Dual use power supply configuration for the double pulsed...

H - Electricity – 05 – B

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H05B 43/00 (2006.01) H01S 3/092 (2006.01) H01S 3/11 (2006.01)

Patent

CA 2117045

A dual pulse flashlamp-pumped laser system (50) having a power supply circuit (62) which not only charges two capacitors (C1, C2) which are successively discharged to produce two laser pulses, but also supplies a simmer current through the flashlamp (58) between the pulses. The first laser pulse follows a trigger pulse on a flashlamp trigger wire (60) which ionizes the flashlamp gas, permitting a first capacitor (C1) to discharge through the flashlamp (58). The simmer current maintains the flashlamp gas in an ionized state, so that a second trigger pulse is not needed. The second laser pulse follows an SCR-controlled discharge of the second capacitor (C2) through the flashlamp (58).

Système laser à deux impulsions pompé par lampe-éclair (50), ayant un circuit d'alimentation électrique (62) qui non seulement charge deux condensateurs (C1, C2) qui sont successivement déchargés pour produire deux impulsions laser, mais qui fournit en outre un courant d'excitation au moyen de la lampe-éclair (58) entre les impulsions. La première impulsion laser suit une impulsion de déclenchement sur un fil de déclenchement de lampe-éclair (60) qui ionise le gaz de la lampe-éclair, ce qui permet à un premier condensateur (C1) de se décharger par l'intermédiaire de la lampe (58). Le courant d'excitation maintient ionisé le gaz de la lampe-éclair, de sorte qu'une deuxième impulsion de déclenchement n'est pas nécessaire. La deuxième impulsion laser suit une décharge commandée par thyristor du deuxième condensateur (C2) par l'intermédiaire de la lampe-éclair (58).

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