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Study of the Q-switching regimes of the loop cavity of a Nd:YAG laser using an external plasma mirror

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Лебедев В.Ф. Исследование режимов модуляции добротности петлевого резонатора Nd:YAG лазера внешним плазменным зеркалом // Оптический журнал. 2017. Т. 84. № 2. С. 19–27.

Lebedev V.F. Study of the Q-switching regimes of the loop cavity of a Nd:YAG laser using an external plasma mirror [in Russian] // Opticheskii Zhurnal. 2017. V. 84. № 2. P. 19–27.

For citation (Journal of Optical Technology):

V. F. Lebedev, "Study of the Q-switching regimes of the loop cavity of a Nd:YAG laser using an external plasma mirror," Journal of Optical Technology. 84(2), 82-88 (2017). https://doi.org/10.1364/JOT.84.000082

Abstract:

This paper discusses the self-modulation regimes of a multiloop cavity with external optical action initiated by the reflection of the laser beam’s focused radiation from the laser target plasma created by it. The self-modulation regime does not have a distinct threshold character. It is found that an intense Q-switching regime is characterized by the presence of a mode-locking regime. It is demonstrated that the self-Q-switching regime of a loop cavity can be used to automatically identify substances by the method of laser-spark emission spectroscopy.

Keywords:

phase conjugation, multiloop cavity, Q-switching regime, laser plasma, laser-spark emission spectroscopy

Acknowledgements:

The author is grateful to L. B. Kochin for participating in the first experiment on the observation of the self-modulation regime of a cavity based on the target plasma of the laser and to G. V. Burkovsky for help in adjusting the layout of the multiloop cavity.

The research was supported by the Russian Scientific Foundation (14-23-00136).

OCIS codes: 140.3535, 140.3540, 140.3410, 140.3480, 300.6365

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