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Multiwavelength Q-switched CO2 laser with continuous discharge

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Abstract

A low-pressure (20 mbar) CO2 laser allows to extract pulses at several selected wavelengths simultaneously from the same active medium. We demonstrated this, using an industrial laser modified by a Q-switch and a resonator with two branches. In one branch the wavelengths are spatially separated, whereas in the other they oscillate in one common transverse mode. We designed a multi-wavelength resonator which requires a single additional reflector compared to usual laser cavities. It provided tunable oscillation at six wavelength simultaneously.

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Fuß, W., Göthel, J., Kompa, K.L. et al. Multiwavelength Q-switched CO2 laser with continuous discharge. Appl. Phys. B 55, 65–70 (1992). https://doi.org/10.1007/BF00348616

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  • DOI: https://doi.org/10.1007/BF00348616

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