Electric-discharge pulsed F2+ H2(D2) chain reaction HF/DF laser with a 4.2-L active volume

Klimuk, Evgenii A; Kutumov, Konstantin A; Troshchinenko, Georgiy A.

doi:10.1070/qe2010v040n02abeh013771

Cited by 4 publications

(1 citation statement)

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“…[5][6][7][8] Numerous researchers in the field of lasers have used arc heaters as a laboratory tool for development of various laser systems such as Gas Dynamic Laser (GDL) and Hydrogen Fluoride/Deuterium Fluoride (HF/DF) chemical lasers. [9][10][11][12] The development of advanced computational techniques have enabled study of arc plasma heaters to understand the underlying mechanics in terms of the developed temperature field for the heat fluxes produced along with the variation in velocity field and material properties. [13][14][15][16] The basic arc behavior is studied and lasing experiments are reported on 50 kW arc tunnel.…”

Section: Introductionmentioning

confidence: 99%

Performance and Control of 50 kW Arc Heater for Chemical Lasers

Sagar¹,

Kant²,

Singhal³

et al. 2012

j adv phys

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Electric arc is a safe alternative to combustion for dissociation of SF 6 required for optimizing the experiments related to development of hydrogen fluoride/deuterium fluoride (HF/DF) laser. The plasma arc discharge in an arc heater/generator is essentially employed for inducing thermal dissociation of SF 6 for production of fluorine atoms. Another accrued advantage of using arc heater is that there is a possibility of varying the composition of the lasing mixture independently of the pressure and temperature of its constituents. However, in order to use arc heater for lasers applications, it is not only necessary to have an efficient arc heater, but interfacing it with the Data acquisition system and the laser tunnel is equally important. The paper reports the basic design and performance of 50 kW arc plasma tunnel relevant for hydrogen fluoride/deuterium fluoride (HF/DF) laser applications. Complete instrumentation required for testing and its integration with the simulated laser tunnel has been implemented. The arc behavior has been studied on the developed 50 kW arc heater with Nitrogen using a dedicated data acquisition system employing fibre optics link to cater for electromagnetic noise and hostile environment. The 50 kW arc generator should serve as a versatile tool for optimizing lasers parameters such as gas flow rate, pressure, temperature and Mach number for a kilowatt HF/DF Laser.

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