The optogalvanic effect as a power detector for high-power, fast-transverse-flow CO2 lasers

Authors

  • Guillermo Daniel Santiago Universidad de Buenos Aires
  • Violeta D'accurso CITEDEF

DOI:

https://doi.org/10.37537/rev.elektron.2.1.40.2018

Keywords:

CO2 laser, high power, fast transverse flow

Abstract

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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References

M. G. Gonzalez, I. Rios, V. D’Accurso, G. D. Santiago, and C. Rosito, “Homogeneización del bombeo en láseres de CO2, de flujo rápido transversal,” Anales AFA, vol. 14, pp. 76–78, 2002.

M. G. Gonzalez and G. D. Santiago, “Operational characteristics of different electrode systems in fast- transverse-flow co2 lasers,” Proc. SPIE, vol. 5622, pp. 261–266, 2004.

M. G. Gonzalez, I. Rios, V. D’Accurso, G. D. Santiago, and C. Rosito, “An analytical approach to the design of electrodes in high-power, fast-transverse-flow co2 lasers,” Opt. Laser Technol., vol. 37, pp. 615–622, 2005.

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Published

2018-06-08

Issue

Vol. 2 No. 1 (2018)

Section

Optoelectronics and Microelectronics

License

The authors who publish in this journal agree with terms established in the license Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

How to Cite

[1]
G. D. Santiago and V. D'accurso, “The optogalvanic effect as a power detector for high-power, fast-transverse-flow CO2 lasers”, Elektron, vol. 2, no. 1, pp. 12–15, Jun. 2018, doi: 10.37537/rev.elektron.2.1.40.2018.