CN206076723U - A kind of dual wavelength tunable laser based on single pumping or double pumping action - Google Patents
A kind of dual wavelength tunable laser based on single pumping or double pumping action Download PDFInfo
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- CN206076723U CN206076723U CN201620925532.0U CN201620925532U CN206076723U CN 206076723 U CN206076723 U CN 206076723U CN 201620925532 U CN201620925532 U CN 201620925532U CN 206076723 U CN206076723 U CN 206076723U
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Abstract
The utility model discloses a kind of dual wavelength tunable laser based on single pumping or double pumping action, including：Pumping source, for producing wavelength for 780nm laser；Condenser lenses, for high to pump light 780nm saturating, 780nm pump lights are focused in crystal；First plano-concave refrative mirror, the second plano-concave refrative mirror, it is for high to 780nm saturating, high to 1895nm and 1950nm anti-；Two thang-kng end faces, using cut at Brewster angle, are polished by laser crystal；Plane mirror, for high to 1895nm and 1950nm anti-；Outgoing mirror, exports for the light part to 1895nm and 1950nm；Plano-concave reflecting mirror, enters laser crystal for the remaining 780nm laser secondary reflection to not absorbing through laser crystal.This utility model is capable of achieving dual wavelength 1895nm and 1950nm, Single wavelength 1895nm, Single wavelength 1950nm switchings and power distribution.
Description
Technical field
This utility model belongs to laser technology field, more particularly to a kind of dual wavelength based on single pumping or double pumping action is adjustable
Laser instrument.
Background technology
At present, 2 mu m waveband lasers are " eye-safe " laser, in well-known " molecular fingerprint " SPECTRAL REGION,
The fields such as environmental monitoring, optic communication, medical science, meterological, military affairs have extremely important application.
Tm,Ho:LuLiF4Crystal can produce 1895nm and 1950nm dual-wavelength lasers, and its wave band is close to 2 μm of laser, with
Other crystal phase ratios have Low threshold, it is sub- in a low voice the features such as, be particularly suitable as 2 μm of laser crystals.The dual laser can
To be applied to the fields such as material detection, laser ranging, laser radar, medical treatment, communication.Using nonlinear crystal to 1895nm and
1950nm dual-wavelength lasers are carried out and frequency, can obtain the near infrared light of 961nm.961nm laser belongs to infrared band, using front
Scape is wide, and in terms of Laser Processing, iraser is for material micro Process, for monitoring industrial machining environment safety, infrared to swash
Light applies also for laser welding, it is possible to produce more than the soldered of raw material hardness.In terms of medical treatment, the laser if
Long-pulse output (during 200ms pulsewidths), it can accomplish the effect for dispelling hair；This laser is if free-run mode output
When, it can do the treatment of the chronic obstructed lacrimal passage of ophthalmology；When the disease such as department of dermatologry color is treated, exported using pulse more, it is also possible to
Say it is to adjust Q, up to 1J, within pulsewidth can be controlled in for 10 nanoseconds, this laser instrument can be additionally used in (interior in eyes the energy per pulse
Eye) related surgical.In material context of detection, 961nm laser contains near infrared spectrum, near infrared spectrum and organic molecule
It is consistent with the uptake zone of frequencys multiplication at different levels with frequency that hydrogen group (O-H, N-H, C-H) vibrates, by scanning suction of the sample to the laser
Receipts degree, can obtain the characteristic information of organic molecule hydric group in sample, and have side using the laser analysis sample
Just it is, quickly, efficiently, accurately relatively low with cost, sample is not destroyed, chemical reagent is not consumed, the advantages of free from environmental pollution.In laser
In terms of range finding, 961nm is in human eye black light area, and relative to 1064nm laser, 961nm is less by Atmospheric Absorption, therefore has
There is good disguise, and transmission range is longer compared with 1064nm, can be applicable to laser ranging.To 1895nm and 1950nm dual wavelengths
Laser carries out the coherent radiation of the far red light that difference frequency can obtain 75 μm, i.e. 4THz.Terahertz is due to wavelength length, single
The low advantage of photon energy, has important application in actual productive life.The frequency of Terahertz is between 0.1THz-10THz
Between, between 3mm-30 μm, positioned at electric wave to the transitional region between light wave, the light wave of this wave band is penetrated corresponding wavelength
Property it is good, there is no any damage to analyte, thus optical imagery, detection and communicate in have important using value.Produce
The current method of life THZ ripples is relatively more, has electrical method and optical meanss, but all more complicated.It is main using super in optical meanss
Short pulse is produced with material effect, and system light path is complicated, and cost is very high.Will be two repetition rate identical close-spaced wavelengths poor
Frequently, it is to develop the new method for producing THz wave in recent years, the method low cost, light path are simple.
The content of the invention
The purpose of this utility model is to provide a kind of dual wavelength tunable laser based on single pumping or double pumping action to be intended to
Low threshold, high efficiency, it is simple to operate, be capable of achieving dual wavelength 1895nm and 1950nm, Single wavelength 1895nm, Single wavelength 1950nm
Three switches infrared laser, while produce for THz wave providing a kind of simple scheme.
This utility model is achieved in that the dual wavelength tunable laser based on single pumping, described based on single pumping
Dual wavelength tunable laser includes：
Pumping source, for producing the laser that wavelength is 780nm；
Condenser lenses, for high to pump light 780nm saturating, 780nm pump lights are focused in crystal；
First plano-concave refrative mirror, the second plano-concave refrative mirror, it is for high to 780nm saturating, high to 1895nm and 1950nm anti-；
Two thang-kng end faces, for being cut using Brewster's angle, are polished by laser crystal；
Plane mirror, for high to 1895nm and 1950nm anti-；
Outgoing mirror, exports for the light part to 1895nm and 1950nm, is coated with the deielectric-coating that transmitance is 1.5%；
The paths of the dual wavelength tunable laser based on single pumping are：780nm/2.1W is produced by pumping source first
Continuous light, focused in lithium lutetium fluoride crystal by condenser lenses, the first plano-concave refrative mirror, the second plano-concave refrative mirror, plane
Reflecting mirror and outgoing mirror constitute X-type borders chamber, realize dual wavelength 1895nm and 1950nm, list by adjusting outgoing mirror or so knob
Three's switching of wavelength 1895nm, Single wavelength 1950nm.
Further, the condenser lenses are placed on one-dimensional translation stage by two-dimentional adjustable mirror；First plano-concave refrative mirror leads to
Cross two-dimentional adjustable mirror holder to be fixed on 304 stainless steel columns.
Further, it is clamped in red copper cooling fin after the laser crystal indium foil parcel, red copper cooling fin connection constant temperature
Water circulation system, is placed on the one-dimensional translation stage of 40mm*40mm；Second plano-concave refrative mirror is placed on one-dimensional by two adjustable mirrors
On translation stage；Plane mirror and outgoing mirror are fixed on 304 stainless steel columns by two-dimentional mirror holder；
The condenser lenses, focal length f=120mm；
The first plano-concave refrative mirror and the second plano-concave refrative mirror, concave curvature radius f=100mm.
Further, the pumping source is the titanium-doped sapphire laser that wavelength is 780nm, and pump power is up to 2.1W；
The focal length of condenser lenses is f=120mm；First plano-concave refrative mirror, the second plano-concave refrative mirror are high to 1895nm and 1950nm anti-, instead
Rate is penetrated more than 99.9%, concave curvature radius is R=100mm；Plane mirror is coated with to 1895nm and 1950nm Gao Fanjie
Plasma membrane, its reflectance are more than 99.9%；Outgoing mirror is coated with the deielectric-coating that transmitance is 1.5% to 1895nm and 1950nm；Laser
Crystal medium is co-doped with lithium lutetium fluoride crystal for the thulium holmium of cut at Brewster angle, and wherein thulium ion doping content is 5%, holmium ion
Doping content is 0.5%.
Another object of the present utility model is a kind of the double of dual wavelength tunable laser based on single pumping of offer
The dual wavelength tunable laser of pumping, the dual wavelength tunable laser of the double pumping action are provided with for remaining 780nm pumps
Pu light carries out secondary reflection into the plano-concave reflecting mirror of crystal.
Further, the plano-concave mirror is coated with saturating deielectric-coating high to pump light 780nm, and transmitance rate is more than 95%, while
High to 1895nm and 1950nm anti-, reflectance is more than 99.9%；Concave curvature radius R=200mm.
Further, the plano-concave mirror is mounted by two adjustable mirrors and is placed on two-dimension translational platform.What this utility model was provided
Based on the dual wavelength tunable laser of single pumping or double pumping action, be capable of achieving dual wavelength 1895nm and 1950nm, Single wavelength 1895nm,
The switching of Single wavelength 1950nm, can also realize the power distribution of 1895nm and 1950nm wavelength in the case of dual wavelength.
It is this utility model Low threshold power, high conversion efficiency, simple to operate, there is provided dual laser can conduct
The generating source of 4THz coherent radiations, is applied to many fields such as material detection, laser ranging, laser radar, medical treatment, communication.This
Utility model is carried out to this 1895nm and 1950nm dual-wavelength laser using nonlinear crystal and frequency, can obtain the near of 961nm
Infrared light, 1895nm and 1950nm dual-wavelength lasers carry out the relevant spoke of the far red light that difference frequency can obtain 75 μm, i.e. 4THz
Penetrate.Concrete grammar is as follows：Dual-wavelength laser is irradiated to the suitable nonlinear material placed outside resonator cavity using focusing system
On, transit chamber is outer and frequency produces the near infrared light of 961nm, or difference frequency generation terahertz emission chamber outside, or by nonlinear material
Laser resonance intracavity is directly placed into, the near infrared light of 961nm is produced by intracavity and frequency, intracavity difference frequency produces terahertz emission,
The material of the well-formedness can be periodic Lithium metaniobate, suitable tangential KTP, LBO, BiBO, DAST, GaAs, phosphatization
Gallium etc..First plano-concave refrative mirror, the second plano-concave refrative mirror, plane mirror and outgoing mirror constitute X-type borders chamber, the lumen type it is excellent
Point can be the mould speckle that very little is realized in crystal, and threshold value is low, it is easy to accomplish Ke Er locked modes operate；Entered concave reflection simultaneously
Mirror, can be by remaining pump light secondary focusing in laser crystal, and it is lower to use photo threshold, in hgher efficiency.
As shown in fig. 6, show that the threshold power of single pump 1895nm and 1950nm dual lasers is 147mW, relative to
It is 493mW that the Slop efficiency of pump power is the corresponding outputs of 24.56%, 2.1W；Single pump 1950nm single wavelength lasers
Threshold power is 112mW, is that the corresponding outputs of 31.67%, 2.1W are 625mW relative to the Slop efficiency of pump power.It is single
The threshold power of pump 1895nm single wavelength lasers is 190mW, is 18.86%, 2.1W pair relative to the Slop efficiency of pump power
The output answered is 359mW.As shown in fig. 7, drawing single pump 1895nm and 1950nm dual lasers relative to absorption pump
The Slop efficiency of Pu power is 57.51%, and single pump 1950nm single wavelength lasers relative to the Slop efficiency of absorptive pumping power are
74.22%, single pump 1895nm single wavelength lasers are 43.93% relative to the Slop efficiency of absorptive pumping power.As shown in figure 9,
Draw double pump 1895nm and 1950nm dual laser threshold power be 110mW, relative to the Slop efficiency of pump power be
The corresponding output of 27.95%, 2.1W is 575mW；The threshold power of single pump 1950nm single wavelength lasers is 89mW, relatively
It is that the corresponding outputs of 36.02%, 2.1W are 716mW in the Slop efficiency of pump power.Single pump 1895nm single wavelength lasers
Threshold power be 160mW, relative to pump power Slop efficiency be the corresponding outputs of 23.51%, 2.1W be 450mW.
Description of the drawings
Fig. 1 is that the dual wavelength tunable laser light path based on single pumping or double pumping action that this utility model embodiment is provided is former
Reason schematic diagram.
Fig. 2 is that the laser crystal that this utility model embodiment is provided is to the absorption efficiency of 780nm wavelength pump lights
42.65%, when pump power is 2.1W, laser crystal is absorbed as power for 1W schematic diagrams.
Fig. 3 is single pump dual laser curve of spectrum schematic diagram that this utility model embodiment is provided.
Fig. 4 is single pump 1950nm single wavelength lasers curve of spectrum schematic diagram that this utility model embodiment is provided.
Fig. 5 is single pump 1895nm single wavelength lasers curve of spectrum schematic diagram that this utility model embodiment is provided.
Fig. 6 is the average work(of the corresponding output light of difference input pump power under single pumping that this utility model embodiment is provided
Rate schematic diagram.
Fig. 7 is the average work(of the corresponding output light of difference absorptive pumping power under single pumping that this utility model embodiment is provided
Rate schematic diagram.
Fig. 8 is the dual wavelength tunable laser light path of the 1895nm and 1950nm double pumping actions that this utility model embodiment is provided
Principle schematic.
Fig. 9 is the average work(of the corresponding output light of difference input pump power under the double pumping action that this utility model embodiment is provided
Rate schematic diagram.
In Fig. 1 and Fig. 8：1st, pumping source；2nd, condenser lenses；3rd, the first plano-concave refrative mirror；4th, laser crystal；5th, the second plano-concave
Refrative mirror；6th, plane high reflective mirror；7th, outgoing mirror；8th, concave mirror.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this practicality
It is new, it is not used to limit this utility model.
Below in conjunction with the accompanying drawings structure of the present utility model is explained in detail.
As shown in figure 1, this utility model embodiment is included based on the dual wavelength tunable laser of single pumping：One pumping
1, one, source condenser lenses 2, laser crystal 4, the first plano-concave refrative mirror 3,5,6 and of plane high reflective mirror of the second plano-concave refrative mirror
One outgoing mirror 7 is combined using X-type laserresonator.
The design parameter of element is as follows：Pumping source 1 is the titanium-doped sapphire laser that wavelength is 780nm, and pump power is most
A height of 2.1W；The focal length of condenser lenses 2 is f=120mm；First plano-concave refrative mirror 3, the second plano-concave refrative mirror 5 are to pump light
780nm is high thoroughly, and its transmitance is more than 95%, its reflectance deielectric-coating more than 99.9% anti-to 1895nm and 1950nm height, recessed
Curvature radius R=100mm；Laser crystal 4 is Tm, Ho:LuLiF4Crystal, is cut using Brewster's angle, to two
Thang-kng end face is polished, and the dopant concentration of thulium (Tm) is 5%, and the dopant concentration of holmium (Ho) is 0.5%, size 3*3*8mm；It is high
Reflecting mirror 6 is coated with high to 1895nm and 1950nm anti-, deielectric-coating of its reflectance more than 99.9%；Outgoing mirror 7 to 1895nm and
1950nm is coated with the deielectric-coating that transmitance is 1.5%.
Concrete installation requirement is as follows：Condenser lenses 2 are placed on one-dimensional translation stage by two-dimentional adjustable mirror, size can be with
Just choose, range ± 12.5mm.First plano-concave refrative mirror 3 is fixed on 304 stainless steel columns by two-dimentional adjustable mirror holder.Laser
Crystal 4 is carried out to red copper crystal folder using circulation in experimentation with being clamped in red copper cooling fin after indium foil parcel
Cooling, water temperature maintain 14 DEG C or so, in order to avoid damage to laser medium.Red copper cooling fin is placed on 40mm*40mm
One-dimensional translation stage on, polishing crystal end face and incident pump light beam angle are Brewster's angle.Second plano-concave refrative mirror 5 passes through
Two-dimentional adjustable mirror is placed on one-dimensional translation stage, and size at will can be chosen, range ± 12.5mm.High reflection mirror 6 and outgoing mirror 7 are logical
Cross two-dimentional mirror holder to be fixed on 304 stainless steel columns.
Laser instrument adjusts as follows：Whole elements are arranged on optical table, and whole laser generation light path is away from optical table
Highly it is 90.5mm, the overall length of laser oscillation cavity is 898mm.Lumen type uses X-type folding cavity configuration, wherein condenser lenses 2
Centre distance with laser crystal is 120mm or so, and the first plano-concave refrative mirror 3 is that 55mm is left with the centre distance of laser crystal
The distance of the right side, the first plano-concave refrative mirror 3 and the second plano-concave refrative mirror 5 is 110mm or so, and high reflective mirror 6 is away from the second plano-concave refrative mirror 5
Distance be 405mm or so, the distance of outgoing mirror 7 and the first plano-concave refrative mirror 3 is 380mm or so, two-arm and pump light angle
Acute angle at 15 degree or so.By adjusting each light path element so as to form laser generation so as to export laser in intracavity, and then
Optimization light path makes its power maximum, and the knob in last Spin Control outgoing mirror left rotation and right rotation direction can realize dual wavelength 1895nm
Switch with the three of 1950nm, Single wavelength 1895nm, Single wavelength 1950nm, also can realize in the case of dual wavelength 1895nm and
The power distribution of 1950nm wavelength.
As shown in figure 8, adding on the basis of the dual wavelength Tunable Laser Technology scheme of the mono- pumpings of 1895nm and 1950nm
Upper plano-concave mirror 8 constitutes the dual wavelength tunable laser of double pumping action.
The design parameter of element is as follows：The dual wavelength tunable laser parameter of the mono- pumpings of 1895nm and 1950nm is all constant,
Plano-concave mirror 8 is coated with anti-deielectric-coating high to pump light 780nm, and reflectance is more than 99.99%.
Concrete installation requirement is as follows：The dual wavelength tunable laser of the mono- pumpings of 1895nm and 1950nm installs all constant, puts down
Concave mirror 8 is mounted by two adjustable mirrors and is placed on two-dimension translational platform, and stroke ± 12.5mm, size at will can choose.
Laser instrument adjusts as follows：The optimization of the dual wavelength Tunable Laser Technology scheme of the mono- pumpings of 1895nm and 1950nm
On the basis of light path, the focus for adjusting the light that plano-concave mirror 8 is passed through concave reflection incides another polished end faces of crystal, light beam with
Original pump beam overlaps, and by the left and right and the pitching that adjust two-dimentional mirror holder, is allowed to power and reaches highest.Last Spin Control is defeated
The knob in appearance left rotation and right rotation direction can realize dual wavelength 1895nm and 1950nm, Single wavelength 1895nm, Single wavelength 1950nm
Three switching, can also realize the power distribution of 1895nm and 1950nm wavelength in the case of dual wavelength.
Application principle of the present utility model is explained in detail with reference to specific embodiment.
Embodiment of the present utility model 1 is as shown in figure 1, by pumping source 1, condenser lenses 2, laser crystal 4, the first plano-concave folding
Folded mirror 3, the second plano-concave refrative mirror 5, plane high reflective mirror 6 and outgoing mirror 7 are combined using X-type laserresonator.Its feature exists
In laser crystal 4 be Tm, Ho:LuLiF4Crystal, is cut using Brewster's angle, and two thang-kng end faces are polished；
First plano-concave refrative mirror 3, the second plano-concave refrative mirror 5 are coated with high to pump light 780nm saturating, anti-to 1895nm and 1950nm height Jie
Plasma membrane；High reflection mirror 6 is coated with anti-deielectric-coating high to 1895nm and 1950nm；Outgoing mirror 7 is coated with portion to 1895nm and 1950nm
Divide the deielectric-coating for passing through.So as to obtain while 1895nm and 1950nm or single output.
Pumping source 1 can be titanium-doped sapphire laser, or wavelength partly the leading for 780nm that wavelength is 780nm
Body laser or the semiconductor laser of fiber coupling output, pump mode is end pumping.
The spectral curve that light path can draw Fig. 2, Fig. 3, Fig. 4 is adjusted by the control method of embodiment 1, by changing
Pump power size changes the size of different wave length power.As shown in fig. 6, drawing single pump 1895nm and 1950nm dual-wavelength lasers
The threshold power of device is 147mW, relative to the Slop efficiency of pump power for the corresponding outputs of 24.56%, 2.1W is
493mW；The threshold power of single pump 1950nm single wavelength lasers is 112mW, relative to the Slop efficiency of pump power is
The corresponding output of 31.67%, 2.1W is 625mW.The threshold power of single pump 1895nm single wavelength lasers be 190mW, phase
For the Slop efficiency of pump power is that the corresponding outputs of 18.86%, 2.1W are 359mW.As shown in fig. 7, drawing single pump
1895nm and 1950nm dual lasers are 57.51% relative to the Slop efficiency of absorptive pumping power, single pump 1950nm unicasts
Long laser instrument is 74.22% relative to the Slop efficiency of absorptive pumping power, and single pump 1895nm single wavelength lasers are relative to absorption
The Slop efficiency of pump power is 43.93%.
Embodiment 2：
Embodiment of the present utility model 2 is as shown in figure 8, by pumping source 1, condenser lenses 2, laser crystal 4, the first plano-concave folding
Folded mirror 3, the second plano-concave refrative mirror 5, plane high reflective mirror 6,7 peaceful concave mirror 8 of outgoing mirror are combined.Simply in the base of embodiment 1
Plano-concave mirror 8 is added on plinth, the component parameter in embodiment 1 is constant, plano-concave mirror 8 is coated with high to pump light 780nm anti-, its reflectance
Deielectric-coating more than 99.9%, concave curvature radius R=200mm；
Pumping source 1 can be titanium-doped sapphire laser, or wavelength partly the leading for 780nm that wavelength is 780nm
Body laser or the semiconductor laser of fiber coupling output, pump mode is end pumping.
The spectral curve that light path can draw Fig. 2, Fig. 3, Fig. 4 is adjusted by the control method of embodiment 1, with reference to enforcement
Example 2 can improve absorption efficiency of the laser crystal to 780nm pump lights, and then reduce out photo threshold power, higher output light
Slop efficiency.Change the size of different wave length power by changing pump power size.As shown in figure 9, draw double pump 1895nm and
The threshold power of 1950nm dual lasers is 110mW, is 27.95%, 2.1W correspondences relative to the Slop efficiency of pump power
Output be 575mW；The threshold power of single pump 1950nm single wavelength lasers is 89mW, relative to the oblique effect of pump power
It is 716mW that rate is the corresponding outputs of 36.02%, 2.1W.The threshold power of single pump 1895nm single wavelength lasers is
160mW, is that the corresponding outputs of 23.51%, 2.1W are 450mW relative to the Slop efficiency of pump power.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (7)
1. a kind of dual wavelength tunable laser based on single pumping, it is characterised in that the dual wavelength based on single pumping is adjustable
Laser instrument includes：
For producing the pumping source that wavelength is 780nm laser；
For to the high saturating condenser lenses of pump light 780nm, 780nm pump lights being focused in crystal；
For high to 780nm saturating, to high the first anti-plano-concave refrative mirrors of 1895nm and 1950nm, the second plano-concave refrative mirror；
For being cut using Brewster's angle, the laser crystal are polished by two thang-kng end faces；
For to the high anti-plane mirrors of 1895nm and 1950nm；
Export for the light part to 1895nm and 1950nm, be coated with the outgoing mirror of the deielectric-coating that transmitance is 1.5%.
2. the dual wavelength tunable laser based on single pumping as claimed in claim 1, it is characterised in that the condenser lenses lead to
Cross two-dimentional adjustable mirror to be placed on one-dimensional translation stage；First plano-concave refrative mirror is fixed on 304 rustless steels by two-dimentional adjustable mirror holder
On column.
3. the dual wavelength tunable laser based on single pumping as claimed in claim 1, it is characterised in that the laser crystal is used
It is clamped in red copper cooling fin after indium foil parcel, red copper cooling fin connection constant temperature water circulation system is placed on the one of 40mm*40mm
On dimension translation stage；Second plano-concave refrative mirror is placed on one-dimensional translation stage by two adjustable mirrors；Plane mirror and outgoing mirror are logical
Cross two-dimentional mirror holder to be fixed on 304 stainless steel columns；
The condenser lenses, focal length f=120mm；
The first plano-concave refrative mirror and the second plano-concave refrative mirror, concave curvature radius f=100mm.
4. the dual wavelength tunable laser based on single pumping as claimed in claim 1, it is characterised in that the pumping source is ripple
The titanium-doped sapphire laser of a length of 780nm, pump power are up to 2.1W；The focal length of condenser lenses is f=120mm；First
Plano-concave refrative mirror, the second plano-concave refrative mirror concave curvature radius are R=100mm；Plane mirror be coated with to 1895nm and
The high inverse medium films of 1950nm, its reflectance are more than 99.9%；It is 1.5% that outgoing mirror is coated with transmitance to 1895nm and 1950nm
Deielectric-coating；Laser crystal medium is co-doped with lithium lutetium fluoride crystal for the thulium holmium of cut at Brewster angle.
5. it is a kind of as claimed in claim 1 based on single pumping dual wavelength tunable laser double pumping action dual wavelength adjustable laser
Device, it is characterised in that the dual wavelength tunable laser of the double pumping action is provided with for carrying out two to remaining 780nm pump lights
Secondary reflection enters the plano-concave reflecting mirror of crystal.
6. the dual wavelength tunable laser of double pumping action as claimed in claim 5, it is characterised in that the plano-concave mirror is coated with to pump
The high saturating deielectric-coating of Pu light 780nm, it is high to 1895nm and 1950nm anti-；Concave curvature radius R=200mm.
7. the dual wavelength tunable laser of double pumping action as claimed in claim 5, it is characterised in that the plano-concave mirror passes through two
Adjustable mirror is mounted and is placed on two-dimension translational platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925532.0U CN206076723U (en) | 2016-08-23 | 2016-08-23 | A kind of dual wavelength tunable laser based on single pumping or double pumping action |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925532.0U CN206076723U (en) | 2016-08-23 | 2016-08-23 | A kind of dual wavelength tunable laser based on single pumping or double pumping action |
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| CN206076723U true CN206076723U (en) | 2017-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364920A (en) * | 2019-07-22 | 2019-10-22 | 深圳大学 | One kind mixing thulium blocks of solid laser |
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2016
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364920A (en) * | 2019-07-22 | 2019-10-22 | 深圳大学 | One kind mixing thulium blocks of solid laser |
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