Excitation circuit for laser systems, especially for te-high...

Details Excitation circuit for laser systems, especially for te-high... Excitation circuit for laser systems, especially for te-high...

H - Electricity

01

S

315/24

H01S 3/00 (2006.01) H01S 3/0971 (2006.01)

Patent

CA 1232937

Abstract of the Disclosure. An excitation circuit for laser systems with excitation by a maximally homogeneous, arc-free capacitor discharge in a gas space of a laser head between at least two mutually spaced-apart laser electrodes includes at least one fast acting high-voltage switch activatable via a pulse-forming network connected thereto for generating high-voltage pulses at the laser electrodes; first and second stripline capacitors and appertaining equivalent inductances opera- tively associated with the pulse-forming network and the high-voltage switch and the laser head; preionization devices operatively connected to the laser electrodes and having a plurality of members of at least one of surface discharge gap members and preionization rod members, togeth- er with auxiliary circuits connected thereto, the auxiliary circuits being connected to the pulse-forming network for providing all auxiliary voltages and currents for operating the preionization devices, the auxiliary circuits being connectible, in addition to ground potential of the ex- citation circuit, to at least one of three discrete circuit points of which one point is connected to a high-voltage input of the pulse-forming network, a second point is connected to a high-voltage branching point of the high-voltage switch and one of the stripline capacitors, and a third point is connected directly to the laser electrode having high potential, for controlling the instant of onset of the laser gas discharge and the time relationship between applying a high-voltage pulse to the laser electrodes, on the one hand, and applying a firing pulse to poles of the preionization devices, on the other hand. HLL: uw

452155

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