H - Electricity – 01 – S
Patent
H - Electricity
01
S
345/38
H01S 3/22 (2006.01) H01S 3/0971 (2006.01)
Patent
CA 1200001
ABSTRACT A.D.C. glow discharge system, stabilized by much lower pulse repetition rate (1KHZ - 5KHZ) and power (<5% of sustainer power) than the required for pulse-sustained discharge, operates as a self-sustained discharge at lower voltage than usual due to lowered work functions, increased secondary emission and effec- tive ionization. Said pulse-stabilized discharge provides an extended stable operation suitable for high power gas lasers. A water ballasted electrode unit adapted to be used therein, having individually ballasted electrode elements with discrete water resistors so formed when water flows, eliminates temporally varying spatial current fluctuations and exhibits such unique characteristics as; providing capacitive coupling for a pulse, and resistive coupling for D.C., and self-optimizing current uniformity with the operating time. Said electrode unit, ar- ranged to have the electrode elements protrude into the discharge volume, enlarges the effective diameter of the electrode elements resulting in a uniform discharge. Further improvements to said electrode unit result in a positive means of removing the heat from the cathode fall region, and an economical and efficient means of manufacturing. This invented electrode unit is proved to be the best for a pulse-stabilized glow discharge system and can be scaled up by a building block concept to produce super high power gas lasers. The high power laser system employing said discharge principle and electrode units may be referred to as a S.O.A.P. (Self-Optimizing, Abnormal-glow, Pulse-stabilized) laser.
405873
Nam Kyong H.
Oyen Wiggs Green & Mutala Llp
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