WO2020094115A1 - Laser, laser generation method, and computer-readable storage medium - Google Patents

Abstract

Provided are a laser (100) and a laser generation method, relating to the technical field of photoelectricity. The laser (100) comprises: a controller (120), M paths of light source modules (130) connected to the controller (120), and a beam combiner (140) connected to the M paths of light source modules (130), wherein M is an integer greater than one. The controller (120) is used for sending a corresponding pulse control signal set to each path of light source module (130) of the M paths of light source modules (130); each path of light source module (130) is used for outputting one path of laser pulse according to the corresponding pulse control signal set, and the M paths of light source modules (130) output M paths of laser pulses in total; and the beam combiner (140) is used for synthesizing the received M paths of laser pulses, and acquiring and outputting one path of output laser pulse which meets preset requirements. By using the corresponding combination method for M pulses, the capacity of the output laser pulse can be the sum of the energy of M pulses, and the energy, the average power and the duration of the output laser pulse are greatly increased, so that the output laser pulse can meet the usage requirements.

Description

Laser, laser generating method and computer readable storage medium

Related applications cross reference

This application requires the priority of the Chinese patent application with the application number 201811328291.1 and the name "Laser and Laser Generation Method" submitted to the China Patent Office on November 8, 2018, the entire content of which is incorporated by reference in this application.

Technical field

The present application relates to the field of optoelectronic technology, in particular, to a laser, a laser generation method, and a computer storage medium.

Background technique

Pulsed fiber lasers are widely used in material surface processing, thin metal cutting / welding and other applications due to their advantages of high flexibility, maintenance-free, low energy consumption, and high beam quality. However, the average power, pulse energy and pulse width of the pulsed fiber lasers in the prior art are gradually unable to meet the growing use demands put forward by the industry for the average power, pulse energy and pulse width.

Summary of the invention

The purpose of the present application includes providing a laser and a laser generating method, which can effectively improve the power, pulse energy and pulse width of the pulse fiber laser in the prior art.

In order to at least partially achieve the above objects, the embodiments of the present application are implemented as follows:

An embodiment of the present application provides a laser, including: a controller, an M-channel light source module connected to the controller, and a beam combiner connected to the M-channel light source module, where M is an integer greater than 1. The controller is configured to send a corresponding pulse control signal set to each light source module of the M light source modules; each light source module is configured to output one laser pulse according to the corresponding pulse control signal set, and the M light source The module outputs M laser pulses in total; the beam combiner is configured to synthesize the received M laser pulses to obtain and output one output laser pulse that meets preset requirements.

Optionally, the controller includes a main control circuit, a pulse control circuit connected to the main control circuit and the M-channel light source module, and a drive connected to the main control circuit and the M-channel light source module Control circuit. The main control circuit is configured to generate M pulse signal data and N drive signal data, send the M pulse signal data to the pulse control circuit, and send the N drive signal data to the drive Control circuit; the pulse control circuit is configured to generate M pulse control signals corresponding to the M pulse signal data in a one-to-one correspondence, and send the M pulse control signals to the M-channel light source module in a one-to-one correspondence; The drive control circuit is configured to generate N pulse drive signals according to the generated data of the N drive signal data in a one-to-one correspondence, and send the N pulse drive signals to the M light source modules.

Optionally, each light source module includes a seed source laser and an N-stage amplifier connected in series between the seed source laser and the beam combiner, where N is an integer greater than 0. The seed source laser is configured to output a source laser pulse based on the pulse control signal concentrated in the pulse control signal. The N-level amplifier is configured to perform N-level amplification on the source laser pulse according to the N pulse drive signals in the pulse control signal set to obtain a laser pulse.

Optionally, when the N-stage amplifier is a 1-stage amplifier, the N pulse drive signals are 1 pulse drive signal, and the drive control circuit is configured to send the pulse drive signals to each channel of the light source module Amplifier.

Optionally, when the N-stage amplifier is at least two-stage amplifier, the N pulse drive signals are at least two pulse drive signals, and the drive control circuit is configured to configure the first of the N pulse drive signals i pulse drive signals are sent to the i-th amplifier of each light source module, i is a positive integer not greater than N.

Optionally, the first-stage amplifier in the N-stage amplifier is configured to generate a pump laser according to the first pulse drive signal to amplify the source laser pulse and output the first-amplified source laser pulse The i-th amplifier of the N-stage amplifier except the first-stage amplifier is configured to generate a pump laser according to the i-th pulse drive signal, and output the i-1 th The amplified source laser pulse is amplified and the i-th amplified source laser pulse is output.

Optionally, when the current value of the i-th pulse drive signal is greater than or equal to the drive current value of the i-th amplifier that obtained the i-th pulse drive signal: the N drive current values of the N-level amplifier are all the same, corresponding to N current values of the N pulse drive signals are all the same; every two dynamic current values of the N drive current values of the N-stage amplifier are different, and every two of the corresponding N pulse drive signals The current values of the pulse drive signals are all different; the N drive current values of the N-stage amplifiers are partially the same, and the N current values of the corresponding N pulse drive signals are at least partially the same.

Optionally, the core diameter of each optical fiber connected to the i-th amplifier increases based on the increase in the number of i-th amplifier stages.

Optionally, the period during which each of the N-stage amplifiers generates the pump laser includes the period during which each stage of the amplifier obtains the source laser pulse.

Optionally, an optical isolator is connected in series at both ends of each stage amplifier.

Optionally, the optical isolator is an isolator or an acousto-optic modulator.

Optionally, each of the M pulse control signals includes: a waiting time, a pulse delay time, and a pulse signal. The controller is further configured to output the M pulse control signals to the M light source modules in a one-to-one correspondence at M first moments, wherein the M first moments are the same moment or at least partly the same moment Each light source module is also configured to obtain each pulse control signal at each second moment and obtain the waiting duration; each light source module waits from each second moment to each according to the waiting duration At the third moment, each light source module is further configured to obtain the pulse delay time, wherein the M third moments corresponding to the M light source modules are the same moment; each light source module is based on the pulse delay Duration: from waiting at every third time to waiting at the fourth time, each light source module is further configured to output the one laser pulse according to the pulse signal and the N pulse drive signals.

Optionally, the beam combiner is further configured to receive each laser pulse at every fifth moment corresponding to each fourth moment sent by each laser pulse, for a total of M fifth moments, according to the At the fifth moment, the received M laser pulses are synthesized to obtain and output one output laser pulse with a pulse average power within a preset average power range and / or a pulse duration within a preset duration, wherein, If the pulse average power is within the preset average power range and / or the pulse duration is within the preset duration, it indicates that the output laser pulse meets the preset requirement.

Optionally, the M laser pulses have M timings corresponding to the M fourth moments, and the beam combiner is further configured to superimpose the M laser pulses according to the M timings The output laser pulse.

Optionally, the preset average power range is: 0Kw-6Kw, and the pulse duration is: 0ns-10us.

Optionally, the beam combiner is a 3-in-1 beam combiner, a 4-in-1 beam combiner, a 7-in-1 beam combiner, a 19-in-1 beam combiner, or a 37-in-1 beam combiner.

Optionally, the laser further includes a connector connected to the beam combiner; the connector is configured to output the received output laser pulse to an external device.

Optionally, the laser further includes: a communication interface connected to the controller and an external device, respectively; the communication interface is configured to establish a communication connection between the controller and the external device.

An embodiment of the present application also provides a laser generation method, which is applied to a laser. The laser includes a controller, an M-channel light source module connected to the controller, and a beam combiner connected to the M-channel light source module The method includes: the controller sends a corresponding pulse control signal set to each light source module of the M light source modules; each light source module outputs a laser pulse according to the corresponding pulse control signal set, the M The road light source module outputs a total of M laser pulses; the beam combiner synthesizes the received M laser pulses to obtain and output one output laser pulse that meets preset requirements.

Optionally, the controller sends a corresponding pulse control signal set to each light source module of the M light source modules, including: M pulse control signals generated by the controller, and generating N pulse drive signals The controller sends the M pulse control signals to the M light source modules in a one-to-one correspondence, and sends the N pulse drive signals to each light source module of the M light source modules, wherein, The pulse control signal set obtained by each light source module includes: a corresponding pulse control signal among the M pulse control signals and the N pulse drive signals.

Optionally, each light source module outputs one laser pulse according to the corresponding pulse control signal set, including: each light source module outputs one source laser pulse based on the pulse control signal in the pulse control signal set; each light source module The N pulse drive signals in the pulse control signal set perform N-level amplification on the source laser pulse to obtain a laser pulse.

Optionally, each pulse control signal includes: waiting time, pulse delay time and pulse signal, and each light source module outputs one source laser pulse based on the pulse control signal concentrated in the pulse control signal, including: the control The device outputs the M pulse control signals to the M light source modules in one-to-one correspondence at M first moments, where the M first moments are the same moment or at least partly the same moment; each light source module is at Obtain a pulse control signal in the pulse control signal set at each second moment, and obtain the waiting time, wherein the pulse control signal is a corresponding signal among the M pulse control signals; The waiting time, when waiting from every second time to every third time, each light source module obtains the pulse delay time, wherein the M third time times corresponding to the M light source modules are the same time ; Each light source module according to the pulse delay time, from waiting at every third moment to the fourth moment, each light source module according to the pulse signal and The N pulse driving signals output the one laser pulse.

Optionally, the beam combiner synthesizes the received M laser pulses to obtain and output one output laser pulse that meets preset requirements, including: the beam combiner is Each fifth moment corresponding to each fourth moment receives each laser pulse in a total of M fifth moments; the beam combiner synthesizes the received M laser pulses according to the M fifth moments To obtain and output the output laser pulse with a pulse average power within a preset average power range and / or a pulse duration within a preset duration, wherein the pulse average power is within the preset average power range and // Or the pulse duration within the preset duration indicates that the output laser pulse meets the preset requirement.

An embodiment of the present application also provides a computer-readable storage medium having non-volatile program code executable by a processor, where the program code causes the processor to perform the laser generating method according to any embodiment of the present application .

In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are described below in conjunction with the accompanying drawings, which are described in detail below.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so they are not It should be regarded as a limitation on the scope. For those of ordinary skill in the art, without paying any creative work, other related drawings can be obtained based on these drawings.

FIG. 1 shows a first structural block diagram of a laser provided by an embodiment of the present application;

2 shows a second structural block diagram of a laser provided by an embodiment of the present application;

3 shows a structural block diagram of each light source module in a laser provided by an embodiment of the present application;

4 shows a first schematic diagram of a laser for synthesizing laser pulses provided by an embodiment of the present application;

FIG. 5 shows a second schematic diagram of a laser for synthesizing laser pulses provided by an embodiment of the present application;

6 shows a third schematic diagram of a laser for synthesizing laser pulses provided by an embodiment of the present application;

7 shows a flowchart of a laser generation method provided by an embodiment of the present application;

8 shows a sub-flow diagram of step S100 in a laser generation method provided by an embodiment of the present application;

9 shows a sub-flow diagram of step S200 in a laser generation method provided by an embodiment of the present application;

10 shows a sub-flow diagram of step S210 in a laser generation method provided by an embodiment of the present application;

FIG. 11 shows a sub-flow diagram of step S300 in a laser generation method provided by an embodiment of the present application.

Icons: 100-laser; 110-communication interface; 120-controller; 121-main control circuit; 122-pulse control circuit; 123-drive control circuit; 130-light source module; 131-seed source laser; 132-amplifier; 133 -Optical isolator; 140-beam combiner; 150-connector.

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application that are generally described and illustrated in the drawings herein can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings, therefore, once an item is defined in one drawing, there is no need to further define and explain it in subsequent drawings. The terms "first", "second", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms “setup”, “installation”, “connection”, and “connection” should be broadly understood, for example, it can be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the connection between two components. For those of ordinary skill in the art, the specific meaning of the above terms in this application can be understood in specific situations.

It should be noted that the features in the embodiments of the present disclosure can be combined with each other without conflict.

At present, the average power of the pulsed fiber laser can reach 100-500W, the pulse energy can reach 1-10mJ, and the pulse width can reach 100-500ns. However, with the development of industry technology, pulsed fiber lasers need to provide greater average power, greater pulse energy, and longer pulse width to meet the more demanding use requirements. The average power, pulse energy and pulse width of current pulsed fiber lasers are gradually unable to meet the use requirements.

The lasers and laser generation methods provided by the embodiments of the present application can effectively alleviate the technical problems that the current average power, pulse energy and pulse width of the pulsed fiber lasers cannot gradually meet the usage requirements. The method is described in detail.

Referring to FIG. 1, some embodiments of the present application provide a laser 100 including: a communication interface 110, a controller 120, an M-channel light source module 130, a beam combiner 140, and a connector 150, where M is Integer greater than 1.

The communication interface 110 may be connected to the controller 120 and the external device, the controller 120 may be connected to the M-channel light source module 130, and the beam combiner 140 may be connected to the M-channel light source module 130 and the connector 150, respectively. For the sake of simplicity, the external device is not shown in the drawings of the present application. The external device may be any electronic device that can communicate with the communication interface 110 and send and receive data, such as a personal computer, mobile phone, server, workstation, etc.

In this embodiment, the controller 120 is configured to send a corresponding pulse control signal set to each of the three light source modules 130.

In the M light source modules 130, each light source module 130 is configured to output one laser pulse according to the corresponding pulse control signal set, then the M light source modules 130 output M laser pulses in total.

The beam combiner 140 is configured to synthesize the three received laser pulses to obtain and output one output laser pulse that meets the preset requirements.

The connector 150 is configured to output the received output laser pulse to other external devices.

Hereinafter, the components of the laser 100 according to the embodiments of the present application will be described in detail with reference to FIGS. 1 to 3.

The communication interface 110 may be a conventional communication serial circuit, such as an Ethernet interface circuit, an RS232 communication serial circuit, or an RS485 communication serial circuit, etc. In this embodiment, the detailed model of the communication interface 110 is exemplarily RS232. The communication interface 110 is configured to establish a communication connection between the controller 120 and an external device. Of course, the communication connection between the controller 120 and the external device can meet the corresponding communication protocol. For example, depending on the type of the communication interface 110, it needs to meet the Ethernet protocol , RS232 communication protocol, RS485 communication protocol and / or handshake protocol between devices, etc. The communication interface 110 in this embodiment needs to satisfy the RS232 communication protocol.

In data transmission based on the communication interface 110, the communication interface 110 may transmit data or control signals sent by an external device to the controller 120, so that the controller 120 performs configuration according to the above data, or performs corresponding control operations according to the control signals. Of course, the communication interface 110 also uploads the data sent by the controller 120 to an external device.

As shown in FIG. 2, the controller 120 in this embodiment includes a main control circuit 121, a pulse control circuit 122 and a drive control circuit 123. The main control circuit 121 can be connected to the communication interface 110, the pulse control circuit 122 and the drive control circuit 123, respectively, and the pulse control circuit 122 and the drive control circuit 123 can be connected to the M-channel light source module 130 respectively.

The main control circuit 121 may be an integrated circuit chip with signal processing capability. In this embodiment, the main control circuit 121 is a general-purpose processor, including, for example, a central processor (Central Processing Unit, CPU) and a network processor (Network Processor) , NP), single-chip microcomputer, etc. In other embodiments of the present application, the model of the main control circuit 121 may also be STM32_FPGA_CTRV1.5 type.

A control program is stored in the storage medium of the main control circuit 121. After the I / O port of the main control circuit 121 communicates with an external device through the communication interface 110, the control program in the main control circuit 121 can be configured or updated by the external device, and The main control circuit 121 may also obtain a control command sent by an external device through the communication interface 110 and execute the control program in the storage medium.

Optionally, the control program stored in the main control circuit 121 may include a program for generating laser pulses and driving laser pulses, then the main control circuit 121 will be used under the control of an external device or the main control circuit 121 automatically runs the control program The program for generating the laser pulse and driving the laser pulse is executed, so that the main control circuit 121 can generate M pulse signal data according to the execution of the program for generating the laser pulse, and can generate the N according to the execution of the program for driving the laser pulse. N drive signal data, N can be any integer greater than 1. Moreover, the I / O port of the main control circuit 121 communicates with the pulse control circuit 122 and the drive control circuit 123, the main control circuit 121 can send M pulse signal data to the pulse control circuit 122, so that the pulse control circuit 122 is based on the M The pulse signal data correspondingly generates M pulse control signals; and the main control circuit 121 can also send N drive signal data to the drive control circuit 123, so that the drive control circuit 123 can generate N drive signals corresponding to the N drive signal data.

It can be understood that, of the M pulse control signals, each pulse control signal may include: waiting time, pulse delay time, and pulse signal. Therefore, each pulse signal data defines the length of the waiting time, the length of the pulse delay time, and the signal waveform of the pulse signal in each pulse control signal. Since each pulse signal data can be generated based on the operation of the program for generating laser pulses, when editing the program for generating laser pulses, the program for generating laser pulses can be configured according to actual needs so that each The length of the waiting time of each pulse control signal, the length of the pulse delay time, and the signal waveform of the pulse signal make the length of the waiting time of the M pulse control signals, the length of the pulse delay time, the signal waveform of the pulse signal The signal waveform length is completely different or at least partially the same. In this embodiment, the signal waveforms of the three pulse signals are all triangle waves. In other embodiments of the present application, the signal waveforms of the pulse signals may be square waves, triangle waves, sine cosine waves, or other irregular waveforms.

It can also be understood that, of the N driving signals, each driving signal may include a current value for driving. Therefore, each drive signal data also defines the current value of each drive signal. Since each driving signal data can be generated based on the operation of the program for driving the laser pulse, when editing the program for driving the laser pulse, the program for driving the laser pulse can be configured according to the actual needs so that N The current values of the pulse drive signals are completely different or at least partially the same.

Please continue to refer to FIG. 2, the pulse control circuit 122 may also be an integrated circuit chip with signal processing conversion capability, and the pulse control circuit 122 may be a digital-to-analog conversion chip. In this embodiment, by way of example, the pulse control circuit 122 is The model is AD9708 type digital-to-analog conversion chip.

After the pulse control circuit 122 obtains M pulse signal data, the pulse control circuit 122 can perform digital-to-analog conversion on each pulse signal data in the M pulse signal data, thereby generating each pulse after each pulse signal data conversion The control signals correspondingly generate M pulse control signals. Then, for each pulse control signal generated, each pulse control signal may contain the corresponding waiting time, pulse delay time and pulse signal defined by each pulse signal data.

In this embodiment, the M pulse signal data may also define the first moment of sending each of the M pulse control signals, and a total of M first moments are defined.

Alternatively, since the waiting time can subsequently be used to eliminate the influence of the difference in the first moment of sending the pulse control signal and the difference in optical path length, and to adjust the M pulse control signals to the same moment, the time can be adjusted according to the convenience of the control Set every first moment.

If it is considered that only the influence of the optical path difference can be eliminated in the future, M first moments can be defined as the same moment.

If it is considered that the difference between the transmission time and the effect of the optical path difference can be eliminated at the same time, M first moments can be defined as at least part of the same moment, for example, the i-th first moment of M first moments can be defined as A Time, and define the i + 1th first time out of the M first times as time B 10ns after time A. It should be noted that the specific value of the above-mentioned delay can be adjusted according to the required scenario of the specific use scenario. In this embodiment, setting the time difference to 10 ns is merely exemplary.

In this way, according to the defined M first moments, the pulse control circuit 122 can send M pulse control signals to the M light source modules 130 through the I / O ports in a one-to-one correspondence at the M first moments.

The drive control circuit 123 may also be an integrated circuit chip with signal processing conversion capability, and the drive control circuit 123 may also be a digital-to-analog conversion chip. In this embodiment, the drive control circuit 123 is exemplarily model AD7032 Digital-to-analog conversion chip.

After the drive control circuit 123 obtains N drive signal data, the drive control circuit 123 can perform digital-to-analog conversion on each of the N drive signal data, thereby generating each pulse after each drive signal data conversion The driving signal corresponds to generating N pulse driving signals. Then, for each pulse drive signal generated, each pulse drive signal may contain the current value defined by the corresponding data of each drive signal.

In this embodiment, the N driving signal data may also define the time when each of the N pulse driving signals is sent and the time period during which each pulse driving signal lasts, and a total of N time and N time periods are defined. Then the drive control circuit 123 sends the drive signal at each pulse to each light source module 130 of the M light source modules 130 at each corresponding time according to N times, and controls each pulse according to each corresponding time period The driving signal acts on each light source module 130 for each time period, so that each light source module 130 can effectively generate the source laser for each pulse driving signal within each time period for each pulse driving signal Pulse to drive.

It can be understood that, for each light source module 130 of the M light source modules 130, the pulse control signal set obtained by each light source module 130 includes: a corresponding pulse control signal and N pulse drive signals among the M pulse control signals.

Please refer to FIGS. 2 and 3. In the M-channel light source module 130 of this embodiment, each light source module 130 is configured to obtain each pulse control signal at every second moment and obtain the waiting time. When each light source module 130 waits from every second time to every third time according to the waiting time, each light source module 130 is further configured to obtain a pulse delay time, where M light source modules 130 correspond to M The third moment is the same moment. And each light source module 130 is further configured to output one laser pulse according to the pulse signal and the N pulse drive signals when each light source module 130 waits from every third time to the fourth time according to the pulse delay time.

The principle that each light source module 130 executes the above process will be described in detail below.

In the M-channel light source module 130, each light source module 130 may include a seed source laser 131, an N-stage amplifier 132, and an optical isolator 133. In practice, the number of M-channel light source modules 130 may be 5-30, but it is not limited.

For the M-channel light source module 130, the pulse control circuit 122 can be connected to the M seed source lasers 131 of the M-channel light source module 130, and the drive control circuit 123 can be connected to the N of each of the M-channel light source modules 130. The stage amplifier 132 is connected. In each light source module 130, the N-stage amplifier 132 can be connected in series between the seed source laser 131 and the beam combiner 140, and in the N-stage amplifier 132, both ends of each stage amplifier 132 are connected in series Optical isolator 133.

Each seed source laser 131 may be a laser pulse generator that uses main oscillation power amplification. In this embodiment, exemplarily, each laser pulse generator is an LC96A1064 model. Each seed source laser 131 is configured to output one source laser pulse based on the pulse control signal concentrated in the pulse control signal.

In this embodiment, the controller 120 outputs M pulse control signals to the M light source modules 130 in one-to-one correspondence at M first moments, and the seed source laser 131 in each light source module 130 can be The corresponding control signal of each pulse is obtained at the second moment. Since the distance between each light source module 130 and the controller 120 in the M-channel light source module 130 is not necessarily the same, the optical path difference between each light source module 130 and the controller 120 is not necessarily the same due to the distance. In this way, each second moment when each seed source laser 131 obtains a corresponding pulse control signal is not necessarily the same.

For the seed source laser 131 of each light source module 130, it obtains each corresponding pulse control signal at each corresponding second moment, and each seed source laser 131 is based on the waiting time in each pulse control signal, Then, it is not necessary to perform the operation, and wait from the second moment to obtain the third moment when the pulse control signal is obtained.

Optionally, in order to ensure that each seed source laser 131 can execute the delay of the emitted laser pulse synchronously, so as to control the synthesis method of each subsequent laser pulse through the delay, then each seed source laser 131 can be made The waiting time waits until the third moment is the same moment, that is, the M third moments corresponding to the M-channel light source module 130 are the same moment.

Therefore, in order to ensure that the M third moments are the same moment, if the M first moments are at least partly the same moment, then when setting the waiting time in each pulse control signal, consider transmitting each of the pulse control signals. The influence of the optical path difference caused by the optical path of the path at the first moment and after each pulse control signal is transmitted.

For example, the i-th pulse control signal is transmitted at time A and the optical path difference of the i-th pulse control signal is 0, and the i + 1 pulse control signal is sent at time B that is 10 ns after time A at time 1 and is compared The optical path difference of the i-th pulse control signal is 10 ns. Therefore, when the waiting time of the i-th pulse control signal is set to 50ns, the waiting time of the i + 1th pulse control signal can be set to 30ns, so as to ensure that the third time and The third time until the i + 1th pulse control signal waits is the same, where i is a positive integer not greater than N.

Optionally, in order to ensure that the M third moments are the same moment, if the M first moments are the same moment, then the waiting time in each pulse control signal can be affected by the behavior after each pulse control signal is transmitted. The effect of the optical path difference caused by the optical path.

For example, the optical path difference of the i-th pulse control signal is 0, and the optical path difference of the i + 1-th pulse control signal is 10 ns compared to the i-th pulse control signal. Therefore, when the waiting time of the i-th pulse control signal is set to 50ns, the waiting time of the i + 1th pulse control signal can be set to 40ns, so that the third time until the i-th pulse control signal waits can also be guaranteed It is the same as the third time until the i + 1th pulse control signal waits.

It should be noted that, optionally, if the reason for defining the M first moments to be different moments is to eliminate the influence of the optical path difference, then it is not necessary to set the waiting time in each pulse signal data, and The delay time and pulse signal can be set only for each pulse signal data. Since the master controller can eliminate the optical path difference of each pulse control signal when sending each pulse control signal at each first moment, so that M seed source lasers 131 can be at the same moment and M second moments Obtaining M pulse control signals in a corresponding manner, and each of the M seed source lasers 131 can directly start a delay according to the pulse extension time.

Optionally, the i-th pulse control signal is transmitted at time A and the optical path difference of the i-th pulse control signal is 0, then the i + 1 pulse control signal is compared to the optical path of the i-th pulse control signal The difference is 10ns, so the i + 1th pulse control signal can be defined as the first time being sent at time B which is 10ns before time A. In this way, it can be ensured that the ith pulse control signal and the ith + 1 pulse control signal are respectively sent to the corresponding two seed source lasers 131 at the same second time.

In this embodiment, when each seed source laser 131 is waiting from the third time to the fourth time based on the pulse delay time, each seed source laser 131 can also control the pulse signal according to each pulse Drive and generate a source laser pulse with the same waveform as the pulse signal, and output the source laser pulse to the N-stage amplifier 132 through an optical fiber.

It can also be understood that for each seed source laser 131, since there is no substantial signal at the waiting time and pulse delay time in each pulse control signal, each seed source laser 131 can At the fourth moment, the pulse signal part of each pulse control signal with a substantial signal is executed, so that a corresponding source laser pulse can be output.

It can also be understood that setting the pulse delay time of each pulse control signal can be based on how the M laser pulses can be combined subsequently. For example, if M laser pulses are superimposed to increase energy intensity and average power, the delay time of each pulse can be set to the same or cross (overlap); if M laser pulses are arranged to increase energy intensity and pulse width , The delay time of each pulse can be set to be different and not cross; if M laser pulses are superimposed and arranged to increase energy intensity, average power and pulse width, each pulse delay time can be set to a part of Not the same and do not cross, and the other part is the same or cross.

In this embodiment, the N-stage amplifier 132 is configured to perform N-stage amplification on the source laser pulse according to the N pulse drive signals in the pulse control signal set to obtain a laser pulse. In practice, the number of N-stage amplifiers 132 may be 2-5, but it is not limited.

Optionally, when the N-stage amplifier 132 is a 1-stage amplifier 132, correspondingly, the N pulse drive signals are 1 pulse drive signal, so that the pulse drive signal is sent to each light source module 130 based on the drive control circuit 123 In the amplifier 132 of each channel, the pump laser 100 in the amplifier 132 of each light source module 130 can generate a pump laser for amplification under the drive of a pulse driving signal. Then, when the amplifier 132 of each light source module 130 obtains a source laser pulse output by the seed source laser 131 of each light source module 130 obtained through the optical fiber, the amplifier 132 of each light source module 130 can convert the source laser based on the pump laser The pulse is amplified to obtain an amplified laser pulse. In this way, the amplifier 132 of each light source module 130 can output the laser pulse to the beam combiner 140 through the optical fiber.

When the N-stage amplifier 132 is at least two-stage amplifier 132, correspondingly, the N pulse drive signals are at least two pulse drive signals. In this way, based on the drive control circuit 123, the N pulse drive signals are sent to the N-stage amplifier 132 of each light source module 130, and the pump laser 100 in each stage amplifier 132 of each light source module 130 corresponds to the N pulse drive signals. Driven by each pulse drive signal, a pump laser for amplification can be generated.

For the first-stage amplifier 132 of the N-stage amplifiers 132 of each light source module 130, the first-stage amplifier 132 can generate a pump laser according to the first pulse drive signal of the N pulse drive signals. And, when the first-stage amplifier 132 obtains a source laser pulse output by the seed source laser 131 of each light source module 130 obtained through the optical fiber, the first-stage amplifier 132 can amplify the source laser pulse based on the pump laser, thereby obtaining a Amplified laser pulse. In this way, the first-stage amplifier 132 can output the laser pulse to the second-stage amplifier 132 in the N-stage amplifier 132 of each light source module 130 through the optical fiber.

For the i-th amplifier 132 of the N-stage amplifier 132 of each light source module 130 except the first-stage amplifier 132, the i-th amplifier 132 can generate a pump according to the i-th pulse drive signal of the N pulse drive signals laser. And, when the i-th amplifier 132 obtains the i-1th amplified source laser pulse output from the i-1th amplifier 132 in the N-stage amplifier 132 of each light source module 130 through the optical fiber, the i-th amplifier 132 will The source laser pulse amplified by the i-1th time can be amplified based on the pump laser, and the source laser pulse amplified by the ith time can be output through the optical fiber to the i + 1th in the N-stage amplifier 132 of each light source module 130 Grade amplifier 132. However, if the i-th amplifier 132 is the last stage, that is, i = N, then the i-th amplifier 132 can obtain the output laser pulse amplified by the i-th time to the beam combiner 140.

It should be noted that, in order to ensure that each stage amplifier 132 can normally amplify the source laser pulse, then each stage amplifier 132 in the N stage amplifier 132 receives each pulse drive signal to generate a pump laser for a period of time It includes the time period for each stage amplifier 132 to obtain the source laser pulse, so as to ensure that the pump laser generated when the source laser pulse is obtained is amplified.

It should also be noted that, to ensure that each stage amplifier 132 can normally amplify the source laser pulse, then each stage amplifier 132 can be fully driven, that is, the current value of the i-th pulse drive signal in the N stage amplifier 132 When it is greater than or equal to the drive current value of the i-th amplifier 132 that obtains the i-th pulse drive signal.

In this way, if the N driving current values of the N-stage amplifier 132 are all the same, that is, the driving current values of each amplifier 132 are the same value, the N current values of the N pulse driving signals corresponding to the driving of the N-stage amplifier 132 can also be the same the same. For example, the drive current values of the first-stage amplifier 132 to the third-stage amplifier 132 are all 10 mA, so that the three current values of the three pulse drive signals may all be 10 mA.

If every two of the N driving current values of the N-stage amplifier 132 are different, the current values of every two pulse driving signals in the corresponding N pulse driving signals may also be different. For example, the driving current values of the first-stage amplifier 132 to the third-stage amplifier 132 may be 10 mA, 20 mA, and 30 mA, respectively. Then, among the three pulse driving signals, the current value of the pulse driving signal driving the first-stage amplifier 132 may be 10 mA. 2. The current value of the pulse drive signal driving the second-stage amplifier 132 may be 20 mA, and the current value of the pulse drive signal driving the third-stage amplifier 132 may be 30 mA.

If the N driving current values of the N-stage amplifier 132 are partially the same, the N current values corresponding to the N pulse driving signals driving the N-stage amplifier 132 may also be partially the same. For example, the drive current values of the first-stage amplifier 132 to the third-stage amplifier 132 may be 10 mA, 10 mA, and 30 mA, respectively. Of the three pulse drive signals, the current value of the pulse drive signal driving the first-stage amplifier 132 and the drive The current value of the pulse driving signal of the second-stage amplifier 132 may be 10 mA, but the current value of the pulse driving signal of the third-stage amplifier 132 may be 30 mA.

It can be understood that the amplification factor of the source laser pulse by each amplifier 132 in the N-stage amplifier 132 is not necessarily the same as the amplification factor of the source laser pulse by each other amplifier 132 in the N-stage amplifier 132. You can choose according to the actual situation.

It can be understood that since each stage amplifier 132 amplifies and outputs the original laser pulse, the optical fiber connected to the output end of each stage amplifier 132 can withstand greater light energy. Therefore, in the N stage amplifier 132, The core diameter of each optical fiber connected to the i-th amplifier 132 is increased based on the increase in the number of stages of the i-th amplifier 132, wherein the core diameter of the optical fiber whose core diameter increases sequentially can be selected from 7um, 10um, 15um, 20um, 25um , 30um, 40um, 48um, 50um, 80um or 100um core diameter. For example, the output of the first-stage amplifier 132 and the input of the first-stage amplifier 132 can be connected to 7um, and the output of the second-stage amplifier 132 and the input of the third-stage amplifier 132 can be connected to 30um.

In this embodiment, an optical isolator 133 is connected in series at both ends of each stage amplifier 132, then for each N-stage amplifier 132 of each light source module 130, N + 1 light isolations can be provided in each light source module 130器 133.

The optical isolator 133 in each light source module 130 may be an isolator or an acousto-optic modulator. In this embodiment, for example, the isolator model is HP (M) IIT1064, and the acousto-optic modulator model is T-M150-0.4C2G-3-F2S. The optical isolator 133 disposed at the corresponding position in each light source module 130 can ensure that the laser pulse in each light source module 130 will not be reflected. For example, the optical isolator 133 connected to the seed source laser 131 in each light source module 130 can ensure that the source laser pulses emitted by the seed source laser 131 will not be reflected by the first-stage amplifier 132. The optical isolator 133 connected to the amplifier 132 can ensure that the source laser pulse or the laser pulse of the i-th stage amplifier 132 is not reflected by the i + 1-th stage amplifier 132 or the beam combiner 140.

2 and 3, the beam combiner 140 may be a conventional pump beam combiner 140 on the market. In this embodiment, the model of the beam combiner 140 is MPC-7 × 1-1064 by way of example. / 200w. Optionally, according to the number of modules in the M-channel light source module 130, the beam combiner 140 is a 3-in-1 beam combiner 140, a 4-in-1 beam combiner 140, a 7-in-1 beam combiner 140, 19, and a 1-beam combiner 140 or 37 and 1 beam combiner 140, etc., but not as a limitation.

In this embodiment, the input end of the beam combiner 140 can be correspondingly connected to M light source modules 130 through M optical fibers, so that the input end of the beam combiner 140 can obtain and synthesize the output M of the M light source modules 130 corresponding to each one Way laser pulse.

Optionally, when the M light source modules 130 emit M laser pulses at M fourth moments, the beam combiner 140 may receive the laser pulses at every fifth moment corresponding to every fourth moment sent by each laser pulse. There are M fifth moments for each laser pulse. Since the M laser pulses can have corresponding M timings, the beam combiner 140 can superimpose the M laser pulses according to the corresponding M timings of the M laser pulses at the M fifth moments, so that The received M laser pulses are synthesized, and an output laser pulse with an average pulse power within a preset average power range and / or a pulse duration within a preset duration is output. Wherein, the pulse average power is within the preset average power range and / or the pulse duration within the preset duration indicates that the output laser pulse meets the preset requirements. In this embodiment, the preset average power range and pulse duration range can be set by the number of M light source modules 130 and / or the synthesis method of M laser pulses. For example, the preset average power range is: 0Kw-6Kw, The pulse duration is: 0ns-10us, but it is not limited.

Please refer to FIG. 4 to FIG. 6, the following will explain the synthesis of M laser pulses with three assumptions.

As shown in FIG. 4, it is assumed that the waiting time t1 of the pulse control signal A, the pulse delay time t2, the pulse width t3 of the pulse signal A, the waiting time t1 of the pulse control signal B, the pulse delay time t2, and the pulse signal B Pulse width t3. Then, when the pulse delay time t2 of the pulse control signal A and the pulse control signal B is the same, the output laser pulse can be obtained by superimposing the laser pulse generated based on the pulse control signal A and the laser pulse generated based on the pulse control signal B C. In this way, the pulse width of the output laser pulse C is kept at the pulse width t3, but the average power of the output laser pulse C may be the sum of the average power of the laser pulse generated by the pulse control signal A and the laser pulse generated based on the pulse control signal B.

As shown in FIG. 5, assume that the waiting time t1 of the pulse control signal A1, the pulse delay time t2, the pulse width t3 of the pulse signal A, the waiting time t1 of the pulse control signal B1, the pulse delay time t2, the pulse signal B Pulse width t3. Then, when the pulse delay time t2 of the pulse control signal B is twice the pulse delay time t2 of the pulse control signal A, the laser pulses generated based on the pulse control signal A and the laser pulses generated based on the pulse control signal B are arranged , You can get the output laser pulse C. In this way, the pulse width of the output laser pulse C increases to twice the pulse width t4 of the pulse width t3, but the average power of the output laser pulse C can be the same as the average power of the laser pulse generated by the pulse control signal A and based on the pulse control signal B. The average power of the laser pulse is the same.

As shown in FIG. 6, it is assumed that the waiting time t1 of the pulse control signal A, the pulse delay time t2, the pulse width t3 of the pulse signal A, the waiting time t1 of the pulse control signal B, the pulse delay time t2, and the pulse signal B Pulse width t3. Then, when the pulse delay time t2 of the pulse control signal B is 1.5 times the pulse delay time t2 of the pulse control signal A, the laser pulse generated based on the pulse control signal A and the laser pulse generated based on the pulse control signal B Superimposed and arranged, you can get the output laser pulse C. In this way, the pulse width of the output laser pulse C increases by 1.5 times the pulse width t4 of the pulse width t3, and the average power of the output laser pulse C may be the average power of the laser pulse generated by the pulse control signal A or generated based on the pulse control signal B 1.5 times the average power of the laser pulse.

3, after the beam combiner 140 obtains the output laser pulse, due to the comparison of the energy and / or average power of the synthesized output laser pulse, the beam combiner 140 can pass through the optical fiber with a larger core diameter, for example, the core diameter It is an 80um fiber and outputs the output laser pulse to the connector 150.

The connector 150 may be a conventional component configured to provide an interface for an external device. For example, the connector 150 may be a LLC-M-1080 model high-power connector 150. After the connector 150 obtains the output laser pulse output by the beam combiner 140, the connector 150 may output the output laser pulse to the external device again.

Referring to FIG. 7, some embodiments of the present application provide a laser generation method. The laser generation method is applied to the laser 100. The laser generation method includes: step S100, step S200, and step S300.

Step S100: The controller sends a corresponding pulse control signal set to each light source module of the M light source modules.

Step S200: each light source module outputs one laser pulse according to the corresponding pulse control signal set, and the M light source modules output M laser pulses in total.

Step S300: the beam combiner synthesizes the received M laser pulses to obtain and output one output laser pulse that meets preset requirements.

As shown in FIG. 8, the sub-flow of step S100 further includes: step S110 and step S120.

Step S110: M pulse control signals generated by the controller, and N pulse drive signals are generated.

Step S120: The controller sends the M pulse control signals to the M light source modules in a one-to-one correspondence. And the controller sends the N pulse drive signals to each light source module of the M light source modules, wherein the pulse control signal set obtained by each light source module includes: the M pulse control signals Corresponding one pulse control signal and the N pulse driving signals.

As shown in FIG. 9, the sub-process of step S200 further includes:

Step S210: each light source module outputs one source laser pulse based on the pulse control signal concentrated in the pulse control signal.

Step S220: each light source module performs N-level amplification on the source laser pulse according to the N pulse drive signals in the pulse control signal set to obtain a laser pulse.

As shown in FIG. 10, each pulse control signal includes: waiting time, pulse delay time and pulse signal, and step S210 includes: step S211, step S212, step S213, and step S214.

Step S211: The controller outputs the M pulse control signals to the M-channel light source module in one-to-one correspondence at M first moments, wherein the M first moments are the same moment or at least part of the same moment .

Step S212: each light source module obtains a pulse control signal in the pulse control signal set at each second moment and obtains the waiting time, wherein the pulse control signal is a corresponding one of the M pulse control signals signal.

Step S213: when each light source module waits from every second time to every third time according to the waiting time, each light source module obtains the pulse delay time, wherein the M light source modules correspond The M third moments are the same moment.

Step S214: When each light source module waits from each third moment to the fourth moment according to the pulse delay time, each light source module outputs the pulse signal and the N pulse driving signals according to the pulse signal All the way to the laser pulse.

As shown in FIG. 11, step S300 includes step S310 and step S320.

Step S310: the beam combiner receives each laser pulse at every fifth moment corresponding to each fourth moment sent by each laser pulse, for a total of M fifth moments.

Step S320: the beam combiner synthesizes the received M laser pulses according to the M fifth moments, obtains and outputs a pulse average power within a preset average power range and / or a pulse duration within a preset The output laser pulse within the duration, wherein the pulse average power is within the preset average power range and / or the pulse duration within the preset duration indicates that the output laser pulse meets the preset Claim.

It should be noted that, as those skilled in the art can clearly understand that, for the convenience and conciseness of description, the detailed execution process of the method described above can refer to the corresponding processes of the system, device, and unit in the foregoing embodiments, This will not be repeated here. Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products.

Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware.

Embodiments of the present application also provide a computer-readable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) storing non-volatile program code executable by a processor. The program code may be In the form of a computer program product containing computer usable program code, the program code causes the processor to execute the laser generation method as described in any embodiment of the present application.

In summary, the embodiments of the present application provide a laser, a laser generating method, and a computer-readable storage medium. The laser includes: a controller, an M-channel light source module connected to the controller, and a beam combiner connected to the M-channel light source module, where M is an integer greater than 1. The controller is configured to send a corresponding pulse control signal set to each light source module of the M light source modules; each light source module is configured to output one laser pulse according to the corresponding pulse control signal set, and the M light source modules output M lasers in total Pulse; the beam combiner is configured to synthesize the received M laser pulses, and obtain and output one output laser pulse that meets the preset requirements.

Since the controller can send the corresponding pulse control signal set to each light source module, each light source module can output one laser pulse according to the corresponding pulse control signal set, so that the beam combiner can perform the received M laser pulses. Synthesized to get one output laser pulse. Since the output laser pulse is obtained by combining M pulses of M laser pulses, by using the corresponding combination of M pulses, the ability to output laser pulses can be the sum of the energy of M pulses, or The average power of the output laser pulse is obtained based on the combination of the average power of M pulses, and the duration of the output laser pulse can be obtained based on the combination of the length of M pulses. Improve so that it can meet the needs of use.

The above are only optional embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings, therefore, once an item is defined in one drawing, there is no need to further define and explain it in subsequent drawings.

The above are only specific implementations of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application, and should cover Within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Industrial applicability

The laser, laser generation method and computer storage medium provided by the embodiments of the present application can effectively alleviate the technical problems of the current average power, pulse energy and pulse width of the pulsed fiber laser to gradually fail to meet the use requirements, and effectively improve the pulse in the existing technology Fiber laser power, pulse energy and pulse width.

Claims (20)

1. A laser, comprising: a controller, an M-channel light source module connected to the controller, and a beam combiner connected to the M-channel light source module, M is an integer greater than 1;

   The controller is configured to send a corresponding pulse control signal set to each light source module of the M light source modules;

   Each light source module is configured to output one laser pulse according to the corresponding pulse control signal set, and the M light source modules output M laser pulses in total;

   The beam combiner is configured to synthesize the received M laser pulses to obtain and output one output laser pulse that meets preset requirements.
2. The laser according to claim 1, wherein the controller comprises: a main control circuit, a pulse control circuit connected to the main control circuit and the M-channel light source module, and to the main control circuit and A drive control circuit connected to the M-channel light source module;

   The main control circuit is configured to generate M pulse signal data and N drive signal data, send the M pulse signal data to the pulse control circuit, and send the N drive signal data to the drive Control circuit;

   The pulse control circuit is configured to generate M pulse control signals in a one-to-one correspondence with the M pulse signal data, and send the M pulse control signals to the M light source modules in a one-to-one correspondence;

   The drive control circuit is configured to generate N pulse drive signals according to the generated data of the N drive signal data in a one-to-one correspondence, and send the N pulse drive signals to the M light source modules.
3. The laser according to claim 1 or 2, wherein each light source module includes: a seed source laser, an N-stage amplifier connected in series between the seed source laser and the beam combiner, N Is an integer greater than 0;

   The seed source laser is configured to output a source laser pulse based on the pulse control signal concentrated in the pulse control signal;

   The N-level amplifier is configured to perform N-level amplification on the source laser pulse according to the N pulse drive signals in the pulse control signal set to obtain a laser pulse.
4. The laser according to claim 3, wherein when the N-stage amplifier is a 1-stage amplifier, the N pulse drive signals are 1 pulse drive signal, and the drive control circuit is configured to The driving signal is sent to the amplifier of each light source module.
5. The laser according to claim 3, wherein when the N-stage amplifier is at least two-stage amplifier, the N pulse drive signals are at least two pulse drive signals, and the drive control circuit is configured to The ith pulse drive signal among the N pulse drive signals is sent to the ith stage amplifier of each light source module, where i is a positive integer not greater than N.
6. The laser according to claim 4 or 5, wherein

   The first-stage amplifier in the N-stage amplifier is configured to generate a pump laser according to the first pulse drive signal to amplify the source laser pulse and output the first-amplified source laser pulse;

   The i-th amplifier of the N-stage amplifier except the first-stage amplifier is configured to generate a pump laser according to the i-th pulse drive signal, and amplify the i-1th output of the i-1th amplifier Of the source laser pulse is amplified and the source laser pulse amplified at the ith time is output.
7. The laser according to claim 6, characterized in that

   When the current value of the i-th pulse drive signal is greater than or equal to the drive current value of the i-th amplifier that obtained the i-th pulse drive signal:

   The N driving current values of the N-stage amplifier are all the same, and the corresponding N current values of the N pulse driving signals are all the same; every two dynamic current values of the N driving current values of the N-stage amplifier Are not the same, the current values of every two pulse drive signals in the corresponding N pulse drive signals are not the same; the N drive current values of the N-stage amplifier are partially the same, and the corresponding N pulse drive signals Of N current values are at least partially the same.
8. The laser according to any one of claims 5 to 7, wherein the core diameter of each optical fiber connected to the i-th amplifier increases based on an increase in the number of i-stage amplifier stages.
9. The laser according to any one of claims 6 to 8, wherein the time period in which each of the N-stage amplifiers generates the pump laser includes each stage amplifier to obtain the source laser pulse Time period.
10. The laser according to any one of claims 3 to 9, wherein an optical isolator is connected in series at both ends of each amplifier in the N-stage amplifier.
11. The laser according to claim 10, wherein the optical isolator is an isolator or an acousto-optic modulator.
12. The laser according to any one of claims 2 to 11, wherein each of the M pulse control signals includes: a waiting time, a pulse delay time, and a pulse signal;

    The controller is further configured to output the M pulse control signals to the M light source modules in one-to-one correspondence at M first moments, wherein the M first moments are the same moment or at least partly At the same time

    Each of the light source modules is further configured to obtain each pulse control signal at each second moment and obtain the waiting time;

    When each light source module waits from each second time to every third time according to the waiting time, each light source module is further configured to obtain the pulse delay time, wherein, The M third moments corresponding to the M channel light source modules are the same moment;

    In each channel of the light source module, according to the delay time of the pulse, from each third moment to the fourth moment, each channel of the light source module is further configured to be based on the pulse signal and the N One pulse drive signal outputs the one laser pulse.
13. The laser according to claim 12, wherein the beam combiner is further configured to receive each laser pulse at every fifth time corresponding to each fourth time sent by each laser pulse , A total of M fifth moments, synthesizing the received M laser pulses according to the M fifth moments, obtaining and outputting a pulse of average power within a preset average power range and / or a pulse duration within a preset The output laser pulse within the duration, wherein the pulse average power is within the preset average power range and / or the pulse duration within the preset duration indicates that the output laser pulse meets the preset Claim.
14. The laser according to claim 12 or 13, wherein the M laser pulses have M timings corresponding to the M fourth moments, and the beam combiner is further configured according to the M timings , The M laser pulses are superimposed to obtain the output laser pulse.
15. The laser according to claim 13 or 14, wherein the preset average power range is: 0Kw-6Kw, and the pulse duration is: 0ns-10us.
16. The laser according to any one of claims 1 to 15, wherein the laser further comprises: a connector connected to the beam combiner; the connector is configured to receive the received The output laser pulse is output to an external device.
17. A laser generating method, characterized in that it is applied to a laser, the laser includes: a controller, an M-channel light source module connected to the controller, and a beam combiner connected to the M-channel light source module, the Methods include:

    The controller sends a corresponding pulse control signal set to each light source module of the M light source modules;

    Each light source module outputs one laser pulse according to the corresponding pulse control signal set, and the M light source modules output M laser pulses in total;

    The beam combiner synthesizes the received M laser pulses to obtain and output one output laser pulse that meets preset requirements.
18. The laser generating method according to claim 17, wherein the controller sends a corresponding pulse control signal set to each light source module of the M light source modules, including:

    M pulse control signals generated by the controller, and N pulse drive signals are generated;

    The controller sends the M pulse control signals to the M light source modules in a one-to-one correspondence, and sends the N pulse drive signals to each light source module in the M light source modules, wherein each The pulse control signal set obtained by the road light source module includes: a pulse control signal corresponding to the M pulse control signals and the N pulse drive signals.
19. The laser generating method according to claim 18, wherein each light source module outputs one laser pulse according to a corresponding pulse control signal set, including:

    Each light source module outputs one source laser pulse based on the pulse control signal concentrated in the pulse control signal;

    Each light source module performs N-level amplification on the source laser pulse according to N pulse drive signals in the pulse control signal set to obtain a laser pulse.
20. A computer-readable storage medium storing non-volatile program code executable by a processor, the program code causing the processor to execute the laser generating method according to any one of claims 17 to 19.

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