CN106785863A - Laser Control Method and its device and equipment and laser system - Google Patents

Laser Control Method and its device and equipment and laser system Download PDF

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Publication number
CN106785863A
CN106785863A CN201611145953.2A CN201611145953A CN106785863A CN 106785863 A CN106785863 A CN 106785863A CN 201611145953 A CN201611145953 A CN 201611145953A CN 106785863 A CN106785863 A CN 106785863A
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China
Prior art keywords
laser
output energy
bar
dominant wavelength
electric current
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CN106785863B (en
Inventor
唐熊忻
邱基斯
樊仲维
王昊成
刘昊
刘悦亮
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Academy of Opto Electronics of CAS
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Academy of Opto Electronics of CAS
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/131Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
    • H01S3/1312Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

The embodiment of the present invention provides a kind of laser Control Method and its device and equipment and laser system, and the laser system includes:Laser, including:Pumping source, laser bar bar including at least two different dominant wavelengths, the spectrum of the laser bar bar composition of at least two different dominant wavelengths is continuous in particular range of wavelengths in temperature T, at least part of scope of particular range of wavelengths is [M ﹣ 6, M] nanometer or [M ﹣ 3, M ﹢ 3] nanometer or [M, M ﹢ 6] nanometer;Working media, the dominant wavelength of absorption spectrum is M nanometers, and the light for the outgoing of absorptive pumping source simultaneously realizes photon transition;Control device, obtains the operating temperature of laser;Dominant wavelength corresponding with operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;The laser bar bar of the dominant wavelength for obtaining is inquired about in opening in control laser, and other laser bar bars are at least partly in off position.The embodiment of the present invention can adapt to the larger environment of temperature change.

Description

Laser Control Method and its device and equipment and laser system
Technical field
The present invention relates to field of laser device technology, more particularly to a kind of laser Control Method and its device and equipment, And laser system.
Background technology
In the prior art, the laser amplifier of diode laser matrix profile pump includes working media, is situated between around work The pumping source of matter.Working media generally uses yttrium-aluminium-garnet (Nd:YAG, Neodymium-doped Yttrium Aluminium Garnet;Nd:Y3Al5O12) crystal bar, pumping source is made up of multiple one-wavelength laser bar (bar) bars, crystal bar Light for the outgoing of absorptive pumping source simultaneously realizes photon transition.
Defect present in prior art is:Laser amplifier is not applied for the larger environment of temperature change.
The content of the invention
The present invention solves the technical problem of providing a kind of laser Control Method and its device and equipment and swash Photosystem, can adapt to the larger environment of temperature change.
In order to solve the above technical problems, the technical scheme that embodiment of the present invention is used is:A kind of laser system is provided System, including:
Laser, including:Pumping source, including at least two different dominant wavelengths laser bar bar, this is at least two different main The spectrum of the laser bar bar composition of wavelength is continuous in particular range of wavelengths in temperature T, at least part of model of particular range of wavelengths Enclose is [M ﹣ 6, M] nanometer or [M ﹣ 3, M ﹢ 3] nanometer or [M, M ﹢ 6] nanometer;Working media, the dominant wavelength of absorption spectrum is M nanometers, Light for the outgoing of absorptive pumping source simultaneously realizes photon transition;
Control device, obtains the operating temperature of laser;From the corresponding relation of preset temperature and dominant wavelength inquiry with The corresponding dominant wavelength of operating temperature;The laser bar bar of the dominant wavelength for obtaining is inquired about in opening in control laser, except this All laser bar bars outside dominant wavelength are at least partly in off position.
Preferably, control device is additionally operable to obtain the target output energy of laser;Inquiry is corresponding with operating temperature pre- The output energy and the relation of electric current put;According to output energy and the relation of electric current, it is determined that electricity corresponding with target output energy Stream, the electric current that the laser bar bar of the dominant wavelength for obtaining will be inquired about in laser is adjusted to the electric current of the determination.
Preferably, control device is additionally operable to be adjusted in the electric current that will inquire about the laser bar bar of the dominant wavelength for obtaining in laser To the electric current of the determination, the reality output energy of laser is obtained;The difference of energy is exported in reality output energy and target When value is beyond predetermined threshold value, energy and reality output energy are exported according to target, inquired about in adjusting laser by Predistribution Algorithm The electric current of the laser bar bar of the dominant wavelength for arriving, until the reality output energy of the laser is less than with the difference of target output energy Equal to predetermined threshold value.
Preferably, control device is additionally operable to obtain the target output energy of laser;Obtain the reality output energy of laser Amount;When the difference of reality output energy and target output energy exceeds predetermined threshold value, energy is exported according to target defeated with actual Go out energy, by the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser, until the laser Reality output energy is less than or equal to predetermined threshold value with the difference of target output energy.
Preferably, connected between the laser bar bar of dominant wavelength of the same race in laser.
In order to solve the above technical problems, another technical scheme that embodiment of the present invention is used is:A kind of laser is provided Device control method, including:
Obtain the operating temperature of laser;
Dominant wavelength corresponding with operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;
The laser bar bar of the dominant wavelength for obtaining is inquired about in opening, the institute in addition to the dominant wavelength in control laser There is laser bar bar at least partly in off position.
Preferably, all laser bar bars in addition to the dominant wavelength are at least partly specially in off position:Except this All laser bar bars outside dominant wavelength are in off position.
Preferably, the operating temperature for obtaining laser is specially:The operating temperature of temperature sensor Real-time Collection laser.
Preferably, the method also includes:
Obtain the target output energy of laser;
The relation of inquiry preset output energy corresponding with operating temperature and electric current;
According to output energy and the relation of electric current, it is determined that electric current corresponding with target output energy, will inquire about in laser The electric current of the laser bar bar of the dominant wavelength for obtaining is adjusted to the electric current of the determination.
Preferably, the electric current in the laser bar bar that the dominant wavelength for obtaining will be inquired about in laser is adjusted to the electric current of the determination Afterwards, also include:
Obtain the reality output energy of laser;
When the difference of reality output energy and target output energy exceeds predetermined threshold value, energy and reality are exported according to target Border exports energy, by the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser, until the laser The reality output energy of device is less than or equal to predetermined threshold value with the difference of target output energy.
Preferably, the method also includes:
Obtain the target output energy of laser;
Obtain the reality output energy of laser;
When the difference of reality output energy and target output energy exceeds predetermined threshold value, energy and reality are exported according to target Border exports energy, by the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser, until the laser The reality output energy of device is less than or equal to predetermined threshold value with the difference of target output energy.
In order to solve the above technical problems, another technical scheme that embodiment of the present invention is used is:A kind of laser is provided Device control device, including:
First acquisition module, the operating temperature for obtaining laser;
First enquiry module, for inquiring about corresponding with operating temperature in the corresponding relation of dominant wavelength from preset temperature Dominant wavelength;
Control module, for controlling to inquire about the laser bar bar of the dominant wavelength for obtaining in opening in laser, except this All laser bar bars outside dominant wavelength are at least partly in off position.
Preferably, the first acquisition module includes temperature sensor, for the operating temperature of Real-time Collection laser.
Preferably, the device also includes:
Second acquisition module, the target for obtaining laser exports energy;
Second looks into module, the relation for inquiring about preset output energy corresponding with operating temperature and electric current;
First adjusting module, for the relation according to output energy and electric current, it is determined that electricity corresponding with target output energy Stream, the electric current that the laser bar bar of the dominant wavelength for obtaining will be inquired about in laser is adjusted to the electric current of the determination.
Preferably, the device also includes:
3rd acquisition module, the reality output energy for obtaining laser;
Second adjusting module, during for the difference in reality output energy and target output energy beyond predetermined threshold value, root According to target output energy and reality output energy, by the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser Electric current, until the difference of the reality output energy of the laser and target output energy is less than or equal to predetermined threshold value.
Preferably, the device also includes:
4th acquisition module, the target for obtaining laser exports energy;
5th acquisition module, the reality output energy for obtaining laser;
3rd adjusting module, during for the difference in reality output energy and target output energy beyond predetermined threshold value, root According to target output energy and reality output energy, by the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser Electric current, until the difference of the reality output energy of the laser and target output energy is less than or equal to predetermined threshold value.
In order to solve the above technical problems, another technical scheme that embodiment of the present invention is used is:A kind of laser is provided Device control device, including:
At least one processor;And
The memory being connected with least one processor;Wherein,
Memory storage has can be by the instruction repertorie of at least one computing device, and instruction repertorie is by least one processor Perform, so that at least one processor is used for:
Obtain the operating temperature of laser;
Dominant wavelength corresponding with operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;
The laser bar bar of the dominant wavelength for obtaining is inquired about in opening, the institute in addition to the dominant wavelength in control laser There is laser bar bar at least partly in off position.
Compared with prior art, the embodiment of the present invention includes following beneficial effect:
The embodiment of the present invention can adapt to the larger environment of temperature change, such as it is spaceborne and airborne in.Also, by obtaining Operating temperature, and corresponding dominant wavelength is inquired according to operating temperature, the laser bar bar of the dominant wavelength is opened in control laser, And other laser bar bars are at least partially closed, the embodiment of the present invention can effectively reduce power consumption.
Brief description of the drawings
One or more embodiments are illustrative by the picture in corresponding accompanying drawing, these exemplary theorys The bright restriction not constituted to embodiment, the element with same reference numbers label is expressed as similar element in accompanying drawing, removes It is non-to have especially statement, the figure not composition limitation in accompanying drawing.
Fig. 1 is Nd:The abosrption spectrogram of YAG crystal;
Fig. 2 is the structural representation of one embodiment of laser of the present invention;
Fig. 3 is the side view of embodiment illustrated in fig. 2;
Fig. 4 is the structural representation of one embodiment of the folded battle array 210 of laser bar bar of embodiment illustrated in fig. 2;
Fig. 5 is the structural representation of one embodiment of the subregion of the folded battle array 210 of laser bar bar of embodiment illustrated in fig. 2;
Fig. 6 is the structural representation of another embodiment of the subregion of the folded battle array 210 of laser bar bar of embodiment illustrated in fig. 2;
Fig. 7 is the schematic flow sheet of one embodiment of the current adjusting method of laser of the present invention;
Fig. 8 is a schematic diagram for concrete application of embodiment illustrated in fig. 7;
Fig. 9 is the schematic flow sheet of another embodiment of the current adjusting method of laser of the present invention;
Figure 10 is the structural representation of one embodiment of the current adjusting device of laser of the present invention;
Figure 11 is the structural representation of another embodiment of the current adjusting device of laser of the present invention;
Figure 12 is the structural representation of one embodiment of laser system of the present invention;
Figure 13 is the structural representation of another embodiment of laser system of the present invention;
Figure 14 is the structural representation of one embodiment of the electric current adjusting device of laser of the present invention;
Figure 15 is the structural representation of one embodiment of the electric current adjusting device of laser of the present invention;
Figure 16 is the schematic flow sheet of one embodiment of laser Control Method of the present invention;
Figure 17 is the schematic flow sheet of another embodiment of laser Control Method of the present invention;
Figure 18 is the schematic flow sheet of another embodiment of laser Control Method of the present invention;
Figure 19 is the structural representation of one embodiment of laser control device of the present invention;
Figure 20 is the structural representation of another embodiment of laser control device of the present invention;
Figure 21 is the structural representation of another embodiment of laser control device of the present invention;
Figure 22 is the structural representation of one embodiment of laser control arrangements of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not For limiting the present invention.
As long as additionally, technical characteristic involved in invention described below each implementation method is each other not Constituting conflict can just be mutually combined.
For ease of description, represented more than or equal to A and less than or equal to B with [A, B] below;With [A, B) represent more than or equal to A and Less than B.
Fig. 1 is referred to, Fig. 1 is Nd:The abosrption spectrogram of YAG crystal.As shown in figure 1, Nd:The absorption spectrum of YAG crystal Have from 300nm to 950nm, but dominant wavelength is 808nm, the absorption efficiency of [795nm, 815nm] near dominant wavelength compared with Height is low in the absorption efficiency of other wave bands.In laser (such as laser amplifier), pumping source laser bar (bar) bar is launched Light include Nd:The spectrum that YAG absorbs, Nd:YAG can just absorb the light and realize photon transition.
In the prior art, the pumping source of laser amplifier is made up of monochromatic bar bar, and such as dominant wavelength is the laser bar of 808nm Bar, its emission spectrum is located at [﹢ 3 of 808 ﹣ 3,808] nm, and 3 is line width (full width at half maximum), positioned at Nd:The dominant wavelength of YAG crystal is attached Closely.
When the temperature of pumping source changes, the emission spectrum of pumping source may drift out the model of 795nm-815nm Enclose, cause Nd:YAG crystal cannot effectively absorb the light of the pumping source.Emission spectrum of such as pumping source at 20 DEG C is located at 808 ± 3nm, typical temperature often changes 3 ° of spectroscopic studying 1nm, then, pumping source emission spectrum at 50 DEG C be located in 818nm ± 3nm, causes Nd:YAG crystal cannot effectively absorb the light of the pumping source, cause laser amplifier to work.Need herein Bright, the present invention is concerned with, and whether the emission spectrum of pumping source removes the dominant wavelength of working media, such as Nd:The master of YAG Wavelength 808nm.
Broad inventive concept of the invention is:In pumping source, there is provided the laser bar bar of at least two different dominant wavelengths, should Wave-length coverage of the spectrum of the laser bar bar composition of at least two different dominant wavelengths near the dominant wavelength of working media is continuous, i.e., The spectrum of pumping source so changes the feelings no more than threshold value near the dominant wavelength of working media and with certain line width in temperature Under condition, the spectrum after pumping source drift still covers the dominant wavelength of working media.
For example, when working media is Nd:During YAG crystal, the dominant wavelength of working media is 808nm, then, two can be provided The laser bar bar of kind of dominant wavelength, the spectrum of composition, both masters continuous in the wave-length coverage of [802,808] nm in 25 DEG C of temperature Wavelength can specifically be respectively 802nm, 808nm.As temperature is raised, the spectrum of both laser bar bars composition, i.e. pumping source Spectrum can be drifted about to long wavelength, but due to spectral line width 6nm, as long as therefore temperature elevation amplitude no more than 18 DEG C (by temperature Degree often changes 3 DEG C of spectroscopic studying 1nm and calculates, and this is determined by the industry characteristics of laser bar bar, and the laser bar bar of different manufacturers may It is different), then the spectrum of pumping source would not drift out 808nm, therefore be adapted to [25,43] DEG C this temperature range.
Therefore, in embodiments of the present invention, there is provided a kind of laser, including:
Pumping source, including at least two different dominant wavelengths laser bar bar, the laser bar of at least two different dominant wavelengths The spectrum of bar composition is continuous in particular range of wavelengths in temperature T, and at least part of scope of particular range of wavelengths is received for [M ﹣ 6, M] Rice or [M ﹣ 3, M ﹢ 3] nanometer or [M, M ﹢ 6] nanometer;
Working media, the dominant wavelength of absorption spectrum is M nanometers, and the light for the outgoing of absorptive pumping source simultaneously realizes that photon jumps Move.
Specifically, laser can be laser amplifier or laser oscillator or other can realize the source, laser apparatus of photon transition It is standby.
In the present invention, the dominant wavelength of working media is M nanometers, because pumping source includes swashing at least two different dominant wavelengths Light bar bar (dominant wavelength of laser bar bar is surveyed when being temperature T), and the laser bar bar composition of at least two different dominant wavelengths Wave-length coverage of the spectrum in temperature T at least in [M ﹣ 6, M] nanometer is continuous, therefore is often changed by temperature in terms of 3 DEG C of spectroscopic studying 1nm Calculate, at least when temperature elevation amplitude is 18 DEG C, the spectrum of pumping source will not drift out M nanometers, therefore laser at least can be with Adapt to [T, T+18] DEG C this temperature range.
Similarly, the spectrum of the laser bar bar composition of at least two different dominant wavelengths is at least received in temperature T at [M ﹣ 3, M ﹢ 3] The wave-length coverage consecutive hours of rice, laser is at least adapted to [T ﹣ 9, T+9] DEG C this temperature range;At least two different main ripples The spectrum of laser bar bar composition long in temperature T at least in the wave-length coverage consecutive hours of [M, M ﹢ 6] nanometer, at least may be used by laser To adapt to [T ﹣ 18, T] DEG C this temperature range.
Therefore, the laser in the present invention can adapt to the larger environment of temperature change, such as it is spaceborne and airborne in.And And, laser of the invention need not use Water Cooling Technology, the problem that the volume and weight brought by water-cooled can be avoided to increase.
Preferably, at least part of scope of particular range of wavelengths is [M ﹣ 6, M ﹢ 6] nanometer, and now laser can at least be fitted Answer [T ﹣ 18, T+18] DEG C this temperature range, that is to say, that at least adapt to 36 degree of temperature change.It is highly preferred that certain wave At least part of scope of scope long is [M ﹣ 10, M ﹢ 10] nanometer, now laser be at least adapted to [T ﹣ 30, T+30] DEG C this Temperature range, that is to say, that at least adapt to 60 degree of temperature change.
The embodiment of the present invention is described in detail with implementation method below in conjunction with the accompanying drawings.
Fig. 2, Fig. 3 and Fig. 4 are referred to, Fig. 2 is the structural representation of one embodiment of laser of the present invention, and Fig. 3 is Fig. 2 The side view of illustrated embodiment, Fig. 4 is the structural representation of one embodiment of the folded battle array 210 of laser bar bar of embodiment illustrated in fig. 2 Figure.As shown in Figure 2 and Figure 3, laser 200 includes pumping source and working media 220, and pumping source includes the folded battle array of 3 laser bar bars 210, the folded battle array 210 of 3 laser bar bars is set around working media 220, and working media 220 absorbs the light of the folded outgoing of battle array 210 simultaneously Realize photon transition.
Working media 220 is specially Nd:YAG crystal bars, dominant wavelength is 808nm.The folded battle array 210 of laser bar bar is by 5 kinds of differences The laser bar bar arrangement of dominant wavelength is formed, and laser bar bar can be rearranged by multiple laser diodes.5 kinds of different dominant wavelengths The spectrum of laser bar bar composition is continuous in particular range of wavelengths in 20 DEG C of temperature, and particular range of wavelengths is [795,815] nm, because This is often changed 3 DEG C of spectroscopic studying 1nm with temperature and calculated, the folded battle array of laser bar bar at least in [- 1,59] DEG C this temperature range Spectrum will not drift out 808 nanometers, i.e. laser and at least adapt to [- 1,59] DEG C this temperature range.
Specifically, 5 kinds of different dominant wavelengths are respectively 795 nanometers, 800 nanometers, 805 nanometers, 810 nanometers and 815 nanometers.When So, 5 kinds of different dominant wavelengths can also be other, such as 794 nanometers, 800 nanometers, 806 nanometers, 811 nanometers and 816 nanometers, main The kind number of wavelength may not be 5 kinds and can be other, such as 3 kinds or 4 kinds or 6 kinds ..., as long as different dominant wavelengths is sharp The spectrum of light bar bar composition is continuous in particular range of wavelengths [795,815] nm in 20 DEG C of temperature.
As shown in figure 4, the folded battle array 210 of laser bar bar can include at least one subregion 211, each subregion can be included at least Two groups of laser bar bars, every group of laser bar bar is the laser bar bar of at least two identical dominant wavelengths.Specifically, the folded battle array of laser bar bar 210 include multiple subregions I, II ..., and each subregion includes this 5 groups of laser bar bars of A, B, C, D, E, and every group of laser bar bar is at least Two laser bar bars of identical dominant wavelength.The dominant wavelength of A, B, C, D, E this 5 groups of laser bar bars be respectively 795 nanometers, 800 nanometers, 805 nanometers, 810 nanometers and 815 nanometers;In with subregion, A, B, C, D, E group laser bar bar sequential in the horizontal direction; The vertical pumping arrangement of laser bar bar of same group (such as A groups).
If additionally, as shown in Fig. 2 fluorescence distribution can be caused come pumping with polychrome bar bar in the same section of crystal bar 220 It is uneven.For example, the laser bar bar of 795nm, 805nm and 810nm is respectively with dominant wavelength come pumping in same section, because brilliant The dominant wavelength of body rod 220 is 808nm, 805nm is absorbed some more, 795nm is absorbed less, so fluorescence distribution can be caused It is uneven.It is therefore preferred that 3 laser bar bar folded battle array 210 axial symmetry centered on crystal bar 220 are set, and positioned at the crystal The laser bar bar in the same section of rod 220 is the laser bar bar of dominant wavelength of the same race, for example, be all A group laser bar bars, so that glimmering Light distribution is uniform.
Additionally, the laser preferably airtight setting in the present embodiment, it is possible to full of nitrogen, to prevent condensation.
In the present embodiment, the dominant wavelength of working media is 808nm, due to 5 kinds of laser bars of different dominant wavelengths of pumping source The spectrum of bar composition is continuous in [795,815] nm in 20 DEG C of temperature, therefore often changes 3 DEG C of spectroscopic studying 1nm with temperature and calculate, Laser is adapted to [- 1,59] DEG C this temperature range, can adapt to the larger environment of temperature change, such as spaceborne and airborne In.Also, the laser of the present embodiment need not use Water Cooling Technology, the volume and weight brought by water-cooled can be avoided from increasing Problem.
The present embodiment is that, with 5 kinds of different dominant wavelengths, and particular range of wavelengths is to illustrate as a example by [795,815] nm. In other embodiments, particular range of wavelengths can also be other scopes, for example [800,820] nm, and this can be fitted as needed The temperature range answered is configured;The laser bar bar arrangement of different dominant wavelengths that pumping source can also be by 2 kinds or 3 kinds or 4 kinds ... Form.
For example, pumping source is formed by the laser bar bar arrangement of 2 kinds of different dominant wavelengths, particular range of wavelengths can for [802, 808] nanometer, makes laser be adapted to [20,38] DEG C this temperature range;Specifically, this 2 kinds different dominant wavelengths can be respectively It is 802 nanometers, 808 nanometers.
For another example, pumping source can also be formed by the laser bar bar arrangement of 12 kinds of different dominant wavelengths, and particular range of wavelengths can be with It is [783,838] nanometer, laser is adapted to [- 70,95] DEG C this temperature range;Specifically, 12 kinds of different dominant wavelengths Can be respectively 783 nanometers, 788 nanometers, 793 nanometers, 798 nanometers, 803 nanometers, 808 nanometers, 813 nanometers, 818 nanometers, 823 Nanometer, 828 nanometers, 833 nanometers and 838 nanometers.
The present embodiment is with working media as Nd:Illustrated as a example by YAG crystal.In other embodiments, working media For other light be can also can absorb and the material of photon transition, such as Nd realized:Glass crystal, dominant wavelength is at 20 DEG C 802nm.Equally, can also now there are the pumping source arranged by the laser bar bar of at least two different dominant wavelengths, certain wave Scope long can also have different set according to different demands.For example, pumping source can include 6 kinds of laser of different dominant wavelengths Bar bar, particular range of wavelengths can be [793,818] nanometer, laser is adapted to [- 28,47] DEG C this temperature range; Specifically, 6 kinds of different dominant wavelengths can be respectively 793 nanometers, 798 nanometers, 803 nanometers, 808 nanometers, 813 nanometers and be received with 818 Rice.
The structure of each subregion can also use other manner in the folded battle array of laser bar bar.For example, referring to Fig. 5, Fig. 5 is figure The structural representation of one embodiment of the subregion of the folded battle array 210 of the laser bar bar of 2 illustrated embodiments.As shown in figure 5, laser bar bar The subregion 511 of folded battle array includes 5 groups of laser bar bars, and every group of laser bar bar is the laser bar bar of at least two identical dominant wavelengths;A、B、 C, D, E group laser bar bar sequential in the horizontal direction, with the horizontal pumping arrangement of the laser bar bar of group.Certainly, different groups is sharp Light bar bar can also vertically sequential.
For another example, Fig. 6 is referred to, Fig. 6 is another embodiment of the subregion of the folded battle array 210 of laser bar bar of embodiment illustrated in fig. 2 Structural representation.As shown in fig. 6, the subregion 611 of the folded battle array of laser bar bar includes the mutually different laser bar of at least two wavelength Bar (specifically this 5 kinds of laser bar bars of A, B, C, D, E), and with the vertical pumping arrangement of laser bar bar of a subregion.
No matter it is understood that each laser bar bar of pumping source is arranged in which way, between each laser bar bar Can connect, in order to be uniformly controlled the electric current of all laser bar bars.Can also be gone here and there between the laser bar bar of dominant wavelength of the same race Connection.
During using laser, user generally requires laser can reach target output energy.Therefore, at this In inventive embodiments, a kind of current adjusting method of above-mentioned laser is additionally provided.Fig. 7 is referred to, Fig. 7 is laser of the present invention Current adjusting method one embodiment schematic flow sheet.As shown in fig. 7, the present embodiment includes:
Step 701, the target output energy for obtaining laser;
Laser can be the laser in above-described embodiment, and it is above-described embodiment that detailed description is referred to;Can also be Various lasers of the prior art.
The executive agent of the present embodiment can be the current adjusting device of laser, and the device can be the outside of laser Autonomous device, it is also possible to be integrated with the equipment inside laser.
Target output energy can be preset by user, and step 701 is specifically as follows and reads the local laser for preserving Target output energy.Certainly, step 701 can also be specifically the target output energy for receiving the laser that user sends in real time Amount.
Step 702, the operating temperature for obtaining laser;
The operating temperature of laser refers mainly to the heat sink temperature of its laser bar bar during laser works.The electric current of laser Adjusting apparatus can include temperature sensor, and step 702 is specifically as follows the temperature sensor after laser start stabilization, surveys Measure the operating temperature of laser.
Because the operating temperature of laser depends primarily on the conditions such as working environment, electric current and the power of laser, therefore Can rule of thumb under preset different condition laser operating temperature.Therefore user can send corresponding according to conditions present Operating temperature, step 702 can also be specifically to receive the preset operating temperature that user sends.
Step 701 is with time order and function of the step 702 without certainty sequentially.
Step 703, the relation for inquiring about preset output energy corresponding with operating temperature and electric current;
Because under different operating temperatures, the output energy of laser is different from the relation of electric current, therefore can swash Before light device starts the use such as airborne, spaceborne, the electric current of laser and the relation of output energy are measured at a temperature of different operating. When laser is used in airborne, spaceborne, operating temperature according to laser inquires about the relation of electric current and output energy.
Step 704, the relation according to output energy and electric current, it is determined that electric current corresponding with target output energy, by laser The electric current of device is adjusted to the electric current of the determination.
Inquired about in step 703 after obtaining exporting relation of the energy with electric current, can determined in this relation defeated with target Go out the corresponding electric current of energy, and the electric current of laser is adjusted to the electric current of the determination.After electric current adjustment, under normal circumstances, swash The reality output energy of light device can be preset with user target output energy close in addition it is equal, so as to meet the demand of user.
For ease of understanding, a concrete application of illustrating below.Fig. 8 is referred to, Fig. 8 is one of embodiment illustrated in fig. 7 specific The schematic diagram of application.
As shown in figure 8, three block curves are that measurement is obtained user in advance, laser is respectively 100 in operating temperature DEG C, 20 DEG C, -60 DEG C when output ENERGY E and electric current I relation.If the target output energy of the preset laser of user is Eo, The electric current of laser can be adjusted to I when laser. operating temperature is -60 DEG C1;It it is 20 DEG C in laser. operating temperature When, the electric current of laser is adjusted to I2;When laser. operating temperature is 100 DEG C, the electric current of laser is adjusted to I3, from And cause that the output energy of laser can be consistent under different operating temperatures.
In the present embodiment, operating temperature according to laser inquires about the relation of corresponding electric current and output energy, then root Determine electric current corresponding with target output energy according to the relation, and laser diode current is adjusted to the electric current of the determination, so that can To enable that laser reaches target output energy desired by user, the output energy of laser is set to keep stabilization.
Fig. 9 is referred to, Fig. 9 is the schematic flow sheet of another embodiment of the current adjusting method of laser of the present invention.Such as Shown in Fig. 9, the present embodiment includes:
Step 901, the target output energy for obtaining laser;
Laser can be the laser in above-described embodiment, and it is above-described embodiment that detailed description is referred to.
The executive agent of the present embodiment can be the current adjusting device of laser, and the device can be the outside of laser Autonomous device, it is also possible to be integrated with the equipment inside laser.
Target output energy can be preset by user, and step 901 is specifically as follows and reads the local laser for preserving Target output energy.Certainly, step 901 can also be specifically the target output energy for receiving the laser that user sends in real time Amount.
Step 902, the reality output energy for obtaining laser;
The current adjusting device of laser can include being arranged on the energy meter of laser output, and step 902 specifically may be used Think after laser start stabilization, energy meter measures the reality output energy of laser.
Step 901 is with time order and function of the step 902 without certainty sequentially.
When step 903, the difference for exporting energy in reality output energy and target exceed predetermined threshold value, exported according to target Energy presses the electric current that Predistribution Algorithm adjusts laser with reality output energy, until the reality output energy and target of the laser The difference for exporting energy is less than or equal to predetermined threshold value.
Predistribution Algorithm can have various, and the present embodiment is illustrated by taking convergence algorithm as an example, and detailed process is as follows:
If reality output ENERGY E is lower than target output ENERGY E o, note present energy is E1, current flow I1=A, then by electricity Stream is adjusted to maximum B, that is, electric current I2=B after adjusting, and measures reality output energy and be designated as E2, now E2 certainty>Eo, therefore Electric current is adjusted to K=A+ (B-A)/2, and measures reality output ENERGY E k.
1. judge | Ek-Eo | whether more than 0.1;
(1) if | Ek-Eo |≤0.1, end operation.
(2) if | Ek-Eo |>0.1
If (a) Ek>Eo, then K=l1+ (l2-l1)/2, and reality output ENERGY E k is measured, perform step 1;
If (b) Ek<Eo, then I1=K, E1=E2, I2=I1+ (l2-I1)/2, l2 are constant, and energy value is E2, K=K+ (l2-l1)/2, l2=K measurement energy values are designated as EK, and measure reality output ENERGY E k, perform step 1.
If reality output ENERGY E is higher than target output ENERGY E o, note present energy is E2, current flow I2=C, then by electricity Stream is adjusted to minimum value D, that is, electric current I1=D after adjusting, and measures reality output energy and be designated as E1, now E1 certainty<Eo, therefore Electric current is adjusted to K=D+ (C-D)/2, and measures reality output ENERGY E k.
2. judge | Ek-Eo | whether more than 0.1;
(1) if | Ek-Eo |≤0.1, end operation.
(2) if | Ek-Eo |>0.1
If (a) Ek>Eo, then K=l1+ (l2-l1)/2, and reality output ENERGY E k is measured, perform step 2;
If (b) Ek<Eo, then I1=K, E1=E2, I2=I1+ (l2-I1)/2, l2 are constant, and energy value is E2, K=K+ (l2-l1)/2, l2=K measurement energy values are designated as EK, and measure reality output ENERGY E k, perform step 2.
In the present embodiment, by measuring reality output energy, and energy is exported with reality output energy by pre- according to target The electric current that algorithm adjusts laser is put, to cause that the reality output energy of laser is less than or equal to the difference of target output energy Predetermined threshold value, so that laser can reach target output energy desired by user, makes the output energy of laser Keep stabilization.
Additionally, adjust to the electric current of the determination electric current of laser in 704 the step of Fig. 7 embodiments, normally In the case of, the output energy of laser can as expected be changed into or export energy close to target, but in some cases, laser Output energy is likely to not be changed into as expected or exports energy close to target.Therefore, the electric current of laser is adjusted in step 704 After the whole electric current to the determination, it is also possible to further obtain the reality output energy of laser;In reality output energy and mesh When the difference of mark output energy exceeds predetermined threshold value, Predistribution Algorithm adjustment is pressed according to reality output energy and target output energy and is swashed The electric current of light device, until the reality output energy of the laser is less than or equal to predetermined threshold value with the difference of target output energy.
Corresponding to embodiment illustrated in fig. 7, in embodiments of the present invention, a kind of electric current adjustment dress of laser is additionally provided Put.Figure 10 is referred to, Figure 10 is the structural representation of one embodiment of the current adjusting device of laser of the present invention.Such as Figure 10 Shown, the present embodiment includes:
First acquisition module 1010, the target for obtaining laser exports energy;
In the present embodiment, laser can be the laser in above-described embodiment, and it is above-mentioned implementation that detailed description is referred to Example;Can also be various lasers of the prior art.
Target output energy can be preset by user, and the first acquisition module 1010 can include reading unit, be used for Read the target output energy of the local laser for preserving.First acquisition module 1010 can also include receiving unit, for reality When ground receive user send laser target output energy.
Second acquisition module 1020, the operating temperature for obtaining laser;
Second acquisition module 1020 can include temperature sensor, for after laser start stabilization, measuring laser Operating temperature.Second acquisition module 1020 can also include receiving unit, the preset work temperature for receiving user's transmission Degree.
Enquiry module 1030, the relation for inquiring about preset output energy corresponding with operating temperature and electric current;
After the operating temperature that the second acquisition module 1020 gets laser, enquiry module 1030 is inquired about and the work temperature The relation of the corresponding output energy of degree and electric current.
First adjusting module 1040, for the relation according to output energy and electric current, it is determined that corresponding with target output energy Electric current, the electric current of laser is adjusted to the electric current of the determination.
First adjusting module 1040 can after enquiry module 1030 inquires about the relation for obtaining exporting energy and electric current, it is determined that Electric current corresponding with target output energy simultaneously carries out electric current adjustment.After electric current adjustment, under normal circumstances, the reality output of laser Energy can be preset with user target output energy close in addition it is equal, so as to meet the requirement of user.
But in some cases, the output energy of laser is likely to not be changed into as expected or exports energy close to target. It is therefore preferred that current adjusting device also includes:
3rd acquisition module, for the electric current of laser to be adjusted to the electric current of the determination in the first adjusting module, Obtain the reality output energy of laser;
Second adjusting module, during for the difference in reality output energy and target output energy beyond predetermined threshold value, root The electric current that Predistribution Algorithm adjusts laser is pressed according to reality output energy and target output energy, until the reality output of the laser Energy is less than or equal to predetermined threshold value with the difference of target output energy.
In the present embodiment, operating temperature according to laser inquires about the relation of corresponding electric current and output energy, then root Determine electric current corresponding with target output energy according to the relation, and laser diode current is adjusted to the electric current of the determination, so that can To enable that laser reaches target output energy desired by user, the output energy of laser is set to keep stabilization.
Corresponding to embodiment illustrated in fig. 9, in embodiments of the present invention, the electric current adjustment dress of another laser is additionally provided Put.Figure 11 is referred to, Figure 11 is the structural representation of another embodiment of the current adjusting device of laser of the present invention.Such as Figure 11 Shown, the present embodiment includes:
First acquisition module 1110, the target for obtaining laser exports energy;
Laser can be the laser in above-described embodiment, and it is above-described embodiment that detailed description is referred to.
Target output energy can be preset by user, and the first acquisition module can specifically include reading unit, be used for Read the target output energy of the local laser for preserving.Certainly, the first acquisition module can also specifically include receiving unit, use Energy is exported in the target of the laser that reception user sends in real time.
Second acquisition module 1120, the reality output energy for obtaining laser;
Second acquisition module 1120 can include being arranged on the energy meter of laser output, and the energy meter is used in laser The reality output energy of laser is measured after device start stabilization.
Adjusting module 1130, during for the difference in reality output energy and target output energy beyond predetermined threshold value, root The electric current that Predistribution Algorithm adjusts laser is pressed according to target output energy and reality output energy, until the reality output of the laser Energy is less than or equal to predetermined threshold value with the difference of target output energy.
Predistribution Algorithm can have various, such as convergence algorithm.
In the present embodiment, by measuring reality output energy, and energy is exported with reality output energy by pre- according to target The electric current that algorithm adjusts laser is put, to cause that the reality output energy of laser is less than or equal to the difference of target output energy Predetermined threshold value, so that laser can reach target output energy desired by user, makes the output energy of laser Keep stabilization.
Corresponding to embodiment illustrated in fig. 7, in embodiments of the present invention, a kind of laser system is additionally provided.Refer to Figure 12, Figure 12 is the structural representation of one embodiment of laser system of the present invention.As shown in figure 12, the present embodiment includes:
Laser 1210, including:Pumping source, including at least two different dominant wavelengths laser bar bar, this is at least two not The spectrum constituted with the laser bar bar of dominant wavelength continuous, at least portion of particular range of wavelengths in particular range of wavelengths in temperature T Scope is divided to be [M ﹣ 6, M] nanometer or [M ﹣ 3, M ﹢ 3] nanometer or [M, M ﹢ 6] nanometer;Working media, the dominant wavelength of absorption spectrum is M Nanometer, light for the outgoing of absorptive pumping source simultaneously realizes photon transition;
Laser 1210 can be the laser in above-described embodiment, and it is above-described embodiment that detailed description is referred to.
Current adjusting device 1220, the target for obtaining laser exports energy;Obtain the operating temperature of laser;Look into Ask the relation of preset output energy corresponding with operating temperature and electric current;According to output energy and the relation of electric current, it is determined that with The corresponding electric current of target output energy, the electric current of laser is adjusted to the electric current of the determination.
The detailed description of current adjusting device 1220 refers to the explanation of Fig. 7 and embodiment illustrated in fig. 10.
Corresponding to embodiment illustrated in fig. 9, in embodiments of the present invention, another laser system is additionally provided.Refer to figure 13, Figure 13 is the structural representation of another embodiment of laser system of the present invention.As shown in figure 13, the present embodiment includes:
Laser 1310, including:Pumping source, including at least two different dominant wavelengths laser bar bar, this is at least two not The spectrum constituted with the laser bar bar of dominant wavelength continuous, at least portion of particular range of wavelengths in particular range of wavelengths in temperature T Scope is divided to be [M ﹣ 6, M] nanometer or [M ﹣ 3, M ﹢ 3] nanometer or [M, M ﹢ 6] nanometer;Working media, the dominant wavelength of absorption spectrum is M Nanometer, light for the outgoing of absorptive pumping source simultaneously realizes photon transition;
Laser 1310 can be the laser in above-described embodiment, and it is above-described embodiment that detailed description is referred to.
Current adjusting device 1320, the target for obtaining laser exports energy;Obtain the reality output energy of laser Amount;When the difference of reality output energy and target output energy exceeds predetermined threshold value, energy is exported according to target defeated with actual Go out the electric current that energy is adjusted laser by Predistribution Algorithm, until the reality output energy of the laser exports the difference of energy with target Value is less than or equal to predetermined threshold value.
The detailed description of current adjusting device 1320 refers to the explanation of Fig. 9 and embodiment illustrated in fig. 11.
Corresponding to embodiment illustrated in fig. 7, in embodiments of the present invention, the electric current adjustment for additionally providing a kind of laser sets It is standby.Figure 14 is referred to, Figure 14 is the structural representation of one embodiment of the electric current adjusting device of laser of the present invention.Such as Figure 14 Shown, the electric current adjusting device 1400 of laser includes:
At least one processor 1410, in Figure 14 by taking a processor 1410 as an example;And with least one processor The memory 1420 of 1410 communication connections;Wherein, memory storage has and can be referred to by the instruction repertorie of at least one computing device Program is made by least one computing device, so that at least one processor is able to carry out the electric current of laser in Fig. 7 embodiments Method of adjustment.
Processor 1410 and memory 1420 can be connected by bus or other modes, be connected with by bus in Figure 14 It is connected in example.
Memory 1420 can be used to store non-volatile software journey as a kind of non-volatile computer readable storage medium storing program for executing The current adjusting method of the laser in sequence, non-volatile computer executable program and module, such as Fig. 7 embodiments is corresponding Programmed instruction/module.Processor 1410 by run non-volatile software program of the storage in memory 1420, instruction and Module, so as to perform various function application and the data processing of the electric current adjusting device of laser, that is, in realizing Fig. 7 embodiments Laser current adjusting method.
Memory 1420 can include storing program area and storage data field, wherein, storing program area can store operation system Application program required for system, at least one function;Storage data field can store the electric current adjustment side of laser in Fig. 7 embodiments Method uses created data etc..Additionally, memory 1420 can include high-speed random access memory, can also include non- Volatile memory, for example, at least one disk memory, flush memory device or other non-volatile solid state memory parts. In some embodiments, memory 1420 may include the memory remotely located relative to processor 1410, these remote memories Can be by network connection to electronic equipment.The example of above-mentioned network includes but is not limited to internet, intranet, local Net, mobile radio communication and combinations thereof.
One or more module is stored in memory 1420, when being performed by one or more processor 1410, The current adjusting method of the laser of the electric current adjusting device for being applied to laser in execution Fig. 7 embodiments.
Corresponding to embodiment illustrated in fig. 9, in embodiments of the present invention, the electric current adjustment for additionally providing another laser sets It is standby.Figure 15 is referred to, Figure 15 is the structural representation of one embodiment of the electric current adjusting device of laser of the present invention.Such as Figure 15 Shown, the electric current adjusting device 1500 of laser includes:
At least one processor 1510, in Figure 15 by taking a processor 1510 as an example;And with least one processor The memory 1520 of 1510 communication connections;Wherein, memory storage has and can be referred to by the instruction repertorie of at least one computing device Program is made by least one computing device, so that at least one processor is able to carry out the electric current of laser in Fig. 9 embodiments Method of adjustment.
Processor 1510 and memory 1520 can be connected by bus or other modes, be connected with by bus in Figure 15 It is connected in example.
Memory 1520 can be used to store non-volatile software journey as a kind of non-volatile computer readable storage medium storing program for executing The current adjusting method of the laser in sequence, non-volatile computer executable program and module, such as Fig. 9 embodiments is corresponding Programmed instruction/module.Processor 1510 by run non-volatile software program of the storage in memory 1520, instruction and Module, so as to perform various function application and the data processing of the electric current adjusting device of laser, that is, in realizing Fig. 9 embodiments Laser current adjusting method.
Memory 1520 can include storing program area and storage data field, wherein, storing program area can store operation system Application program required for system, at least one function;Storage data field can store the electric current adjustment side of laser in Fig. 9 embodiments Method uses created data etc..Additionally, memory 1520 can include high-speed random access memory, can also include non- Volatile memory, for example, at least one disk memory, flush memory device or other non-volatile solid state memory parts. In some embodiments, memory 1520 may include the memory remotely located relative to processor 1510, these remote memories Can be by network connection to electronic equipment.The example of above-mentioned network includes but is not limited to internet, intranet, local Net, mobile radio communication and combinations thereof.
One or more module is stored in memory 1520, when being performed by one or more processor 1510, The current adjusting method of the laser of the electric current adjusting device for being applied to laser in execution Fig. 9 embodiments.
Because the dominant wavelength of the absorption spectrum of laser works medium is M nanometers, and the spectrum of the pumping source in laser Can be drifted about as temperature changes, therefore, at a temperature of different operating, the spectrum of the laser bar bar of dominant wavelength not of the same race is located at M Nanometer, can effectively be absorbed by working media.Therefore can be opened under current operating temperature and be located at M nanometers positioned at current light spectrum Laser bar bar, and other laser bar bars are closed, can so reduce the power consumption of laser.
Therefore, in embodiments of the present invention, a kind of laser Control Method is additionally provided.Figure 16 is referred to, Figure 16 is this The schematic flow sheet of one embodiment of invention laser Control Method.As shown in figure 16, the present embodiment includes:
Step 1601, the operating temperature for obtaining laser;
The executive agent of the present embodiment can be laser control device, and the device can be that the outside of laser independently sets It is standby, it is also possible to be integrated with the module inside laser.
The operating temperature of laser refers mainly to the heat sink temperature of its laser bar bar during laser works.
Can in laser works (now all laser bar bars of laser may be in opening, it is also possible to Only fraction of laser light bar bar is in opening), by the operating temperature of temperature sensor Real-time Collection laser.
Because the operating temperature of laser depends primarily on the conditions such as working environment, electric current and the power of laser, therefore Can rule of thumb under preset different condition laser operating temperature.Therefore user can send corresponding according to conditions present Operating temperature, step 1601 specifically can also receive user's hair by laser control device when laser is not started working also The preset operating temperature sent.
Step 1602, dominant wavelength corresponding with operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;
Because the dominant wavelength of the absorption spectrum of laser works medium is M nanometers, and the spectrum of the pumping source in laser Can be drifted about as temperature changes, therefore, at a temperature of different operating, the spectrum of the laser bar bar of dominant wavelength not of the same race is located at M Nanometer, can effectively be absorbed by working media.
For example, pumping source includes 5 kinds of laser bar bars of different dominant wavelengths, 5 kinds of different dominant wavelengths be respectively 795 nanometers, 800 Nanometer, 805 nanometers, 810 nanometers with 815 nanometers, their spectrum respectively operating temperature [55 DEG C, 70 DEG C), [40 DEG C, 55 DEG C), [25 DEG C, 40 DEG C), [10 DEG C, 25 DEG C), [- 5 DEG C, 10 DEG C) when be located at M nanometers.
Therefore, it can to measure in advance at a temperature of different operating, the spectrum of the laser bar bar of which kind of dominant wavelength is located at M nanometers, And preserve the corresponding relation of operating temperature and laser bar bar dominant wavelength.
After operating temperature being got in step 1601, inquiry and the work temperature from the corresponding relation of temperature and dominant wavelength Spend corresponding dominant wavelength.Operating temperature is for example got for 50 DEG C, corresponding dominant wavelength is inquired for 800 nanometers.
The laser bar bar of the dominant wavelength for obtaining is inquired about in opening in step 1603, control laser, except the main ripple All laser bar bars outside length are at least partly in off position.
After dominant wavelength corresponding with operating temperature is inquired, the laser bar bar of the dominant wavelength can be controlled to open shape State, while all or part of all laser bar bars in addition to the dominant wavelength can be controlled in off position, it is preferable that control All laser bar bars in addition to the dominant wavelength are made in off position, farthest to save power consumption.For example, control is looked into The dominant wavelength that obtains of inquiry is that 800 nanometers of laser bar bar is opened, control dominant wavelength for 795 nanometers, 805 nanometers, 810 nanometers and 815 nanometers of laser bar bar is closed.
In the present embodiment, the operating temperature of laser can be ceaselessly obtained, and switch not as operating temperature changes The laser bar bar of same dominant wavelength is in opening.For example, laser be used in it is spaceborne in, with changing for external environment condition Become, the operating temperature of laser changes into 50 DEG C from 20 DEG C, then, the laser bar bar in laser by opening 810 nanometers switches To the laser bar bar for opening 800 nanometers, so as to realize the self adaptation to external environment condition.
Because at a temperature of different operating, the spectrum of the laser bar bar of dominant wavelength not of the same race is located at M nanometers, can be situated between by work Matter effectively absorbs.In the present embodiment, by obtaining operating temperature, and corresponding dominant wavelength is inquired according to operating temperature, controlled The laser bar bar of the dominant wavelength is opened in laser, and other laser bar bars are at least partially closed.Own relative in laser The scheme that laser bar bar is all opened, the present embodiment both can guarantee that working media effectively absorbed the light of laser bar bar, and effectively reduce The power consumption of laser.
Figure 16 embodiments can be combined with Fig. 7 embodiments, laser is both reduced power consumption, user can reached again and is wished The target output energy of prestige.Figure 17 is referred to, Figure 17 is that the flow of another embodiment of laser Control Method of the present invention is illustrated Figure.As shown in figure 17, the present embodiment includes:
Step 1701, the operating temperature for obtaining laser;
Detailed description refers to step 1601.
Step 1702, dominant wavelength corresponding with operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;
Detailed description refers to step 1602.
The laser bar bar of the dominant wavelength for obtaining is inquired about in opening in step 1703, control laser, except the main ripple All laser bar bars outside length are at least partly in off position;
Detailed description refers to step 1603.
Step 1704, the target output energy for obtaining laser;
Detailed description refers to step 701.
In the present embodiment, step 1704 is performed after step 1703, but it is understood that, it is fixed to be not limited thereto, step Rapid 1704 can also perform before step 1701.
Step 1705, the relation for inquiring about preset output energy corresponding with operating temperature and electric current;
Detailed description refers to step 703.
Step 1706, the relation according to output energy and electric current, it is determined that electric current corresponding with target output energy, by laser The electric current that the laser bar bar of the dominant wavelength for obtaining is inquired about in device is adjusted to the electric current of the determination.
Detailed description refers to step 704.
For example, pumping source includes 5 kinds of laser bar bars of different dominant wavelengths, 5 kinds of different dominant wavelengths be respectively 795 nanometers, 800 Nanometer, 805 nanometers, 810 nanometers and 815 nanometers.Inquiry obtains dominant wavelength for 800 nanometers in step 1702, is controlled in step 1703 Dominant wavelength processed is that 800 nanometers of laser bar bar is opened, and it is 795 nanometers, 805 nanometers, 810 nanometers and 815 nanometers to control dominant wavelength Laser bar bar close, in step 1706 by the electric current of the laser bar bar that dominant wavelength is 800 nanometers adjust to determine electric current.
In the present embodiment, controlling the laser bar bar of corresponding dominant wavelength according to operating temperature after opening, according to The relation of the corresponding preset output energy of operating temperature inquiry and electric current, and determined to export energy pair with target according to the relation The electric current answered, and the electric current of the laser bar bar of the corresponding dominant wavelength is adjusted to the electric current so that laser both saves work( Consumption, can reach target output energy desired by user again, meet the demand of user.
Additionally, adjusting to the electric current of the determination electric current of laser bar bar in step 1706, under normal circumstances, swash The output energy of light device can as expected be changed into or export energy close to target, but in some cases, the output energy of laser It is likely to not be changed into as expected or exports energy close to target.Therefore, in step 1706 by the electric current of laser bar bar adjust to After the electric current of the determination, it is also possible to further obtain the reality output energy of laser;It is defeated in reality output energy and target When the difference for going out energy exceeds predetermined threshold value, Predistribution Algorithm adjustment laser is pressed according to reality output energy and target output energy Electric current, until the difference of the reality output energy of the laser and target output energy is less than or equal to predetermined threshold value.
Figure 16 embodiments can also be combined with Fig. 9 embodiments, laser is both reduced power consumption, user can be reached again Desired target exports energy.Figure 18 is referred to, Figure 18 is that the flow of another embodiment of laser Control Method of the present invention is shown It is intended to.As shown in figure 18, the present embodiment includes:
Step 1801, the operating temperature for obtaining laser;
Detailed description refers to step 1601.
Step 1802, dominant wavelength corresponding with operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;
Detailed description refers to step 1602.
The laser bar bar of the dominant wavelength for obtaining is inquired about in opening in step 1803, control laser, except the main ripple All laser bar bars outside length are at least partly in off position;
Detailed description refers to step 1603.
Step 1804, the target output energy for obtaining laser;
Detailed description refers to step 901.
Step 1805, the reality output energy for obtaining laser;
Detailed description refers to step 902.
It is defeated according to target when step 1806, the difference for exporting energy in reality output energy and target exceed predetermined threshold value Go out energy and reality output energy, by the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser, Until the reality output energy of the laser is less than or equal to predetermined threshold value with the difference of target output energy.
Detailed description refers to step 903.
For example, pumping source includes 5 kinds of laser bar bars of different dominant wavelengths, 5 kinds of different dominant wavelengths be respectively 795 nanometers, 800 Nanometer, 805 nanometers, 810 nanometers and 815 nanometers.Inquiry obtains dominant wavelength for 800 nanometers in step 1802, is controlled in step 1803 Dominant wavelength processed is that 800 nanometers of laser bar bar is opened, and it is 795 nanometers, 805 nanometers, 810 nanometers and 815 nanometers to control dominant wavelength Laser bar bar close, in step 1806 by Predistribution Algorithm adjustment dominant wavelength be 800 nanometers laser bar bar electric current.
In the present embodiment, the laser bar bar of corresponding dominant wavelength is being controlled according to operating temperature after opening, by pre- The electric current that algorithm adjusts the laser bar bar of the corresponding dominant wavelength is put, until the reality output energy of laser exports energy with target The difference of amount is less than or equal to predetermined threshold value, so that laser both saves power consumption, target desired by user can be reached again defeated Go out energy, meet the demand of user.
In embodiments of the present invention, a kind of laser control device is additionally provided.Figure 19 is referred to, Figure 19 is that the present invention swashs The structural representation of one embodiment of light device control device.As shown in figure 19, the present embodiment includes:
First acquisition module 1910, the operating temperature for obtaining laser;
Detailed description refers to step 1601.
First acquisition module can specifically include temperature sensor, for the operating temperature of Real-time Collection laser.
First enquiry module 1920, for the inquiry from the corresponding relation of preset temperature and dominant wavelength and operating temperature pair The dominant wavelength answered;
Detailed description refers to step 1601.
After the first acquisition module 1910 gets operating temperature, the first enquiry module is closed from temperature is corresponding with dominant wavelength Dominant wavelength corresponding with the operating temperature is inquired about in system.
Control module 1930, for controlling to inquire about the laser bar bar of the dominant wavelength for obtaining in opening in laser, removes All laser bar bars outside the dominant wavelength are at least partly in off position.
Detailed description refers to step 1930.
After the first enquiry module 1920 inquires dominant wavelength, control module 1930 controls the laser bar bar of the dominant wavelength to exist Opening, controls other laser bar bars all closed or partially closed.
Because at a temperature of different operating, the spectrum of the laser bar bar of dominant wavelength not of the same race is located at M nanometers, can be situated between by work Matter effectively absorbs.In the present embodiment, by obtaining operating temperature, and corresponding dominant wavelength is inquired according to operating temperature, controlled The laser bar bar of the dominant wavelength is opened in laser, and other laser bar bars are at least partially closed.Own relative in laser The scheme that laser bar bar is all opened, the present embodiment both can guarantee that working media effectively absorbed the light of laser bar bar, and effectively reduce The power consumption of laser.
Corresponding to embodiment illustrated in fig. 17, in embodiments of the present invention, another implementation of laser control device is also provided Example.Figure 20 is referred to, Figure 20 is the structural representation of another embodiment of laser control device of the present invention.As shown in figure 20, The present embodiment includes:
First acquisition module 2010, the operating temperature for obtaining laser;
First enquiry module 2020, for the inquiry from the corresponding relation of preset temperature and dominant wavelength and operating temperature pair The dominant wavelength answered;
Control module 2030, for controlling to inquire about the laser bar bar of the dominant wavelength for obtaining in opening in laser, removes All laser bar bars outside the dominant wavelength are at least partly in off position;
Second acquisition module 2040, the target for obtaining laser exports energy;
Second enquiry module 2050, the relation for inquiring about preset output energy corresponding with operating temperature and electric current;
First adjusting module 2060, for the relation according to output energy and electric current, it is determined that corresponding with target output energy Electric current, the electric current that the laser bar bar of the dominant wavelength for obtaining will be inquired about in laser adjusted to the electric current of the determination.
In the present embodiment, controlling the laser bar bar of corresponding dominant wavelength according to operating temperature after opening, according to The relation of the corresponding preset output energy of operating temperature inquiry and electric current, and determined to export energy pair with target according to the relation The electric current answered, and the electric current of the laser bar bar of the corresponding dominant wavelength is adjusted to the electric current so that laser both saves work( Consumption, can reach target output energy desired by user again, meet the demand of user.
Preferably, the present embodiment can also include:3rd acquisition module, the reality output energy for obtaining laser; Second adjusting module, it is defeated according to target for when the difference of reality output energy and target output energy exceeds predetermined threshold value Go out energy and reality output energy, by the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser, Until the reality output energy of the laser is less than or equal to predetermined threshold value with the difference of target output energy.
Corresponding to embodiment illustrated in fig. 18, in embodiments of the present invention, another implementation of laser control device is also provided Example.Figure 21 is referred to, Figure 21 is the structural representation of another embodiment of laser control device of the present invention.As shown in figure 21, The present embodiment includes:
First acquisition module 2110, the operating temperature for obtaining laser;
First enquiry module 2120, for the inquiry from the corresponding relation of preset temperature and dominant wavelength and operating temperature pair The dominant wavelength answered;
Control module 2130, for controlling to inquire about the laser bar bar of the dominant wavelength for obtaining in opening in laser, removes All laser bar bars outside the dominant wavelength are at least partly in off position;
4th acquisition module 2140, the target for obtaining laser exports energy;
5th acquisition module 2150, the reality output energy for obtaining laser;
3rd adjusting module 2160, for exceeding predetermined threshold value in the difference of reality output energy and target output energy When, energy and reality output energy are exported according to target, by inquiring about swashing for the dominant wavelength that obtains in Predistribution Algorithm adjustment laser The electric current of light bar bar, until the reality output energy of the laser is less than or equal to predetermined threshold value with the difference of target output energy.
In the present embodiment, the laser bar bar of corresponding dominant wavelength is being controlled according to operating temperature after opening, by pre- The electric current that algorithm adjusts the laser bar bar of the corresponding dominant wavelength is put, until the reality output energy of laser exports energy with target The difference of amount is less than or equal to predetermined threshold value, so that laser both saves power consumption, target desired by user can be reached again defeated Go out energy, meet the demand of user.
Corresponding to embodiment illustrated in fig. 16, in embodiments of the present invention, another laser system is additionally provided, the laser system System includes:
Laser, including:Pumping source, including at least two different dominant wavelengths laser bar bar, this is at least two different main The spectrum of the laser bar bar composition of wavelength is continuous in particular range of wavelengths in temperature T, at least part of model of particular range of wavelengths Enclose is [M ﹣ 6, M] nanometer or [M ﹣ 3, M ﹢ 3] nanometer or [M, M ﹢ 6] nanometer;Working media, the dominant wavelength of absorption spectrum is M nanometers, Light for the outgoing of absorptive pumping source simultaneously realizes photon transition;
Control device, obtains the operating temperature of laser;From the corresponding relation of preset temperature and dominant wavelength inquiry with The corresponding dominant wavelength of operating temperature;The laser bar bar of the dominant wavelength for obtaining is inquired about in opening in control laser, except this All laser bar bars outside dominant wavelength are at least partly in off position.
Preferably, control device is additionally operable to obtain the target output energy of laser;Inquiry is corresponding with operating temperature pre- The output energy and the relation of electric current put;According to output energy and the relation of electric current, it is determined that electricity corresponding with target output energy Stream, the electric current that the laser bar bar of the dominant wavelength for obtaining will be inquired about in laser is adjusted to the electric current of the determination.Further, control Device is additionally operable to be adjusted to the electric current of the determination in the electric current of the laser bar bar that will inquire about the dominant wavelength for obtaining in laser, Obtain the reality output energy of laser;When the difference of reality output energy and target output energy exceeds predetermined threshold value, root According to target output energy and reality output energy, by the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser Electric current, until the difference of the reality output energy of the laser and target output energy is less than or equal to predetermined threshold value.
Or, control device is additionally operable to obtain the target output energy of laser;Obtain the reality output energy of laser; When the difference of reality output energy and target output energy exceeds predetermined threshold value, energy and reality output energy are exported according to target Amount, by the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in Predistribution Algorithm adjustment laser, until the reality of the laser Output energy is less than or equal to predetermined threshold value with the difference of target output energy.
Preferably, connected between the laser bar bar of dominant wavelength of the same race in laser, controlled respectively not in order to control device With the electric current of the laser bar bar of dominant wavelength.
Corresponding to embodiment illustrated in fig. 16, in embodiments of the present invention, a kind of laser control arrangements are additionally provided.Please join Figure 22 is read, Figure 22 is the structural representation of one embodiment of laser control arrangements of the present invention.As shown in figure 22, laser control Control equipment 2200 includes:
At least one processor 2210, in Figure 22 by taking a processor 2210 as an example;And with least one processor The memory 2220 of 2210 communication connections;Wherein, memory storage has and can be referred to by the instruction repertorie of at least one computing device Program is made by least one computing device, so that at least one processor is able to carry out laser control side in Figure 16 embodiments Method.
Processor 2210 and memory 2220 can be connected by bus or other modes, be connected with by bus in Figure 22 It is connected in example.
Memory 2220 can be used to store non-volatile software journey as a kind of non-volatile computer readable storage medium storing program for executing The corresponding program of laser Control Method in sequence, non-volatile computer executable program and module, such as Figure 16 embodiments Instruction/module.Processor 2210 is by running the non-volatile software program stored in memory 2220, instruction and mould Block, so as to perform various function application and the data processing of laser control arrangements, that is, realizes the laser in Figure 16 embodiments Device control method.
Memory 2220 can include storing program area and storage data field, wherein, storing program area can store operation system Application program required for system, at least one function;Storage data field can store laser Control Method in Figure 16 embodiments Use created data etc..Additionally, memory 2220 can include high-speed random access memory, can also include non-volatile Property memory, for example, at least one disk memory, flush memory device or other non-volatile solid state memory parts.At some In embodiment, memory 2220 may include the memory remotely located relative to processor 2210, and these remote memories can be with By network connection to electronic equipment.The example of above-mentioned network includes but is not limited to internet, intranet, LAN, shifting Dynamic communication network and combinations thereof.
One or more module is stored in memory 2220, when being performed by one or more processor 2210, Perform the laser Control Method for being applied to laser control arrangements in Figure 16 embodiments.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, may be referred to the corresponding process in above method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be with Realize by another way.For example, device embodiment described above is only schematical, for example, the unit Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example multiple units or component Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings of device or unit by some interfaces Close or communicate to connect, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme 's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list Unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every using this Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, is included within the scope of the present invention.

Claims (17)

1. a kind of laser system, it is characterised in that including:
Laser, including:Pumping source, including at least two different dominant wavelengths laser bar bar, at least two different dominant wavelengths Laser bar bar composition spectrum it is continuous in particular range of wavelengths in temperature T, at least part of scope of particular range of wavelengths is [M ﹣ 6, M] nanometer or [M ﹣ 3, M ﹢ 3] nanometer or [M, M ﹢ 6] nanometer;Working media, the dominant wavelength of absorption spectrum is M nanometers, is used for Absorb the light of the pumping source outgoing and realize photon transition;
Control device, obtains the operating temperature of laser;Inquired about in corresponding relation from preset temperature with dominant wavelength with it is described The corresponding dominant wavelength of operating temperature;Control to inquire about the laser bar bar of the dominant wavelength for obtaining in opening in the laser, remove All laser bar bars outside the dominant wavelength are at least partly in off position.
2. laser system according to claim 1, it is characterised in that the control device is additionally operable to obtain the laser Target output energy;The relation of inquiry preset output energy corresponding with the operating temperature and electric current;According to described defeated Go out the relation of energy and electric current, it is determined that electric current corresponding with target output energy, inquiry in the laser is obtained The electric current of the laser bar bar of dominant wavelength is adjusted to the electric current of the determination.
3. laser system according to claim 2, it is characterised in that the control device is additionally operable to by the laser The electric current of the middle laser bar bar for inquiring about the dominant wavelength for obtaining is adjusted to the electric current of the determination, obtains the reality of the laser Output energy;It is defeated according to the target when the difference of the reality output energy and target output energy exceeds predetermined threshold value Go out energy and reality output energy, by the electricity of the laser bar bar that the dominant wavelength for obtaining is inquired about in the Predistribution Algorithm adjustment laser Stream, until the reality output energy of the laser is less than or equal to predetermined threshold value with the difference of target output energy.
4. laser system according to claim 1, it is characterised in that the control device is additionally operable to obtain the laser Target output energy;Obtain the reality output energy of the laser;Energy is exported in the reality output energy and target Difference when exceeding predetermined threshold value, energy and reality output energy are exported according to the target, swash by Predistribution Algorithm adjustment is described The electric current of the laser bar bar of the dominant wavelength for obtaining is inquired about in light device, until the reality output energy of the laser exports energy with target The difference of amount is less than or equal to predetermined threshold value.
5. laser system according to any one of claim 1 to 4, it is characterised in that main ripple of the same race in the laser Connected between laser bar bar long.
6. a kind of laser Control Method, it is characterised in that including:
Obtain the operating temperature of laser;
Dominant wavelength corresponding with the operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;
Control to inquire about the laser bar bar of the dominant wavelength for obtaining in opening, the institute in addition to the dominant wavelength in the laser There is laser bar bar at least partly in off position.
7. laser Control Method according to claim 6, it is characterised in that described all in addition to the dominant wavelength Laser bar bar is at least partly specially in off position:
All laser bar bars in addition to the dominant wavelength are in off position.
8. laser Control Method according to claim 6, it is characterised in that the operating temperature tool of the acquisition laser Body is:
The operating temperature of laser described in temperature sensor Real-time Collection.
9. laser Control Method according to claim 6, it is characterised in that the method also includes:
Obtain the target output energy of the laser;
The relation of inquiry preset output energy corresponding with the operating temperature and electric current;
According to the output energy and the relation of electric current, it is determined that electric current corresponding with target output energy, by the laser The electric current that the laser bar bar of the dominant wavelength for obtaining is inquired about in device is adjusted to the electric current of the determination.
10. laser Control Method according to claim 9, it is characterised in that inquiry will obtained in the laser The electric current of laser bar bar of dominant wavelength adjust to the electric current of the determination, also include:
Obtain the reality output energy of the laser;
When the difference of the reality output energy and target output energy exceeds predetermined threshold value, energy is exported according to the target With reality output energy, the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in the laser is adjusted by Predistribution Algorithm, directly Reality output energy to the laser is less than or equal to predetermined threshold value with the difference of target output energy.
11. laser Control Methods according to claim 6, it is characterised in that the method also includes:
Obtain the target output energy of the laser;
Obtain the reality output energy of the laser;
When the difference of the reality output energy and target output energy exceeds predetermined threshold value, energy is exported according to the target With reality output energy, the electric current of the laser bar bar that the dominant wavelength for obtaining is inquired about in the laser is adjusted by Predistribution Algorithm, directly Reality output energy to the laser is less than or equal to predetermined threshold value with the difference of target output energy.
A kind of 12. laser control devices, it is characterised in that including:
First acquisition module, the operating temperature for obtaining laser;
First enquiry module, for inquiring about corresponding with the operating temperature in the corresponding relation of dominant wavelength from preset temperature Dominant wavelength;
Control module, for controlling to inquire about the laser bar bar of the dominant wavelength for obtaining in opening in the laser, except this All laser bar bars outside dominant wavelength are at least partly in off position.
13. laser control devices according to claim 12, it is characterised in that the first acquisition module includes TEMP Device, for the operating temperature of laser described in Real-time Collection.
14. laser control devices according to claim 12, it is characterised in that the device also includes:
Second acquisition module, the target for obtaining the laser exports energy;
Second looks into module, the relation for inquiring about preset output energy corresponding with the operating temperature and electric current;
First adjusting module, for the relation according to the output energy and electric current, it is determined that corresponding with target output energy Electric current, the electric current that the laser bar bar of the dominant wavelength for obtaining will be inquired about in the laser adjusted to the electric current of the determination.
15. laser control devices according to claim 14, it is characterised in that the device also includes:
3rd acquisition module, the reality output energy for obtaining the laser;
Second adjusting module, during for the difference in the reality output energy and target output energy beyond predetermined threshold value, root According to the target output energy and reality output energy, adjusted by Predistribution Algorithm and the dominant wavelength that obtains is inquired about in the laser The electric current of laser bar bar, until the reality output energy of the laser is less than or equal to default threshold with the difference of target output energy Value.
16. laser control devices according to claim 12, it is characterised in that the device also includes:
4th acquisition module, the target for obtaining the laser exports energy;
5th acquisition module, the reality output energy for obtaining the laser;
3rd adjusting module, during for the difference in the reality output energy and target output energy beyond predetermined threshold value, root According to the target output energy and reality output energy, adjusted by Predistribution Algorithm and the dominant wavelength that obtains is inquired about in the laser The electric current of laser bar bar, until the reality output energy of the laser is less than or equal to default threshold with the difference of target output energy Value.
A kind of 17. laser control arrangements, it is characterised in that including:
At least one processor;And
The memory being connected with least one processor;Wherein,
The memory storage have can by the instruction repertorie of at least one computing device, the instruction repertorie by it is described extremely A few computing device, so that at least one processor is used for:
Obtain the operating temperature of laser;
Dominant wavelength corresponding with the operating temperature is inquired about in the corresponding relation of dominant wavelength from preset temperature;
Control to inquire about the laser bar bar of the dominant wavelength for obtaining in opening, the institute in addition to the dominant wavelength in the laser There is laser bar bar at least partly in off position.
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