A MOPA laser with fast switching and power regulation and control method

Abstract

The present invention discloses a MOPA laser with fast switching and power regulation, and a control method. The laser includes: a control unit, a target seed source, a collaborative seed source, a coupling module, an amplifying assembly, and an output mechanism. The control unit is used to control the laser output of the target seed source and the collaborative seed source respectively. The target seed source, the coupling module, the amplifying assembly, and the output mechanism are connected in sequence along the laser output direction, and / or the collaborative seed source, the coupling module, the amplifying assembly, and the output mechanism are connected in sequence along the laser output direction. Based on a dual-seed source structure, an output structure, and a control method, the present invention achieves fast switching and power regulation of the laser, solves the problem of slow response of mechanical switches, and simultaneously solves the problem of device damage during high-power use of acousto-optic switching light, as well as the problem of additional laser loss caused by diffraction. The laser is particularly suitable for high average power, high peak power, large pulse energy laser output, and harmonic output.

Description

Technical Field

[0001] The present invention relates to the field of laser technology, and in particular to a MOPA laser with fast light switching and power regulation and a control method. Background Art

[0002] Laser processing, due to its high efficiency, high precision, and non-contact processing, is increasingly becoming the preferred method of processing and is widely used in various precision machining processes. However, with the continuous development of the industry, the requirements for lasers are also becoming increasingly stringent, including shorter wavelengths, higher peak powers, and greater pulse energy. These processes require precise control of the laser, and the accuracy and efficiency of this control have a significant impact on the processing results, thus placing higher requirements on the laser's switching time.

[0003] Traditional external laser control methods include acousto-optic modulation (AOM) and mechanical switching. Mechanical switching can withstand higher power and has a simple structure, but its switching speed is slow and the light spot shape changes severely during the switching process, which cannot meet the needs of laser processing. Acousto-optic modulation (AOM) modulates the laser output by giving high and low level control of the laser passing through the AOM through a gate signal, dividing it into level 1 light (emitting light) or level 0 light (blocking, not emitting light), thereby achieving rapid switching of the laser. AOM has the advantage of short switching time (10-100ns), but its level 1 output has the problem of low light conversion efficiency, usually around 80%, resulting in about 20% laser output loss. Summary of the Invention

[0004] The embodiment of the present invention provides a MOPA laser with fast light switching and power regulation and a control method, aiming to achieve fast light switching and power regulation of the laser.

[0005] An embodiment of the present invention provides a MOPA laser with fast optical switching and power regulation, comprising: a control unit, a target seed source, a collaborative seed source, a coupling module, an amplifying component, and an output mechanism; wherein the control unit is used to control the laser output of the target seed source and the collaborative seed source respectively, the target seed source, the coupling module, the amplifying component, and the output mechanism are connected in sequence along the laser output direction, and / or the collaborative seed source, the coupling module, the amplifying component, and the output mechanism are connected in sequence along the laser output direction.

[0006] Furthermore, the target seed source is a target pulse seed source or a target continuous seed source, and when the target seed source is a target pulse seed source, the pulse width range is millisecond to femtosecond, and the target pulse seed source is but not limited to any one of a mode-locked laser, a Q-switched laser, a fiber laser, a solid-state laser or a diode laser.

[0007] Furthermore, the collaborative seed source is a collaborative pulse seed source or a collaborative continuous seed source, and when the collaborative seed source is a collaborative pulse seed source, the pulse width range is millisecond to femtosecond, and the collaborative pulse seed source is but not limited to any one of a mode-locked laser, a Q-switched laser, a fiber laser, a solid-state laser or a diode laser.

[0008] Furthermore, the peak power of the collaborative seed source is lower than the peak power of the target pulse seed source;

[0009] And / or, the wavelength of the collaborative seed source is different from the wavelength of the target continuous seed source.

[0010] Furthermore, the amplifying component is any one or a combination of an optical fiber amplifying component, a solid amplifying component, a traveling wave amplifying component or a regenerative amplifying component, the input end of the amplifying component is connected to the coupling module, and the output end of the amplifying component is connected to the output mechanism.

[0011] Furthermore, when the target seed source is a target pulse seed source, the collaborative seed source is a collaborative pulse seed source or a collaborative continuous seed source, and the output mechanism is an optical harmonic output system.

[0012] Furthermore, when the target seed source is the target seed source, the wavelength of the collaborative seed source is different from the wavelength of the target seed source, and the output mechanism includes but is not limited to a dichroic spectrometer and other dispersive spectroscopic elements. The output mechanism selectively outputs the laser signal amplified by the target seed source, and the laser signal amplified by the collaborative seed source is blocked, thereby achieving the purpose of output selection.

[0013] An embodiment of the present invention further provides a method for controlling a MOPA laser with rapid optical switching and power regulation, which is implemented using the MOPA laser with rapid optical switching and power regulation as described in any of the above items, comprising:

[0014] The control unit receives an external signal and transmits the external signal to the target seed source and the cooperative seed source respectively, so that the target seed source and the cooperative seed source perform laser output control according to the external signal.

[0015] Furthermore, the external signal includes a laser output signal and a laser off signal;

[0016] The control unit receives an external signal and transmits the external signal to the target seed source and the cooperative seed source respectively, so that the target seed source and the cooperative seed source perform laser output control according to the external signal, including:

[0017] When the control unit receives the laser output signal, the control unit transmits the laser output signal to the target seed source and the cooperative seed source respectively, so as to switch on the output laser of the target seed source and switch off the output laser of the cooperative seed source;

[0018] The output laser of the target seed source passes through the coupling module and the amplifying component in sequence and then enters the output mechanism to realize laser output;

[0019] When the control unit receives the laser off signal, it transmits the laser off signal to the target seed source and the cooperative seed source respectively to turn off the output laser of the target seed source and turn on the output laser of the cooperative seed source;

[0020] The output laser of the cooperative seed source passes through the coupling module and the amplifying component in sequence and enters the output mechanism. However, due to the inability to generate harmonic output or wavelength mismatch, the output laser cannot be output through the output mechanism, thereby realizing laser shutdown.

[0021] Furthermore, the external signal also includes a power adjustment signal;

[0022] The control unit receives an external signal and transmits the external signal to the target seed source and the cooperative seed source respectively, so that the target seed source and the cooperative seed source perform laser output control according to the external signal, including:

[0023] When the control unit receives a power adjustment signal, it obtains a power adjustment ratio corresponding to the power adjustment signal, and transmits the power adjustment ratio to the target seed source and the collaborative seed source respectively, so that the target seed source and the collaborative seed source respectively output lasers of corresponding powers according to the power adjustment ratio, and pass through the coupling module, the amplification component and the output mechanism in sequence. Since the amplification of the collaborative seed source cannot be output after passing through the output mechanism, and will affect the amplification gain of the target seed source, the amplification power of the target seed source is changed, thereby achieving the purpose of achieving different power laser outputs.

[0024] An embodiment of the present invention provides a MOPA laser with fast switching and power regulation and a control method. The laser includes: a control unit, a target seed source, a collaborative seed source, a coupling module, an amplifying assembly, and an output mechanism. The control unit is used to control the laser output of the target seed source and the collaborative seed source respectively. The target seed source, the coupling module, the amplifying assembly, and the output mechanism are connected in sequence along the laser output direction, and / or the collaborative seed source, the coupling module, the amplifying assembly, and the output mechanism are connected in sequence along the laser output direction. The embodiment of the present invention, based on a dual-seed source structure, an output structure, and a control method, achieves fast switching and power regulation of the laser, solves the problem of slow response of mechanical switches, and solves the problem of device damage during high-power use of acousto-optic switching light and the problem of additional laser loss caused by diffraction. The laser is particularly suitable for high average power, high peak power, large pulse energy laser output, and harmonic output. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of a MOPA laser with fast light switching and power regulation provided by an embodiment of the present invention;

[0027] Figure 2 A first exemplary schematic diagram of a MOPA laser with fast optical switching and power regulation provided by an embodiment of the present invention;

[0028] Figure 3 A second exemplary schematic diagram of a MOPA laser with fast optical switching and power regulation provided by an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the switching control waveform of a MOPA laser with fast optical switching and power regulation provided by an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the power regulation waveform of a MOPA laser with fast optical switching and power regulation provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0033] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in the specification and appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0035] See below Figure 1 An embodiment of the present invention provides a MOPA laser with fast switching light and power regulation, including: a control unit 1, a target seed source 2, a collaborative seed source 3, a coupling module 4, an amplifying component 5 and an output mechanism 6; wherein the control unit 1 is used to control the laser output of the target seed source 2 and the collaborative seed source 3 respectively, the target seed source 2, the coupling module 4, the amplifying component 5 and the output mechanism 6 are connected in sequence along the laser output direction, and / or the collaborative seed source 3, the coupling module 4, the amplifying component 5 and the output mechanism 6 are connected in sequence along the laser output direction.

[0036] In this embodiment, the fast switching light and power-regulated MOPA laser is specifically a master oscillator power amplifier structure laser (master oscillator power amplifier, MOPA), which includes a control unit 1, a target seed source 2, a collaborative seed source 3, a coupling module 4, an amplification component 5 and an output mechanism 6. When controlling the laser output, the control unit 1 first receives an external signal, and the control unit 1 transmits the external signal to the target seed source 2 and the collaborative seed source 3 respectively, so that the target seed source 2 and the collaborative seed source 3 respectively perform corresponding laser control actions or laser output adjustments according to the external signal, and then the coupling module 4 and the amplification component 5 couple and amplify the controlled or adjusted laser, and finally the output mechanism 6 outputs the corresponding laser.

[0037] This embodiment is based on a dual-seed source structure, output structure and control method to achieve fast switching and power regulation of the laser, solving the problem of slow response of mechanical switches. At the same time, it solves the problem of device damage during high-power use of acousto-optic switching and the problem of additional laser loss caused by diffraction. It is particularly suitable for high average power, high peak power, large pulse energy laser output and harmonic output.

[0038] In a specific embodiment, the target seed source 2 and the collaborative seed source 3 are both provided with corresponding control modules, such as a target control module and a collaborative control module. When the control unit 1 transmits an external signal to the target seed source 2 and the collaborative seed source 3, the target control module and the collaborative control module receive the external signal respectively, and further control or adjust the output laser of the target seed source 2 or the collaborative seed source 3 according to the external signal.

[0039] The target seed source 2 is a target pulse seed source or a target continuous seed source, and when the target seed source 2 is a target pulse seed source, the pulse width range is millisecond to femtosecond, and the target pulse seed source is but not limited to any one of a mode-locked laser, a Q-switched laser, a fiber laser, a solid-state laser or a diode laser.

[0040] In addition, the collaborative seed source 3 is a collaborative pulse seed source or a collaborative continuous seed source 3, and when the collaborative seed source 3 is a collaborative pulse seed source, the pulse width range is millisecond to femtosecond, and the collaborative pulse seed source is but not limited to any one of a mode-locked laser, a Q-switched laser, a fiber laser, a solid-state laser or a diode laser.

[0041] Here, the target seed source 2 can be a pulse seed source or a continuous seed source. Similarly, the collaborative seed source 3 can be a pulse seed source or a continuous seed source. When the target seed source 2 and / or the collaborative seed source 3 are pulse seed sources, the pulse seed source can be, but is not limited to, any one of a mode-locked laser, a Q-switched laser, a fiber laser, or a solid-state laser.

[0042] Furthermore, the peak power of the collaborative seed source 3 is lower than the peak power of the target seed source 2; for example, the peak power of the collaborative seed source 3 is one thousandth or one ten-thousandth of the peak power of the target seed source 2, etc.; and / or, the wavelength of the collaborative seed source 3 is different from the wavelength of the target seed source 2.

[0043] When the output mechanism 6 is an optical harmonic output system 61, the peak power of the target seed source 2 is much higher than that of the cooperative seed source 3. After passing through the coupling module 4 and the amplification component 5, the low-peak-power laser cannot produce harmonic conversion to achieve the rapid switching effect of the target seed source 2. When the output mechanism 6 is a dichroic spectrometer or other dispersive spectrometer, the target seed source 2 and the cooperative seed source 3 output different wavelengths. After passing through the dichroic spectrometer 62, only the laser light of the target seed source 2 can be output, thus achieving the rapid switching effect of the target seed source 2.

[0044] The amplifying component 5 is any one or a combination of an optical fiber amplifying component, a solid amplifying component, a traveling wave amplifying component or a regenerative amplifying component. The input end of the amplifying component 5 is connected to the coupling module 4, and the output end of the amplifying component 5 is connected to the output mechanism 6.

[0045] The optical fiber amplification component may be an optical fiber amplifier, the solid amplification component may be a solid amplifier, the traveling wave amplification component may be a traveling wave amplifier, and the regenerative amplification component may be a regenerative amplifier.

[0046] Of course, the amplifier component 5 can also be composed of any one or a combination of the above-mentioned optical fiber amplifier component, solid amplifier component, traveling wave amplifier component or regenerative amplifier component.

[0047] The following three embodiments illustrate how a MOPA laser with fast light switching and power regulation can achieve fast light switching and power regulation.

[0048] Example 1:

[0049] When the target seed source 2 is a target pulse seed source, the cooperative seed source 3 is a cooperative pulse seed source or a cooperative continuous seed source, and the output mechanism 6 is an optical harmonic output system 61 .

[0050] Combine Figure 2 , the output mechanism 6 is an optical harmonic output system 61, and the target seed source 2 and the cooperative seed source 3 are in normal working state. When an external signal is input to the control unit 1 to output the target laser, that is, the external signal is a laser output signal, the control unit 1 transmits the laser output signal to the target seed source 2 and the cooperative seed source 3 respectively, and selects the output of the target seed source 2 according to the laser output signal, while turning off the output of the cooperative seed source 3. The target laser output by the target seed source 2 is amplified by the coupling module 4 and the amplifying component 5 in turn and enters the optical harmonic output system 61 to realize laser output;

[0051] When an external signal is input to control unit 1 to shut down the target laser—that is, the external signal is a laser shut-off signal—control unit 1 transmits this laser shut-off signal to both target seed source 2 and cooperative seed source 3. Based on this laser shut-off signal, cooperative seed source 3 outputs, while target seed source 2 outputs is shut off. The cooperative laser output from cooperative seed source 3 is amplified by coupling module 4 and amplifier assembly 5 before entering optical harmonic output system 61. At this point, because the peak power of the cooperative laser is far lower than that of the target laser, harmonic conversion cannot be achieved, resulting in no laser output, effectively shutting down the laser.

[0052] Combine Figure 4 , Figure 4 Specifically, the waveform diagram of the on-off optical control of target seed source 2 is shown. Specifically, the presence of cooperative seed source 3 avoids the problem of a lack of seed signal input to amplifier component 5, which could result in an overly strong first pulse damaging the laser. It also avoids output mode variations caused by thermal lensing. It should also be noted that the optical harmonic output system 61 described in this embodiment can be either an optical second harmonic system or an optical third harmonic system, meaning that it is essentially a nonlinear system.

[0053] Example 2:

[0054] When the target seed source 2 is a target continuous seed source, the wavelength of the collaborative seed source 3 is different from that of the target continuous seed source. The output mechanism 6 includes but is not limited to a dichroic spectrometer 62 and other dispersive spectroscopic elements. The output mechanism 6 selectively outputs the amplified laser signal of the target seed source 2, and the amplified laser signal of the collaborative seed source 3 is blocked, thereby achieving the purpose of output selection.

[0055] Combine Figure 3The output mechanism 6 is a dichroic beam splitter 62, and both the target seed source 2 and the collaborative seed source 3 are functioning normally. When an external signal is input to the control unit 1 requesting target laser output, i.e., the external signal is a laser output signal, the control unit 1 transmits this laser output signal to the target seed source 2 and the collaborative seed source 3, respectively. Based on this laser output signal, the target seed source 2 output is selected, while the collaborative seed source 3 output is simultaneously disabled. The target laser output from the target seed source 2 is amplified by the coupling module 4 and the amplification component 5 before entering the dichroic mirror output system, achieving laser output.

[0056] When an external signal is input to the control unit 1 requiring the target laser to be turned off, that is, the external signal is a laser off signal, the control unit 1 transmits the laser off signal to the target seed source 2 and the cooperative seed source 3 respectively, and selects the output of the cooperative seed source 3 according to the laser off signal, while simultaneously turning off the output of the target seed source 2. The cooperative laser output by the cooperative seed source 3 is amplified by the coupling module 4 and the amplification component 5 in sequence and then enters the dichroic beam splitter 62. At this time, because the wavelength of the cooperative laser is different from that of the target laser, it cannot be output through the dichroic beam splitter 62, resulting in no laser output, thus achieving laser off.

[0057] Example 3:

[0058] The external signal may also be a power adjustment signal, so as to achieve the effect of power adjustment of the main oscillator power amplification structure laser according to the power adjustment signal. Specifically, when the control unit 1 receives the power adjustment signal, it obtains the power adjustment ratio corresponding to the power adjustment signal, and transmits the power adjustment ratio to the target seed source 2 and the cooperative seed source 3 respectively, so that the target seed source 2 and the cooperative seed source 3 respectively output the laser of corresponding power according to the power adjustment ratio. Figure 5 , Figure 5 A schematic diagram of the waveform during power adjustment of the laser in the master oscillator power amplifier structure is shown, where the target seed source is a pulse seed source and the cooperative seed source is a continuous seed source.

[0059] An embodiment of the present invention further provides a method for controlling a MOPA laser with rapid optical switching and power regulation, which is implemented using the MOPA laser with rapid optical switching and power regulation as described in any of the above items, comprising:

[0060] The control unit 1 receives an external signal and transmits the external signal to the target seed source 2 and the cooperative seed source 3 respectively, so that the target seed source 2 and the cooperative seed source 3 perform laser output control according to the external signal.

[0061] Furthermore, the external signal includes a laser output signal and a laser off signal;

[0062] The control unit 1 receives an external signal and transmits the external signal to the target seed source 2 and the cooperative seed source 3 respectively, so that the target seed source 2 and the cooperative seed source 3 perform laser output control according to the external signal, including:

[0063] When the control unit 1 receives the laser output signal, it transmits the laser output signal to the target seed source 2 and the cooperative seed source 3 respectively, so as to switch on the output laser of the target seed source 2 and switch off the output laser of the cooperative seed source 3;

[0064] The output laser of the target seed source 2 passes through the coupling module 4 and the amplifying component 5 in sequence and then enters the output mechanism 6 to realize laser output;

[0065] When the control unit 1 receives the laser off signal, it transmits the laser off signal to the target seed source 2 and the cooperative seed source 3 respectively, so as to turn off the output laser of the target seed source 2 and turn on the output laser of the cooperative seed source 3;

[0066] The output laser of the collaborative seed source 3 passes through the coupling module 4 and the amplifying component 5 in sequence and then enters the output mechanism 6. However, due to the inability to generate harmonic output or wavelength mismatch, the output laser cannot be output through the output mechanism 6, thereby achieving laser shutdown.

[0067] Furthermore, the external signal also includes a power adjustment signal;

[0068] The control unit 1 receives an external signal and transmits the external signal to the target seed source 2 and the cooperative seed source 3 respectively, so that the target seed source 2 and the cooperative seed source 3 perform laser output control according to the external signal, including:

[0069] When the control unit 1 receives a power adjustment signal, it obtains a power adjustment ratio corresponding to the power adjustment signal, and transmits the power adjustment ratio to the target seed source 2 and the collaborative seed source 3, respectively, so that the target seed source 2 and the collaborative seed source 3 respectively output lasers of corresponding powers according to the power adjustment ratio, and pass through the coupling module 4, the amplification component 5 and the output mechanism 6 in sequence. Since the amplification of the collaborative seed source 3 cannot be output after passing through the output mechanism 6, and will affect the amplification gain of the target seed source 2, the amplification power of the target seed source 2 is changed, thereby achieving laser output of different powers.

[0070] Since the embodiments of the method part correspond to the embodiments of the apparatus part, please refer to the description of the embodiments of the apparatus part for the embodiments of the method part, and they will not be repeated here.

[0071] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0072] It should also be noted that, in this specification, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

Claims

1. A MOPA laser with fast switching and power regulation, characterized in that: include: A control unit, a target seed source, a collaborative seed source, a coupling module, an amplifying component, and an output mechanism; wherein the control unit is used to control the laser output of the target seed source and the collaborative seed source respectively, the target seed source, the coupling module, the amplifying component, and the output mechanism are connected in sequence along the laser output direction, and / or the collaborative seed source, the coupling module, the amplifying component, and the output mechanism are connected in sequence along the laser output direction; The control unit receives an external signal and transmits the external signal to the target seed source and the cooperative seed source respectively, so that the target seed source and the cooperative seed source perform laser output control according to the external signal; the external signal includes a power adjustment signal; When the control unit receives a power adjustment signal, it obtains a power adjustment ratio corresponding to the power adjustment signal, and transmits the power adjustment ratio to the target seed source and the collaborative seed source respectively, so that the target seed source and the collaborative seed source respectively output lasers of corresponding powers according to the power adjustment ratio, and pass through the coupling module, the amplification component and the output mechanism in sequence. Since the amplification of the collaborative seed source cannot be output after passing through the output mechanism, and will affect the amplification gain of the target seed source, the amplification power of the target seed source is changed, thereby achieving laser output of different powers.

2. The MOPA laser with fast switching and power regulation according to claim 1, characterized in that: The target seed source is a target pulse seed source or a target continuous seed source, and when the target seed source is a target pulse seed source, the pulse width range is millisecond to femtosecond, and the target pulse seed source is any one of a mode-locked laser, a Q-switched laser, a fiber laser, a solid laser or a diode laser.

3. The MOPA laser with fast switching and power regulation according to claim 2, characterized in that: The collaborative seed source is a collaborative pulse seed source or a collaborative continuous seed source, and when the collaborative seed source is a collaborative pulse seed source, the pulse width range is millisecond to femtosecond, and the collaborative pulse seed source is any one of a mode-locked laser, a Q-switched laser, a fiber laser, a solid laser or a diode laser.

4. The MOPA laser with fast switching and power regulation according to claim 3, characterized in that: The peak power of the collaborative seed source is lower than the peak power of the target seed source; and / or the wavelength of the collaborative seed source is different from the wavelength of the target seed source.

5. The MOPA laser with fast switching and power regulation according to claim 1, characterized in that: The amplifying component is any one or a combination of an optical fiber amplifying component, a solid amplifying component, a traveling wave amplifying component or a regenerative amplifying component. The input end of the amplifying component is connected to the coupling module, and the output end of the amplifying component is connected to the output mechanism.

6. The MOPA laser with fast switching and power regulation according to claim 4, characterized in that: When the target seed source is a target pulse seed source, the cooperative seed source is a cooperative pulse seed source or a cooperative continuous seed source, and the output mechanism is an optical harmonic output system.

7. The MOPA laser with fast switching and power regulation according to claim 4, characterized in that: When the target seed source is a target continuous seed source, the wavelength of the cooperative seed source is different from that of the target continuous seed source, and the output mechanism includes a dichroic spectrometer. The output mechanism selectively outputs the amplified laser signal of the target seed source, and the amplified laser signal of the cooperative seed source is blocked, thereby achieving the purpose of output selection.

8. A method for controlling a MOPA laser with rapid optical switching and power regulation, implemented using the MOPA laser with rapid optical switching and power regulation according to any one of claims 1 to 7, characterized in that: include: The control unit receives an external signal and transmits the external signal to the target seed source and the cooperative seed source respectively, so that the target seed source and the cooperative seed source perform laser output control according to the external signal; The external signal includes a power regulation signal; The control unit receives an external signal and transmits the external signal to the target seed source and the cooperative seed source respectively, so that the target seed source and the cooperative seed source perform laser output control according to the external signal, including: When the control unit receives a power adjustment signal, it obtains a power adjustment ratio corresponding to the power adjustment signal, and transmits the power adjustment ratio to the target seed source and the collaborative seed source respectively, so that the target seed source and the collaborative seed source respectively output lasers of corresponding powers according to the power adjustment ratio, and pass through the coupling module, the amplification component and the output mechanism in sequence. Since the amplification of the collaborative seed source cannot be output after passing through the output mechanism, and will affect the amplification gain of the target seed source, the amplification power of the target seed source is changed, thereby achieving laser output of different powers.

9. The MOPA laser control method with fast switching and power regulation according to claim 8, characterized in that: The external signal includes a laser output signal and a laser off signal; The control unit receives an external signal and transmits the external signal to the target seed source and the cooperative seed source respectively, so that the target seed source and the cooperative seed source perform laser output control according to the external signal, including: When the control unit receives the laser output signal, the control unit transmits the laser output signal to the target seed source and the cooperative seed source respectively, so as to switch on the output laser of the target seed source and switch off the output laser of the cooperative seed source; The output laser of the target seed source passes through the coupling module and the amplifying component in sequence and then enters the output mechanism to realize laser output; When the control unit receives the laser off signal, it transmits the laser off signal to the target seed source and the cooperative seed source respectively to turn off the output laser of the target seed source and turn on the output laser of the cooperative seed source; The output laser of the cooperative seed source passes through the coupling module and the amplifying component in sequence and enters the output mechanism. However, due to the inability to generate harmonic output or wavelength mismatch, the output laser cannot be output through the output mechanism, thereby realizing laser shutdown.

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