Improved DF performance of a repetitively pulsed HF/DF laser using a deuterated compound

Brunet, H.; Mabru, Michel; Vannier, C.

doi:10.1117/12.270115

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…It was concluded that the sorption of the reaction products and the compensation of the working mixture with optimal composition are essential conditions for prolonged stable operation of a non-chain pulsed HF laser. In fact, most of the self-contained HF laser systems following this adopted these suggestions [21][22][23][24][25]. However, little information on energy sustainability characteristics has been revealed.…”

Section: Introductionmentioning

confidence: 99%

Pulse energy sustainability of a burst mode closed-cycle pulsed HF chemical laser

Tao¹,

Shen²,

Zhu³

et al. 2019

Laser Phys.

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Pulse energy sustainability of a burst mode closed-cycle pulsed HF laser is investigated with a simple theoretical model considering gas replenishment and chemical scrubbing. The effects of reactant gas consumption and de-excitation of excited HF by ground state HF are studied quantitatively. Also, experiments are carried out for comparison and validation. Simulation and experiments show that, in the burst mode operation, the energy loss caused by gas consumption is about 0.06-0.12 mJ per pulse while that induced by the de-excitation process is about 0.22-0.29 mJ per pulse, demonstrating that chemical scrubbing should play a more important role in the energy preservation of non-chain pulsed HF lasers.

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Section: Introductionmentioning

confidence: 99%

Pulse energy sustainability of a burst mode closed-cycle pulsed HF chemical laser

Tao¹,

Shen²,

Zhu³

et al. 2019

Laser Phys.

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“…Brunet investigated the impact of the different D atom donor on the output energy of non-chain pulsed DF laser by using the phototriggered discharge technique, and with C 6 D 12 a single pulse output energy of 8J was obtained [7] . Tarasenko and others from High Current Electronics Institute of the Russian Academy of Sciences did a large number of experimental studies on electro-optical conversion efficiency of non-chain pulsed DF laser, and by changing the parameters of the storage discharge circuit the electro-optical conversion efficiency was up to 6% was got [8] .By employing self-initiated discharge, Firsov from General Physics institute of Russian Academy of Sciences, obtained single pulse energy of 325J and electro-optical conversion efficiency of 3.4% [9] .…”

Section: Introductionmentioning

confidence: 99%

Experimental study on non-chain electric-discharge pulsed DF laser

et al. 2013

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The working mechanism of the non-chain pulsed DF laser is analyzed in this paper, then the glow discharge with the method of UV-preionized discharge is displayed, and finally the experimental investigation on the output characteristics of non-chain pulsed DF laser is done. With SF 6 , which is non-toxic and non-corrosive, and D 2 as the active medium, the dependence of the output characteristics of pulsed DF laser on the gas mixture ratio and the total pressure are investigated. In the experiment, the optimal gas mixture ratio of SF 6 -D 2 and total pressure are 10:1 and 10.5kPa, respectively. At the same time, by making a measurement on the output spectrum of DF laser with a DF laser spectrum analyzer, 17 P-branch transition lines are achieved and the majority of output energy is concentrated on several lines near the 3.876μm line. The laser beam divergence angles in horizontal and vertical directions are 1mrad by using the laser spot ablation method. At the charging voltage of 39kV, under the best working condition(SF 6 : D 2 = 10:1, P total = 10.5kPa), the maximum single pulse output energy of 3.58J, pulse duration of 215ns, peak power of 16.65 MW, and electro-optical conversion efficiency of 2.08%, are obtained.

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Improved DF performance of a repetitively pulsed HF/DF laser using a deuterated compound

Cited by 2 publications

References 2 publications

Pulse energy sustainability of a burst mode closed-cycle pulsed HF chemical laser

Pulse energy sustainability of a burst mode closed-cycle pulsed HF chemical laser

Experimental study on non-chain electric-discharge pulsed DF laser

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