The optogalvanic effect as a power detector for high-power, fast-transverse-flow CO2 lasers
In this work, a new method for measuring the power of light beams generated by fast-tranverse-flow CO2 lasers is presented. It consists in measuring the temperature of the gas before and after the discharge zone under the conditions when the output mirror of the optical cavity is blocked or not. The...
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| Autores principales: | , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
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FIUBA
2018
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| Acceso en línea: | https://elektron.fi.uba.ar/elektron/article/view/40 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=40_oai |
| Aporte de: |
| Sumario: | In this work, a new method for measuring the power of light beams generated by fast-tranverse-flow CO2 lasers is presented. It consists in measuring the temperature of the gas before and after the discharge zone under the conditions when the output mirror of the optical cavity is blocked or not. Then, using a simple thermodynamic model, the emitted power is obtained. The method was tested in a continuous CO2 laser of the convective cooling type by transverse flow that can deliver a power up to 2 kW. The measured power agreed very well with that obtained with a commercial detector based on an absorbing material. |
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