Random trigger control method, random trigger control system and laser system

Abstract

The invention provides a random trigger control method, a random trigger control system and a laser system. The random trigger control method comprises the following steps that a TRIG signal is received and the TRIG signal ispreprocessed; timing is started at the arrival moment of the rising edge of each TRIG signal, and a second light emitting signal is output; when it is judged that the next TRIG signal is not received within the time t1 from the beginning of timing, the first light emitting signal is output every ta time; when it is judged that the next TRIG signal is received within the time t1 from the beginning of timing, the first light emitting signal is output after tb time delay. Through the steps, the TRIG signal is not limited by the set frequency of the laser, the consistency of control logic is ensured, and the phenomenon of 'point loss' is avoided.

Description

technical field [0001] The present disclosure generally relates to the field of control, and specifically relates to a random trigger control method, a random trigger control system, and a laser system. Background technique [0002] The external control interface of the picosecond laser usually has a TRIG interface for receiving TRIG signals; the laser is equipped with an FPGA module, a primary optical fiber modulator and a secondary spatial modulator for light output; [0003] The FPGA module controls the first-level optical fiber modulator and the second-level spatial modulator to turn on by outputting the first optical signal and the second optical signal, respectively, and then controls the laser to output laser light. [0004] In the prior art, the laser trigger control method is as follows: firstly set the frequencies of the first optical signal and the second optical signal in the FPGA, wherein the first optical signal is an integer multiple of the second optical sign...

AI Technical Summary

Problems solved by technology

[0005] In this way, the frequency of the external control signal TRIG must match the set frequency of the light output signal, otherwise it will cause light output confusion and limit the frequency of the TRIG signal

On this basis, even if a laser fixed-frequency synchronization signal is added, the external signal is generated with reference to this synchronization signal. Although it can ensure the consistency of the light output time after each restart of the system (POD mode), the frequency of the TRIG signal should still be less than or equal to The set frequency of the laser output light signal; because of the existence of the set frequency of the laser, when the TRIG signal and the "set frequency" are not synchronized, there will be a point loss phenomenon

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