CN106532418A - Low-threshold Nd:YAG laser device driven by solar cell panel - Google Patents
Low-threshold Nd:YAG laser device driven by solar cell panel Download PDFInfo
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- CN106532418A CN106532418A CN201611147436.9A CN201611147436A CN106532418A CN 106532418 A CN106532418 A CN 106532418A CN 201611147436 A CN201611147436 A CN 201611147436A CN 106532418 A CN106532418 A CN 106532418A
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- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 25
- 239000010937 tungsten Substances 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims description 34
- 239000013078 crystal Substances 0.000 claims description 27
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims description 11
- 235000021384 green leafy vegetables Nutrition 0.000 claims description 7
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- 230000005611 electricity Effects 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 229910021419 crystalline silicon Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
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- 238000011160 research Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000013083 solar photovoltaic technology Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES 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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/164—Solid materials characterised by a crystal matrix garnet
- H01S3/1643—YAG
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
Abstract
The invention discloses a low-threshold Nd:YAG laser device driven by a solar cell panel. The low-threshold Nd:YAG laser device is provided with a solar photovoltaic power generation system and a low-threshold Nd:YAG laser device. The laser device is provided with electricity by adopting the solar cell panel, so that the laser device can work by using solar energy in an environment free of AC mains, a resonant cavity of the laser device is a two-mirror cavity, is simple in shape and easy to adjust, an outlet light threshold is very low, a water-cooling system is not needed, the cost is low, and the laser device can directly generate electricity through the sunlight, can simulate the sunlight to generate electricity through a halogen tungsten lamp array in a laboratory with insufficient light, meets the indoor laboratory teaching requirements and is beneficial to popularization of laser device-related knowledge. The low-threshold Nd:YAG laser device works by using the solar energy, so that the geographical restrictions of laser device application are effectively avoided, and the low-threshold Nd:YAG laser device responds to the environmental protection concept of sustainable development advocated by the country and has great significance.
Description
Technical field
The present invention relates to photovoltaic technology and laser technology field, more particularly to the Low threshold that a kind of solar panel drives
Nd：YAG laser.
Background technology
In recent years, laser technique has obtained unprecedented development, therewith in industry, medical treatment, business, scientific research, information and army
In six fields of thing, the application of laser is also more and more.Electric power system is the heart of laser instrument, and general laser pump source
Power supply all adopts the alternating current of interior, due to this design so that the working range of laser instrument is very restricted, and especially exists
The no man's land of some bad environments such as field, such as Gobi desert, desert, the electric power system of laser instrument will seem particularly difficult.By
In the progressively ripe of solar-photovoltaic technology and increasingly poor with earth resource, solar energy is as a kind of safety, without dirt
Dye, the discharge of zero air off gas, the new forms of energy of sustainable development are increasingly taken seriously.In colleges and universities, the related teaching of laser instrument
Increasingly it is subject to the concern and attention of teachers, and laser instrument due to itself cost intensive, regulation difficulty is higher, general only to use
In terms of related scientific research, away from undergraduate infrastest so that the laser experiments that university student can contact are few, from
And mystique of the laser instrument in the minds of student is virtually increased, hinder understanding of the student to laser instrument, slow laser instrument
Development.
In sum, there is working range and be very restricted in the power supply of existing laser instrument, in terms of teaching, laser instrument
Due to itself cost intensive, it is higher to adjust difficulty, so as to generate a certain distance with pass student, slow laser instrument
Development.
The content of the invention
It is an object of the invention to provide the Low threshold Nd that a kind of solar panel drives：YAG laser, it is intended to solve
The problem limited by alternating current in power supply mode and scope by existing laser instrument, it is low that laser instrument goes out photo threshold, simple to operate, into
This is cheap, and the laser instrument can directly pass through solar power generation, also can pass through halogen tungsten in the not enough laboratory of illumination
Lamp array row simulated solar irradiation is generated electricity, and meets the demand of teacher's teaching and student experimenting.
The Low threshold Nd that the solar panel that the present invention is provided drives：YAG laser, adopts nominal output values for 50W/
The output end of solar panel is connected to the sun using wire as energy source by the single-crystalline-silicon solar-cell panel of 18V
The input of energy charge control module, then the output end of solar charging electric control module is connected to into 10Ah/12V too via wire
On the special colloid storage battery of sun energy and DCDC power module inputs, the nominal voltage of DCDC power modules output connects through wire
It is connected on the drive circuit board of laser instrument LD pumping sources, is the stable energy source of the offer of laser instrument, allows laser instrument to exist
In environment without electric main, using solar energy come work, so as to efficiently solve the regional limitation of laser application, and
The environmental protection concept of the sustainable development that country advocates is responded.Then the continuous light of 808nm/2W is produced by LD pumping sources, is passed through
Collimation, condenser lens focus on Nd：In YAG laser crystal, plano-concave pumping mirror, flat output mirror constitute two border chamber of linear pattern, lead to
In overregulating light path, each element is so as to export 1064nm near-infrared lasers.1064nm light Jing ktp crystal times pollakicoprosis is obtained
532nm visible greens.
Further, when sunshine is sufficient, solar panel is fixed on solar cell grillage, adjusts solar energy
The sunshine that battery grillage reaches acceptance is most strong.When indoors, solar panel is placed on immediately below halogen tungsten lamp array, is led to
Crossing the light that halogen tungsten lamp sends replaces sunshine to provide luminous energy for solar panel.Solar charging controller, battery, DCDC
Power module three is packaged in box jointly.LD pump lasers optical fiber head is fixed on two-dimentional adjustable mirror holder by ring flange
On, collimation lens, condenser lens, plano-concave pumping mirror and flat output mirror are fixed on two-dimentional adjustable mirror holder.Two-dimentional adjustable mirror holder
It is fixed on slide unit by pole and sleeve, the height of each element, Nd can adjust by pole：YAG laser crystal and KTP
Frequency-doubling crystal connects pole by the platform of 25*20*5mm (long * width * is high) and sleeve is fixed on slide unit, and slide unit is installed in
On accurate slide rail, the distance between each element can adjust by slide anteroposterior.
The Low threshold Nd that the solar panel that the present invention is provided drives：YAG laser control system, comprising solar energy
Volt system and low threshold laser system two large divisions；Electric main electric power system is changed to solar energy confession by solar energy photovoltaic system
Electric system；Low threshold laser system is that international upper threshold value is minimum, and cost is cheap, and regulative mode is simple, is particularly well-suited to
In terms of teaching and student's infrastest.
The present invention adopts solar panel for energy source, and comes for laser through electrical power storage and voltage conversion circuit
Device is powered, and allows laser instrument in not having the environment of electric main, using solar energy come work, so as to efficiently solve laser
The regional limitation of device application, and the environmental protection concept of the sustainable development that country advocates has been responded, have great importance.This
It is bright to disclose the low of the solar panel driving for aspects such as the related teaching of laser instrument, student experimenting, utilization of new energy resources
Threshold value Nd:YAG laser；Without the need for water-cooling system, lumen type is simple and can easily be accommodated for laser instrument, and it is low to go out photo threshold, with low cost, leads to
Crossing frequency-doubling crystal can make sightless 1064nm light be converted into visible 532nm visible greens so that experimental phenomena becomes apparent from
With it is interesting.And laser instrument both can directly pass through solar power generation, also halogen tungsten lamp can be passed through in the not enough laboratory of illumination
Array simulated solar irradiation is generated electricity, and is met the requirement of teacher's teaching, the demand that student starts and is known beneficial to laser instrument correlation
The popularization of knowledge.Be intended to Low threshold, high efficiency, lumen type it is simple and can easily be accommodated, without the need for water-cooling system, with low cost, safe, pass through
Frequency-doubling crystal can make sightless 1064nm light be converted into visible 532nm visible greens so that experimental phenomena become apparent from and
It is interesting.And the laser instrument of the present invention can directly pass through solar power generation, also can pass through in the not enough laboratory of illumination
Halogen tungsten lamp array simulated solar irradiation is generated electricity；Simultaneously to solve the regional limitation of laser application, what response country advocated can
The environmental protection concept of sustainable development provides a kind of simple and practical technology.
Description of the drawings
Fig. 1 is the Low threshold Nd that solar panel provided in an embodiment of the present invention drives：YAG laser device frame
Figure.
Fig. 2 is the Low threshold Nd of sun optical drive provided in an embodiment of the present invention：YAG laser principle framework figure.
Fig. 3 is the Low threshold Nd that halogen tungsten lamp array provided in an embodiment of the present invention replaces sun optical drive：YAG laser is former
Reason frame diagram.
Fig. 4 is Driven by Solar Energy circuit module provided in an embodiment of the present invention.
Fig. 5 is that halogen tungsten lamp array provided in an embodiment of the present invention replaces sunshine drive circuit module.
In Fig. 1：1st, halogen tungsten lamp array；2nd, solar panel；3rd, fan；4th, solar charging controller；5th, battery；
6th, DCDC power modules；7th, wire；8th, LD pumping sources；9th, collimation lens；10th, condenser lens；11st, plano-concave pumping mirror；12、Nd：
YAG laser crystal；13rd, flat output mirror；14th, KTP frequency-doubling crystals.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention
Limit the present invention.
Below in conjunction with the accompanying drawings the structure of the present invention is explained in detail.
As shown in figure 1, the Low threshold Nd that the solar panel of the embodiment of the present invention drives：YAG laser includes：The sun
Can photovoltaic generating system：Solar panel, for producing electric energy；Halogen tungsten lamp array, in the indoor replacement for not having sunshine too
Sunlight charges to solar panel, is mainly used in testing, imparts knowledge to students；Fan, lowers the temperature to halogen tungsten lamp；Charge controller, protects
Card battery-operated greatly prolongs the service life of battery in optimal state；Battery, for storing and discharging solar energy
The electric energy that cell panel is produced；The unstable direct current energy that solar energy photovoltaic system is produced is converted to laser by DCDC power modules
Stable DC electric energy needed for device LD pumping sources.Low threshold Nd：YAG laser system：By pumping source, collimating mirror, focus lamp, flat
Recessed pumping mirror, laser crystal, plane output coupling mirror and KTP frequency-doubling crystals composition.
The design parameter of element is as follows：Solar panel be 50W/18V export monocrystalline silicon, size 530*350*22mm,
Normal working voltage is 17.2V, and operating current is 1.16A, and up to 22.2V, short circuit current is 1.24A to open-circuit voltage, conversion effect
Rate is 18%.Solar charging controller can be with automatic identification 12V or 24V, and charging current and load current have up to 10A
The functions such as overload protection, output short circuit protection.Solar energy special colloid storage battery of the battery for 10Ah/12V, in practical application
Without damage to ensure battery, battery charging voltage may not exceed 24V, and discharge voltage can not be less than 8V, in the system work(
Under rate is required, can continuously using 3 hours, output voltage be not less than 8V during battery full capacity.DCDC power module input voltages
Scope is direct current 5V 30V, and output voltage is that 1.25V 28V are adjustable, and under the conditions of 5V voltage outputs, maximum output current can
Up to 8A, efficiency meets the requirement of laser instrument peak power 5V/4A/20W up to 91%, with overload, over-pressed, short-circuit, under-voltage guarantor
Shield.LD drive circuit for laser plate power supply voltage ranges are：4.5V 5.5V, during peak power, electric current is 4A.Collimation lens
Focal length is 50mm, and the focal length of condenser lens is 100mm；The concave curvature radius of plano-concave pumping mirror is 150mm.Pumping source is wavelength
For the semiconductor laser that the fiber coupling of 808nm is exported, pump power is up to 2W.Plano-concave pumping mirror is high to 808nm light thoroughly,
Transmitance is more than 95%, and high to 1064nm light anti-, reflectivity is more than 99.8%.Nd：YAG laser crystal size is 4*4*5mm, Nd
It is doped to 1.1%.Flat output mirror is 5 to the transmitance of 1064nm light.KTP frequency-doubling crystals size is 4*4*5mm.
Concrete installation requirement is as follows：When sunshine is sufficient, solar panel is fixed on solar cell grillage,
When indoors, solar panel is placed on immediately below halogen tungsten lamp array.Solar charging controller, battery, DCDC are electric
Source module and LD drive circuit for laser plate are packaged in box jointly.LD pump lasers optical fiber head passes through ring flange
It is fixed on two-dimentional adjustable mirror holder, collimation lens, condenser lens, plano-concave pumping mirror and flat output mirror are fixed on two-dimentional adjustable mirror
On frame.Two dimension is adjustable, and mirror holder is fixed on slide unit by pole and sleeve, can adjust the height of each element by pole,
Nd：YAG laser crystal and KTP frequency-doubling crystals connect pole by the platform of 25*20*5mm (long * width * is high) and sleeve is fixed
On slide unit, slide unit is installed on accurate slide rail, can adjust the distance between each element by slide anteroposterior.
It is concrete to adjust as follows：It is energy source that nominal output values are adopted for the single-crystalline-silicon solar-cell panel of 50W/18V, and
It is that the special colloid storage battery of 10Ah/12V solar energy charges through solar charging controller, then through DCDC power modules and LD
Drive circuit for laser plate, the 5V power supplys required for being transformed to, the electrical power required for providing for LD pumping sources, this partly belongs to
Circuit oneself control module, need to only open switch during work.Then the continuous light of 808nm/2W is produced by LD pumping sources, is led to
Cross collimation lens by beam collimation, then pass through condenser lens 808nm pump lights focused on into Nd：YAG laser crystal center, swashs
The distance of luminescent crystal centre-to-centre spacing condenser lens is about 100mm, and plano-concave pumping mirror, flat output mirror constitute two border chamber of linear pattern,
At a distance of 60mm or so, laser crystal is placed on two mirror chamber near center locations to two sides mirror, carefully adjust in light path each element from
And export 1064nm near-infrared lasers.1064nm light Jing ktp crystal times pollakicoprosis is obtained into 532nm visible greens.
The application principle of the present invention is explained in detail with reference to specific embodiment.
Embodiments of the invention 1 as shown in Fig. 2 by solar panel 2, solar charging controller 4, battery 5,
DCDC power modules 6, wire 7, LD pumping sources 8, collimation lens 9, condenser lens 10, plano-concave pumping mirror 11, Nd：YAG laser is brilliant
The Low threshold Nd that body 12, flat output mirror 13, the solar panel of the composition sunlight of KTP frequency-doubling crystals 14 drive：YAG
Laser instrument.Powered for solar panel by sunshine, and charged for battery through solar charging controller, then passed through
DCDC power modules and LD drive circuit for laser plates, the 5V power supplys required for being transformed to, required for providing for LD pumping sources
Electrical power.Then the continuous light of 808nm/2W is produced by LD pumping sources, pump mode is end pumping, by collimation, is focused on thoroughly
Mirror focuses on Nd：In YAG laser crystal, plano-concave pumping mirror, flat output mirror constitute two border chamber of linear pattern, by adjusting in light path
Each element is so as to exporting 1064nm near-infrared lasers.1064nm light Jing ktp crystal times pollakicoprosis is obtained into 532nm visible green
Light.
In test, with sunlight 50W/18V solar panels, in 12 points to 4 points of the sky and water Qinzhou District area afternoon
When illumination is sufficient, peak power output is up to 35W, electric current 2.3A, voltage 15V.Jing circuit modules are powered for LD pumping sources, carefully
It is 400mW to adjust light path and measure the laser instrument to the output threshold value of 1064nm light, relative to the Slop efficiency of input pumping is
29.65%, highest 2W draw power output 475mW laser.Jing ktp crystal frequencys multiplication, the 532nm of most high available 385mW are visible
Green glow, light-phototranstormation efficiency are 76%, and under non-illuminated conditions, fully charged battery can ensure laser instrument normal work at 3
Hour or so, laser power stabilization, functional during this period.
Embodiment 2：
Embodiments of the invention 2 are as shown in figure 5, by halogen tungsten lamp array, fan, solar panel 1, solar panel
Frame 2, circuit module 3, wire 4, LD pumping sources 5, collimation lens 6, condenser lens 7, plano-concave pumping mirror 8, Nd：YAG laser crystal
9th, the Low threshold Nd that flat output mirror 10, the solar panel of the composition halogen tungsten lamp array irradiation of KTP frequency-doubling crystals 11 drive：
YAG laser.Sunshine is replaced to power for solar panel by halogen tungsten lamp array, other steps are in accordance with embodiment 1
Control method is just obtained the 532nm visible greens of the black light and frequency multiplication of 1064nm.
Single-crystalline-silicon solar-cell panel is 950nm to efficiency of light absorption highest wavelength, and effective range is 300nm-
1100nm, the maximum wavelength of halogen tungsten lamp luminescent spectrum efficiency are 1000nm, and effective range is 500 2500nm, and monocrystalline silicon is too
It is positive can cell panel effective uptake region relatively, light energy absorption efficiency compares xenon lamp and Halogen lamp LED will height well.Halogen tungsten lamp
Array is made up of 9 halogen tungsten lamps, is arranged using 3 rows, 3 row modes, and irradiated area 500*500mm meets solar cell enough
The requirement of luminous energy needed for plate.
In test, the array irradiation 20W/18V solar panels of 9 halogen tungsten lamp compositions, solar panel are placed on 9
Immediately below the array of halogen tungsten lamp composition, peak power output is up to 14W, electric current 1A, voltage 14V, and is designed with high-power heat-dissipation
Fan, prevents battery plate temperature too high and damages, and halogen tungsten lamp and radiator fan are powered as 220V electric mains, and the wind speed of fan can
Adjust, be typically adjusted to maximum fully radiating, 20W/18V solar panels need to be positioned over the underface of halogen tungsten lamp.Jing circuit moulds
Block is powered for LD pumping sources, and it is 400mW carefully to adjust light path and measure the laser instrument to the output threshold value of 1064nm light, relative to defeated
The Slop efficiency for entering pumping is 29.65%, highest 2W draw power output 475mW laser.Jing ktp crystal frequencys multiplication, most high available
The 532nm visible greens of 385mW, light-phototranstormation efficiency are 76%, and under non-illuminated conditions, fully charged battery can ensure to swash
, in 3 hours or so, laser power stabilization, functional during this period for light device normal work.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (3)
1. the Low threshold Nd that a kind of solar panel drives：YAG laser, it is characterised in that the solar panel drives
Dynamic Low threshold Nd：The photovoltaic generating system of YAG laser includes：Solar photovoltaic generation system and Low threshold Nd：YAG laser
Device；
The solar photovoltaic generation system includes：
For producing the solar panel of electric energy；
For ensureing battery-operated in optimal state, the solar charging controller of increasing storage battery service life；
For storing and discharging the battery of the electric energy of solar panel generation；
For by too can cell panel produce unstable DC voltage be converted into the stable DC voltage needed for LD pumping sources
DCDC power modules；
The Low threshold Nd：YAG laser includes：
For producing the LD pumping sources that wavelength is 808nm laser；
For high to pump light 808nm saturating, pump light is focused on the collimating mirror and focus lens system in crystal；
For high to 808nm saturating, to the high anti-plano-concave pumping mirror of 1064nm light；
Be converted into by optical resonator for the energy that provides LD pumping sources be concerned with room and time with height
The Nd of collimation and monochromaticjty laser:YAG laser crystal；
Export for the light part to 1064nm, be coated with to 1064nm light transmission rates and be 5% and 808nm light reflectivities are more than
The flat output mirror of 99.9% deielectric-coating；
For by 1064nm black lights frequency multiplication for 532nm visible greens ktp crystal.
2. the Low threshold Nd that solar panel as claimed in claim 1 drives：YAG laser, it is characterised in that feature exists
In the solar panel is provided with halogen tungsten lamp array；
Halogen tungsten lamp array is made up of 9 halogen tungsten lamps, is arranged using 3 rows, 3 row modes.
3. the Low threshold Nd that solar panel as claimed in claim 1 drives：YAG laser, the LD pumping sources are ripples
The semiconductor laser of a length of 808nm fiber couplings output；The focal length of collimation lens is 50mm, and the focal length of condenser lens is
100mm；The concave curvature radius R=150mm of plano-concave pumping mirror, is coated with to 808nm light height thoroughly, and transmitance is more than 95%, right
1064nm light is high anti-, deielectric-coating of the reflectivity more than 99.8%；Flat output mirror is coated with to Jie that 1064nm light transmission rates are 5%
Plasma membrane.
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| CN201611147436.9A CN106532418B (en) | 2016-12-13 | 2016-12-13 | Solar panel driven low threshold Nd: YAG laser |
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| CN201611147436.9A CN106532418B (en) | 2016-12-13 | 2016-12-13 | Solar panel driven low threshold Nd: YAG laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275922A (en) * | 2017-06-21 | 2017-10-20 | 天水师范学院 | A kind of power-supply system based on solar panels driving semiconductor laser |
| CN113363798A (en) * | 2021-05-20 | 2021-09-07 | 厦门大学 | Adjustable high-optical-efficiency broadband multi-longitudinal-mode Raman microchip laser |
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| CN106532418B (en) | 2024-05-07 |
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