CN102280807A - Medical multi-wavelength laser - Google Patents
Medical multi-wavelength laser Download PDFInfo
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- CN102280807A CN102280807A CN2011101952817A CN201110195281A CN102280807A CN 102280807 A CN102280807 A CN 102280807A CN 2011101952817 A CN2011101952817 A CN 2011101952817A CN 201110195281 A CN201110195281 A CN 201110195281A CN 102280807 A CN102280807 A CN 102280807A
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Abstract
The invention discloses a medical multi-wavelength laser. In one case, the mode of generating multiple wavelengths is that fundamental frequency light passes through a modulator to generate laser light with a required wavelength, and a selective reflector and a total reflector are adopted to generate a resonant cavity; and the structure is compact. The medical multi-wavelength laser also has a multifarious selection that simple frequency multiplication is combined with the matching of the selective reflector and the total reflector to expand output wavelengths, and the output wavelengths are easy to expand. The selection and adjustment of multiple wavelengths relay on a liquid-light switch and an optical shutter, the adjustment is convenient, and the work is safe and reliable. In another case, the medical multi-wavelength laser comprises a second total reflector of a first output wavelength laser which is tilted at 45 degrees on a projection light path of a second selective reflector. Through structure integration, the medical multi-wavelength laser facilitates multi-directional adjustment and acquisition, and the structure tends to be compact.
Description
Technical field
The invention belongs to the medical laser equipment technical field, especially relate to side pumping full solid-state multiple-wavelength laser technical field.
Background technology
The energy of laser is high concentration on time, space, spectrum, makes it obtain extensive use in various fields.Wherein, medical science be applicating laser technology the earliest, a most extensive and most active subject.Countries in the world have been developed the laser medical equipment of the different therapeutical uses of many kinds, and are used for clinical treatment.
The early stage application of laser in clinical medicine, because the laser kind is few, selectable leeway is little, often be to use a kind of laser of wavelength to carry out whole operation techniques, the whole surgery process that helps through that is aided with conventional apparatus in addition again, the special requirement of each process of operation can not be satisfied, optimum result of treatment can not be obtained.Along with the fast development of laser technology, the laser of various wavelength is come out one after another, and has covered each wave band commonly used such as visible light, ultraviolet light, infrared light substantially.What modern medicine was clinical facts have proved, different indication treatments needs the laser of different optimal wavelengths, different phase in complete surgical procedure also needs different wave length and laser of different nature to handle, therefore multiwavelength laser could satisfy the needs of Modern Laser Medicine clinical treatment, realize safety, effectively, the target of reliable, modern medicine pursuit such as wound is little, misery is little, rehabilitation is fast.
For the needs people that further satisfy clinical operation begin multiple-wavelength laser is further studied, the method that obtains multiple-wavelength laser at present has:
1 utilizes Diode-Q-YLF double-frequency laser 532nm pumping titanium precious stone laser chamber, output laser is separated 532nm green glow and 830nm infrared light by half-reflecting half mirror, 830nm light focuses to frequency-doubling crystal LBO, the frequency doubled light that produces after filtration and leveling the 415nm blue light is focused to frequency-doubling crystal BBO, the light of quadruple to Amici prism, is exported 415nm blue light and 208nm ultraviolet light by the collimation back respectively.The main points of this method are all solid state double-frequency laser pumping titanium jewels, realize multiwavelength laser output with the light parametric approach, its complex structure and the output laser power belongs to watt level or the milliwatt level laser is not high at clinical value.
2 use a laser to realize the running of three kinds of fundamental frequency wavelength simultaneously, and realize that by the mode of inside and outside of cavity while frequency multiplication 660nm is red, 532nm is green, the output of blue tricolor laser on same laser simultaneously.This kind method is to adopt the pumped at end face of semiconductor crystal, and obtains the small-power frequency doubled light at the inside and outside of cavity corresponding frequency-doubling crystal of placement.Because the limitation of end pumping, this method are difficult to obtain powerful laser output, clinical practice is subjected to significant limitation.
3 adopt " ten " font composite resonant cavity configuration, provide 1064 nm and 1319 nm fundamental frequency light with two blocks of Nd3+:YAG laser crystals respectively as operation material, combine with the acousto-optic Q modulation technology by the nonlinear optical crystal frequency technology, on three different directions, export 532 nm green glows, 589 nm gold-tinteds and 660 nm ruddiness multiwavelength laser simultaneously.This kind method utilizes two blocks of laser crystals as operation material, and also for the cooling of laser crystal has brought a new difficult problem, its actual application value is not high when making laser structure become complicated.
4 adopt five blocks of laser crystals to realize a plurality of fundamental frequency light outputs, in a crystal bar, export the dual-wavelength laser of the laser generation of 1.0 micron wavebands and two kinds of fundamental frequency light of 1.3 micron wavebands simultaneously, acousto-optic modulator is arranged, to 1.0 microns and 1.3 microns modulation simultaneously in the chamber.This kind method is that the resonator mirror of laser adopts two fens mirror structures, is being divided into two halves with a slice speculum or output coupling mirror face, plates the deielectric-coating that different transmitances and reflectivity distribute separately, realizes the laser generation of two kinds of wavelength.Two kinds of optical maser wavelengths that this kind method obtains have adopted five crystal, and its structure is quite complicated, makes difficulty, is difficult in actual applications be applied.
Utilize laser, the semiconductor laser of argon laser, dye laser or krypton lamp pumping directly to launch in addition in addition, the methods such as pulsed solid stale laser of adjustable cascade frequency-doubling crystal obtain multiwavelength laser, mostly be that low-power applications is in military affairs, fields such as detection do not obtain practical application in medical treatment.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of multiple-wavelength laser that can satisfy medical applications, compact conformation, good reliability and easy and simple to handle.
An aspect according to example of the present invention:
This invents a kind of medical multiple-wavelength laser, comprises the side pumping full solid-state laser module that is used to produce fundamental frequency light, it is characterized in that it also comprises:
Liquid optical switch is positioned on the first sidelight road of described side pumping full solid-state laser module, and to control the exit direction of the first output wavelength laser, this exit direction contains first exit direction and second exit direction;
Optical gate is positioned on the input path of described liquid optical switch;
The first output wavelength laser part speculum is positioned at and perpendicular on described first exit direction;
The first output wavelength laser modulator is positioned at second exit direction;
The first output wavelength laser, first completely reflecting mirror is positioned on the described first output wavelength laser modulator exit direction and vertically reflects corresponding emergent light;
First selects speculum, tilting on the second sidelight road of described side pumping full solid-state laser module, with the total reflection first output wavelength laser, forms first reflected light path, and the full impregnated second output wavelength laser;
The second output wavelength laser modulator is positioned on the second sidelight road of described side pumping full solid-state laser module, selects the projection light of speculum to modulate to first;
Second selects speculum, be positioned at and the first sidelight road of vertical described side pumping full solid-state laser module on, with the full impregnated first output wavelength laser and the second output wavelength laser that is all-trans;
First auxiliary mirror, be positioned at and vertical described first reflected light path on, form the first output wavelength laserresonator with side pumping full solid-state laser module, the described first output wavelength laser part speculum; And
The second output wavelength laser part speculum is positioned at the also second output wavelength laser of vertical incidence, and selects speculum to form resonant cavity with described survey face pumping all-solid state laser module, described second.
According to the present invention, the mode that produces multi-wavelength produces the laser of required wavelength by fundamental frequency light by modulator, and adopts selective reflecting mirror and completely reflecting mirror to produce resonant cavity, compact conformation.Can also select expansion easily in conjunction with the diversity of the cooperation expansion output wavelength of above-mentioned selective reflecting mirror and completely reflecting mirror by simple frequency multiplication.Selection and adjustment about multi-wavelength then depend on liquid optical switch and optical gate, and be easy to adjust, safe and reliable.
According to above-mentioned medical multiple-wavelength laser, also comprise the frequency multiplier that is arranged on the described first output wavelength laser and/or the second output wavelength light path;
The frequency multiplier of the corresponding first output wavelength laser is designated as the 3rd output wavelength laser frequency multiplier, mated ground, described first auxiliary mirror is positioned at and the vertical exit direction of the 3rd output wavelength laser frequency multiplier, and this first auxiliary mirror still is the full impregnated mirror of the 3rd output wavelength laser, simultaneously, vertically be provided with in the incident direction of the 3rd output wavelength laser frequency multiplier the 3rd output wavelength laser is all-trans and the 3rd of the first ripple output wavelength laser full impregnated is selected speculum;
The frequency multiplier of the corresponding second output wavelength laser is designated as the 4th output wavelength laser frequency multiplier, mated ground, the 4th output wavelength laser frequency multiplier is arranged on the emitting light path of the described second output wavelength laser modulator, and the described second output wavelength laser part speculum also is the full impregnated mirror of the 4th output wavelength laser; And behind this second output wavelength laser part speculum, be provided with spectroscope, with the second output wavelength laser and the 4th output wavelength laser that obtains different exit directions.Thereby, can produce the more medical laser of multi-wavelength, by the simple superposition of frequency multiplication equipment, entity structure increases few, and structure is also very compact.
According to above-mentioned medical multiple-wavelength laser, another aspect of the present invention also comprises the tilting first output wavelength laser, second completely reflecting mirror of 45 degree on the projecting light path that is positioned at the described second selection speculum.Integrate by structure, the adjustment and the acquisition of convenient a plurality of directions, structure more becomes with compact.
According to above-mentioned medical multiple-wavelength laser, those skilled in the art can also select or make up following preferable technological means:
The pumping source of described side pumping full solid-state laser module is the diode laser matrix according to triangular arranged, employing side-pumping mode pumping laser medium, the laser diode wavelength is 808nm, laser medium is Nd:YAG, the plane is worn at two ends, be coated with the anti-reflection film of fundamental frequency light, and be furnished with the cooling system that diode laser matrix and laser medium are cooled off.
Above-mentioned medical multiple-wavelength laser, when having the 3rd output wavelength laser frequency multiplier, the employing water cooling of the 3rd output wavelength laser frequency multiplier gets the crystal two ends and is coated with the first output wavelength laser and the 3rd output wavelength laser anti-reflection film, and the coupling angle is respectively
Above-mentioned medical multiple-wavelength laser, the crystal of described the 3rd output wavelength laser frequency multiplier are KTP or lbo crystal.
Above-mentioned medical multiple-wavelength laser, when having the 4th output wavelength laser frequency multiplier, the water-cooled crystal of the employing of the 4th output wavelength laser frequency multiplier two ends are coated with the second output wavelength laser and the 4th output wavelength laser anti-reflection film, and the coupling angle is respectively
Above-mentioned medical multiple-wavelength laser, the crystal of described the 4th output wavelength laser frequency multiplier are ktp crystal.
Above-mentioned medical multiple-wavelength laser, the described first output wavelength Wavelength of Laser is 1064nm, and the second output wavelength Wavelength of Laser is 1320nm, and the 3rd output wavelength Wavelength of Laser is 532nm, and the 4th output wavelength Wavelength of Laser is 660nm.
Above-mentioned medical multiple-wavelength laser is coated with the 1064nm film that is all-trans on the described first output wavelength laser, first completely reflecting mirror, reflectivity is greater than 95%;
Be coated with 1064nm partial reflection film on the described first output wavelength laser part speculum, reflectivity greater than 10% less than 30%;
The described first output wavelength laser, second completely reflecting mirror is coated with 45 ° of incident 1064nm total reflection films, and reflectivity is greater than 95%;
Described second selects speculum to form resonant cavity is coated with 1320nm be all-trans film and 1064nm anti-reflection film, and the 1320nm reflectivity is greater than 95%, and the 1064nm transmitance is greater than 95%;
Described first selects to be coated with on the speculum 45 ° of incident 1064nm be all-trans film and 1320nm anti-reflection film, and the 1064nm reflectivity is greater than 95%, and the 1320nm transmitance is greater than 95%;
The described the 3rd selects speculum to be coated with 1064nm anti-reflection film and the 532nm film that is all-trans, and the 532nm reflectivity is greater than 95%, and the 1064nm transmitance is greater than 95%;
Be coated with 1064nm be all-trans film and 532nm anti-reflection film on described first auxiliary mirror; The 1064nm reflectivity is greater than 95%, and the 532nm transmitance is greater than 95%;
The described second output wavelength laser part speculum is coated with 660nm anti-reflection film and 1320nm partial reflection film, the 1320nm reflectivity greater than 5% less than 20%; The 660nm transmitance is greater than 95%;
Described spectroscope is coated with 45 ° of incident 660nm be all-trans film and 1320nm anti-reflection film.The 660nm reflectivity is greater than 95%, and the 1320nm transmitance is greater than 95%;
The described second output wavelength laser modulator is coated with the 1320nm anti-reflection film;
The described second output wavelength laser modulator is coated with the 1064nm anti-reflection film.
Description of drawings
Below in conjunction with Figure of description technical scheme of the present invention is further described, makes those skilled in the art better understand the present invention, wherein:
Fig. 1 is according to a kind of medical high power multiple wave length laser overall structure figure of the present invention;
Fig. 2 is that a kind of 1064nm wavelength laser produces structure chart;
Fig. 3 is that a kind of 532nm wavelength laser produces structure chart;
Fig. 4 is that a kind of 1320nm and 660nm wavelength laser produce structure chart;
Among the figure:
A-532nm laser frequency multiplier;
B-660nm laser frequency multiplier;
C-1320nm acousto-optic modulator;
D-1064nm acousto-optic modulator;
L-optical gate;
P-liquid optical switch;
Q-semiconductor side pumped Nd:YAG laser module;
M1-1064nm total reflective mirror;
M2-1064nm partially reflecting mirror
M3-45 ° of incident 1064nm total reflective mirror;
M4-1320nm 1064nm full impregnated mirror that is all-trans;
M5-45 ° of incident 1064nm 1320nm full impregnated mirror that is all-trans
M6-1064nm full impregnated 532nm total reflective mirror
M7-1064nm 532nm full impregnated mirror that is all-trans
M8-1320nm partial reflection 660nm full impregnated mirror
M9-45 ° of incident 1320nm full impregnated 660nm full impregnated mirror.
Embodiment
With reference to Figure of description 1, it shows a kind of medical multiple-wavelength laser, and it comprises semiconductor side pumped Nd:YAG laser module, completely reflecting mirror, partially reflecting mirror, 45 ° of speculums, spectroscope, laser frequency multiplier, acousto-optic modulator, liquid optical switch and optical gates compositions.Its basic characteristics are: when liquid optical switch P and optical gate L unlatching, semiconductor pumped Nd:YAG laser module Q and 1064nm are all-trans and 532nm full impregnated mirror M7,45 ° of incidence reflection 1064nm total reflective mirror M3 and 1064nm partially reflecting mirror M2 form 1064nm " Z " type laserresonator, export 1064nm laser from 1064nm partially reflecting mirror M2; When liquid optical switch P closes optical gate L unlatching, semiconductor side pumped Nd:YAG laser module Q, 1064nm total reflective mirror M1,1064nm acousto-optic modulator d, 45 ° of incident 1064nm total reflective mirror M3,45 ° of incident 1064nm 1320nm full impregnated mirror M5,1064nm full impregnated 532nm total reflective mirror M6,532nm laser frequency multiplier a and the 1064nm 532nm full impregnated mirror M7 that is all-trans that is all-trans forms refrative cavity, and intracavity frequency doubling is from the 1064nm 532nm full impregnated JingM7Chu output 532nm laser that is all-trans; When optical gate L closes, be all-trans 1064nm full impregnated mirror M4,1320nm acousto-optic modulator c, 660nm laser frequency multiplier b, 1320nm partial reflection 660nm full impregnated mirror M8 of semiconductor side pumped Nd:YAG laser module Q and 1320nm forms 1320nm laserresonator and intracavity frequency doubling 660nm laserresonator, from 1320nm partial reflection 660nm full impregnated JingM8Chu output 1320nm laser and 660nm laser, mixed light beam is exported 660nm laser and 1320nm laser respectively after by 45 ° of incident 1320nm full impregnated 660nm full impregnated mirror M9.
About liquid optical switch P, it is open that one of selection scheme sees Chinese CN101713899A application for a patent for invention, date of publication on May 26th, 2010, disclosed liquid optical switch basic structure comprises first right-angle prism and second right-angle prism for it, the inclined-plane of described first right-angle prism and second right-angle prism is oppositely arranged, and be fixedly connected into the right-angle prism assembly by intercell connector, between the inclined-plane of described first right-angle prism and second right-angle prism, be formed with by feeding first medium or second medium and make the light that enters described right-angle prism assembly change the medium channel of exit direction.This structure is by forming medium channel between first right-angle prism and second right-angle prism, and in medium channel, feed different media, to change the exit direction of incident light, realization is to the control of light exit direction, and then by with the corresponding position of light hole frequency-doubling crystal being set in the liquid optical switch outside, realized controlled output to fundamental frequency light and frequency doubled light, and can make full use of the fundamental frequency light energy, improved the power output of fundamental frequency light and frequency doubled light, and have simple in structure light and handy, advantage easy to use, that cost is low.The coupling embodiments of the invention are disclosed in efficient height in the acquisition of 1064nm and 532nm wavelength laser, compact conformation in conjunction with above-mentioned CN101713899A patent of invention.
Be all-trans 532nm full impregnated mirror M7 and 1064nm partially reflecting mirror M2 of semiconductor side pumped Nd:YAG laser module Q and 1064nm forms the 1064nm laserresonator to export 1064nm laser from 1064nm partially reflecting mirror M2 shown in Figure 2.This moment, liquid optical switch P and optical gate L were in opening.Wherein M7 goes up plating 1064nm be all-trans film and 532nm anti-reflection film; The last plating of M2 1064nm partial reflection film, reflectivity greater than 10% less than 30%.
Semiconductor side pumped Nd:YAG laser module Q and 1064nm total reflective mirror M1,1064nm acousto-optic modulator d, 45 ° of incident 1064nm total reflective mirror M3,45 ° of incident 1064nm 1320nm full impregnated mirror M5,1064nm full impregnated 532nm total reflective mirror M6,532nm laser frequency multiplier, the 1064nm 532nm full impregnated mirror M7 that is all-trans that is all-trans forms intracavity frequency doubling 532nm laserresonator, is all-trans 532nm full impregnated JingM7Chu output 532nm laser as shown in Figure 3 from 1064nm.Liquid optical switch P was in the closed condition barrier gate and was in opening this moment, and wherein M1 goes up be all-trans film, acousto-optic modulator d of plating 1064nm and goes up be all-trans film and 1320nm anti-reflection film, M6 of plating 1064nm anti-reflection film, M3 plating 45 ° of incident 1064nm total reflection films, 45 ° of incident 1064nm of the last plating of M5 and plate 1064nm anti-reflection film and the 532nm film that is all-trans.
Close optical gate L, be all-trans 1064nm full impregnated mirror M4,1320nm acousto-optic modulator c, 1320nm partial reflection 660nm full impregnated mirror M8,660nm frequency multiplier of semiconductor side pumped Nd:YAG laser module Q and 1320nm forms the 1320nm laserresonator, and the 660nm laserresonator.Wherein be all-trans 1064nm full impregnated mirror M4 and 1320nm partial reflection 660nm full impregnated mirror M8 of 1320nm forms the 1320nm resonant cavity, exports 1320nm laser from M8; There is part 1320nm laser freuqency doubling generation 660nm laser to export after in the 1320nm resonant cavity, adding acousto-optic modulator and 660nm frequency multiplier from M8, be made up of 1320nm and 660nm two kind laser from the laser of M8 output this moment, light beam is by 1320nm after the 45 ° of incident 1320nm full impregnated 660nm full impregnated mirror M9 beam splitting of front and level and the vertical output respectively of 660nm laser, and is shown in Figure 4.Be all-trans film and 1064nm anti-reflection film of M4 plating 1320 wherein; 1320nm acousto-optic modulator c plating 1320nm anti-reflection film; M8 plating 660nm anti-reflection film and 1320nm partial reflection film, reflectivity greater than 5% less than 20%; 45 ° of incident 660nm of M9 plating be all-trans film and 1320nm anti-reflection film.
Design and special plated film design according to said structure realize the powerful laser output of multi-wavelength, can satisfy the needs of Wicresoft's interventional therapy overall process to greatest extent, on a platform, realize vaporizing, cut, solidify, melt, multiple treatment functions such as hemostasis, deactivation, welding, punching, light power different wave length laser.
Four kinds of incorporate medical high power multiple wave length laser application of optical maser wavelength have great importance in clinical, can give full play to laser and organize mutual light selectively acting, realization to the vaporization of lesion tissue, cut, solidify, hemostasis, optical dynamic therapy etc., and the treatment degree of depth can be controlled.
Advantages such as this device has that output wavelength is many, efficient is high, compact conformation, operating cost are low, easy to adjust, work safety.
Just can not realize the switching of optical maser wavelength in the system, thereby make system possess high reliability and mechanical stability that simple to operate, integrated level height, cost are low by the mobile optical element.
More specifically example be for a kind of should be 808nm with the middle semiconductor laser pumping wavelength of multiple-wavelength laser, adopt three annular pumping Nd:YAG crystal, crystalline size is
* 110mm, M7 plates R〉99.9%1064nm﹠T〉99.8532nm; The transmitance of M2 is T=25%1064nm, and M2 and M7 form laserresonator output 1064nm laser when liquid optical switch P unlatching and optical gate L unlatching.
M1 plates R〉the 99.9%1064nm﹠532nm reflectance coating; 1064nm modulator d is the double end acousto-optic modulator, its turn-off capacity is greater than 100W, and repetition rate is that 1KHz is adjustable to 30KHz, and pulsewidth is less than 200ns, acousto-optic modulator plating 1064nm anti-reflection film, M3 and M5 plating R〉99.9%1064nm wherein M5 plate 45 ° of anti-reflection film T simultaneously 99.8%1320nm; M6 plates R〉99.9%532nm﹠T〉99.81064nm; Laser frequency multiplier is KTP, and it is of a size of 6mm * 6mm * 8mm, and the coupling angle is
Open optical gate L, close liquid optical switch P, mirror M 1, M3, M5, M7 and harmonic wave mirror M6, acousto-optic modulator d, 532nm laser frequency multiplier KTP and laser module Q form intracavity frequency doubling 532nm; Green laser is from the green laser of M7 output 532nm.
The last plating of M4 R〉99.9%1320nm﹠amp; T〉the high anti-and anti-reflection film of 99.8%1064nm, 1320nm acousto-optic modulator c adopts the single head acousto-optic modulator, and turn-off capacity is 1KHz to adjustable between the 30KHz, pulsewidth smaller or equal to 200ns greater than 50W, repetition rate, window plating 1320nm anti-reflection film; 660nm laser frequency multiplier b is a ktp crystal, is of a size of 6mm * 6mm * 4mm, and the coupling angle is
M8 plates T=10%1320nm﹠amp; T〉99.9nm660nm; M4 and M8 and laser module Q form the 1320nm laserresonator from M8 output 1320nm laser, and the part 1320nm laser in the 1320nm resonant cavity is exported 660nm ruddiness from M8 behind laser modulator c and laser frequency multiplier b simultaneously.
After testing: when semiconductor laser pumping power is 600W, liquid optical switch P and optical gate L are in opening, this is from eyeglass M2 output 212W1064nm laser; Liquid optical switch is in closed condition optical gate L is in opening, when the modulating frequency of acousto-optic modulator d was 15KHz, from the green laser of eyeglass M7 output 120W532nm, shg efficiency was 58%; When optical gate is transferred to off state, obtain the 1320nm laser output of 90W, obtain the 660nm ruddiness output of 18W from the upright position of spectroscope M9 from the horizontal level of spectroscope M9.Laser output power all can satisfy the medical applications needs in the whole system, and the needs that the user can also be different are selected different wavelength and different power.
Claims (10)
1. a medical multiple-wavelength laser comprises the side pumping full solid-state laser module that is used to produce fundamental frequency light, it is characterized in that it also comprises:
Liquid optical switch (P) is positioned on the first sidelight road of described side pumping full solid-state laser module, and to control the exit direction of the first output wavelength laser, this exit direction contains first exit direction and second exit direction;
Optical gate (L) is positioned on the input path of described liquid optical switch (P);
The first output wavelength laser part speculum is positioned at and perpendicular on described first exit direction;
The first output wavelength laser modulator is positioned at second exit direction;
The first output wavelength laser, first completely reflecting mirror is positioned on the described first output wavelength laser modulator exit direction and vertically reflects corresponding emergent light;
First selects speculum, tilting on the second sidelight road of described side pumping full solid-state laser module, with the total reflection first output wavelength laser, forms first reflected light path, and the full impregnated second output wavelength laser;
The second output wavelength laser modulator is positioned on the second sidelight road of described side pumping full solid-state laser module, selects the projection light of speculum to modulate to first;
Second selects speculum, be positioned at and the first sidelight road of vertical described side pumping full solid-state laser module on, with the full impregnated first output wavelength laser and the second output wavelength laser that is all-trans;
First auxiliary mirror, be positioned at and vertical described first reflected light path on, form the first output wavelength laserresonator with side pumping full solid-state laser module, the described first output wavelength laser part speculum; And
The second output wavelength laser part speculum is positioned at the also second output wavelength laser of vertical incidence, and selects speculum to form resonant cavity with described survey face pumping all-solid state laser module, described second.
2. medical multiple-wavelength laser according to claim 1 is characterized in that: also comprise the frequency multiplier that is arranged on the described first output wavelength laser and/or the second output wavelength light path;
The frequency multiplier of the corresponding first output wavelength laser is designated as the 3rd output wavelength laser frequency multiplier, mated ground, described first auxiliary mirror is positioned at and the vertical exit direction of the 3rd output wavelength laser frequency multiplier, and this first auxiliary mirror still is the full impregnated mirror of the 3rd output wavelength laser, simultaneously, vertically be provided with in the incident direction of the 3rd output wavelength laser frequency multiplier the 3rd output wavelength laser is all-trans and the 3rd of the first ripple output wavelength laser full impregnated is selected speculum;
The frequency multiplier of the corresponding second output wavelength laser is designated as the 4th output wavelength laser frequency multiplier, mated ground, the 4th output wavelength laser frequency multiplier is arranged on the emitting light path of the described second output wavelength laser modulator, and the described second output wavelength laser part speculum also is the full impregnated mirror of the 4th output wavelength laser; And behind this second output wavelength laser part speculum, be provided with spectroscope, with the second output wavelength laser and the 4th output wavelength laser that obtains different exit directions.
3. medical multiple-wavelength laser according to claim 2 is characterized in that: also comprise the tilting first output wavelength laser, second completely reflecting mirror of 45 degree on the projecting light path that is positioned at the described second selection speculum.
4. according to the arbitrary described medical multiple-wavelength laser of claim 1 to 3, it is characterized in that: the pumping source of described side pumping full solid-state laser module is the diode laser matrix according to triangular arranged, employing side-pumping mode pumping laser medium, the laser diode wavelength is 808nm, laser medium is Nd:YAG, the plane is worn at two ends, be coated with the anti-reflection film of fundamental frequency light, and be furnished with the cooling system that diode laser matrix and laser medium are cooled off.
5. according to claim 2 or 3 described medical multiple-wavelength lasers, it is characterized in that: when having the 3rd output wavelength laser frequency multiplier, the employing water cooling of the 3rd output wavelength laser frequency multiplier gets the crystal two ends and is coated with the first output wavelength laser and the 3rd output wavelength laser anti-reflection film, and the coupling angle is respectively
6. medical multiple-wavelength laser according to claim 5 is characterized in that: the crystal of described the 3rd output wavelength laser frequency multiplier is KTP or lbo crystal.
7. according to claim 2 or 3 described medical multiple-wavelength lasers, it is characterized in that: when having the 4th output wavelength laser frequency multiplier, the water-cooled crystal of the employing of the 4th output wavelength laser frequency multiplier two ends are coated with the second output wavelength laser and the 4th output wavelength laser anti-reflection film, and the coupling angle is respectively
8. medical multiple-wavelength laser according to claim 7 is characterized in that: the crystal of described the 4th output wavelength laser frequency multiplier is a ktp crystal.
9. medical multiple-wavelength laser according to claim 3, it is characterized in that: the described first output wavelength Wavelength of Laser is 1064nm, the second output wavelength Wavelength of Laser is 1320nm, and the 3rd output wavelength Wavelength of Laser is 532nm, and the 4th output wavelength Wavelength of Laser is 660nm.
10. medical multiple-wavelength laser according to claim 9 is characterized in that: be coated with the 1064nm film that is all-trans on the described first output wavelength laser, first completely reflecting mirror, reflectivity is greater than 95%;
Be coated with 1064nm partial reflection film on the described first output wavelength laser part speculum, reflectivity greater than 10% less than 30%;
The described first output wavelength laser, second completely reflecting mirror is coated with 45 ° of incident 1064nm total reflection films, and reflectivity is greater than 95%;
Described second selects speculum to form resonant cavity is coated with 1320nm be all-trans film and 1064nm anti-reflection film, and the 1320nm reflectivity is greater than 95%, and the 1064nm transmitance is greater than 95%;
Described first selects to be coated with on the speculum 45 ° of incident 1064nm be all-trans film and 1320nm anti-reflection film, and the 1064nm reflectivity is greater than 95%, and the 1320nm transmitance is greater than 95%;
The described the 3rd selects speculum to be coated with 1064nm anti-reflection film and the 532nm film that is all-trans, and the 532nm reflectivity is greater than 95%, and the 1064nm transmitance is greater than 95%;
Be coated with 1064nm be all-trans film and 532nm anti-reflection film on described first auxiliary mirror; The 1064nm reflectivity is greater than 95%, and the 532nm transmitance is greater than 95%;
The described second output wavelength laser part speculum is coated with 660nm anti-reflection film and 1320nm partial reflection film, the 1320nm reflectivity greater than 5% less than 20%; The 660nm transmitance is greater than 95%;
Described spectroscope is coated with 45 ° of incident 660nm be all-trans film and 1320nm anti-reflection film;
The 660nm reflectivity is greater than 95%, and the 1320nm transmitance is greater than 95%;
The described second output wavelength laser modulator is coated with the 1320nm anti-reflection film;
The described second output wavelength laser modulator is coated with the 1064nm anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101952817A CN102280807A (en) | 2011-07-13 | 2011-07-13 | Medical multi-wavelength laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101952817A CN102280807A (en) | 2011-07-13 | 2011-07-13 | Medical multi-wavelength laser |
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| CN102280807A true CN102280807A (en) | 2011-12-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102772252A (en) * | 2012-07-26 | 2012-11-14 | 周辉 | Multifunctional laser medical device |
| CN108767640A (en) * | 2018-05-25 | 2018-11-06 | 国科世纪激光技术（天津）有限公司 | A kind of novel low ultraviolet solid state laser with high green light |
| CN109361148A (en) * | 2018-12-05 | 2019-02-19 | 深圳市创鑫激光股份有限公司 | A kind of solid state laser |
| CN114498278A (en) * | 2021-12-30 | 2022-05-13 | 深圳半岛医疗有限公司 | Medical laser and laser system |
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| CN201054458Y (en) * | 2007-05-28 | 2008-04-30 | 北京光电技术研究所 | Medical multi-wavelength laser device |
| CN101677174A (en) * | 2008-09-18 | 2010-03-24 | 中国科学院福建物质结构研究所 | Four-wavelength Q adjusting external cavity type frequency doubling pulse laser |
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| CN201054458Y (en) * | 2007-05-28 | 2008-04-30 | 北京光电技术研究所 | Medical multi-wavelength laser device |
| CN101677174A (en) * | 2008-09-18 | 2010-03-24 | 中国科学院福建物质结构研究所 | Four-wavelength Q adjusting external cavity type frequency doubling pulse laser |
| CN202142768U (en) * | 2011-07-13 | 2012-02-08 | 山东瑞华同辉光电科技有限公司 | Medical multi-wavelength laser device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772252A (en) * | 2012-07-26 | 2012-11-14 | 周辉 | Multifunctional laser medical device |
| CN102772252B (en) * | 2012-07-26 | 2014-07-02 | 周辉 | Multifunctional laser medical device |
| CN108767640A (en) * | 2018-05-25 | 2018-11-06 | 国科世纪激光技术（天津）有限公司 | A kind of novel low ultraviolet solid state laser with high green light |
| CN109361148A (en) * | 2018-12-05 | 2019-02-19 | 深圳市创鑫激光股份有限公司 | A kind of solid state laser |
| CN109361148B (en) * | 2018-12-05 | 2020-11-24 | 深圳市创鑫激光股份有限公司 | Solid laser |
| CN114498278A (en) * | 2021-12-30 | 2022-05-13 | 深圳半岛医疗有限公司 | Medical laser and laser system |
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