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US 7,489,718 B2Granted
Matched impedance controlled avalanche driver
OwnerAlan E. Hillinventor
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Abstract
Controlled avalanche driver circuits and apparatuses for gas lasers. One embodiment typically delivers short, rapid, high voltage ionizing pulses in combination with an electric field whose magnitude is too low to sustain a normal glow discharge. The plasma is typically impedance matched with the pulse-forming network. Pre-ionization pulses may be generated. The circuits enable very high power, stable lasers.
Claims11
A method for lasing a gas, the method comprising the steps of:
- preionizing the gas;
- applying to the preionized gas a voltage pulse comprising a voltage sufficiently high enough to ionize the gas, thereby forming a plasma;
- matching an impedance of the plasma to an impedance of a pulse forming network;
- and
- pumping a laser transition in the plasma by applying to the plasma a pumping voltage less than a glow potential of the gas.
2 more elements
Dependencies are inferred from the claim text.