Pulse laser driving power supply system and driving method thereof

Abstract

The invention provides a pulse laser driving power supply system and a driving method thereof which are used for improving the control precision and the processing speed of a pulsed laser. The pulse laser driving power supply system comprises a main control module, a constant current driving module and a constant temperature control module. The main control module comprises a single chip microcomputer and an FPGA, and the single chip microcomputer is used for determining the corresponding electric power according to the preset laser output power, generating a driving signal according to the electric power and providing the driving signal to the constant temperature control module; the FPGA sends a temperature control instruction and a preset temperature to the constant temperature controlmodule; the constant temperature control module is used for outputting a driving current according to the driving signal to drive the LD to emit a laser beam; the constant temperature control module is used for controlling the working temperature of the LD in a set temperature range according to the preset temperature after receiving the temperature control instruction; and the FPGA is used for providing at least one Q-switched signal to the laser.

Description

technical field [0001] The invention relates to the technical field of power supply applications, in particular to a pulse laser driving power supply system and a driving method thereof. Background technique [0002] Lasers are widely used, including laser marking, laser welding, laser cutting, optical fiber communication, laser ranging, laser radar, laser weapons, laser discs, laser vision correction, laser beauty, laser scanning, laser mosquito killers and so on. [0003] A laser is a device capable of emitting laser light, including continuous lasers and pulsed lasers. Among them, pulsed lasers are called quasi-continuous lasers, which generate ms-level pulses with a duty cycle of 10%, which makes pulsed light have a peak power that is more than ten times higher than continuous light, which is very beneficial for applications such as drilling . [0004] With the development of laser technology, the demand for laser applications continues to increase, and the requirement...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the control accuracy and processing speed of high-power lasers cannot be satisfied, and provides a pulse laser drive power supply system and its drive method

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