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Proceedings Paper

Thyristor driven pulser for multikilowatt lasers
Author(s): Pieter L. Swart; Hubertus M. von Bergmann
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Paper Abstract

Excimer- and CO2 TEA pulse lasers require excitation pulses with voltage rise times of 100 ns and peak voltage levels of more than 40 kV for efficient excitation. The corresponding electrical inputs extend to multikilowatt levels of average powers. To achieve these levels, primary switching must be carried out at tens of kA and multiple kV levels and at repetition rates of several kHz. These requirements place extreme demands on the active switching elements employed in the pulser for primary pulse conversion. Under these conditions, thyratron lifetimes are drastically limited and endeavours to overcome these limitations have led to the development of an all solid state driven pulser. The solid state driven pulser employs a modular, thyristor switched, pulse power supply unit for primary pulse conversion and a four stage series magnetic pulse compressor to transform the pulses into a domain compatible with excimer laser excitation.

Paper Details

Date Published: 1 February 1991
PDF: 4 pages
Proc. SPIE 1397, 8th Intl Symp on Gas Flow and Chemical Lasers, (1 February 1991); doi: 10.1117/12.25940
Show Author Affiliations
Pieter L. Swart, Rand Afrikaans Univ. (South Africa)
Hubertus M. von Bergmann, Rand Afrikaans Univ. (South Africa)

Published in SPIE Proceedings Vol. 1397:
8th Intl Symp on Gas Flow and Chemical Lasers
Concepcion Maroto Domingo; Jose M. Orza, Editor(s)

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