CN207651793U - It is a kind of to realize the super continuous spectrums laser aid with flat spectrum - Google Patents
It is a kind of to realize the super continuous spectrums laser aid with flat spectrum Download PDFInfo
- Publication number
- CN207651793U CN207651793U CN201721745894.2U CN201721745894U CN207651793U CN 207651793 U CN207651793 U CN 207651793U CN 201721745894 U CN201721745894 U CN 201721745894U CN 207651793 U CN207651793 U CN 207651793U
- Authority
- CN
- China
- Prior art keywords
- laser
- fiber
- optical fiber
- tunable
- pulsed laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Lasers (AREA)
Abstract
The super continuous spectrums laser aid with flat spectrum is realized the utility model discloses a kind of, including tunable pulsed laser seed source, power amplifier, mould field adaptation and photonic crystal fiber, the tunable pulsed laser seed source, the first pulse laser for sending out different wave length；The power amplifier, first pulse laser for being sent out to tunable pulsed laser seed source carry out power amplification processing, obtain the second pulse laser；The mould field adaptation, second pulse laser for obtaining the power amplifier are sent to the photonic crystal fiber；The photonic crystal fiber forms super continuous spectrums laser for converting second pulse laser of input.The utility model can realize the super continuous spectrums laser with preferable flatness, spectral region covering visible light wave band.
Description
Technical field
The utility model is related to laser optoelectronic technical fields more particularly to a kind of realize to have the super continuous of flat spectrum
Compose laser aid.
Background technology
The near infrared band optical fiber laser with super continuous spectrum of spectrum covering visible light, since its frequency component covers a variety of points
The spectral response range of the absorption peak of son and different detector, biomedical imaging, broadband optical fiber communication, atmospheric science,
The fields such as photoelectronic warfare have extensive use.The characteristics such as spectral width, the flatness of super continuous spectrums laser are usually by pumping laser
Wavelength, peak power and photonic crystal fiber the decisions such as dispersion characteristics, nonlinear factor and length.Spectral region at present
The high-peak power that the super continuous spectrums laser of covering visible light wave band is mostly 1 μm or so using wavelength picosecond or mix ytterbium arteries and veins nanosecond
The photonic crystal fiber that optical fiber laser pump zero-dispersion wavelength is 1040nm or so is rushed to realize.
The pumping laser of existing super continuous spectrums laser is mostly the fixed pulse laser of parameter, i.e., pumping laser wavelength,
Pulse width, repetition rate etc. are fixed value, and the mean power by increasing pulse laser is incident on photonic crystal light to improve
The peak power of fine laser, to realize the increase of spectral width of super-continuum spectrum and the promotion of flatness and visible wavelength
The increase of component.
If wanting to obtain the light component in more shortwave directions, it usually needs ensure pumping wavelength close to photonic crystal fiber zero
The anomalous dispersion region of dispersion wavelength, and due to photonic crystals optical fiber structure complexity, dispersion characteristics are usually obtained by simulation calculation
It arrives.On the one hand, the practical zero-dispersion wavelength of the photonic crystal fiber of drawing and the theoretical value of simulation calculation have gap, another party
There is deviation in face by solving non-linear Schrodinger equation to the emulation of supercontinuum generation process and real process.Current foundation
The super continuous spectrums laser of simulation result design, although its output power has reached tens of watts of even hectowatts, output spectrum
Flatness still has to be hoisted, evaluates its flatness with the 10dB spectral widths of wavelength 600-1700nm ranges, usually less than
1000nm even if it is more than the super continuous spectrums laser of 1000nm to have flatness, and eliminates remaining pumping laser.For how
The flatness for improving super continuous spectrums spectrum has been reported that research is realized width by the photonic crystal fiber with double zero dispersion wavelengths by put down
Smooth super continuous spectrums output, is also only limited to theoretical simulation, but fibre-optical drawing difficulty is larger, realizes more difficult.
Therefore, the technical problem urgently solved is needed to be exactly instantly：How a kind of effective measures are proposed, with
Solve the problems, such as that the pumping laser residual of existing super continuous spectrums laser is more, spectral flatness is poor.
Invention content
The purpose of this utility model is to provide for a kind of super continuous spectrums laser aid realized and have flat spectrum, can
Realize the super continuous spectrums laser with preferable flatness, spectral region covering visible light wave band.
According to the one side of the utility model, the utility model provides a kind of super continuous spectrums realized and have flat spectrum
Laser aid, including tunable pulsed laser seed source, power amplifier, mould field adaptation and photonic crystal fiber,
The tunable pulsed laser seed source, the first pulse laser for sending out different wave length；
The power amplifier, first pulse laser for being sent out to tunable pulsed laser seed source carry out work(
Rate enhanced processing obtains the second pulse laser；
The mould field adaptation, second pulse laser for obtaining the power amplifier are sent to the light
Photonic crystal fiber；
The photonic crystal fiber forms super continuous spectrums and swashs for converting second pulse laser of input
Light.
Optionally, the tunable pulsed laser seed source be it is following any one:Tunable gain switch with tail optical fiber
Semiconductor laser, the tunable Q impulse optical fiber laser with tail optical fiber, the tunable passive mode-locking fiber laser with tail optical fiber
With the tunable Active Mode-locked Fiber Laser with tail optical fiber.
Optionally, halfwidth is received for sub-nanometer to 20 in the laser spectrum that the tunable pulsed laser seed source is sent out
Rice magnitude.
Optionally, the tuning for the laser center wavelength that the tunable pulsed laser seed source is sent out is located at photon crystalline substance
Minus ten nanometers of the zero-dispersion wavelength of body optical fiber is to positive between 50 nanometers.
Optionally, the power amplifier is one or more levels amplifier.
Optionally, when the output power of the tunable pulsed laser seed source is more than preset pulsed laser power,
Power amplifier is made of one or more levels double-cladding fiber amplifier；When the output work of the tunable pulsed laser seed source
When rate is less than or equal to preset pulsed laser power, the power amplifier by concatenated level-one list cladded-fiber amplifier and
One or more levels double-cladding fiber amplifier is constituted, input terminal and the tunable arteries and veins of the level-one list cladded-fiber amplifier
Impulse light seed source is connected, and the output end of one or more levels double-cladding fiber amplifier is connected with the mould field adaptation.
Optionally, the input tail optical fiber of the mould field adaptation is consistent with the output tail optical fiber parameter of the power amplifier.
Optionally, the output tail optical fiber of the mould field adaptation is single covering single mode passive fiber.
Optionally, the output tail optical fiber of the mould field adaptation is fixedly connected with the photonic crystal fiber using welding, shape
At tie point be coated with uv-curable glue.
Optionally, the photonic crystal fiber is high non-linear photon crystal optical fiber, the high non-linear photon crystal light
Fine fibre core is stuffed quartz, and covering has the airport of periodic arrangement.
Compared with prior art, the effect of the utility model is as follows：
Provided by the utility model to realize the super continuous spectrums laser aid with flat spectrum, described device can using wavelength
Pumping source of the optical fiber laser of tuning as optical fiber laser with super continuous spectrum reaches preset value in pumping laser peak power
When, according to the characteristic for the super continuous spectrums laser spectrum that different pumping laser wavelength generate, optimal pumping laser wavelength is found, then
Increase pumping laser peak power by power amplifier, realizes that the flatness of spectral region covering visible light wave band is preferably super
Continuous spectrum laser, solve current super continuous spectrums laser only causes to pump by improving pump laser power promotion spectral flatness
Optical maser wavelength remains the problem of more its spectral flatness of influence.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of one embodiment of the utility model.
In figure：1 is tunable pulsed laser seed source；2 be power amplifier；3 be mould field adaptation；4 be photonic crystal
Optical fiber.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
In order to solve the problems in the prior art, the utility model provides a kind of super continuous spectrums realized and have flat spectrum
Laser aid, it is shown in Figure 1, including tunable pulsed laser seed source 1, power amplifier 2, mould field adaptation 3 and photon
Crystal optical fibre 4,
The tunable pulsed laser seed 1, for sending out different wave length using tunable wave length pumped optical fibre laser
The first pulse laser；In the embodiment of the present invention, the tunable pulsed laser seed source 1 be it is following any one:Band tail optical fiber
Tunable gain-switching semiconductor laser, the tunable Q impulse optical fiber laser with tail optical fiber, the tunable quilt with tail optical fiber
Dynamic mode locked fiber laser and the tunable Active Mode-locked Fiber Laser with tail optical fiber.
The power amplifier 2, first pulse laser for being sent out to tunable pulsed laser seed source carry out
Power amplification is handled, and obtains the second pulse laser；In the embodiment of the present invention, the power amplifier 2 amplifies for one or more levels
Device；Wherein, the number of stages of amplification of the power amplifier 2 is determined by the output power of the tunable pulsed laser seed source.
In the embodiment of the present invention, the power amplifier 2 is according to preset pulsed laser power condition, when tunable pulse
When the pulsed laser power that laser seed source 1 exports is more than preset pulsed laser power, power amplifier 2 is by one or more levels
Double-cladding fiber amplifier is constituted；It is preset when the pulsed laser power that tunable pulsed laser seed source 1 exports is less than or equal to
Pulsed laser power when, the power amplifier 2 is by concatenated level-one list cladded-fiber amplifier and one or more levels double-contracting
Layer fiber amplifier is constituted, input terminal and the tunable pulsed laser seed source 1 of the level-one list cladded-fiber amplifier
It is connected, the output end of one or more levels double-cladding fiber amplifier is connected with the mould field adaptation 3.
Specifically, in the present embodiment by taking the preset pulsed laser power condition is ten milliwatts as an example, when tunable arteries and veins
When the pulsed laser power that impulse light seed source 1 exports is more than ten milliwatts, power amplifier 2 is one or more levels doubly clad optical fiber
Amplifier, using cladding pumping mode；When the pulsed laser power that pulse laser seeds source 1 exports is less than ten milliwatts, power
Amplifier 2 is made of concatenated level-one list cladded-fiber amplifier and one or more levels double-cladding fiber amplifier, single cladding light
Fiber amplifier uses fibre core pump mode, double-cladding fiber amplifier to use cladding pumping mode.
The mould field adaptation 3, second pulse laser for obtaining the power amplifier 2 are sent to described
Photonic crystal fiber 4；The present embodiment, the input tail optical fiber of the mould field adaptation 3 are joined with the output tail optical fiber of the power amplifier 2
Number is consistent.The output tail optical fiber of the mould field adaptation 3 is single covering single mode passive fiber.The mould field adaptation 3 is for reducing
Second pulse laser enters the coupling loss of the photonic crystal fiber 4, further, can be also used for improving described the
The beam quality of two pulse lasers.
The photonic crystal fiber 4 forms super continuous spectrums and swashs for converting second pulse laser of input
Light.The output tail optical fiber of the present embodiment, the mould field adaptation 3 is fixedly connected with the photonic crystal fiber 4 using welding, is formed
Tie point be coated with uv-curable glue, the uv-curable glue is high refractive index uv-curable glue.It avoids in pump power
Tie point accumulates the stability of a large amount of heat affecting lasers when higher.
Possibly/optionally, the present embodiment, the photonic crystal fiber 4 is high non-linear photon crystal optical fiber, the height
For non-linear photon crystal optical fiber using quartz as base material, fibre core is stuffed quartz, and covering is the air with periodic arrangement
The zero-dispersion wavelength in hole, the photonic crystal fiber 4 is located at 1040nm-5nm between 1040nm+5nm.The present embodiment photon is brilliant
The zero-dispersion wavelength of body optical fiber 4 is 1040nm.
In the present embodiment, the tunable pulsed laser seed source 1 and the power amplifier 2 constitute super continuous spectrums optical fiber
Laser pump source.The pulse laser for the Wavelength tunable that the tunable pulsed laser seed source 1 is sent out passes through power amplifier
2, the pumping pulse laser with certain peak power is obtained, by mould field adaptation 3, pump photon crystal optical fibre 4 generates light
The different super continuous spectrums laser of spectral property.The mould field adaptation is for reducing optical fiber laser with super continuous spectrum pumping source output tail
It is fine to be lost with coupling pump light caused by photonic crystal fiber model field unbalance, to realize higher power and more high coupling efficiency
Super continuous spectrums laser exports.
Since in the case where photonic crystal fiber parameter is certain, the spectral width and flatness of super continuous spectrums not only depend on
In pumping pulse laser peak power also with pumping wavelength it is closely related, therefore the present embodiment utilize tunable wave length pump light
Fibre laser pump photon crystal optical fibre, first in default pumping laser peak power, by adjusting tunable pulsed laser
The wavelength shift pumping laser wavelength that seed source 1 is sent out finds optimal pumping laser wavelength, the i.e. shortwave of super continuous spectrums laser
Long boundary is most short and flatness is good, then increases pumping laser peak power by power amplifier 2, it is higher to obtain peak power
Pulse laser, by mould field adaptation 3, pump photon crystal optical fibre 4 generates pumping pulse laser without apparent residue, to
It realizes that spectrum is wider, flatness is more preferable, spectrum covering visible light wave band super continuous spectrums laser output, especially reduces pumping and swash
Light is remaining.
Possibly/optionally, the present embodiment, half is high in the laser spectrum that the tunable pulsed laser seed source 1 is sent out
Width is sub-nanometer to 20 nanometer scales.The laser spectrum shape that the tunable pulsed laser seed source 1 is sent out includes Gauss
Shape, rectangle, parabola shaped, triangle, trapezoidal etc..
Possibly/optionally, the present embodiment, the tune for the laser center wavelength that the tunable pulsed laser seed source is sent out
Humorous minus ten nanometers of the zero-dispersion wavelength positioned at the photonic crystal fiber is to positive between 50 nanometers.With the photonic crystal fiber
Zero-dispersion wavelength be 1040nm for, the tuning range for the laser center wavelength that the tunable pulsed laser seed source is sent out
Within the positive and negative tens nanometer of zero-dispersion wavelength of the photonic crystal fiber, i.e. 1030-1090nm.
The device of super continuous spectrums laser provided by the utility model with flat spectrum, utilizes the pulse of tunable wave length
Optical fiber laser pump photonic crystal fiber may be implemented pumping pulse laser without apparent remaining, flatness preferably, spectral region
The super continuous spectrums laser of covering visible light wave band exports, and spectral flatness (including pumping laser) is better than existing super continuous spectrums
Optical fiber laser has prodigious practicability.
Claims (10)
1. a kind of realizing the super continuous spectrums laser aid with flat spectrum, it is characterised in that：Including tunable pulsed laser kind
Component (1), power amplifier (2), mould field adaptation (3) and photonic crystal fiber (4),
The tunable pulsed laser seed source (1), the first pulse laser for sending out different wave length；
The power amplifier (2), first pulse laser for being sent out to the tunable pulsed laser seed source (1)
Power amplification processing is carried out, the second pulse laser is obtained；
The mould field adaptation (3) is described for second pulse laser that the power amplifier (2) obtains to be sent to
Photonic crystal fiber；
The photonic crystal fiber (4) forms super continuous spectrums and swashs for converting second pulse laser of input
Light.
2. the apparatus according to claim 1, which is characterized in that the tunable pulsed laser seed source (1) is following
Meaning is a kind of:Tunable gain-switching semiconductor laser with tail optical fiber, tunable Q impulse optical fiber laser, band with tail optical fiber
The tunable passive mode-locking fiber laser of tail optical fiber and the tunable Active Mode-locked Fiber Laser with tail optical fiber.
3. the apparatus according to claim 1, which is characterized in that the tunable pulsed laser seed source (1) sent out swashs
The halfwidth of light spectrum is sub-nanometer to 20 nanometer scales.
4. device according to any one of claims 1 to 3, which is characterized in that tunable pulsed laser seed source (1) hair
The tuning of the laser center wavelength gone out is located at minus ten nanometers to positive 50 nanometers of the zero-dispersion wavelength of the photonic crystal fiber (4)
Between.
5. the apparatus according to claim 1, which is characterized in that the power amplifier (2) is one or more levels amplifier.
6. device according to claim 5, which is characterized in that
When the output power of the tunable pulsed laser seed source (1) is more than preset pulsed laser power, the power
Amplifier (2) is made of one or more levels double-cladding fiber amplifier；
When the output power of the tunable pulsed laser seed source (1) is less than or equal to preset pulsed laser power, institute
Power amplifier (2) is stated to be made of concatenated level-one list cladded-fiber amplifier and one or more levels double-cladding fiber amplifier,
The input terminal of the level-one list cladded-fiber amplifier is connected with the tunable pulsed laser seed source, it is described one or more levels
The output end of double-cladding fiber amplifier is connected with the mould field adaptation (3).
7. the apparatus according to claim 1, which is characterized in that the input tail optical fiber of the mould field adaptation (3) and the work(
The output tail optical fiber parameter of rate amplifier (2) is consistent.
8. the apparatus according to claim 1, which is characterized in that the output tail optical fiber of the mould field adaptation (3) is single covering
Single mode passive fiber.
9. the device according to claim 1 or 8, which is characterized in that the output tail optical fiber of the mould field adaptation (3) with it is described
Photonic crystal fiber (4) is fixedly connected using welding, and the tie point of formation is coated with uv-curable glue.
10. the apparatus according to claim 1, which is characterized in that the photonic crystal fiber (4) is that high non-linearity photon is brilliant
The fibre core of body optical fiber, the high non-linear photon crystal optical fiber is stuffed quartz, and covering has the airport of periodic arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721745894.2U CN207651793U (en) | 2017-12-14 | 2017-12-14 | It is a kind of to realize the super continuous spectrums laser aid with flat spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721745894.2U CN207651793U (en) | 2017-12-14 | 2017-12-14 | It is a kind of to realize the super continuous spectrums laser aid with flat spectrum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207651793U true CN207651793U (en) | 2018-07-24 |
Family
ID=62880788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721745894.2U Expired - Fee Related CN207651793U (en) | 2017-12-14 | 2017-12-14 | It is a kind of to realize the super continuous spectrums laser aid with flat spectrum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207651793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445002A (en) * | 2019-07-23 | 2019-11-12 | 南京邮电大学 | A kind of low device and method for pumping few mould photonic crystal fiber and generating super continuous spectrums |
| CN113054520A (en) * | 2021-03-12 | 2021-06-29 | 中国人民解放军国防科技大学 | Pure visible light super-continuum spectrum light source based on semiconductor laser diode pumping |
-
2017
- 2017-12-14 CN CN201721745894.2U patent/CN207651793U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110445002A (en) * | 2019-07-23 | 2019-11-12 | 南京邮电大学 | A kind of low device and method for pumping few mould photonic crystal fiber and generating super continuous spectrums |
| CN113054520A (en) * | 2021-03-12 | 2021-06-29 | 中国人民解放军国防科技大学 | Pure visible light super-continuum spectrum light source based on semiconductor laser diode pumping |
| CN113054520B (en) * | 2021-03-12 | 2021-10-26 | 中国人民解放军国防科技大学 | Pure visible light super-continuum spectrum light source based on semiconductor laser diode pumping |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107069410B (en) | A kind of multipurpose bidirectional passive mode-locking full optical fiber laser system | |
| CN202487963U (en) | Super-continuum optical fiber laser | |
| JP2000105394A (en) | Wavelength-variable short pulse light generating device and method therefor | |
| CN103995413B (en) | A kind of ytterbium-doped all fibre optical frequency com system | |
| CN103151687B (en) | A kind of directly produce in the amplifier in the method for infrared excess continuous spectrum | |
| CN105048267A (en) | Intermediate infrared super-continuum spectrum laser light source | |
| CN109301686B (en) | High-repetition-frequency femtosecond laser pulse generation system and method | |
| CN109494552A (en) | A kind of full optical fiber laser system and method generating high-energy rectangular pulse | |
| CN207651793U (en) | It is a kind of to realize the super continuous spectrums laser aid with flat spectrum | |
| CN111404005A (en) | All-fiber mode-locked fiber laser | |
| CN103401141A (en) | Direct modulation distributed feedback semiconductor laser-based photoelectric oscillator | |
| CN105826800A (en) | All-optical fiber broadband flat intermediate-infrared super-continuum spectrum light source | |
| Wu et al. | Q-switched mode-locked multimode fiber laser based on a graphene-deposited multimode microfiber | |
| Ahmad et al. | All fiber normal dispersion mode locked ytterbium doped double-clad fiber laser using fiber taper with WS2-ZnO saturable absorber | |
| CN106125451B (en) | A kind of optical differential device based on Temporal pulse shaping system | |
| CN103399446B (en) | Based on the All Optical Wave Converter of low light level regulation and control optical soliton | |
| Wang et al. | Numerical modeling of mode-locked fiber lasers with a fiber-based saturable-absorber | |
| CN110380324A (en) | A kind of ultrashort pulse fiber laser | |
| Ramlan et al. | Generation of soliton operating at 1.5 µm regime using Indium Selenide based saturable absorber | |
| Kamynin et al. | Picosecond holmium fibre laser pumped at | |
| Uvin et al. | Mid-infrared to telecom-band stable supercontinuum generation in hydrogenated amorphous silicon waveguides | |
| Harun et al. | Supercontinuum generation in photonic crystal fiber using femtosecond pulses | |
| Gao et al. | Dissipative soliton fiber laser mode-locked by Cesium lead halide perovskite quantum dots | |
| CN215579524U (en) | Optical pulse self-similarity amplifying device based on semiconductor quantum dots | |
| CN108879300A (en) | Super continuum source system and method based on the pumping of double bound state mode locking pulses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |