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Diffusion-cooled CO2-laser with coaxial high frequency excitation and internal axicon

: Ehrlichmann, D.; Habich, U.; Plum, H.-D.


Journal of Physics. D. Applied Physics 26 (1993), S.183-191
ISSN: 0022-3727
Fraunhofer ILT ()
density; discharge; limitation; polarization; propagation; radiation; resonator; symmetry

A report on the design and performance of a coaxial laser system with a stable resonator with internal axicon is given. Efficient diffusion cooling is obtained by using an annular transverse high- frequency excited discharge. Experimental results are compared with the results of a loaded resonator model that takes tilted mirrors into account. The agreement between theory and experiment for extraction efficiency, alignment sensitivity, polarization and mode structure is very good.