CN106936066A - Super continuous spectrums laser generator and system - Google Patents
Super continuous spectrums laser generator and system Download PDFInfo
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- CN106936066A CN106936066A CN201710350338.3A CN201710350338A CN106936066A CN 106936066 A CN106936066 A CN 106936066A CN 201710350338 A CN201710350338 A CN 201710350338A CN 106936066 A CN106936066 A CN 106936066A
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- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
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- 229910052769 Ytterbium Inorganic materials 0.000 claims description 7
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims description 5
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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
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
- H01S5/0092—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping for nonlinear frequency conversion, e.g. second harmonic generation [SHG] or sum- or difference-frequency generation outside the laser cavity
-
- 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
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0092—Nonlinear frequency conversion, e.g. second harmonic generation [SHG] or sum- or difference-frequency generation outside the laser cavity
-
- 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
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
-
- 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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
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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
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/0604—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium comprising a non-linear region, e.g. generating harmonics of the laser frequency
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
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- Physics & Mathematics (AREA)
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- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Nonlinear Science (AREA)
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Abstract
The invention provides a kind of super continuous spectrums laser generator and system, it is related to laser technology field, is included in what is set gradually in same light path：Laser, fiber amplifier, frequency multiplier and photonic crystal fiber, the first short-pulse laser that centre wavelength scope is 0.95~1.3 μm is provided by laser, first short-pulse laser is carried out signal amplification by fiber amplifier, export the second short-pulse laser, frequency multiplier is changed to the second short-pulse laser according to default frequency multiplication number of times, output center wavelength scope is the 3rd short-pulse laser of 470~650nm or so, photonic crystal fiber carries out non-linear transfer to the 3rd short-pulse laser, and output wavelength scope is about the super continuous spectrums laser of 350~900nm.The present invention can improve the conversion efficiency of visible light wave range, obtain the white light output of high power stabilization.
Description
Technical field
The present invention relates to laser technology field, more particularly, to super continuous spectrums laser generator and system.
Background technology
Super continuous spectrums technology can simultaneously produce the multi-wavelength short light pulse of high-repetition-rate in wide spectral region.Due to
The features such as it has power output high, flat broadband spectral, the spatial coherence of height, can greatly improve signal to noise ratio, subtract
Small time of measuring and widen spectral measurement ranges.So as to the super continuous spectrums white light source for producing is in laser display, laser lighting
It is boundless Deng field application prospect.
But, according to data, nowadays the accessible spectral region of super continuous spectrums device is about 400nm~1.7 μ to root
Between m, the centre wavelength of pumped nonlinear photonic crystal fiber is 1 μm or so.The super continuum light spectrum for so producing, main energetic
Distribution concentrates on middle-infrared band (760nm~1mm), and the conversion efficiency of visible light wave range (400nm~760nm) is very low, because
This can not be used for as laser display light source well.
The content of the invention
In view of this, it is an object of the invention to provide super continuous spectrums laser generator and system, to improve visible ray
The conversion efficiency of wave band, obtains the white light output of high power stabilization.
In a first aspect, a kind of super continuous spectrums laser generator is the embodiment of the invention provides, wherein, it is included in same light
Set gradually on road：Laser, fiber amplifier, frequency multiplier and photonic crystal fiber；
The laser, for providing the first short-pulse laser；
The fiber amplifier, for first short-pulse laser to be carried out into signal amplification, the second short pulse of output swashs
Light；
The frequency multiplier, for being changed according to default frequency multiplication number of times to second short-pulse laser, output the 3rd
Short-pulse laser；
The photonic crystal fiber, for carrying out non-linear transfer to the 3rd short-pulse laser, exports super continuous spectrums
Laser.
With reference in a first aspect, the embodiment of the invention provides the first possible implementation method of first aspect, wherein, institute
The centre wavelength scope for stating the first short-pulse laser is 0.95~1.3 μm.
With reference in a first aspect, the embodiment of the invention provides second possible implementation method of first aspect, wherein, institute
The centre wavelength scope for stating the 3rd short-pulse laser is 470~650nm.
With reference in a first aspect, the embodiment of the invention provides the third possible implementation method of first aspect, wherein, institute
The wave-length coverage for stating super continuous spectrums laser is 350~900nm.
With reference in a first aspect, the embodiment of the invention provides the 4th kind of possible implementation method of first aspect, wherein, institute
Laser is stated for semiconductor laser, femto-second laser, optical fiber laser or solid state laser.
With reference in a first aspect, the embodiment of the invention provides the 5th kind of possible implementation method of first aspect, wherein, institute
Fiber amplifier is stated for ytterbium doped optical fiber amplifier.
With reference in a first aspect, the embodiment of the invention provides the 6th kind of possible implementation method of first aspect, wherein, institute
Fiber amplifier is stated for one-level is amplified or multistage amplification.
With reference in a first aspect, the embodiment of the invention provides the 7th kind of possible implementation method of first aspect, wherein, institute
Frequency multiplier is stated for varactor doubler.
With reference in a first aspect, the embodiment of the invention provides the 8th kind of possible implementation method of first aspect, wherein, institute
Photonic crystal fiber is stated for nonlinear optical fiber.
Second aspect, the embodiment of the present invention also provides a kind of super continuous spectrums laser generation system, wherein, including laser absorption
Device, and including super continuous spectrums laser generator described in as above any one, the laser absorption device is arranged at described super
The output end of continuous spectrum laser generator；
The laser absorption device, for the laser of the non-visible light wave band in super continuous spectrums laser to be absorbed.
The embodiment of the present invention brings following beneficial effect：Super continuous spectrums laser generator and system that the present invention is provided
It is included in what is set gradually in same light path：Laser, fiber amplifier, frequency multiplier and photonic crystal fiber, by laser
The first short-pulse laser that centre wavelength is 0.95~1.3 μm is provided, the first short-pulse laser is carried out signal by fiber amplifier
Amplify, export the second short-pulse laser, frequency multiplier is changed to the second short-pulse laser according to default frequency multiplication number of times, in output
Heart wave-length coverage is the 3rd short-pulse laser of 470~650nm, and photonic crystal fiber carries out non-linear to the 3rd short-pulse laser
Conversion, output wavelength scope is the super continuous spectrums laser of 350~900nm.The present invention can improve the conversion effect of visible light wave range
Rate, obtains the white light output of high power stabilization.
Other features and advantages of the present invention will be illustrated in the following description, also, the partly change from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the super continuous spectrums laser generator schematic diagram that the embodiment of the present invention one is provided；
Fig. 2 is the photonic crystals optical fiber structure schematic diagram that the embodiment of the present invention one is provided；
Fig. 3 is the super continuous spectrums laser generation system schematic diagram that the embodiment of the present invention two is provided；
Fig. 4 is the super continuous spectrums laser generation method schematic diagram that the embodiment of the present invention three is provided.
Icon：
100- super continuous spectrums laser generators；110- lasers；120- fiber amplifiers；130- frequency multipliers；140- light
Photonic crystal fiber；200- laser absorption devices.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Super continuous spectrums technology can simultaneously produce the multi-wavelength short light pulse of high-repetition-rate in wide spectral region.Due to
The features such as it has power output high, flat broadband spectral, the spatial coherence of height, can greatly improve signal to noise ratio, subtract
Small time of measuring and widen spectral measurement ranges.So as to the super continuous spectrums white light source for producing is in laser display, laser lighting
It is boundless Deng field application prospect.
But, according to data, nowadays the accessible spectral region of super continuous spectrums device is about 400nm~1.7 μ to root
Between m, the centre wavelength of pumped nonlinear photonic crystal fiber is 1 μm or so.The super continuum light spectrum for so producing, main energetic
Distribution concentrates on middle-infrared band (760nm~1mm), and the conversion efficiency of visible light wave range (400nm~760nm) is very low, because
This can not be used for as laser display light source well.
Based on this, super continuous spectrums laser generator provided in an embodiment of the present invention and system can improve visible light wave
The conversion efficiency of section, obtains the white light output of high power stabilization.
For ease of understanding the present embodiment, dress is produced to the super continuous spectrums laser disclosed in the embodiment of the present invention first
Put and describe in detail.
Embodiment one：
Fig. 1 is the super continuous spectrums laser generator schematic diagram that the embodiment of the present invention one is provided.
Reference picture 1, super continuous spectrums laser generator 100 is included in what is set gradually in same light path：Laser 110,
Fiber amplifier 120, frequency multiplier 130 and photonic crystal fiber 140.
Laser 110, for providing the first short-pulse laser；The centre wavelength of the first short-pulse laser is 1 μm or so, model
It is 0.95~1.3 μm to enclose, such as can be 1.064 μm.
Fiber amplifier 120, for the first short-pulse laser to be carried out into signal amplification, exports the second short-pulse laser；The
Two short-pulse lasers are identical with the centre wavelength of the first short-pulse laser；Here fiber amplifier 120 be one-level amplify or
Multistage is amplified.
Frequency multiplier 130, for being changed according to default frequency multiplication number of times to the second short-pulse laser, exports the 3rd short pulse
Laser；Frequency multiplier 130 is varactor doubler, and the second short-pulse laser is changed, and output center wavelength is 500nm or so, model
The 3rd short-pulse laser for 470~650nm is enclosed, the 3rd short-pulse laser is green glow, such as centre wavelength can be 532nm.
Photonic crystal fiber 140, for carrying out non-linear transfer to the 3rd short-pulse laser, exports super continuous spectrums laser.
Photonic crystal fiber 140 makes the super continuous spectrums laser broadening scope of output by the centre wavelength of the 3rd short-pulse laser of change
It is 350~900nm, wherein being concentrated mainly on 400~760nm.400~760nm wave bands are visible ray.Photonic crystal fiber
140 is nonlinear optical fiber.
Specifically, super continuous spectrums technology can simultaneously produce the multi-wavelength short pulse of high-repetition-rate in wide spectral region
Light.The features such as having power output high, flat broadband spectral, the spatial coherence of height due to it, can greatly improve letter
Make an uproar ratio, reduce time of measuring and widen spectral measurement ranges.So as to produce super continuous spectrums white light source laser display, swash
The field such as optical illumination application prospect is boundless.
In the present embodiment, by adding frequency multiplier 130, by 1 μm or so of pumping optical sccond-harmonic generation into the green of 500nm or so
Light, by changing centre wavelength, increases conversion efficiency of the super continuous spectrums in visible-range, and energy concentrates on visible ray model
In enclosing, the white light output of high power stabilization can be obtained, so as to realize the purpose of laser display light source.
Exemplary embodiment of the invention, laser 110 is semiconductor laser, femto-second laser, optical-fiber laser
Device or solid state laser.
Specifically, laser 110 can be InGaAsP/InP semiconductor lasers, with efficiency high, small volume, weight
The light and low advantage of price.
Laser 110 can also be optical fiber laser, and the tail optical fiber of optical fiber laser melts with the input of fiber amplifier 120
Connect, the first short-pulse laser is directly input into fiber amplifier 120 by tail optical fiber.
Exemplary embodiment of the invention, the prioritizing selection ytterbium doped optical fiber amplifier of fiber amplifier 120.
Specifically, the technology of fiber amplifier 120 is exactly to mix that the rare earth element of laser can be produced in the fibre core of optical fiber, lead to
The direct current light stimulus of the offer of laser 110 is provided, the optical signal for passing through is amplified.Ytterbium doped optical fiber amplifier is in silica fibre
Fibre core in mix the ytterbium ion (Yb3+) of appropriate concentration.Because the level structure of ytterbium ion is simple, in pump light and signal
Under optical wavelength, there is multiple Excited-state Absorption, light conversion efficiency is high, big level spacing eliminate the nonradiative relaxation time and
Concentration quenching etc., therefore in this embodiment can preferred ytterbium doped optical fiber amplifier.
Frequency multiplier 130 can be waveguide type optical fiber frequency multiplier.
Specifically, the input of waveguide type optical fiber frequency multiplier connects the output end of fiber amplifier 120, can be put with optical fiber
Big device 120 is integrated in a module.
In addition, frequency multiplier 130 can also be crystal frequency multiplier.Crystal frequency multiplier includes KTP (KTiOPO4, phosphoric acid titanyl
Potassium) crystal or LN (LiNbO3, lithium niobate) crystal and frequency conversion coupler, ktp crystal or LN crystal pass through frequency conversion coupler reality
Existing phase matched.
Photonic crystal fiber 140 is nonlinear optical fiber.Wherein, photonic crystal fiber 140 can be including but not limited to：Press
Can be divided into two major classes, i.e. refractive index light-conducting type and band gap leading type according to its guide-lighting mechanism.
Specifically, the structure chart of the photonic crystal fiber 140 of band gap leading type can refer to Fig. 2, by pure silica core and tool
It is made up of the covering of periodicity air pore structure, wherein fibre core is hollow structure.Band gap leading type photonic crystal fiber 140 passes through
Change the refractive index of the size, spacing and quartz material of airport so that the dispersion of photonic crystal fiber 140 and nonlinear characteristic
Generation is complicated to be changed, so that the spectral width of the super continuous spectrums produced using photonic crystal fiber 140 meets demand.
Embodiment two：
Fig. 3 is the super continuous spectrums laser generation system schematic diagram that the embodiment of the present invention two is provided.
Reference picture 3, super continuous spectrums laser generation system includes laser absorption device 200, and including as described above super
Continuous spectrum laser generator 100, laser absorption device 200 is arranged at the output end of super continuous spectrums laser generator 100；
Laser absorption device 200, for the laser of the non-visible light wave band in super continuous spectrums laser to be absorbed.
Specifically, in order to avoid being caused by the laser of the non-visible light wave band of the outgoing of super continuous spectrums laser generator 100
Potential safety hazard, the super continuous spectrums laser generation system that the present embodiment is provided also includes laser absorption device 200.Laser absorption device
200 are arranged on outside the housing of super continuous spectrums laser generator 100, can through the non-of the output of photonic crystal fiber 140 for absorbing
See the laser of optical band so that the light of output is concentrated mainly in the range of the centre wavelength of 400~760nm.
The embodiment of the present invention brings following beneficial effect：Super continuous spectrums laser generator and system that the present invention is provided
It is included in what is set gradually in same light path：Laser, fiber amplifier, frequency multiplier and photonic crystal fiber, by laser
The first short-pulse laser that centre wavelength scope is 0.95~1.3 μm is provided, fiber amplifier carries out the first short-pulse laser
Signal amplifies, and exports the second short-pulse laser, and frequency multiplier is changed to the second short-pulse laser according to default frequency multiplication number of times, defeated
Go out the 3rd short-pulse laser that centre wavelength scope is 470~650nm or so, photonic crystal fiber enters to the 3rd short-pulse laser
Row non-linear transfer, output wavelength scope is about the super continuous spectrums laser of 350~900nm.The present invention can improve visible light wave
The conversion efficiency of section, obtains the white light output of high power stabilization.
Embodiment three：
Fig. 4 is the super continuous spectrums laser generation method schematic diagram that the embodiment of the present invention three is provided.
Reference picture 4, super continuous spectrums laser generation method comprises the following steps：
Step S110, there is provided the first short-pulse laser；
Specifically, it is 0.95~1.3 μm of first short-pulse laser to provide centre wavelength scope by laser, as seed
Light source.
Step S120, signal amplification is carried out by the first short-pulse laser, exports the second short-pulse laser；
Specifically, by the fiber amplifier with optical gain function, the first short-pulse laser is carried out into signal amplification,
The second short-pulse laser is exported, the second short-pulse laser is identical with the centre wavelength of the first short-pulse laser.
Step S130, changes to the second short-pulse laser according to default frequency multiplication number of times, exports the 3rd short-pulse laser；
Specifically, by varactor doubler, by pumping optical sccond-harmonic generation that centre wavelength scope is 0.95~1.3 μm into centre wavelength
Scope is the green glow of 470~650nm.
Step S140, non-linear transfer is carried out to the 3rd short-pulse laser, exports super continuous spectrums laser；
Specifically, carrying out non-linear transfer, output center wavelength model to the 3rd short-pulse laser by photonic crystal fiber
Enclose be in 350~900nm wave bands be visible ray.
Step S150, the laser of the non-visible light wave band in super continuous spectrums laser is absorbed.
Specifically, the laser of non-visible light wave band is absorbed by laser absorption device so that the light of output is main
Concentrate in the range of the centre wavelength of 400~760nm.
The embodiment of the present invention also provides a kind of electronic equipment, including memory, processor and storage are on a memory and can
The computer program for running on a processor, realizes the super continuous spectrums that above-described embodiment is provided during computing device computer program
The step of laser generation method.
The embodiment of the present invention also provides a kind of computer-readable recording medium, and be stored with meter on computer-readable recording medium
Calculation machine program, the step of the super continuous spectrums laser generation method of above-described embodiment is performed when computer program is run by processor.
Super continuous spectrums laser generator and the computer program product of system that the embodiment of the present invention is provided, including deposit
The computer-readable recording medium of program code is stored up, the instruction that described program code includes can be used to perform previous methods implementation
Method described in example, implements and can be found in embodiment of the method, will not be repeated here.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
If the function is to realize in the form of SFU software functional unit and as independent production marketing or when using, can be with
Storage is in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used to so that a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, specific embodiment only of the invention, is used to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of embodiment of the present invention technical scheme, should all cover in protection of the invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of super continuous spectrums laser generator, it is characterised in that be included in what is set gradually in same light path：Laser,
Fiber amplifier, frequency multiplier and photonic crystal fiber；
The laser, for providing the first short-pulse laser；
The fiber amplifier, for first short-pulse laser to be carried out into signal amplification, exports the second short-pulse laser；
The frequency multiplier, for being changed according to default frequency multiplication number of times to second short-pulse laser, exports the 3rd short arteries and veins
Impulse light；
The photonic crystal fiber, for carrying out non-linear transfer to the 3rd short-pulse laser, exports super continuous spectrums laser.
2. super continuous spectrums laser generator according to claim 1, it is characterised in that first short-pulse laser
Centre wavelength scope is 0.95~1.3 μm.
3. super continuous spectrums laser generator according to claim 1, it is characterised in that the 3rd short-pulse laser
Centre wavelength scope is 470~650nm.
4. super continuous spectrums laser generator according to claim 1, it is characterised in that the ripple of the super continuous spectrums laser
Scope long is 350~900nm.
5. super continuous spectrums laser generator according to claim 1, it is characterised in that the laser swashs for semiconductor
Light device, femto-second laser, optical fiber laser or solid state laser.
6. super continuous spectrums laser generator according to claim 1, it is characterised in that the fiber amplifier is to mix ytterbium
Fiber amplifier.
7. super continuous spectrums laser generator according to claim 1, it is characterised in that the fiber amplifier is one-level
Amplify or multistage amplification.
8. super continuous spectrums laser generator according to claim 1, it is characterised in that the frequency multiplier is two frequencys multiplication
Device.
9. super continuous spectrums laser generator according to claim 1, it is characterised in that the photonic crystal fiber is non-
Linear optical fiber.
10. a kind of super continuous spectrums laser generation system, it is characterised in that including laser absorption device, and will including such as right
Super continuous spectrums laser generator described in 1~9 any one, the laser absorption device is asked to be arranged at the super continuous spectrums laser and produce
The output end of generating apparatus；
The laser absorption device, for the laser of the non-visible light wave band in super continuous spectrums laser to be absorbed.
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| CN201710350338.3A CN106936066A (en) | 2017-05-17 | 2017-05-17 | Super continuous spectrums laser generator and system |
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| WO2019062844A1 (en) * | 2017-09-30 | 2019-04-04 | 飞秒激光研究中心（广州）有限公司 | Femtosecond laser multi-modal molecular imaging system |
| CN110375960A (en) * | 2019-06-03 | 2019-10-25 | 太原理工大学 | A kind of device and method based on super continuum source OTDR |
| CN113466883A (en) * | 2021-06-21 | 2021-10-01 | 长春理工大学 | Device and method for improving detection distance in sea fog environment based on wide-spectrum circular polarization |
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Application publication date: 20170707 |