CN108110602A - A kind of full solid T m:LuScO3Q-switch and mode-locking ceramic laser - Google Patents
A kind of full solid T m:LuScO3Q-switch and mode-locking ceramic laser Download PDFInfo
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- CN108110602A CN108110602A CN201711270307.3A CN201711270307A CN108110602A CN 108110602 A CN108110602 A CN 108110602A CN 201711270307 A CN201711270307 A CN 201711270307A CN 108110602 A CN108110602 A CN 108110602A
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1112—Passive mode locking
- H01S3/1115—Passive mode locking using intracavity saturable absorbers
- H01S3/1118—Semiconductor saturable absorbers, e.g. semiconductor saturable absorber mirrors [SESAMs]; Solid-state saturable absorbers, e.g. carbon nanotube [CNT] based
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
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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
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094049—Guiding of the pump light
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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
- H01S3/14—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
- H01S3/1685—Ceramics
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Abstract
The invention belongs to field of laser device technology, disclose a kind of full solid T m:LuScO3Q-switch and mode-locking ceramic laser, including：Pumping source, for the pumping laser that generation wavelength is 795.7nm；Condenser lens, for thoroughly, pumping laser to be focused in crystal to pumping laser height；Tm:LuScO3Ceramic laser gain media, for the pumping laser of centre wavelength 795.7nm to be changed into 2 mu m waveband lasers；Laserresonator is used to implement the operating of 2 mu m waveband lasers；Graphene oxide saturable absorber is transformed into pulsed light for that will export continuous light.The present invention provides a kind of 2 mu m wavebands, and face Differential Absorption Laser Radar System, laser eye surgery, Laser Micro-Machining are thrown positioned at the solid state laser light source of the strong absorption bands of hydrone, such as laser range finder, coherent Doppler wind-observation radar, vapor.
Description
Technical field
The invention belongs to field of laser device technology more particularly to a kind of full solid T m:LuScO3Q-switch and mode-locking ceramic laser
Device.
Background technology
All solid state ultrashort pulse laser has many advantages, such as high efficiency, performance stabilization, long-life, high light beam quality, because
This is always one of research hotspot of ultrafast laser technique.2 mu m waveband full solid T m of eye-safe:LuScO3Ceramic laser
Device, centre wavelength are located at the strong absorption bands 1800-2000nm of hydrone, have very big application potential.It can be used for
Do laser range finder, coherent Doppler wind-observation radar, vapor throw face Differential Absorption Laser Radar System, laser eye surgery,
The perfect light source of Laser Micro-Machining.Laser transparent ceramic is that the another laser gain for being worth attracting attention is situated between after monocrystalline, glass
Matter, a new direction is provided for the development of laser at the advantages of having had both crystal and glass material.Czochralski grown
Monocrystalline is restricted its performance and application range since its growth cycle is long, expensive, size is small and doping concentration is low.
The shortcomings that glass, mainly thermal conductivity and hardness were not high enough, cause laser glass when working with high-average power, material internal
Big thermally induced birefringence and optical distortion are generated, this point shows especially prominent when light laser field is applied, and it swashs
Light efficiency is relatively low compared with monocrystal material.Laser transparent ceramic has the spectrum and laser characteristics substantially similar with laser crystal,
Large scale, the potential advantages of high quality can be obtained by having simultaneously.In addition, due to the special grain boundary structure of ceramics, and make
Obtaining laser ceramics, there is the different performance of laser crystal to be compared with monocrystalline, and crystalline ceramics has doping concentration high, adulterates
Even property is good, and sintering temperature is low, and the cycle is short, at low cost, and quality controllability is strong, and size is big, and freedom shape is big and can realize
The advantages that multi-layer multi laser；It is compared with glass, crystalline ceramics is good with monochromaticjty, and structure composition is even more ideal, heat
The advantages that conductance height and the high radiant power that can be born.
Growth of the graphene oxide (Grapheneoxide, GO) as graphene, competitive advantage is had more than graphene,
Since its surface is with a large amount of hydrophilic acidic functional groups, there is good wettability and surface-active, thus can
Disperse in diluted alkaline water and pure water and form stable colloidal suspensions, compared with graphene, scattered effect in aqueous solution
Fruit is more preferable.And manufacturing cost is less expensive, raw material is easy to get, raw material availability higher is highly suitable as saturable absorber.Adjust Q
It is the two methods of acquisition short pulse with locked mode, is respectively intended to meet the different need to high-peak power and high-resolution pulse
It will.Two kinds of technologies are combined together, is exactly Q-switch and mode-locking technology, while there is more high-peak power and high-resolution.Adjust Q locks
Mold refers to the existing mode locking pulse sequence in the case where adjusting Q envelopes, i.e., the amplitude of mode locking pulse is by periodic modulation.Adjust Q locks
Under mould state, the cycle for adjusting Q envelopes is usually the μ s orders of magnitude, and inside is a series of ultrashort mode locking pulse of picosecond magnitude pulsewidths.
In conclusion problem existing in the prior art is：Since ceramics are polycrystalline, internal crystal boundary, stomata, lattice
Imperfection etc. can all cause the opacity of material and increase the scattering loss of light, therefore use it for laser medium and deposit
In certain difficulty.Current 2 mu m waveband laser transparent ceramic is mainly with YAG and Lu2O3For the laser transparent ceramic material of matrix,
The present invention enriches 2 mu m waveband laser transparent ceramic matrix.Graphene oxide saturable absorber is as new saturable absorption
Body instead of traditional handicraft complexity, absorption band width, expensive SESAM, reduces the cost of saturable absorber, easily
In popularization, and support broader absorption bands.
The content of the invention
In view of the problems of the existing technology, the present invention provides a kind of full solid T m:LuScO3Q-switch and mode-locking ceramics swash
Light device.
The present invention is achieved in that a kind of full solid T m:LuScO3Q-switch and mode-locking ceramic laser, it is described all solid state
Tm:LuScO3Q-switch and mode-locking ceramic laser includes：
Pumping source, for the pumping laser that generation wavelength is 795.7nm；
Condenser lens, for thoroughly, pumping laser to be focused in crystal to pumping laser height；
Tm:LuScO3Ceramic laser gain media, for the pumping laser of centre wavelength 795.7nm to be changed into 2 μm of ripples
Duan Jiguang；
Laserresonator is used to implement the operating of 2 mu m waveband lasers；
Graphene oxide saturable absorber is transformed into pulsed light for that will export continuous light.
Further, the condenser lens is placed on by two-dimentional adjustable mirror on one-dimensional translation stage.
Further, the Tm:LuScO3Ceramic laser gain media is clamped in after being wrapped up with indium foil in red copper cooling fin,
Red copper cooling fin connects constant temperature water circulation system；
Thulium ion doping concentration is 2%, is placed on the one-dimensional translation stage of 40mm*40mm；Second plano-concave refrative mirror passes through
Two adjustable mirrors are placed on one-dimensional translation stage；
Further, the condenser lens, focal length f=120mm；
The laserresonator is by the first plano-concave refrative mirror, the second plano-concave refrative mirror, the 3rd plano-concave refrative mirror, outgoing mirror
It is formed with plane high reflective mirror；
First plano-concave refrative mirror, the second plano-concave refrative mirror, the 3rd plano-concave refrative mirror concave curvature radius are 100mm, are put down
Face speculum and outgoing mirror are fixed on by two-dimentional mirror holder on 304 stainless steel columns.
Another object of the present invention is to provide a kind of full solid T m:LuScO3Q-switch and mode-locking ceramic laser
Tm:LuScO3The preparation method of ceramic laser gain media, the Tm:LuScO3Ceramic laser gain media uses solid-state reaction
Prepared by sintering processing, about 700 DEG C of sintering temperature.
Another object of the present invention is to provide a kind of full solid T m:LuScO3The oxygen of Q-switch and mode-locking ceramic laser
The preparation method of graphite alkene saturable absorber, the preparation method of the graphene oxide saturable absorber include：Oxidation
Graphene saturable absorber is prepared using vertical-growth method.The concentrated sulfuric acid and hydrogen peroxide are pressed 1 first:3 mixing, are uniformly mixed
Quartz plate is put into wherein afterwards, until quartz plate surface no longer generates bubble, taking-up is dried, and obtains the stone of hydrophilic treated
English piece；Then graphene oxide powder is placed in deionized water, when ultrasound 10 is small or so, is then centrifuged for handling, prepare
The GO solution of 0.3mg/mL；Finally GO solution is injected in a polystyrene square box, by the quartz plate that hydrophilic treated is crossed along right
Linea angulata is vertically put into box, stands first quarter moon, after solution is evaporated, takes out quartz plate, graphene oxide composite material is deposited on quartz
The both sides of piece, prepared by graphene oxide saturable absorber completes.
Another object of the present invention is to provide a kind of application full solid T m:LuScO3Q-switch and mode-locking ceramic laser
Laser range finder.
Another object of the present invention is to provide a kind of application full solid T m:LuScO3Q-switch and mode-locking ceramic laser
Coherent Doppler wind-observation radar.
Another object of the present invention is to provide a kind of application full solid T m:LuScO3Q-switch and mode-locking ceramic laser
Vapor throw face Differential Absorption Laser Radar System.
The present invention provides a kind of 2 mu m waveband light sources, and the wave band of laser is weaker in atmospheric scattering, even if there is sensitive detection
Device also is difficult to that it detect outside beam, improves military security；Positioned at the strong absorption bands of hydrone, to eye-safe；Greatly
Gas transporting is good, strong to battlefield smoke of gunpowder penetration power, and face differential absorption lidar system is thrown available for laser range finder and vapor
System.The solid state laser of 2 mu m wavebands is the best match of coherent laser radar, can improve and disturb measurement to small scale whirlpool
Resolution ratio and analysis precision.The 2 mu m coherent laser radars of German DLRFalcon take wind field and atmospheric turbulance information
Special data processing method, for the velocity resolution of direction of visual lines up to several cm/s, angle scanning spatial resolution reaches several mrad,
It is mainly used for exciting the analysis of whirlpool microturbulence and research.
Description of the drawings
Fig. 1 is full solid T m provided in an embodiment of the present invention:LuScO3Q-switch and mode-locking ceramic laser structure diagram；
Fig. 2 is suction of the laser crystal provided in an embodiment of the present invention to pump light under the non-operating of laser and operating condition
Rate of producing effects schematic diagram；
Fig. 3 is that different absorptive pumping power are corresponding under continuous and Q-switch and mode-locking laser operation provided in an embodiment of the present invention
Output light mean power schematic diagram；
It is 2ms that Fig. 4, which is laser continuous locking mold provided in an embodiment of the present invention in sweep time, 500 μ s, 10 μ s and 10ns
Mode locking pulse sequence diagram；
Fig. 5 is that laser provided in an embodiment of the present invention is continuous and Q-switch and mode-locking operates output spectrum schematic diagram.
In figure：1st, pumping source；2；First pump light plane mirror；3rd, the second pump light plane mirror；4th, focus on saturating
Mirror；5th, the first plano-concave refrative mirror；6、Tm:LuScO3Ceramic laser gain media；7th, the second plano-concave refrative mirror；8th, the 3rd plano-concave
Refrative mirror；9th, graphene oxide saturable absorber；10th, plane high reflective mirror；11st, outgoing mirror.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
The application principle of the present invention is explained in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, full solid T m provided in an embodiment of the present invention:LuScO3Q-switch and mode-locking ceramic laser includes：Pump
Pu source 1；First pump light plane mirror 2, the second pump light plane mirror 3, condenser lens 4, the first plano-concave refrative mirror 5,
Tm:LuScO3Ceramic laser gain media 6, the second plano-concave refrative mirror 7, the 3rd plano-concave refrative mirror 8, graphene oxide saturable
Absorber 9, plane high reflective mirror 10, outgoing mirror 11.
Pumping source 1, for the pumping laser that generation wavelength is 795.7nm.
Condenser lens 4, for thoroughly, pumping laser to be focused in crystal to pumping laser height.
Tm:LuScO3Ceramic laser gain media 6, for changing the wavelength of laser, by the pumping of centre wavelength 795.7nm
Fortune laser changes into 2 mu m waveband lasers.
Laserresonator, for the light that frequency is certain, direction is consistent to be selected to make prepreerence amplification, and other frequencies
Inhibited with the light in direction, realize the operating of 2 mu m waveband lasers.
Graphene oxide saturable absorber 9 is transformed into pulsed light for that will export continuous light.
Tm:LuScO3The ceramic crystal that ceramic laser gain media 6 is prepared for solid state reaction sintering method, graphite oxide
Alkene saturable absorber 9 is prepared using vertical-growth method.
Pumping source 1 is the titanium-doped sapphire laser that wavelength is 795.7nm, and pump power is up to 3.5W；Condenser lens
4 focal length is f=120mm；First plano-concave refrative mirror 5, the second plano-concave refrative mirror 7 and the 3rd plano-concave refrative mirror 8 are to 770-
1050nm wavelength pumpings light transmission rate is more than 95%, is more than 99.9% to the reflectivity of 1800nm-2075nm wave band of laser, recessed
Curvature radius is 100mm；Tm:LuScO3Ceramic laser gain media 6 is Tm:LuScO3Ceramics, using Brewster's angle
It is cut, two thang-kng end faces is polished, the dopant concentration of thulium (Tm) is 2%, size 3*3*5mm；High reflection mirror 10
99.9% is more than to the reflectivity of 1800nm-2075nm wave band of laser；The transmitance of outgoing mirror 11 is respectively 0.9%, 1.5%,
3% and 5%.
Condenser lens 4 is placed on by two-dimentional adjustable mirror on one-dimensional translation stage by the present invention, and size can at will be chosen, amount
Journey ± 12.5mm.First plano-concave refrative mirror 5 is fixed on by the adjustable mirror holder of two dimension on 304 stainless steel columns.Laser crystal indium
It is clamped in after paper tinsel package in red copper cooling fin, red copper crystal folder is cooled down using circulation in experimentation, water temperature
Maintain 13 DEG C or so, in order to avoid damage to laser medium.Red copper cooling fin is placed on the one-dimensional flat of 40mm*40mm
In moving stage, polishing crystal end face and incident pump light beam angle are Brewster's angle.Second plano-concave refrative mirror 7 can by two dimension
Mirror holder is adjusted to be placed on one-dimensional translation stage, size can at will be chosen, range ± 12.5mm.High reflection mirror 10 and outgoing mirror 11 pass through
Two-dimentional mirror holder is fixed on 304 stainless steel columns.
Full solid T m provided in an embodiment of the present invention:LuScO3Q-switch and mode-locking ceramic laser is generated by pumping source
795.7nm/3.5W pumping laser, Tm is focused on by condenser lens:LuScO3In ceramics, selected by laserresonator
The centre wavelength laser amplifier that frequency is certain, direction is consistent, realizes laser operation, and careful optimal cavity makes up to most preferably
Laser operation, special Resonator design cause the laser to realize the efficient continuous laser operating of Low threshold, then pass through
Intracavitary, which introduces graphene oxide saturable absorber, realizes laser Q-switch and mode-locking pulse output.
The application principle of the present invention is explained in detail with reference to specific embodiment.
Full solid T m provided in an embodiment of the present invention:LuScO3Q-switch and mode-locking ceramic laser as shown in Figure 1, one pump
1, two, Pu source pump light plane mirror 2 and 3, one condenser lens 4, the first plano-concave refrative mirror 5, laser crystal 6, second
Plano-concave refrative mirror 7, the 3rd plano-concave refrative mirror 8,9, plane high reflective mirrors 10 of graphene oxide saturable absorber and one
Outgoing mirror 11 is composed.Pumping source 1 is the titanium-doped sapphire laser that wavelength is 795.7nm, and pump power is up to
3.4W；The focal length of condenser lens L is f=120mm；First plano-concave refrative mirror 5, the second plano-concave refrative mirror 7 and the 3rd plano-concave fold
Mirror 8 is more than 95% to 770-1050nm wavelength pumpings light transmission rate, and the reflectivity of 1800nm-2075nm wave band of laser is more than
99.9%, concave curvature radius is 100mm；Laser crystal 6 is Tm:LuScO3Ceramics are cut using Brewster's angle
It cuts, two thang-kng end faces is polished, the dopant concentration of thulium (Tm) is 2%, size 3*3*5mm；High reflection mirror 10 is right
The reflectivity of 1800nm-2075nm wave band of laser is more than 99.9%；The transmitance of outgoing mirror 11 is respectively 0.9%, 1.5%,
3% and 5%.
Pumping source 1 can be the titanium-doped sapphire laser that wavelength is 795.7nm or wavelength is 795.7nm
Semiconductor laser or the semiconductor laser of fiber coupling output, pump mode is end pumping.
The schematic diagram of Fig. 2, Fig. 3, Fig. 4, Fig. 5 can be drawn by adjusting light path by the adjusting method of embodiment, such as Fig. 2 institutes
To show, when drawing no laser generation, the absorption efficiency of crystal is 59.66%, when laser is continuously and tune Q locked modes vibrate, the suction of crystal
Rate of producing effects is 63.17%.After laser generation generation, the absorption of crystal is caused due to consuming substantial amounts of upper energy level population
Efficiency becomes higher.
As shown in figure 3, the threshold power for continuously running laser is 430mW under 0.9% outgoing mirror, compared with absorption
The Slop efficiency of pump power is that the corresponding output powers of 6.02%, 3.5W are 105mW；The threshold value of laser under 1.5% outgoing mirror
Power is 436mW, and the Slop efficiency compared with absorptive pumping power is that the corresponding output powers of 7.70%, 3.5W are 137mW；
The threshold power of laser is 474mW under 3% outgoing mirror, and the Slop efficiency compared with absorptive pumping power is 14.06%, 3.5W pairs
The output power answered is 257mW；The threshold power of laser is 501mW under 5% outgoing mirror, compared with absorptive pumping power
Slop efficiency is that the corresponding output powers of 9.14%, 3.5W are 159mW.When Q-switch and mode-locking operates, 0.9% outgoing mirror is selected, works as suction
It receives power and is more than 504mW realization laser outputs, realize that stablizing Q-switch and mode-locking operates when absorbed power is more than 1.43W, output is most
High power 66mW；1.5% outgoing mirror is selected, laser output is realized when absorbed power is more than 510mW, when absorbed power is more than
It is realized during 1.60W and stablizes Q-switch and mode-locking operating, output peak power 89mW；3% outgoing mirror is selected, when absorbed power is more than
550mW realizes laser output, is realized when absorbed power is more than 1.68W and stablizes Q-switch and mode-locking operating, exports peak power
158mW。
As shown in figure 4, the detection of Q-switch and mode-locking pulse train is the number connected by fast photodiode (ET-5000)
Word oscillograph (RIGOL, DS4024).List the Q-switch and mode-locking pulse that sweep time obtains by 2ms, 500 μ s, 10 μ s and 10ns
Sequence, locked mode repetition rate are 121.9MHz, and corresponding tune Q profiled pulses width is 450 μ s, repetition rate 5.6KHz, is corresponded to
Maximum single pulse energy is 1.3nJ.Due to the presence of tune Q envelopes, the accurate measurement of mode locking pulse autocorrelator trace is affected,
We utilize formula(tmFor tested mode locking pulse rising time, trFor actual mode locking pulse rising edge
Time, tpFor photodetector rising time, toFor oscillograph rising time) it can estimate the width of mode locking pulse.Experiment
In be tested mode locking pulse rising time about 1.4ns, photodetector rising time is 35ps, utilizes to×WB=0.35-
0.4(WBFor the bandwidth of oscillograph, the bandwidth of oscillograph is 200MHz in experiment) it can t in estimating testo=1167-1333ps,
Therefore actual mode locking pulse rising time can be calculated as 426-773ps, since pulse width is approximately equal to rising time
1.25 times, therefore actual mode locking pulse width is about 533-966ps.Fig. 5 passes through spectrum analysis under being operated for continuous and Q-switch and mode-locking
Instrument (AvaSpec-NIR256-2.5TEC) measures the laser spectrum under the operating of continuous and Q-switch and mode-locking, the centre wavelength of continuous light
For 1993nm, the halfwidth of spectrum is 5nm.The centre wavelength of Q-switch and mode-locking is 1981nm, and the halfwidth of spectrum is 6nm, relatively
In continuous light spectrum, spectral drift 12nm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of full solid T m:LuScO3Q-switch and mode-locking ceramic laser, which is characterized in that the full solid T m:LuScO3Adjust Q locks
Mould ceramic laser includes：
Pumping source, for the pumping laser that generation wavelength is 795.7nm；
Condenser lens, for thoroughly, pumping laser to be focused in crystal to pumping laser height；
Tm:LuScO3Ceramic laser gain media swashs for the pumping laser of centre wavelength 795.7nm to be changed into 2 mu m wavebands
Light；
Laserresonator is used to implement the operating of 2 mu m waveband lasers；
Graphene oxide saturable absorber is transformed into pulsed light for that will export continuous light.
2. full solid T m as described in claim 1:LuScO3Q-switch and mode-locking ceramic laser, which is characterized in that described to focus on thoroughly
Mirror is placed on by two-dimentional adjustable mirror on one-dimensional translation stage.
3. full solid T m as described in claim 1:LuScO3Q-switch and mode-locking ceramic laser, which is characterized in that the Tm:
LuScO3Ceramic laser gain media is clamped in after being wrapped up with indium foil in red copper cooling fin, red copper cooling fin connection thermostatted water Xun Huan
System；
Thulium ion doping concentration is 2%, is placed on the one-dimensional translation stage of 40mm*40mm；Second plano-concave refrative mirror can by two
Mirror holder is adjusted to be placed on one-dimensional translation stage.
4. full solid T m as described in claim 1:LuScO3Q-switch and mode-locking ceramic laser, which is characterized in that described to focus on thoroughly
Mirror, focal length f=120mm；
The laserresonator is by the first plano-concave refrative mirror, the second plano-concave refrative mirror, the 3rd plano-concave refrative mirror, outgoing mirror and plane
High reflective mirror forms；
First plano-concave refrative mirror, the second plano-concave refrative mirror, the 3rd plano-concave refrative mirror concave curvature radius are 100mm, and plane is anti-
Mirror and outgoing mirror is penetrated to be fixed on 304 stainless steel columns by two-dimentional mirror holder.
5. a kind of full solid T m as described in claim 1:LuScO3The Tm of Q-switch and mode-locking ceramic laser:LuScO3Ceramic laser increases
The preparation method of beneficial medium, which is characterized in that the Tm:LuScO3Ceramic laser gain media uses solid state reaction sintering mode
It prepares, 700 DEG C of sintering temperature.
6. a kind of full solid T m as described in claim 1:LuScO3The graphene oxide saturable of Q-switch and mode-locking ceramic laser is inhaled
The preparation method of acceptor, which is characterized in that the preparation method of the graphene oxide saturable absorber includes：
The concentrated sulfuric acid and hydrogen peroxide are pressed 1:Quartz plate, is put into wherein, until quartz plate surface is no longer produced by 3 mixing after mixing
Until anger bubble, taking-up is dried, and obtains the quartz plate of hydrophilic treated；
Graphene oxide powder is placed in deionized water, when ultrasound 10 is small, centrifugal treating, the GO for preparing 0.3mg/mL is molten
Liquid；
GO solution is injected in a polystyrene square box, the quartz plate that hydrophilic treated is crossed diagonally vertically is put into box,
First quarter moon is stood, after solution is evaporated, takes out quartz plate, graphene oxide composite material is deposited on the both sides of quartz plate, graphite oxide
Prepared by alkene saturable absorber completes.
7. a kind of full solid T m described in application Claims 1 to 4 any one:LuScO3The Laser Measuring of Q-switch and mode-locking ceramic laser
Away from machine.
8. a kind of full solid T m described in application Claims 1 to 4 any one:LuScO3Q-switch and mode-locking ceramic laser it is relevant more
General Le windfinding radar.
9. a kind of full solid T m described in application Claims 1 to 4 any one:LuScO3The vapor of Q-switch and mode-locking ceramic laser
Throwing face Differential Absorption Laser Radar System.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112531450A (en) * | 2020-07-15 | 2021-03-19 | 宝鸡文理学院 | 2-micron laser diode pumped all-solid-state Tm, Ho, LLF laser |
| CN114108072A (en) * | 2020-08-28 | 2022-03-01 | 中国科学院上海光学精密机械研究所 | Rare earth ion doped GdScO3Laser crystal preparation and application thereof |
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