One-color operation of an RF excited CO<sub>2</sub> laser

Dorota A. Wojaczek; Edward F. Plinski; Jerzy S. Witkowski

doi:10.1117/12.644322

22 February 2006 One-color operation of an RF excited CO₂ laser

Dorota A. Wojaczek, Edward F. Plinski, Jerzy S. Witkowski

Proceedings Volume 6101, Laser Beam Control and Applications; 61010E (2006) https://doi.org/10.1117/12.644322
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

The paper gives an algorithm for elaboration of the RF excited slab-waveguide CO₂ laser working on one chosen emission line in a pulse regime. The solution of the problem bases on an RF transversal excitation in a slab-waveguide laser structure and laser signature phenomenon. The structure gives a homogeneous distribution of the excited laser plasma along the electrodes. The plasma in the structure is stable and reproducible from the pulse to pulse comparing to conventional tube lasers, and particularly to flow dynamic lasers. On the other hand, the applied unstable kind optical resonator produces a single-mode operation by definition. It suppresses higher modes in the laser cavity. The only problem are parasitic "hooting modes" created along the waveguide direction - between electrodes. But usually they do not bring too much perturbations to a spectral contents of the laser output radiation. The problem of the one-color operation of the laser can be solved by careful selection of the laser signature. The paper shows the results of the experiments, and gives the methodology to design the CO₂ laser in a pulse regime operating on one chosen emission line. Controlled two-color and multi-color pulsed operations are also considered. The results can be applied to design lasers for the trace gas analysis around of 10 or 9 μm or other spectral devices. It can be also applied for material processing of the media sensitive for the wavelength of the laser radiation.

Citation Download Citation

Dorota A. Wojaczek, Edward F. Plinski, and Jerzy S. Witkowski "One-color operation of an RF excited CO₂ laser", Proc. SPIE 6101, Laser Beam Control and Applications, 61010E (22 February 2006); https://doi.org/10.1117/12.644322

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KEYWORDS

Pulsed laser operation

Gas lasers

Carbon monoxide

Laser resonators

Mirrors

Optical resonators

Ferroelectric materials

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