Abstract
The design and performance of a closed-cycle repetitively pulsed DF laser are described. The Fitch circuit and thyratron switch are introduced to realize self-sustained volume discharge in SF6–D2 mixtures. The influences of gas parameters and charging voltage on output characteristics of non-chain pulsed DF laser are experimentally investigated. In order to improve the laser power stability over a long period of working time, zeolites with different apertures are used to scrub out the de-excitation particles produced in electric discharge. An average output power of the order of 100 W was obtained at an operating repetition rate of 50 Hz, with amplitude difference in laser pulses <8 %. And under the action of micropore alkaline zeolites, the average power fell by 20 % after the laser continuing working 100 s at repetition frequency of 50 Hz.
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Acknowledgments
This work was supported by the International Cooperation Special Fund from the Ministry of Science and Technology, PRC (No. 2011DFR10320), and Innovation Foundation from Chinese Academy of Sciences (No. CXJJ-11-Q80).
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Pan, Q., Xie, J., Wang, C. et al. Non-chain pulsed DF laser with an average power of the order of 100 W. Appl. Phys. B 122, 200 (2016). https://doi.org/10.1007/s00340-016-6475-z
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DOI: https://doi.org/10.1007/s00340-016-6475-z