CN105071217B - It is a kind of from frequency multiplication all-solid-state yellow laser - Google Patents
It is a kind of from frequency multiplication all-solid-state yellow laser Download PDFInfo
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Abstract
The present invention relates to one kind from frequency multiplication all-solid-state yellow laser.The laser includes driving source, focusing system, self-frequency-doubling crystal, laserresonator, wherein, the self-frequency-doubling crystal is ytterbium ion doping line borate oxygen rare earth salt crystal, is cut along the maximum direction of crystal negative principal planes effective nonlinear coefficient；The driving source is 900 980nm light source；Described laserresonator by input hysteroscope and output cavity microscope group into, there is deielectric-coating respectively to suppress 1020 1080nm wave band starting of oscillations in input hysteroscope and output hysteroscope, excitation light is injected into the self-frequency-doubling crystal by collimation focusing and by inputting hysteroscope, the self-frequency-doubling crystal absorbs excitation light energy amount and fundamental frequency light is produced in laserresonator, fundamental frequency light carries out selection wavelength frequency multiplication by self-frequency-doubling crystal, realizes that 570nm~590nm gold-tinteds laser is exported.The laser has the advantages such as power output is high, simple in construction, compact, cost is low, thermal adaptability is strong.
Description
Technical field
The present invention relates to a kind of self-frequency doubling yellow laser, belong to laser technology field, be related to laser and nonlinear crystal
Device.
Background technology
Gold-tinted refers to the light that wavelength is between 570nm to 590nm, and the wave band belongs to visibility region, in medical treatment, amusement, army
There are important application and demand in the fields such as thing, environmental monitoring.The technology bag of all-solid-state yellow particularly yellow laser is realized at present
Include and realized after non-linear and frequency, Raman frequency shift after frequency multiplication or laser freuqency doubling by Raman frequency shift.It is wherein non-linear to be with frequency technology
Using 1.06 μm of neodymium ion doped laser material and 1.3 μm transmittings, realized by nonlinear optical crystal outside chamber and frequency or
Intracavitary and the form of frequency realize that gold-tinted is exported, either outside chamber or intracavitary and frequency mode, be related to the laser cavity structure of complexity
With plated film mode, meanwhile, at least need two pieces of crystal：Laser crystal and frequency-doubling crystal are realized and frequency process.After Raman frequency shift
Frequency doubling technology mainly utilizes 1.18 μm of raman lasers of Raman frequency shift media implementation by neodymium laser after 1.06 μm of Laser emissions,
Realize that gold-tinted is exported by frequency multiplication afterwards, after laser freuqency doubling Raman frequency shifting techniques be by neodymium laser after 1.06 μm of Laser emissions
532nm laser is realized using frequency doubling technology, realizes that gold-tinted is exported using the Raman frequency shift of Raman frequency shift medium afterwards.Raman frequency shift
Inherently a kind of third-order nonlinear optical processes of technology, required light intensity is higher, while either the frequency multiplication after Raman frequency shift is also
It is the Raman after laser freuqency doubling, its structure and design are complex.Blue light pumping, which is emitted through, using dysprosium ion realizes gold-tinted
Output is also the important technology for beginning one's study and obtaining at present gold-tinted, and blue light source that can be practical includes double-frequency laser and blue light half
Conductor laser, double-frequency laser need to use structure and the complicated Optical Maser System of design, and cost is higher, is unfavorable for commercial application；
And blue semiconductor laser such as GaN etc., costly, temperature stability etc. is also difficult to the demand up to gold-tinted industrialization to price.
Patent CN101562311A discloses a kind of kalium titanyl arsenate (KTA) crystal solid-state self-frequency doubling yellow Raman laser, is
A kind of Yellow light laser based on Ramam effect, including laser diode pumping source, resonator, temperature is carried out by cooling device to it
Degree control, is substituted using one piece of KTA crystal and gain medium is sequentially placed in Raman crystal and frequency-doubling crystal, resonator, Q is adjusted
Device and KTA crystal；Realize that the Raman conversion of 1.06 microns of fundamental frequency lights obtains the Raman light near 1.14 microns by KTA crystal,
Meanwhile, the KTA crystal can also realize that the frequency multiplication of Raman light obtains the gold-tinted near 0.57 micron.Except power needed for Ramam effect
Density is high, be made up of two pieces of laser and nonlinear crystal, and its structure design is complex, meanwhile, KTA crystal need to use flux growth metrhod
Growth, growth cycle is long, and cost is high.
Self-frequency-doubling laser have it is simple in construction, stably, the advantage such as compact, power output is high.At present, tradition swashs from frequency multiplication
Light device is based primarily upon on neodymium ion doped self-frequency-doubling crystal, in particular with laser of the neodymium ion at 1.06 μm -1.09 μm
Realize that frequency multiplication produces green glow output, but neodymium ion emission peak is 1.06 μm, 1.3 μm and 0.9 μm three wave bands, no matter any wave band
It is difficult to direct frequency doubling and reaches yellow range.Although can also realize that gold-tinted is exported with frequency by 1.06 μm and 1.3 μm, it is somebody's turn to do and frequency
Process is launched while being related to 1.06 μm and 1.3 μm of two wave bands, and the competition of two wave bands can cause laser output occurs unstable
And design is complicated.
Ytterbium ion doping crystal can be realized from the spectral line of emission wider 950-1100nm, and can realize laser from frequency multiplication process
Frequency multiplication, reach near yellowish green optical band (555nm).The most long ytterbium ion doping yttrium aluminum borate obtained at present is yellow from frequency multiplication
Green glow is 569nm (Optics Communications 207,315,2002), and this wave band needs complicated tuning process
It can realize, laser cavity structure is complicated；Meanwhile, tetraborate aluminium yttrium crystal need to be grown with flux growth metrhod, and growth cycle is long, it is difficult to be met
Mass production demand.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of from frequency multiplication all-solid-state yellow laser, particularly frequency control
System realizes 570nm~590nm ytterbium ion doping self-frequency doubling yellow laser.
Summary of the invention：Core technology of the present invention is to be realized by plated film from 1140-1180nm wave band of laser starting of oscillations, control hair
Radio frequency rate；Meanwhile, by the change of self-frequency-doubling crystal's ytterbium ion doping line borate oxygen rare-earth salts crystal-cut angle, selection can be real
Existing frequency doubling yellow is effectively exported, so as to obtain Yellow light laser.
Technical scheme is as follows：
One kind from frequency multiplication all-solid-state yellow laser, including driving source, focusing system, self-frequency-doubling crystal, laserresonator,
Wherein, the self-frequency-doubling crystal is ytterbium ion doping line borate oxygen rare earth salt crystal；
Self-frequency-doubling crystal's optical direction is the phase matched direction from frequency multiplication, i.e., along the effective non-thread of crystal negative principal planes
The direction cutting of property coefficient maximum；
The driving source is 900-980nm light source；
Described laserresonator is by input hysteroscope with output cavity microscope group into input in hysteroscope and output hysteroscope has Jie respectively
Plasma membrane is realized from 1140-1180nm wave band of laser starting of oscillations with suppressing 1020-1080nm wave band starting of oscillations；Export hysteroscope on also have pair
The deielectric-coating of driving source light source high reflection, to increase effective absorption of the crystal for excitation light；
The self-frequency doubling laser crystal is located between incident hysteroscope and output hysteroscope；
Laser generation and nonlinear frequency conversion are produced by self-frequency doubling laser crystal, the excitation light of driving source outgoing is passed through
The collimation focusing of the focusing system is crossed, and is injected into by inputting hysteroscope in the self-frequency-doubling crystal, the self-frequency-doubling crystal
Absorb excitation light energy amount and fundamental frequency light is produced in the laserresonator, fundamental frequency light utilizes the frequency-doubled effect of the self-frequency-doubling crystal
Frequency multiplication is carried out, realizes that 570nm~590nm gold-tinteds laser is exported.
According to currently preferred, the driving source is ti sapphire laser or laser diode laser；It is further excellent
Choosing, the driving source is launch wavelength 970-980nm laser diode laser.
According to the present invention, the input hysteroscope is that input mirror is plated with deielectric-coating A and formed, or in the self-frequency-doubling crystal
Light incident side be plated with deielectric-coating A and formed；Deielectric-coating of the deielectric-coating A at least to 900-1100nm high transmissions；
The output hysteroscope is that outgoing mirror is plated with deielectric-coating B and formed, or in the light exit side of the self-frequency-doubling crystal
Deielectric-coating B is plated with to be formed；The deielectric-coating B is at least to 980-1100nm high transmissions, the medium to 900-980nm high reflections
Film；
To realize that yellow band is effectively exported, the loss to encouraging light is reduced, input mirror also needs to be plated with to 1100-1200nm
With the deielectric-coating of 555nm-600nm high reflections, outgoing mirror is plated with to 1100-1200nm high reflections and high anti-to 555nm-600nm
The deielectric-coating penetrated；Namely it is further preferred that deielectric-coating A described above is to 900-1100nm high transmissions and to 1100-
The deielectric-coating of 1200nm and 555nm-600nm high reflections；The deielectric-coating B is to 980-1100nm high transmissions, to 900-980nm
High reflection and to the deielectric-coating of 1100-1200nm and 555nm-600nm high reflections.
In the laserresonator design of the present invention, to reduce the loss to excitation light (near 900nm) and suppressing 1020-
1080nm wave band starting of oscillations, need to be plated with the deielectric-coating to the wave band high transmission on resonator, be that incident mirror optical direction is plated with
To the deielectric-coating of 900-1100nm high transmissions, outgoing mirror plates the deielectric-coating of 980-1100nm high transmissions；To realize that yellow band has
Effect output, input mirror also needs to be plated with the deielectric-coating to 1100-1200nm and 555nm-600nm high reflections, and outgoing mirror is plated with pair
1100-1200nm high reflections and to the deielectric-coating of 555nm-600nm high reflections；For effective suction of the increase crystal for excitation light
Receive, outgoing mirror is plated with the deielectric-coating to 900-980nm high reflections.
According to the present invention, one is preferred embodiment：
A kind of self-frequency doubling yellow laser, including driving source, focusing system, the laser resonance being arranged in order along optical path direction
Chamber, self-frequency-doubling crystal is in laser resonance intracavitary；Wherein, the self-frequency-doubling crystal is that ytterbium ion doping line borate oxygen rare-earth salts is brilliant
Body, laserresonator is made up of plating deielectric-coating A input mirror and plating deielectric-coating B outgoing mirror, and the input mirror is coated with to 900-
1100nm high transmissions and to the deielectric-coating A of 1100-1200nm and 555nm-600nm high reflections, outgoing mirror is coated with to 980-
1100nm high transmissions, to 900-980nm high reflections and to the deielectric-coating B of 1100-1200nm and 555nm-600nm high reflections.
According to the present invention, another is preferred embodiment：
A kind of self-frequency doubling yellow laser, including driving source, focusing system, the laser resonance being arranged in order along optical path direction
Chamber, self-frequency-doubling crystal；Wherein, the self-frequency-doubling crystal is ytterbium ion doping line borate oxygen rare earth salt crystal, in self-frequency-doubling crystal
Incident light end be coated with deielectric-coating A, emergent light end is coated with deielectric-coating B, the deielectric-coating A and deielectric-coating B and forms described laser
Resonator.The deielectric-coating A is to 900-1100nm high transmissions and to Jie of 1100-1200nm and 555nm-600nm high reflections
Plasma membrane；The deielectric-coating B is to 980-1100nm high transmissions, to 900-980nm high reflections and to 1100-1200nm and 555nm-
The deielectric-coating of 600nm high reflections.The laser is also referred to as microplate Yellow light laser.
According to the present invention, the ytterbium ion doping line borate oxygen rare earth salt crystal is selected from the borate doped calcium oxygen yttrium of ytterbium, ytterbium and mixed
One kind in miscellaneous line borate oxygen lanthanum, the borate doped calcium oxygen gadolinium of ytterbium, or the borate doped calcium oxygen yttrium of ytterbium, the borate doped calcium oxygen of ytterbium
2 kinds in the borate doped calcium oxygen gadolinium of lanthanum, ytterbium or 3 kinds of mixed crystal formed.
According to the present invention, the ytterbium ion doping concentration of the ytterbium ion doping line borate oxygen rare earth salt crystal for 1%~
50%, preferably 15%~30%.
According to the present invention, self-frequency-doubling crystal's light pass surface is cylinder, rectangle or other shapes, thang-kng mirror polish and is plated with
Deielectric-coating to oscillation light and frequency doubled light high transmission or not plated film, self-frequency-doubling crystal's optical direction length is 0.5mm~50mm, root
Depending on specification according to specific laser, 4~20mm of crystal optical direction length preferably.Further preferred crystal optical direction is long
Spend 8~15mm.
According to the present invention, self-frequency-doubling crystal is negative principal planes effective nonlinear coefficient along the cutting of optimum phase matching direction
Maximum direction.The direction can be that 1064nm lasers are determined with optical maser wavelength, self-frequency-doubling crystal of the present invention, optimum phase
With direction be the major axes orientation (Z axis) maximum with crystal refractive index be 120 ° of ± 10 ° of scopes and with the crystal refractive index master of minimum
Direction of principal axis (X-axis) is-(40 ° ± 10 °) scope.The angle is to be directed to direction of the gold-tinted from frequency multiplication, and the effect of generation is only can be real
Existing gold-tinted 570-590nm from frequency multiplication.
Focusing system of the present invention is by single or multiple convex lens groups into its focal length is according to particular condition in use
Fixed, focal length preferably is 1~10cm.It can refer to prior art.
The embodiment party of the present invention that hysteroscope is plated on to self-frequency-doubling crystal's light pass surface (plating deielectric-coating A, deielectric-coating B in two ends)
Formula, forms microplate Yellow light laser.
Term is explained：
Above-mentioned high reflection refers to be more than 99% to the reflectivity of specific wavelength or wave band incident light.
Above-mentioned high transmission refers to be more than 99% to the transmitance of specific wavelength or band of light.
Compared with existing Yellow light laser, beneficial effects of the present invention：
1st, the basis of self-frequency-doubling laser process is the self-frequency-doubling crystal for integrating laser and frequency-doubled effect, and brilliant from frequency multiplication
Body research and development it is also contemplated that cost with preparation it is easy, be otherwise difficult to meet mass production demand.Therefore, in self-frequency doubling yellow
When the design and development of laser, in addition it is also necessary to consider the growing method of self-frequency-doubling crystal, such as flux growth metrhod grows the week of crystal
Phase is long, and cost is high；And method of crystal growth by crystal pulling can obtain large-size crystals in a short time, self-frequency-doubling crystal can be correspondingly reduced
Cost.The ytterbium ion doping line borate oxonium salt self-frequency-doubling crystal that the present invention is used can use Czochralski grown, can obtain in a short time
Large-size crystals are obtained, production difficulty and production cost is reduced.
2nd, the ytterbium ion line borate oxygen rare earth salt crystal spectral line of emission is wide, and the postiive gain from 950nm to 1180nm can be achieved, but
Laser process is that the maximum wave band starting of oscillation first of gain realizes that laser is exported, and broadband transmitting can not realize self-frequency doubling yellow.This
Inventor has been surprisingly found that control tranmitting frequency is to realize the key of gold-tinted output, and then passes through the skills such as plated film by numerous studies
Art means are realized from 1080-1150nm wave band of laser starting of oscillations；Meanwhile, pass through self-frequency-doubling crystal's ytterbium ion doping line borate oxygen rare earth
The change of salt crystal cutting angle, selects achievable frequency doubling yellow effectively to export, so as to obtain Yellow light laser.
3rd, self-frequency doubling yellow laser of the invention is to use to integrate laser and the ytterbium ion doping boron of frequency-doubled effect
Sour calcium oxonium salt self-frequency-doubling crystal, selects to realize the laser of gold-tinted by frequency.In structure, the existing Yellow light laser of breakthrough
The characteristics of at least needing two pieces of (or even polylith) crystal, with it is simple in construction, stably, the advantage such as compact, small volume；Also reduce
Scheduling and planning and difficulty of processing, it is easy to debug, it is ensured that the uniformity in production process, it is easy to which mass grows；In laser mistake
Cheng Shang, breaches existing laser by complicated and frequency or Ramam effect process, with laser threshold it is low, be easily achieved etc. it is excellent
Gesture.
Brief description of the drawings
Fig. 1 is the structural representation of the self-frequency doubling yellow laser of embodiment 1.Wherein：1 is driving source；2 be Laser Focusing system
System, the light that driving source is sent is focused in self-frequency-doubling crystal；3 be incident mirror, is plated with to 900-1100nm high transmissions, 1100-
The deielectric-coating of 1200nm and 555nm-600nm high reflections；4 be self-frequency-doubling crystal, along the phase that effective nonlinear coefficient is maximum
With direction cutting, the deielectric-coating to excitation light, oscillation light and frequency doubled light high transmission is coated with；5 be outgoing mirror, is plated with to 900-
980nm and 1100-1200nm high reflections and to the deielectric-coating of 980-1100nm high transmissions and 555-600nm high transmissions；6 from frequency multiplication
Gold-tinted is exported.
Fig. 2 is the self-frequency doubling yellow laser device laser output wavelength collection of illustrative plates of embodiment 1；Abscissa is wavelength (nm), indulges and sits
Mark is intensity (arbitrary unit).
Fig. 3 is the microchip structural representation of the self-frequency doubling yellow laser of embodiment 6.Wherein, 7 be that self-frequency-doubling crystal is incident
Face is plated with the deielectric-coating to 900-1100nm high transmissions, 1100-1200nm and 555nm-600nm high reflections；8 be self-frequency-doubling crystal
Exit facet is plated with to 900-980nm and 1100-1200nm high reflections and to 980-1100nm high transmissions and 555-600nm high transmissions
Deielectric-coating.
Embodiment
The present invention will be further described with reference to the accompanying drawings and examples, but not limited to this.
Embodiment 1：Realize the self-frequency doubling yellow laser of 570nm yellow lasers output
Structure is as shown in figure 1, by driving source 1, laser focusing system 2, input mirror 3, the borate doped calcium of self-frequency-doubling crystal's ytterbium
Oxygen yttrium crystal 4 and outgoing mirror 5 are formed along the arrangement of light path order.
Driving source 1 is the laser diode that launch wavelength is 976nm, and laser focusing system 2 is that 2 focal lengths are the poly- of 2cm
Jiao Jing, input mirror 3 is to be plated with average mirror, and thang-kng end face to 900-1100nm high transmissions, 1100-1200nm and 555nm-
The deielectric-coating of 600nm high reflections；
The ytterbium ion doping concentration of the borate doped calcium oxygen yttrium crystal 4 of ytterbium be 20%, it is effective along 1140nm by direction
The maximum phase matched direction cutting of nonlinear factor, length be 8mm, thang-kng mirror polish and be plated with to 900-1200nm and
555nm-600nm high transmission deielectric-coating；Cutting angle is：With Z axis into (120 ° ± 1 °), with X-axis into-(38 ° ± 2 °).
The outgoing mirror 5 is plated with to 900-980nm and 1100-1200nm high reflections and to 980-1100nm high transmissions, right
The deielectric-coating of 555-600nm high transmissions.
Driving source 1 is opened, exciting power is increased, the output of 570nm yellow lasers can be achieved, output wavelength is as shown in Figure 2.
Embodiment 2
As described in Example 1, except that driving source 3 is ti sapphire laser, launch wavelength is 900nm, ytterbium doping
Line borate oxygen yttrium crystal length is 20mm, cutting angle：With Z axis into (120 ± 1 °), with X-axis into-(34 ° ± 2 °), focusing system
It is made up of focal length for 10cm and 5cm two convex lens.It is accomplished that the yellow laser that wavelength is 590nm is exported
Embodiment 3
As described in Example 1, except that self-frequency-doubling crystal is the borate doped calcium oxygen gadolinium crystal of ytterbium, ytterbium ion doping is dense
Spend for 1%.Crystal optical direction is the maximum phase matched direction of 1180nm effective nonlinear coefficients, i.e. cutting angle is and Z
Axle is accomplished that the yellow laser that wavelength is 580nm is exported into (120 ° ± 1 °), with X-axis into-(46 ° ± 2 °).
Embodiment 4
As described in Example 1, except that self-frequency-doubling crystal is the borate doped calcium oxygen lanthanum crystal of ytterbium, ytterbium ion doping is dense
Spend for 30%, crystal length is 4mm, surface not plated film, crystal optical direction is the maximum phase of 1150nm effective nonlinear coefficients
Position matching direction is that cutting angle is：With Z axis into (125 ± 1 °), with X-axis into-(38 ° ± 2 °), it is 575nm to be accomplished that wavelength
Yellow laser is exported.
Embodiment 5
As described in Example 1, except that self-frequency-doubling crystal is the borate doped calcium oxygen gadolinium of ytterbium and the borate doped calcium oxygen of ytterbium
The mixed crystal of yttrium, ytterbium ion doping concentration is 30%, and crystal length is 15mm.
Embodiment 6, microchip self-frequency doubling yellow laser, structure are as shown in Figure 3.
The driving source 1 that is arranged in order along optical path direction, focusing system 2, self-frequency-doubling crystal 4；Wherein, the self-frequency-doubling crystal
4 be ytterbium ion doping line borate oxygen yttrium crystal, ytterbium ion doping concentration is 20%, by direction along the effective nonlinear systems of 1140nm
The maximum phase matched direction cutting of number, length are 10mm；Cutting angle be with Z axis into-(120 ° ± 10 °) and with X-axis into-
(40°±10°)。
Deielectric-coating 7 is coated with the incident light end of self-frequency-doubling crystal, emergent light end is coated with deielectric-coating 8, and the deielectric-coating 7 is with being situated between
The formation laserresonator of plasma membrane 8.The deielectric-coating 7 is to 900-1100nm high transmissions and to 1100-1200nm and 555nm-
The deielectric-coating of 600nm high reflections；The deielectric-coating 8 is to 980-1100nm high transmissions, to 900-980nm high reflections and right
The deielectric-coating of 1100-1200nm and 555nm-600nm high reflections.Driving source 1 is the laser diode that launch wavelength is 976nm,
Laser focusing system 2 is the focus lamp that 2 focal lengths are 2cm.Driving source 1 is opened, exciting power is increased, 570nm yellow can be achieved
Laser is exported.
Claims (14)
1. it is a kind of from frequency multiplication all-solid-state yellow laser, including driving source, focusing system, self-frequency-doubling crystal, laserresonator, its
In, the self-frequency-doubling crystal is ytterbium ion doping line borate oxygen rare earth salt crystal；
Self-frequency-doubling crystal's optical direction is the phase matched direction from frequency multiplication, i.e., along the effective nonlinear system of crystal negative principal planes
The direction cutting of number maximum；
The driving source is 900-980nm light source；
Described laserresonator is by input hysteroscope with output cavity microscope group into input in hysteroscope and output hysteroscope has deielectric-coating respectively
To suppress 1020-1080 nm wave band starting of oscillations, realize from 1140-1180nm wave band of laser starting of oscillations；Export in hysteroscope and also have to excitation
The deielectric-coating of source light source high reflection, to increase effective absorption of the crystal for excitation light；
The self-frequency doubling laser crystal is located between incident hysteroscope and output hysteroscope；
Laser generation and nonlinear frequency conversion are produced by self-frequency doubling laser crystal, the excitation light of driving source outgoing is passed through into institute
The collimation focusing of focusing system is stated, and is injected into by inputting hysteroscope in the self-frequency-doubling crystal, the self-frequency-doubling crystal absorbs
Excitation light energy amount produces fundamental frequency light in the laserresonator, and fundamental frequency light is carried out using the frequency-doubled effect of the self-frequency-doubling crystal
Frequency multiplication, realizes that 570nm ~ 590nm gold-tinteds laser is exported.
2. it is as claimed in claim 1 from frequency multiplication all-solid-state yellow laser, it is characterised in that the driving source swashs for Ti∶Sapphire laser
Light device or laser diode laser.
3. it is as claimed in claim 1 from frequency multiplication all-solid-state yellow laser, it is characterised in that the driving source is launch wavelength
970-980nm laser diode laser.
4. it is as claimed in claim 1 from frequency multiplication all-solid-state yellow laser, it is characterised in that the input hysteroscope is input mirror
It is plated with deielectric-coating A to be formed, or is plated with deielectric-coating A in the light incident side of the self-frequency-doubling crystal and is formed；The deielectric-coating A is extremely
The rare deielectric-coating to 900-1100nm high transmissions.
5. it is as claimed in claim 1 from frequency multiplication all-solid-state yellow laser, it is characterised in that the output hysteroscope is outgoing mirror
It is plated with deielectric-coating B to be formed, or is plated with deielectric-coating B in the light exit side of the self-frequency-doubling crystal and is formed；The deielectric-coating B is extremely
It is rare to 980-1100nm high transmissions, the deielectric-coating to 900-980nm high reflections.
6. as claimed in claim 1 from frequency multiplication all-solid-state yellow laser, it is characterised in that input hysteroscope also needs to be plated with pair
1100-1200 nm and 555 nm-600 nm high reflections deielectric-coating, output hysteroscope be plated with to 1100-1200 nm high reflections and
To the deielectric-coating of 555 nm-600 nm high reflections；To realize that yellow band is effectively exported, the loss to encouraging light is reduced.
7. it is as claimed in claim 1 from frequency multiplication all-solid-state yellow laser, it is characterised in that the ytterbium ion doping line borate
The one kind of oxygen rare earth salt crystal in the borate doped calcium oxygen yttrium of ytterbium, the borate doped calcium oxygen lanthanum of ytterbium, the borate doped calcium oxygen gadolinium of ytterbium, or
Person be 2 kinds or 3 kinds in the borate doped calcium oxygen yttrium of ytterbium, the borate doped calcium oxygen lanthanum of ytterbium, the borate doped calcium oxygen gadolinium of ytterbium formed it is mixed
It is brilliant.
8. it is as claimed in claim 7 from frequency multiplication all-solid-state yellow laser, it is characterised in that the ytterbium ion doping line borate
The ytterbium ion doping concentration of oxygen rare earth salt crystal is 1% ~ 50%.
9. it is as claimed in claim 7 from frequency multiplication all-solid-state yellow laser, it is characterised in that the ytterbium ion doping line borate
The ytterbium ion doping concentration of oxygen rare earth salt crystal is 15% ~ 30%.
10. as described in claim 1 or 7 from frequency multiplication all-solid-state yellow laser, it is characterised in that self-frequency-doubling crystal's light pass surface
For cylinder, rectangle or other shapes, thang-kng mirror polish and deielectric-coating to oscillation light and frequency doubled light high transmission or not is plated with
Plated film；Self-frequency-doubling crystal's optical direction length is the mm of 0.5 mm ~ 50.
11. as described in claim 1 or 7 from frequency multiplication all-solid-state yellow laser, it is characterised in that self-frequency-doubling crystal thang-kng side
To the mm of length 4 ~ 20.
12. as claimed in claim 1 from frequency multiplication all-solid-state yellow laser, it is characterised in that the self-frequency-doubling crystal is along crystalline substance
The direction cutting of body negative principal planes effective nonlinear coefficient maximum can be the determination of 1064 nm lasers, optimum phase with optical maser wavelength
Matching direction is：With crystal refractive index maximum major axes orientation Z axis for 120 ° of ± 10 ° of scopes and with minimum crystal refractive index master
Direction of principal axis X-axis is -40 ° of ± 10 ° of scopes.
13. a kind of self-frequency doubling yellow laser, including driving source, focusing system, the laser resonance being arranged in order along optical path direction
Chamber, self-frequency-doubling crystal is in laser resonance intracavitary；Wherein, the self-frequency-doubling crystal is that ytterbium ion doping line borate oxygen rare-earth salts is brilliant
Body, laserresonator is made up of plating deielectric-coating A input mirror and plating deielectric-coating B outgoing mirror, and the input mirror is coated with to 900-
1100nm high transmissions and to 1100-1200 nm and the deielectric-coating A of 555 nm-600 nm high reflections, outgoing mirror is coated with to 980-
1100nm high transmissions, to 900-980nm high reflections and to 1100-1200 nm and the deielectric-coating B of 555 nm-600 nm high reflections.
14. a kind of self-frequency doubling yellow laser, including driving source, focusing system, the laser resonance being arranged in order along optical path direction
Chamber, self-frequency-doubling crystal；Wherein, the self-frequency-doubling crystal is ytterbium ion doping line borate oxygen rare earth salt crystal, in self-frequency-doubling crystal
Incident light end be coated with deielectric-coating A, emergent light end is coated with deielectric-coating B, the deielectric-coating A and deielectric-coating B and forms described laser
Resonator, the deielectric-coating A is to 900-1100nm high transmissions and to 1100-1200 nm and 555 nm-600 nm high reflections
Deielectric-coating；The deielectric-coating B is to 980-1100nm high transmissions, to 900-980nm high reflections and to 1100-1200 nm and 555
The deielectric-coating of nm-600 nm high reflections；The laser is microplate Yellow light laser.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535273.0A CN105071217B (en) | 2015-08-27 | 2015-08-27 | It is a kind of from frequency multiplication all-solid-state yellow laser |
Applications Claiming Priority (1)
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| CN107453197A (en) * | 2017-07-26 | 2017-12-08 | 中国科学院理化技术研究所 | Laser source for laser display |
| CN108493756B (en) * | 2018-02-07 | 2020-06-12 | 杭州电子科技大学 | YVO based on Nd4/Nd:GdVO4Double-frequency laser of combined crystal |
| CN109378691B (en) * | 2018-12-11 | 2021-06-01 | 山东大学 | All-solid-state high-power slab laser based on phononic band edge emission |
| CN112421370A (en) * | 2019-08-22 | 2021-02-26 | 山东大学 | Self-frequency-doubling full-solid-state laser based on quasi-two-level laser radiation |
| CN113131335A (en) * | 2021-04-13 | 2021-07-16 | 山东大学 | Compensation system for plant photosynthesis in agriculture based on self-frequency-doubling laser |
| CN114725766A (en) * | 2022-03-29 | 2022-07-08 | 同济大学 | Yellow laser based on self-frequency-doubling laser crystal |
| CN116254605B (en) * | 2022-12-20 | 2023-09-19 | 青岛镭视光电科技有限公司 | Yellow light self-frequency-doubling crystal and yellow light self-frequency-doubling laser |
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