single line off- Littrow, and off-Littrow line pair performance were measured. For the first time, as far as we know, in the operation of chemical lasers, Littrow and off-Littrow lines lased simultaneously. Two line (one Littrow line, one off-Littrow line) and three line (one Littrow line, two off-Littrow lines) Littrow/off-Littrow line combinations were demonstrated. The grating reflectivity was a strong function of the polarization of the laser beam. Data indicated that the grating generated a beam whose polarization was perpendicular to the grating grooves.

Citation Download Citation

Shawn J. Gordon, Lee H. Sentman, and David S. Jenkins "Line-selected performance of a cw HF laser", Proc. SPIE 3092, XI International Symposium on Gas Flow and Chemical Lasers and High-Power Laser Conference, (4 April 1997); https://doi.org/10.1117/12.270117

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