Compact Transverse Flow CO[sub]2[/sub] Laser With RF Excitation

W. Schock; Th. Hall; E. Wildermuth; K. Wessel; E. Gehringer; P. Schnee; F. Hadinger

doi:10.1117/12.950503

20 June 1989 Compact Transverse Flow CO₂ Laser With RF Excitation

W. Schock, Th. Hall, E. Wildermuth, K. Wessel, E. Gehringer, P. Schnee, F. Hadinger

Author Affiliations +

Proceedings Volume 1031, 7th Intl Symp on Gas Flow and Chemical Lasers; (1989) https://doi.org/10.1117/12.950503
Event: 7th International Symposium on Gas Flow and Chemical Lasers, 1988, Vienna, Austria

Abstract

The design and operation of a new 5/10 kW CO2 laser with unstable resonator and integrated RF power stag will be described. The system is characterized by a discharge power density. of 25 W/cm for cw operation and 100 W/cm3 for superpulse operation. The gas is circulated by three axial flow blowers. The volume of the laser system including the power stage is 1.8 x 1.7 x 1.6 m3. The output power can be controlled in the range between 10 and 100% using a 25 kHz pulse modulation and varying the duty cycle at constant power level. The beam quality and pointing stability was investigated. using a beam analyser (LBA) at the expanded far-field, generated by means of a concave mirror with large radius of curvature (R = 20 m). Good beam quality and pointing stability has been demonstrated for this transverse flow laser with RF excitation.

Citation Download Citation

W. Schock, Th. Hall, E. Wildermuth, K. Wessel, E. Gehringer, P. Schnee, and F. Hadinger "Compact Transverse Flow CO₂ Laser With RF Excitation", Proc. SPIE 1031, 7th Intl Symp on Gas Flow and Chemical Lasers, (20 June 1989); https://doi.org/10.1117/12.950503

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