SAIP 2011 Support
Dielectric barrier discharge CO2 TEA laser operated at frequencies up to 400 Hz
Presented by Mr. Peter BARICHOLO on 13 Jul 2011 from 11:00 to 11:15
Type: Oral Presentation
Track: Track C - Lasers, Optics and Spectroscopy
<p> 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. Changing the electrode gap separation to 5 mm and using 1.4 mm Suprasil glass dielectric increased the output power to 23 W and 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.
Level (Hons, MSc, PhD, other)?
Consider for a student award (Yes / No)?
- Mr. Peter BARICHOLO National University of Science and Technology, Stellenbosch University
- Mr. Timo STEHMANN University of Stellenbosch
- Dr. Dumisani John HLATYWAYO National University of Science and Technology, Bulawayo, Zimbabwe
- Prof. Erich ROHWER Laser Research institute, University of Stellenbosch
- Prof. Mike COLLIER National University of Science and Technology