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A New Automated Trigger Circuit for a Pulsed Nd: YAG Laser

Abstract : The power supply of flash lamp-pumped a Nd: YAG solid-state laser basically consists of a trigger circuit which initiate the ionization of the gas into the lamp, a simmer circuit that keeps the ionized gas with a low-level dc current and a main discharge circuit where a storage capacitor is discharged into a flash lamp to pump the Nd:YAG laser. The impedance of the flash lamp presents a nonlinear variation and the gas deionization which can occur between two pulses laser, leading to another manual triggering operation. To overcome this operation, we give in this paper a new automated trigger circuit activated by a delivered signal from the simmer circuit. This circuit is simple for implementation and need just few components. It has been simulated by PSpice software and validated by experimental results.
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Fatah Almabouada, Djelloul Louhibi, Abderrahmane Haddouche, Abdelkader Noukaz, Ramdan Beggar. A New Automated Trigger Circuit for a Pulsed Nd: YAG Laser. First IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS), Feb 2010, Costa de Caparica, Portugal. pp.557-564, ⟨10.1007/978-3-642-11628-5_62⟩. ⟨hal-01060782⟩

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