Generating laser pulses

US11025035B2 · kind B2 · utility

Assignee

• TRUMPF LASER GMBH · DE

Inventors

• Rainer Flaig · Eschbronn, DE
• Oliver Rapp · Eschbronn, DE
• Daniel Glunk · Fluorn-Winzeln, DE

Key dates

• Filing date: Jan 11, 2019
• Grant date: Jun 1, 2021
• Expiry date: Jan 11, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/06216
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A laser pulse generator includes a pulse shape generation device and a clock unit. The generation device includes a pulse shape repository, a digital-to-analog converter (DAC), a first terminal for connecting a start signal line, a second terminal for connecting a clock signal line, and a third terminal for connecting a pulse line. The first and second terminals are connected to the pulse shape repository and the DAC such that when a predefined start signal is present, data is transferred from the pulse shape repository to the DAC and converted by the DAC into an output pulse, for example, at a rate of a clock signal. The output pulse is supplied at the third terminal for actuating a driver of a laser diode. The clock unit is connected to the second terminal via the clock signal line and includes a reset terminal connected to the start signal line.