Negative branch hybrid resonator for COIL

Jürgen Handke; Thomas Hall; Frank Duschek; Karin Grünewald

doi:10.1117/12.669691

23 February 2006 Negative branch hybrid resonator for COIL

Jürgen Handke, Thomas Hall, Frank Duschek, Karin Grünewald

Proceedings Volume 6101, Laser Beam Control and Applications; 610124 (2006) https://doi.org/10.1117/12.669691
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

A rectangular negative branch off-axis hybrid resonator was coupled to a 10-kW class Chemical Oxygen-Iodine Laser (COIL). Various schemes of geometrical coupling between resonator and gain medium were investigated. The extracted power was 6.6 kW and reached about 70% of the output power for the COIL device in an optimized conventional stable resonator configuration. Experimentally measured margins for the sensitivity of resonator setup and alignment were found in close agreement with numerical calculations. Power density distributions were measured in the near field and in the far field. The divergence of the emitted laser beam in the unstable direction was lower than 2 times diffraction limited.

Citation Download Citation

Jürgen Handke, Thomas Hall, Frank Duschek, and Karin Grünewald "Negative branch hybrid resonator for COIL", Proc. SPIE 6101, Laser Beam Control and Applications, 610124 (23 February 2006); https://doi.org/10.1117/12.669691

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