УДК: 535.32 535.016

How phase dispersion of optical coatings affects intracavity second-harmonic generation of laser radiation

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Иночкин М.В., Беззубик В.В. Влияние фазовой дисперсии оптических покрытий на внутрирезонаторную генерацию второй гармоники лазерного излучения // Оптический журнал. 2014. Т. 81. № 10. С. 13–19.

Inochkin M.V., Bezzubik V.V. How phase dispersion of optical coatings affects intracavity second-harmonic generation of laser radiation [in Russian] // Opticheskii Zhurnal. 2014. V. 81. № 10. P. 13–19.

For citation (Journal of Optical Technology):

M. V. Inochkin and V. V. Bezzubik, "How phase dispersion of optical coatings affects intracavity second-harmonic generation of laser radiation," Journal of Optical Technology. 81(10), 565-570 (2014). https://doi.org/10.1364/JOT.81.000565

Abstract:

This paper discusses how antireflection and reflective optical coatings, as well as the position of a nonlinear crystal inside the cavity, affect intracavity second-harmonic generation. It is shown that phase dispersion of typical antireflection coatings and many reflective coatings is compensated. The phase dispersion of certain types of reflective coatings in this case can introduce a significant contribution to the overall phase dispersion. Dual-frequency reflective coatings are classified with respect to the size of the added part of the generalized phase of the laser wave and its second harmonic. The optimum combinations of types of reflective coatings and the positions of the nonlinear crystal relative to the end mirror are determined for use in lasers with intracavity second-harmonic generation.

Keywords:

multilayer interference coatings, intracavity second-harmonic generation, phase dispersion, lasers

Acknowledgements:

The authors express gratitude to N. R. Belashenkov for useful comments and discussion of this work and to L. V. Khloponin for help in carrying out the experiments, as well as to V. Sh. Aliev and B. M. Kruglov for kindly providing data on the structures of typical interference coatings used in practice.

OCIS codes: 140.3515

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