CW chemical HF/DF laser operating in the Q-switch mode

M. A. Azarov; B. S. Alexandrov; V. I. Kuprenyuk; Yu. P. Maximov; V. I. Mashendzhinov; A. Yu. Rodionov; M. A. Rotinian; V. V. Sudarikov; N. E. Tret'jakov; I. A. Feodorov; A. L. Etzina

doi:10.1117/12.739099

26 April 2007 CW chemical HF/DF laser operating in the Q-switch mode

M. A. Azarov, B. S. Alexandrov, V. I. Kuprenyuk, Yu. P. Maximov, V. I. Mashendzhinov, A. Yu. Rodionov, M. A. Rotinian, V. V. Sudarikov, N. E. Tret'jakov, I. A. Feodorov, A. L. Etzina

Author Affiliations +

Proceedings Volume 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; 63462N (2007) https://doi.org/10.1117/12.739099
Event: XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2006, Gmunden, Austria

Abstract

The numerical end experimental study of the energy and temporal characteristics of the output radiation of the CW medium-scale chemical HF/DF-laser with mechanical modulation of the optical resonator quality by the mirror rotation with frequency up to 1 kHz is carried out. In experiment, a peak power of the laser radiation pulses has exceeded the radiation power in CW mode of the HF-laser operation not less than in four times. The average power in repetitively pulsed mode is lower than one in CW mode, but it grows with increase of the modulation frequency. Time of the complete recovery of a small signal gain of the active medium, which is about 6 - 7 &mgr;s, is determined. Two numerical models are developed, which describe the dynamics of the laser oscillation in a mode of the resonator quality modulation for both HF- and DF-laser, some features of their operation are analyzed using these models.

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M. A. Azarov, B. S. Alexandrov, V. I. Kuprenyuk, Yu. P. Maximov, V. I. Mashendzhinov, A. Yu. Rodionov, M. A. Rotinian, V. V. Sudarikov, N. E. Tret'jakov, I. A. Feodorov, and A. L. Etzina "CW chemical HF/DF laser operating in the Q-switch mode", Proc. SPIE 6346, XVI International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 63462N (26 April 2007); https://doi.org/10.1117/12.739099

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KEYWORDS

Resonators

Mirrors

Modulation

Pulsed laser operation

Continuous wave operation

Laser resonators

Chemical lasers

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