CN209150479U - The solid state laser of one micron waveband - Google Patents
The solid state laser of one micron waveband Download PDFInfo
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- CN209150479U CN209150479U CN201821456940.1U CN201821456940U CN209150479U CN 209150479 U CN209150479 U CN 209150479U CN 201821456940 U CN201821456940 U CN 201821456940U CN 209150479 U CN209150479 U CN 209150479U
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Abstract
The utility model provides a kind of solid state laser of a micron waveband, including, the high brightness pump source system and Solid State Laser Resonators being arranged successively；The high brightness pump source system includes the optical fiber laser that at least one specific wavelength exports and light source couples can be made to enter the condenser lens of the Solid State Laser Resonators, and the output power of the optical fiber laser is not less than 10W；The Solid State Laser Resonators include the dichroic mirror being arranged successively, solid state laser gain medium and partially reflecting mirror；The dichroic mirror can pass through whole pump lights, while reflect whole laser beams, and the partially reflecting mirror is for exporting laser beam.The technical program can weaken influence of the fuel factor to laser performance while improving the slope efficiency of brightness pump source system.
Description
Technical field
The utility model relates to a kind of solid state lasers, refer in particular to a kind of solid state laser of a micron waveband.
Background technique
Nineteen sixty, First laser-ruby laser is born in the world.This is one and uses flash lamp as pump
Pu source, ruby generate the laser of feux rouges as gain media.Since ruby is solid crystals, this laser
It is also First solid state laser in the world.With the development of materialogy, doped rare earth element glass or doped rare earth element crystal
Gradually become main gain media in solid state laser, solid state laser is defined as using doped rare earth element glass by people from this
The laser of glass or doped rare earth element crystal as gain media.
In the development course of solid state laser, the various fuel factors that how to overcome gain media to generate due to fever with
And how to improve the slope efficiency of laser is always that solid state laser researcher puts forth effort to solve the problems, such as, is solved these problems
Fundamental way be pumping source using high brightness.The diode-end-pumped being now widely used in solid state laser
Source, compared to traditional flash lamp pumping source, the brightness of output facula has had promotion, but in order to improve semiconductor laser
The output couple efficiency of device, this kind of pumping source are mostly exported using multimode fibre, so that the promotion for brightness is still limited.From light
The brightness in source is selected, and optical fiber laser is next option as solid state laser pumping source.When use optical-fiber laser
It, can be in Solid State Laser since pump light is strengthened with the overlapping of signal light when this higher source luminance of device is as pumping source
Low doping concentration, the longer gain media of length are used in device.So, due to the increase of gain medium volume area ratio,
So that heat dissipation becomes easy, influence of the fuel factor to laser performance is thereby reduced.
Therefore, it is necessary to propose a kind of solid state laser of a micron waveband, solid state laser is allowed to obtain higher slope effect
While rate, weaken influence of the fuel factor to laser performance.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of solid state lasers of a micron waveband, for solving
Certainly a micron waveband heat effect of solid laser influences technical problem big, that slope efficiency is low.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted in the utility model are as follows: solid of a micron waveband
Laser, including, the high brightness pump source system and Solid State Laser Resonators being arranged successively；
The high brightness pump source system includes the optical fiber laser and can make light source coupling that at least one specific wavelength exports
The condenser lens for entering the Solid State Laser Resonators is closed, the output power of the optical fiber laser is not less than 10W；
The Solid State Laser Resonators include the dichroic mirror being arranged successively, solid state laser gain medium and partially reflecting mirror；
The dichroic mirror can pass through whole pump lights, while reflect whole laser beams, and the partially reflecting mirror is for exporting laser light
Beam.
Further, the high brightness pump source system includes high power pump source and driving power, the driving electricity
Source is electrically connected with high power pump source, and the driving power is powered to the high power pump source.
Further, the wavelength in the high power pump source rare earth doped element uptake zone in.
Further, the condenser lens is set in front of the high power pump source, for projecting to high power pump source
Laser coupled.
Further, the optical fiber laser includes at least one semiconductor laser diode, one based on fused biconical taper
The fiber-optic signal pump combiner of technology and at least one section of rare earth doped fiber.Further, the optical fiber laser further include to
Few a pair of reflective or transmission-type Bragg grating, is used to form optical fiber laser resonant cavity and carries out wavelength selection.
Further, the optical fiber laser further includes the combination of at least a pair of of optical fiber collimator and reflecting mirror, is used for shape
At optical fiber laser resonant cavity；At least one signal wavelength selector, for carrying out wavelength selection.
Further, the signal wavelength selector is narrow linewidth optical filter.
Further, the signal wavelength selector is the reflective Bragg grating to selected wavelength diffractive.
Further, the solid state laser gain medium be doped rare earth element glass or doped rare earth element crystal, including but
It is not limited to neodymium-doped yttrium-aluminum garnet (Nd:YAG), mixes ytterbium yttrium-aluminium-garnet (Yb:YAG), Nd-doped yttrium vanadate (Nd:YVO4), neodymium-doped
Gadolinium Tungstate potassium (Nd:KGW) mixes ytterbium Gadolinium Tungstate potassium (Yb:KGW).
The utility model has the beneficial effects that: the utility model uses this higher source luminance of optical fiber laser as pump
Pu source, pump light are strengthened with the overlapping of signal light, to improve the absorption efficiency of pump light；At the same time, using low-mix
The solid state laser gain medium of miscellaneous concentration, laser will obtain higher slope efficiency, simultaneously because gain media is elongated, so that
Heat dissipation becomes easy, and thereby reduces influence of the fuel factor to laser performance.
Detailed description of the invention
The specific structure of the utility model is described in detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the embodiment of the solid state laser of a micron waveband of the utility model.
Wherein, 1- high power pump source, 2- pump combiner, 3- high reflectance fiber grating, 4- rare earth doped fiber, the portion 5-
Divide reflection fiber grating, 6- condenser lens, 7- dichroic mirror, 8- solid state laser gain medium, 9- reflecting mirror.
Specific embodiment
For technology contents, the construction feature, the objects and the effects that the utility model is described in detail, below in conjunction with implementation
Mode simultaneously cooperates attached drawing to be explained in detail.
Following technical scheme refers to Fig. 1.
A kind of solid state laser of a micron waveband, including, the high brightness pump source system and Solid State Laser being arranged successively
Resonant cavity；
The high brightness pump source system includes the optical fiber laser and can make light source coupling that at least one specific wavelength exports
The condenser lens 6 for entering the Solid State Laser Resonators is closed, the output power of the optical fiber laser is not less than 10W；
The Solid State Laser Resonators include that the dichroic mirror 7 being arranged successively, solid state laser gain medium 8 and part are reflected
Mirror 9；The dichroic mirror 7 can pass through whole pump lights, while reflect whole laser beams, and the partially reflecting mirror 9 is for exporting
Laser beam.
Preferably, the solid state laser gain medium 8 is doped rare earth element glass or doped rare earth element crystal.
Wherein, the solid state laser gain medium 8 be solid laser amplifier in used doped rare earth element glass or
Doped rare earth element crystal, including but not limited to neodymium-doped yttrium-aluminum garnet (Nd:YAG) mix ytterbium yttrium-aluminium-garnet (Yb:YAG), neodymium-doped
Yttrium Orthovanadate (Nd:YVO4), mixes ytterbium Gadolinium Tungstate potassium (Yb:KGW) at neodymium-doped tungstic acid gadolinium potassium (Nd:KGW), further include to gain media into
The heating equipment of row temperature control.
The dichroic mirror 7 is totally reflected laser beam, anti-reflection to the output wavelength of the optical fiber laser as pumping source.
In the technical program, use this higher source luminance of optical fiber laser as pumping source, pump light and signal light
Overlapping is strengthened, to improve the absorption efficiency of pump light；At the same time, laser will also obtain higher slope efficiency,
Simultaneously because gain media is elongated, so that heat dissipation becomes easy, influence of the fuel factor to laser performance is thereby reduced.
In one embodiment, the optical fiber laser includes high power pump source 1 and driving power, the driving
Power supply is electrically connected with high power pump source 1, and the driving power is powered to the high power pump source 1.
Wherein, high power pump source 1 is made of multiple multimode semiconductor lasers and driving power, each semiconductor laser
Device power is several watts or even tens of watts, and the wavelength of output can be 975 nanometers, 940 nanometers or 915 nanometers, preferred to use
Wavelength is 975 nanometers.By continuously powering or be modulated to the high brightness pump source 1, realize optical fiber laser continuously or
Quasi-continuous output.
In one embodiment, the optical fiber laser includes 1, one, at least one high power pump source based on melting
Draw the fiber-optic signal pump combiner 2 and at least one section of rare earth doped fiber 4 of cone technology.
Preferably, the wavelength in the high power pump source 1 rare earth doped element uptake zone in.
Preferably, the pump combiner 2 is set to 1 front of high brightness pump source, for penetrating to high power pump source 1
Laser out is coupled.
Preferably, the optical fiber laser further includes at least a pair of reflective or transmission-type Bragg grating, is used for
It forms optical fiber laser resonant cavity and carries out wavelength selection.
Preferably, the optical fiber laser further includes the combination of at least a pair of of optical fiber collimator and reflecting mirror, is used to form
Optical fiber laser resonant cavity；At least one signal wavelength selector, for carrying out wavelength selection.
Preferably, the signal wavelength selector is narrow linewidth optical filter.
Preferably, the signal wavelength selector is the reflective Bragg grating to selected wavelength diffractive.
Wherein, pump combiner 2 is the fiber pump combiner based on fused biconical taper technology in the implementation case, is realized
The combinations of multiple pump lights and signal light；High reflectance fiber grating 3 and part reflection fiber grating 5 are in the implementation case
Signal wavelength selection with optical fiber laser resonant cavity reflect original part combiner.Meanwhile the high brightness laser that optical fiber laser generates
Beam is exported by part reflection fiber grating 5, and is coupled into solid by the condenser lens 6 in 5 front of part reflection fiber grating
Laser resonator.
Rare earth doped fiber 4 is the gain media of the optical fiber laser in the implementation case, wherein the rare earth element mixed can
To be ytterbium or neodymium, the output wavelength according to required by optical fiber laser is selected.Meanwhile according to for optical fiber laser not
With output requirement, can between single covering rare earth doped fiber and double clad rare earth doped fiber, polarization-maintaining rare earth doped fiber and
Selection and combination is carried out between non-polarization-maintaining rare earth doped fiber and between the rare earth doped fiber of various core diameters.
In one embodiment, a kind of solid state laser of a micron waveband comprising: high brightness pump source system and
Solid State Laser Resonators；
The high brightness pump source system includes: optical fiber laser, and the optical fiber laser includes high power pump source 1,
The front in the high power pump source 1 is equipped with pump combiner 2, is equipped with high reflectance optical fiber light in front of the pump combiner 2
The front of grid 3, the high reflectance fiber grating 3 is equipped with rare earth doped fiber 4 and part reflection fiber grating 5；Meanwhile optical fiber
The output power of laser is not less than 10W；
The resonant cavity includes dichroic mirror 7, and solid state laser gain medium 8 is equipped in front of the dichroic mirror 7, and the solid swashs
Reflecting mirror 9 is equipped in front of optical gain medium 8.
Wherein, the high power pump source 1 is made of n multimode semiconductor laser and driving power, each semiconductor
Laser power is several watts or even tens of watts, and the wavelength of output can be 975 nanometers, 940 nanometers or 915 nanometers, preferably
Use wavelength for 975 nanometers.By continuously powering or being modulated to the high power pump source 1, realize that optical fiber laser connects
Continuous or quasi-continuous output.
The specific works mode for the solid laser amplifier that the implementation case is pumped with higher source luminance are as follows: wavelength is 914
Nanometer perhaps 940 nanometers or 976 nanometers of high power pump source 1, passes through pump combiner 2 and high reflectance optical fiber light
Grid 3 are coupled in the rare earth doped fiber 4 for mixing ytterbium, and the wavelength that generation is vibrated in optical fiber laser resonant cavity is 1005~1020 nanometers
High-brightness fiber-optic laser pass through partially reflective fiber grating 5 output；Then, this high-brightness fiber-optic laser output beam passes through poly-
Focus lens 6 are collimated and are coupled into Solid State Laser Resonators through dichroic mirror 7.In Solid State Laser Resonators, ytterbium yttroalumite is mixed
Garnet (Yb:YAG) is used as solid state laser gain medium 8, and the signal laser light beam that generation wavelength is 1030 nanometers is by partially reflecting
Mirror 9 exports.
Herein first, second ... only represents the differentiation of its title, not representing their significance level and position has what
It is different.
Herein, up, down, left, right, before and after only represents its relative position without indicating its absolute position.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of solid state laser of a micron waveband, it is characterised in that: including, the high brightness pump source system that is arranged successively and
Solid State Laser Resonators；
The high brightness pump source system includes, the optical fiber laser of at least one specific wavelength output and can make light source couples into
Enter the condenser lens of the Solid State Laser Resonators, the output power of the optical fiber laser is not less than 10W；
The Solid State Laser Resonators include the dichroic mirror being arranged successively, solid state laser gain medium and partially reflecting mirror；It is described
Dichroic mirror can pass through whole pump lights, while reflect whole laser beams, and the partially reflecting mirror is for exporting laser beam.
2. the solid state laser of a micron waveband as described in claim 1, it is characterised in that: the high brightness pump source system
Including high power pump source and driving power, the driving power is electrically connected with high power pump source, and the driving power is given
The high power pump source power supply.
3. the solid state laser of a micron waveband as claimed in claim 2, it is characterised in that: the optical fiber laser includes extremely
A few semiconductor laser diode, a fiber-optic signal pump combiner based on fused biconical taper technology and at least one section are mixed dilute
Native optical fiber.
4. the solid state laser of a micron waveband as claimed in claim 3, it is characterised in that: the wave in the high power pump source
Grow rare earth doped element uptake zone in.
5. the solid state laser of a micron waveband as claimed in claim 4, it is characterised in that: the condenser lens is set to described
In front of high power pump source, the laser for projecting to high power pump source is coupled.
6. the solid state laser of a micron waveband as claimed in claim 2, it is characterised in that: the optical fiber laser further includes
At least a pair of reflective or transmission-type Bragg grating, is used to form optical fiber laser resonant cavity and carries out wavelength selection.
7. the solid state laser of a micron waveband as claimed in claim 2, it is characterised in that: the optical fiber laser further includes
The combination of at least a pair of of optical fiber collimator and reflecting mirror, is used to form optical fiber laser resonant cavity；The selection of at least one signal wavelength
Device, for carrying out wavelength selection.
8. the solid state laser of a micron waveband as claimed in claim 7, it is characterised in that: the signal wavelength selector is
Narrow linewidth optical filter.
9. the solid state laser of a micron waveband as claimed in claim 7, it is characterised in that: the signal wavelength selector is
To the reflective Bragg grating of selected wavelength diffractive.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821456940.1U CN209150479U (en) | 2018-09-06 | 2018-09-06 | The solid state laser of one micron waveband |
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| CN201821456940.1U CN209150479U (en) | 2018-09-06 | 2018-09-06 | The solid state laser of one micron waveband |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736303A (en) * | 2018-09-06 | 2018-11-02 | 英诺激光科技股份有限公司 | The solid state laser of one micron waveband |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736303A (en) * | 2018-09-06 | 2018-11-02 | 英诺激光科技股份有限公司 | The solid state laser of one micron waveband |
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