Digital laser pulse shaping module and system

H - Electricity – 01 – S

Patent

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H01S 3/10 (2006.01) H03K 5/01 (2006.01)

Patent

CA 2727985

A digital pulse shaping module for controlling a pulsed laser oscillator according to a digital input waveform is provided. The pulse shaping module includes a clock generator generating a plurality of phase-related clock signals and a shape generator which outputs a digital shape signal corresponding to the digital input waveform in Double Data Rate in response to the clock signals. A DAC converts the digital shape into an analog shape signal. The analog shape signal may be used to control the current source of a laser seed source or modulators in the laser oscillator shaping a seed light signal. Optionally, the pulse shaping module may also output a gate control signal having a predetermined timing relationship with respect to the digital shape signal.

Cette invention concerne un module numérique de mise en forme dimpulsions conçu pour commander un oscillateur laser à impulsions en fonction dune forme donde dentrée numérique. Le module de mise en forme dimpulsions comprend un générateur dhorloge générant une pluralité de signaux dhorloge en relation de phase ainsi quun générateur de forme qui émet en sortie un signal de forme numérique correspondant à la forme donde dentrée numérique à double vitesse de transfert en réaction aux signaux dhorloge. Un CNA convertit le signal de forme numérique en un signal de forme analogique. Le signal de forme analogique peut être utilisé pour commander la source de courant dune source laser germe ou de modulateurs dans loscillateur laser mettant en forme un signal lumineux germe. Optionnellement, le module de mise en forme dimpulsions peut également émettre en sortie un signal de commande de grille ayant un rapport de synchronisation prédéterminé avec le signal de forme numérique.

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