CN103368056A - Multi-wave-length laser switching and outputting device - Google Patents
Multi-wave-length laser switching and outputting device Download PDFInfo
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- CN103368056A CN103368056A CN2013103083514A CN201310308351A CN103368056A CN 103368056 A CN103368056 A CN 103368056A CN 2013103083514 A CN2013103083514 A CN 2013103083514A CN 201310308351 A CN201310308351 A CN 201310308351A CN 103368056 A CN103368056 A CN 103368056A
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Abstract
The invention discloses a multi-wave-length laser switching and outputting device which comprises a fundamental frequency laser source, multiple frequency multiplication devices, multiple electro-optical devices, multiple polarizers and one output window. The fundamental frequency laser source is used for producing fundamental frequency light. The frequency multiplication devices are used for producing multi-frequency multiplication light. The electro-optical devices rotate the polarization direction of the light under the control of voltage. The polarizers are used for performing high reflection on the light in the preset polarization direction and performing high transmission on the light in the direction vertical to the preset polarization direction. The output window is used for outputting the fundamental frequency light or the multi-frequency multiplication light, and one of the fundamental frequency light and the multi-fundamental frequency light can be output by the output window by exerting voltage or not exerting voltage on one or more electro-optical devices. According to the multi-wave-length laser switching and outputting device with the scheme, a nonlinear crystal and a spectroscopic lens do not need to be moved, and various wave lengths can be output along the same output optical path and through the same light outlet hole. In addition, lasers of all wave lengths can be output to the maximum.
Description
Technical field
The present invention relates to the laser technique field, particularly a kind of multiwavelength laser switches output device.
Background technology
Be accompanied by the fast development of laser technology, various lasers have obtained in fields such as industry, scientific research, national defence, medical science, amusements respectively using more and more widely.In these fields, the comprehensive of the function of laser and the convenience that uses there has been higher requirement.Itself have simultaneously or alternately export the laser of multi-wavelength's laser, because it has the multiple application function that the multi-wavelength brings, becoming the object of numerous Institutions Development.
In existing technology, as shown in Figure 1, a kind of traditional laser multi-wavelength way of output comprises basic frequency laser light source 11, two frequency-doubling crystals 121 thereafter and frequency tripling crystal 122, the first spectroscope 131, the second spectroscope 132 and laser absorption body 14, the second spectroscope 132 is placed on the reverberation circuit of the first spectroscope 131, and other parts are placed on the incident light axis of LASER Light Source 11 successively.During work, the fundamental frequency light that basic frequency laser light source 11 sends is through the nonlinear effect of two frequency-doubling crystals 121 and frequency tripling crystal 122, part is converted to two frequency doubled lights and frequency tripling light, again through the light splitting of the first spectroscope 131 and the second spectroscope 132, with the output of frequency tripling light, basic frequency laser and two double-frequency lasers then incide laser absorption body 14 inside.By that analogy, by changing nonlinear crystal and spectroscope, can export respectively fundamental frequency light and two frequency doubled lights.Fundamental frequency light and two, frequency tripling light all can be separately along same output light path, the same light hole outputs of process.
Said apparatus not only needs ceaselessly to change various spectroscopes by mechanical means when carrying out the wavelength switching, requires the mechanical translation device with precision, also needs frequently nonlinear crystal to be moved into and withdraw from light path.For example if the output basic frequency laser need to all be withdrawn from light path with two frequency-doubling crystals and frequency tripling crystal, the spectroscope of changing again for frequency tripling light is the spectroscope for fundamental frequency light; By that analogy, if need output two double-frequency lasers, the frequency tripling crystal need to be withdrawn from light path, changing the frequency tripling spectroscope is two frequency multiplication spectroscopes again.Because generally the frequency translation efficient of nonlinear crystal is responsive to level and luffing angle, so move into and withdraw from the process of light path at crystal, need to have the precision optical machinery device guarantee of very high degree of precision in mobile front and back, the angle of crystal remains unchanged, otherwise the frequency translation efficient after can affecting each crystal and resetting, and the precision optical machinery device of this very high degree of precision is often very expensive and be difficult to guarantee the accuracy stability of long-term work.Moreover, finish so many immigration and withdraw from action, need subsidiary many precision optical machinery devices and control device, greatly increased the cost of laser equipment, reduced the global reliability of equipment.
In the prior art, as shown in Figure 2, another traditional laser multi-wavelength way of output comprises basic frequency laser light source 21, two frequency-doubling crystals 221 thereafter and frequency tripling crystal 2 22, first, second spectroscope 231,232, be placed on successively with upper-part on the incident light axis of LASER Light Source 21, the 3rd spectroscope 233 and the 4th spectroscope 234 are placed on respectively on the reverberation circuit of the first spectroscope 231 and the second spectroscope 232.The high reflection of the 231 pairs of frequency tripling light of the first spectroscope, to fundamental frequency light and the high transmission of two frequency doubled lights; The high reflection of 232 pairs of two frequency doubled lights of the second spectroscope, to the high transmission of fundamental frequency light.The high reflection of 233 pairs of frequency tripling light of the 3rd spectroscope; The high reflection of 234 pairs of two frequency doubled lights of the 4th spectroscope.During work, utilize each spectroscopical light splitting function, export simultaneously fundamental frequency light, two frequency doubled lights and frequency tripling light.Each nonlinear crystal does not need to be moved into frequently and withdraw from light path.But fundamental frequency light, frequency doubled light and frequency tripling light are but along different optical axis output, through three light-emitting windows.Trouble comparatively when this changes out optical wavelength in actual use must be aimed at, the again whole external transmission of adjustment laser and control light path again.Simultaneously, the fundamental frequency that obtains has only experienced the residue laser after two frequencys multiplication and the frequency tripling conversion, two frequency doubled lights that obtain are the residue laser that has experienced after the frequency tripling conversion, power can have significantly reduction than initial condition, reduce the applications of laser scope, be unfavorable for the multifunctional application of laser equipment.
Summary of the invention
The purpose of this invention is to provide a kind of mobile nonlinear crystal and light splitting eyeglass of neither needing, the multi-wavelength can be guaranteed again along same output light path, through same light hole output, and the multiwavelength laser switching output device of each wavelength laser can be exported to greatest extent.
For this reason, the present invention proposes a kind of multiwavelength laser and switch output device, it comprises:
The basic frequency laser source, it is for generation of fundamental frequency light;
A plurality of frequency doubling devices, it is for generation of multiple frequence light;
A plurality of electro-optical devices, it rotates the polarisation of light direction under voltage control;
A plurality of polarizers, it is used for the high reflection of light to the predetermined polarisation direction, to the high transmission of light perpendicular to the predetermined direction polarization; An output window, it is used for output fundamental frequency light or multiple frequence light;
Wherein, by applying voltage or not applying voltage to described wherein one or more electro-optical devices, so that a kind of in output window output fundamental frequency light or the multiple frequence light.
The invention has the beneficial effects as follows provides a kind of mobile nonlinear crystal and light splitting eyeglass of neither needing, the multi-wavelength can be guaranteed again along same output light path, through same light hole output, and the multiwavelength laser switching output device of each wavelength laser can be exported to greatest extent.So that multiple-wavelength laser when practical application, does not need to use the precision optical machinery device with very high degree of precision, greatly reduce manufacture difficulty and cost; Do not need again to aim at, adjustment external transmission control light path, can switch at any time easily, export fully the laser of each wavelength, be used under various operating states and the condition.
Description of drawings
Fig. 1 is the structural representation of a kind of multiwavelength laser way of output in the prior art;
Fig. 2 is the structural representation of the another kind of multiwavelength laser way of output in the prior art;
Fig. 3 is the structural representation that multiwavelength laser of the present invention switches output device.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in further detail.
Fig. 3 shows the multiwavelength laser switching output device structure chart that the present invention proposes.As shown in Figure 3, this multiwavelength laser switching output device comprises:
One basic frequency laser source 31, it is used for obtaining the linear polarization fundamental frequency light of polarization direction along continuous straight runs (be parallel to paper and perpendicular to light), and fundamental light wave is long to be 1064nm;
The first electro-optical device 321, it is used for described linear polarization fundamental frequency light is played the effect of rotatory polarization direction, include electrooptic crystal KDP (potassium dihydrogen phosphate), two logical optical surfaces all are coated with the high transmission rete to 1064nm fundamental frequency light, by the machine exterior drive source by crystal being applied the voltage control (not shown), by applying certain voltage, can make 90 ° of the linear polarization 1064nm fundamental frequency polarisation of light direction rotations of incident;
Carry out the first polarizer 331, the second polarizer 332 and the 3rd polarizer 333 of polarization for described linear polarization fundamental frequency 1064nm light, this three polarizer is to the vertically high reflection of linear polarization 1064nm light of (perpendicular to paper) of polarization direction, to the high transmission of linear polarization 1064nm light of polarization direction along continuous straight runs (be parallel to paper and perpendicular to light);
The first spectroscope 351 is for the high reflection of fundamental frequency 1064nm light;
Two frequency doubling devices 341 for generation of two frequency multiplication 532nm laser, it produces two frequency doubled lights after receiving fundamental frequency light, adopt non-critical type I class phase matched LBO (three lithium borates) crystal, two logical optical surfaces are coated with fundamental frequency 1064nm, the high transmission rete of two frequency multiplication 532nm laser.
For the second electro-optical device 322 that plays the rotatory polarization effect by described two frequency doubling devices, 341 rear remaining linear polarization fundamental frequency light, include electrooptic crystal KDP (potassium dihydrogen phosphate), two logical optical surfaces all are coated with the high transmission rete to fundamental frequency 1064nm laser, by the machine exterior drive source by crystal being applied the voltage control (not shown), by applying certain voltage, can make the polarization direction half-twist that passes through two frequency doubling devices, 341 rear remaining linear polarization fundamental frequency 1064nm laser of incident;
The second spectroscope 352 and the 3rd spectroscope 353, it is for the high reflection of fundamental frequency 1064nm light;
The 4th spectroscope 354 and the 5th spectroscope 355, it is for the high reflection of fundamental frequency 1064nm light; For the high transmission of two frequency multiplication 532nm light;
Frequency tripling device 342 for generation of frequency tripling 355nm laser, it produces frequency tripling light after receiving fundamental frequency light and two frequency doubled lights, it is coated with fundamental frequency 1064nm, two frequency multiplication 532nm, the high transmission rete of frequency tripling 355nm laser with critical type II class phase matched LBO (three lithium borates) crystal, two logical optical surfaces;
The 6th spectroscope 356 is for fundamental frequency 1064nm light and the high reflection of two frequency multiplication 532nm light, to the high transmission of frequency tripling 355nm light;
Play the 3rd electro-optical device 323 of rotatory polarization effect for described two frequency multiplication 532nm light, include electrooptic crystal KDP (potassium dihydrogen phosphate), two logical optical surfaces all are coated with the high transmission rete to two frequency multiplication 532nm laser, by the machine exterior drive source by crystal being applied the voltage control (not shown), by applying certain voltage, can make the polarization direction half-twist of the linear polarization two frequency multiplication 532nm laser of incident;
Carry out the 4th polarizer 334 of polarization for described two frequency multiplication 532nm light, this polarizer is to the vertically high reflection of linear polarization 532nm light of (perpendicular to paper) of polarization direction, to the high transmission of linear polarization two frequency multiplication 532nm light of polarization direction along continuous straight runs (be parallel to paper and perpendicular to light);
The 7th spectroscope 357 is for the high reflection of two frequency multiplication 532nm light, for the high transmission of fundamental frequency 1064nm light;
The 8th spectroscope 358 is for the high reflection of two frequency multiplication 532nm light;
The 9th spectroscope 359 is for the high reflection of two frequency multiplication 532nm light, for fundamental frequency 1064nm light and the high transmission of frequency tripling 355nm light;
The first absorber 361 is used for receiving the fundamental frequency 1064nm light that the 3rd polarizer 333 reflects;
The second absorber 362 is for the fundamental frequency 1064nm light that receives 357 transmissions of the 7th spectroscope;
The 3rd absorber 363 is used for receiving the two frequency multiplication 532nm light that the 4th polarizer 334 reflects; These three absorbers are used for the laser of adsorbing residual, avoid laser to reveal cause danger.
All finally from this diaphragm output, this diaphragm is for fundamental frequency 1064nm, two frequency multiplication 532nm, the high transmission of frequency tripling 355nm laser for diaphragm 37, various wavelength lasers.
In above-mentioned a plurality of device, the first electro-optical device 321, the first polarizer 331, two frequency doubling devices 341, the 4th spectroscope 354, the 5th spectroscope 355, frequency tripling device 342, the 6th spectroscope 356, the 9th spectroscope 359 and diaphragm 37 are placed on the light path of described basic frequency laser source 31 bright dippings successively; The second polarizer 332 is positioned on the reflected light path of described the first polarizer 331; Described the first spectroscope 351 is placed on the reflected light path of described the second polarizer 332, and the reflected light path of the first spectroscope 351 is incident on the 6th spectroscope 356; Described the second spectroscope 352 is placed on the reflected light path of described the 4th spectroscope 354, and the second electro-optical device 322 is positioned on the reflected light path of described the second spectroscope 352; The 3rd polarizer 333 is positioned on the emitting light path of described the second electro-optical device 322; The first absorber 361 is positioned on the reflected light path of described the 3rd polarizer 333; Described the 3rd spectroscope 353 is positioned on the transmitted light path of described the 3rd polarizer 333, and its reflected light path is incident to the 5th spectroscope 355; Described the 6th spectroscope 356 and described the 7th spectroscope 357 are positioned on the reflected light path of the first spectroscope 351 successively; Described the second absorber 362 is positioned on the transmitted light path of described the 7th spectroscope 357; Described the 3rd electro-optical device 323 is positioned on the reflected light path of described the 7th spectroscope 357, and described the 4th polarizer 334 is positioned on the emitting light path of described the 3rd electro-optical device, and described the 3rd absorber 363 is positioned on the reflected light path of described the 4th polarizer 334; Described the 8th spectroscope 358 is positioned on the transmitted light path of the 4th polarizer 334, and its reflected light path is incident on the 9th spectroscope 359.
Adopt device of the present invention, it is as follows to realize that multiwavelength laser switches the method for exporting:
According to the structure in the foregoing, put successively each device, all do not apply voltage on first, second, third electro-optical device 321,322,323, make it not change the polarization direction of linear polarization fundamental frequency 1064nm light and the two frequency multiplication 532nm laser of incident.Open lasing light emitter 31 this moment, then the fundamental frequency 1064nm laser of the polarization direction along continuous straight runs of its emission (be parallel to paper and perpendicular to light) enters two frequency doubling devices 341 by the 331 rear transmissions of the first polarizer, obtains the vertically two frequency multiplication 532nm laser of (perpendicular to paper) of polarization direction.This moment, remaining fundamental frequency 1064nm light was by the 4th spectroscope 354, after the 352 high reflections of the second spectroscope, through behind the second electro-optical device 322 by the 333 high transmissions of the 3rd polarizer, again via entering frequency tripling device 342 after the 3rd spectroscope 353 and the 355 high reflections of the 5th spectroscope, and two frequency multiplication 532nm laser also enter frequency tripling device 342 after by the 4th spectroscope 354 and the 355 high transmissions of the 5th spectroscope, fundamental frequency 1064nm light and two frequency multiplication 532nm light produce frequency tripling 355nm light in frequency tripling device 342, via the 6th spectroscope 356, after the 359 high transmissions of the 9th spectroscope, by diaphragm 37 outgoing, and by frequency tripling device 342 rear remaining fundamental frequency 1064nm light, via the 356 high reflections of the 6th spectroscope, the 357 high transmissions of the 7th spectroscope enter the second absorber 362, after remaining two frequency multiplication 532nm light reflect via the 6th spectroscope 356 and the 7th spectroscope 357 height, through being entered the 3rd absorber 363 by the high reflection of the 4th polarizer 334 behind the 3rd electro-optical device 323, so be simple frequency tripling 355nm light from diaphragm 37 outputs finally.
Pass through external drive source, apply voltage at the second electro-optical device 322, make its fundamental frequency 1064nm laser polarization direction half-twist that will pass through become vertically (perpendicular to paper), apply voltage at the 3rd electro-optical device 323, the two frequency multiplication 532nm laser polarization direction half-twists that will pass through become along continuous straight runs (be parallel to paper and perpendicular to light), enter first absorber 361 by the high reflection of the 3rd polarizer 333 by two frequency doubling devices, 341 rear remaining fundamental frequency 1064nm light after through the second electro-optical device 322 this moment, the two frequency multiplication 532nm light that produce or not frequency translation through frequency tripling device 342 separately, after high transmission is passed through, after the 6th spectroscope 356 and the 357 high reflections of the 7th spectroscope, through after the 3rd electro-optical device 323 rotatory polarization directions by the 334 high transmissions of the 4th polarizer, via after the 8th spectroscope 358 and the high reflection of the 9th spectroscope 359 by diaphragm 37 outgoing, are two simple frequency multiplication 532nm light from diaphragm 37 outputs finally.
Drive source by the laser outside, apply voltage at the first electro-optical device 321, make its fundamental frequency 1064nm laser polarization direction half-twist that will pass through become vertically (perpendicular to paper), then the fundamental frequency 1064nm laser of its emission is by the 331 high reflections of the first polarizer, by the second polarizer 332, the first spectroscope 351, the 356 high reflections of the 6th spectroscope and by after the 359 high transmissions of the 9th spectroscope, via window 37 outputs, thereby device obtains simple fundamental frequency 1064nm Laser output thus;
Light is 45 ° for the incidence angle of described the first spectroscope 351, the second spectroscope 352, the 3rd spectroscope 353, the 4th spectroscope 354, the 5th spectroscope 355, the 6th spectroscope 356, the 7th spectroscope 357, the 8th spectroscope 358, the 9th spectroscope 359 minute surfaces, and the high transmission that is coated with on each spectroscope minute surface, highly reflecting films layer are all take 45 ° of angles of incidence of light as precondition.
More than can be easily between three kinds of working methods in real time the drive source by control laser outside carry out switching between the wavelength, do not need mobile any nonlinear crystal and light splitting eyeglass, the multi-wavelength can be guaranteed again along same output light path, through same light hole output, and each wavelength laser can be exported to greatest extent.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; be understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multiwavelength laser switches output device, and it comprises:
The basic frequency laser source, it is for generation of fundamental frequency light;
A plurality of frequency doubling devices, it is for generation of multiple frequence light;
A plurality of electro-optical devices, it rotates the polarisation of light direction under voltage control;
A plurality of polarizers, it is used for the high reflection of light to the predetermined polarisation direction, to the high transmission of light perpendicular to the predetermined direction polarization; An output window, it is used for output fundamental frequency light or multiple frequence light;
Wherein, by applying voltage or not applying voltage to described wherein one or more electro-optical devices, so that a kind of in output window output fundamental frequency light or the multiple frequence light.
2. multiwavelength laser as claimed in claim 1 switches output device, it is characterized in that, described frequency doubling device comprises the frequency doubling device that produces two frequency doubled lights and frequency tripling light.
3. multiwavelength laser as claimed in claim 1 switches output device, it is characterized in that, also comprises a plurality of spectroscopes, is used for fundamental frequency light or the high reflection of multiple frequence light or high transmission.
4. multiwavelength laser as claimed in claim 1 switches output device, it is characterized in that, described a plurality of polarizers are used for to the high reflection of polarization direction light vertically, to the high transmission of light of polarization direction along continuous straight runs.
5. multiwavelength laser as claimed in claim 3 switches output device, it is characterized in that, described a plurality of electro-optical device, a plurality of polarizer, a plurality of spectroscope and a plurality of frequency doubling device are placed on the output light path in basic frequency laser source according to the certain way combination, to switch one of output fundamental frequency light and multiple frequence light.
6. multiwavelength laser as claimed in claim 1 switches output device, it is characterized in that, multiwavelength laser switches output device and is used for output fundamental frequency light, two frequency doubled lights and frequency tripling light, and a plurality of electro-optical device comprises the first electro-optical device, the second electro-optical device and the 3rd electro-optical device.
7. multiwavelength laser as claimed in claim 6 switches output device, it is characterized in that, described multiwavelength laser switches output device and is used for the output fundamental frequency light time, and described the first electro-optical device applies voltage, and the second electro-optical device and the 3rd electro-optical device do not apply voltage; Described multiwavelength laser switches output device and is used for output two frequency doubled lights, and wherein the first electro-optical device does not apply voltage, and the second electro-optical device and the 3rd electro-optical device apply voltage; Described multiwavelength laser switches output device and is used for the output frequency tripling light time, and three electro-optical devices all do not apply voltage.
8. multiwavelength laser as claimed in claim 1 switches output device, it is characterized in that, also comprises three absorbers, and it is respectively applied to absorb unnecessary fundamental frequency light or multiple frequence light in output fundamental frequency light or multiple frequence light time.
9. multiwavelength laser as claimed in claim 5 switches output device, it is characterized in that described certain compound mode is specially:
The first electro-optical device, the first polarizer, two frequency doubling devices, the 4th spectroscope, the 5th spectroscope, frequency tripling device, the 6th spectroscope, the 9th spectroscope and diaphragm are placed on the light path of described basic frequency laser source bright dipping successively; The second polarizer is positioned on the reflected light path of described the first polarizer; Described the first spectroscope is placed on the reflected light path of described the second polarizer, and first spectroscopical reflected light path is incident on the 6th spectroscope; Described the second spectroscope is placed on the described the 4th spectroscopical reflected light path, and the second electro-optical device is positioned on described second spectroscopical reflected light path; The 3rd polarizer is positioned on the emitting light path of described the second electro-optical device; The first absorber is positioned on the reflected light path of described the 3rd polarizer; Described the 3rd spectroscope is positioned on the transmitted light path of described the 3rd polarizer, and its reflected light path is incident to the 5th spectroscope; Described the 6th spectroscope and the 7th spectroscope are positioned on first spectroscopical reflected light path successively; Described the second absorber is positioned on the described the 7th spectroscopical transmitted light path; Described the 3rd electro-optical device is positioned on the described the 7th spectroscopical reflected light path, and described the 4th polarizer is positioned on the emitting light path of described the 3rd electro-optical device, and described the 3rd absorber is positioned on the reflected light path of described the 4th polarizer; Described the 8th spectroscope is positioned on the transmitted light path of the 4th polarizer, and its reflected light path is incident on the 9th spectroscope, and the 9th spectroscope is positioned on described first spectroscopical reflected light path.
10. a multiwavelength laser switches output intent, and it comprises:
Step 1, output fundamental frequency light time, apply voltage for the first electro-optical device; The fundamental frequency light that the fundamental frequency light source produces is incident to the first electro-optical device, the first electro-optical device rotates described fundamental frequency polarisation of light direction, after the postrotational fundamental frequency light in polarization direction is by the first polarizer and the high reflection of the second polarizer, be incident to the first spectroscope, described fundamental frequency light, is exported from output window again after the 9th spectroscope transmission by the reflection of the first spectroscope and the 6th spectroscope;
When step 2, output two frequency doubled light, the first electro-optical device does not apply voltage, and second, third electro-optical device applies voltage; The fundamental frequency light that the fundamental frequency light source produces is exported through the first electro-optical device, the fundamental frequency light of output enters two frequency doubling devices after the first polarizer transmission, and export two frequency doubled lights, two frequency doubled lights enter the frequency tripling device through the 4th spectroscope and the 5th spectroscope, after the 4th spectroscope and the reflection of the second spectroscope, enter the second electro-optical device through the remaining fundamental frequency light of two frequency doubling devices simultaneously, the second electro-optical device rotates its polarization direction, and postrotational fundamental frequency light is entered the first absorbent body by the reflection of the 3rd polarizer through the polarization direction; Two frequency doubled lights that enter separately the frequency tripling device do not produce frequency inverted and directly export, after the 6th spectroscope and the reflection of the 7th spectroscope, again after the 3rd electro-optical device rotatory polarization direction by the high transmission of the 4th polarizer, again after the reflection of the 8th spectroscope and the 9th spectroscope by the output window outgoing;
Step 3, output frequency tripling light time, described three electro-optical devices all do not apply voltage; The fundamental frequency light that the fundamental frequency light source produces is exported through the first electro-optical device, the fundamental frequency light of output enters two frequency doubling devices after the first polarizer transmission, and export two frequency doubled lights, two frequency doubled lights enter the frequency tripling device through the 4th spectroscope and the 5th spectroscope, after the 4th spectroscope and the reflection of the second spectroscope, enter the second electro-optical device through the remaining fundamental frequency light of two frequency doubling devices simultaneously, enter the frequency tripling device through the 3rd polarizer transmission by the 3rd spectroscope and the reflection of the 5th spectroscope again, the frequency tripling device produces frequency tripling light based on the fundamental frequency light that enters it and two frequency doubled lights, and exports by output window through the 6th spectroscope and the 9th spectroscope transmission; Pass through simultaneously remaining fundamental frequency light behind the frequency tripling device, via entering the second absorbent body after the reflection of the 6th spectroscope, the 7th spectroscope transmission, remaining two frequency doubled lights are entered the 3rd absorbent body by the reflection of the 4th polarizer after reflecting via the 6th spectroscope and the 7th spectroscope behind the 3rd electro-optical device.
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| CN104218442A (en) * | 2014-09-29 | 2014-12-17 | 广州安特激光技术有限公司 | 1064nm and 532nm wavelength free switching output laser based on polarization compensator |
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| CN109412006A (en) * | 2018-12-22 | 2019-03-01 | 苏州英谷激光有限公司 | It is able to achieve the outer Wavelength converter of chamber of output wavelength switching |
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