National Research Database of Zimbabwe

Dielectric barrier discharge CO2 TEA laser operated at frequencies up to 400 Hz

Baricholo, Peter (2011) Dielectric barrier discharge CO2 TEA laser operated at frequencies up to 400 Hz.

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Abstract

A dielectric barrier discharge CO2 TEA laser excited by a thyratron driven power supply has been developed and characterized. Laser output was observed at frequencies up to 25 Hz for an electrode separation of 10 mm with 1.8 mm suprasil glass covering the electrodes. At this gap separation, pulsed power output of about 9 W was detected for gas pressures between 100 and 400 mbar. The laser has a pulse duration was about 0.3 flS with a risetime of ~100 ns. Changing the electrode separation to 5 mm and using 1.4 mm suprasil glass dielectric increased the output power to 23 Wand enabled laser output to be observed at gas pressures up to 700 mbar and maximum pulse excitation frequencies of up to 400 Hz. The developed laser does not require water cooling since the system operates in burst pulse mode.

Item Type: Article
Uncontrolled Keywords: Dielectric barrier discharge
Subjects: UNSPECIFIED
Divisions: Universities > State Universities > National University of Science and Technology
Depositing User: Mr. Evans Katiyo
Date Deposited: 30 Nov 2015 23:01
Last Modified: 30 Nov 2015 23:01
URI: http://researchdatabase.ac.zw/id/eprint/1132

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