CN106159649A - A kind of separation amplifying fiber Optical Maser System - Google Patents
A kind of separation amplifying fiber Optical Maser System Download PDFInfo
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- CN106159649A CN106159649A CN201510142558.8A CN201510142558A CN106159649A CN 106159649 A CN106159649 A CN 106159649A CN 201510142558 A CN201510142558 A CN 201510142558A CN 106159649 A CN106159649 A CN 106159649A
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- Prior art keywords
- fiber
- maser system
- output
- optical maser
- laser
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Abstract
The open one of the present invention separates amplifying fiber Optical Maser System, comprising: signal source, isolator, optical fiber cable and the amplification output precision being sequentially arranged along light path, and wherein, described amplification output precision includes integrated amplification module and fiber output head module.The present invention uses the amplification output precision of compact setting, signal directly exports, it is to avoid the generation of nonlinear effect, it is ensured that the high-peak power of laser instrument, the safety and stability output of high-average power.
Description
Technical field
The present invention relates to field of laser device technology, particularly relate to a kind of separation amplifying fiber Optical Maser System.
Background technology
High-peak power laser laser marking, laser deeply carve and the field such as welding have important,
Irreplaceable application.General laser instrument needs tape splicing to have the fiber output head of isolator just can facilitate,
It is flexibly applied in industrial processes, but high-peak power laser output pulse is higher due to it
Peak power, the longer optical fiber cable part easily and in fiber output head produces serious non-linear effect
Should, such as Ramam effect.The stability on product for these nonlinear effects causes many-sided bad impact,
First the exportable power of maximum of optical fiber laser is limited；Secondly as its output wavelength scope becomes
Width, causes it when the application such as laser marking because the sensitiveness to wavelength for the lens causes the problem of focusing,
Thus affect application effect；Again, laser instrument inevitably reflects a part when Laser Processing
Light goes back, if with the presence of Raman spectrum in fiber output head, can return to exporting Transmission Fibers,
But owing to price and manufacturing process limit inside laser instrument, general narrower bandwidth, it is only limited to isolation letter
Number wave band, and transparent to Raman spectrum wave band, thus cause laser instrument seed source to damage or damage, from
And reduce the stability of product.
As it is shown in figure 1, the signal source of existing fiber laser instrument connects isolator, from isolator out
Signal accesses amplification module, and signal is exaggerated after module is amplified and is exported by fiber output head through optical cable transmission
For directional light.
As in figure 2 it is shown, wherein curve laser 1 amplifies through amplification module for signal source signal out
After the curve of spectrum out, the now output mean power of laser 1 > 20W, peak power is 20KW,
Repetition rate is 25Khz, pulse width curve of spectrum when being 200ns.As can be seen from the figure now
It almost without generation such as stimulated Raman scattering (Stimulated Raman Scattering, SRS), is excited
The nonlinear effects such as Brillouin scattering (Stimulated Brillouin Scattering, SBS), now put
Peak power after great can be higher than 25KW, but high peak power laser pulse is easy and optical fiber
There is the nonlinear effects such as SRS, SBS, and as the length of optical fiber is longer, this effect is tighter
Weight.Optical fiber and signal source are easily caused damage even to damage by nonlinear effect, have a strong impact on laser instrument
Performance.But optical fiber laser is especially in the application such as mark, detection, needs optical cable longer, one
As at more than 2m, just facilitate operation with application.Typically, for the normal light that fibre core is 15 μm
Fibre, if the peak power of laser pulse exceeds 5KW, 1m can produce the Raman part of about 5DB
Spectrum.
The wherein curve of spectrum of laser 2, is that above-mentioned laser pulse is defeated by optical fiber after 3m optical cable transmission
Lifting one's head output test spectral, now the output mean power of laser 2 is 20W, and peak power is 20KW.
Contrast laser 1 curve is it can clearly be seen that have the laser pulse of high peak power at optical cable transmission
In create SRS, therefore in the spectrum of laser 2 contain flashlight and Raman spectrum.But laser is defeated
Go out pulse carry out laser application when, understand some light pulse and be back in light path, isolator is general
Can only block signal light, and the non-signal light source causing other nonlinear effects such as Raman is transparent, institute
With this part nonlinear effect spectrum again through in optical cable to amplification module or signal source, easily cause and put
Big module and the damage of signal source.Cause damage to laser instrument to reduce nonlinear effect or damage,
Need to reduce the operating distance of high-peak power laser pulse and optical cable.
In summary, existing high-peak power laser, there will naturally be defect in safety and stability,
Need to be improved.
Content of the invention
The technical problem to be solved in the present invention is to overcome prior art defect, provides one to separate and amplifies
Fiber ring laser system.
Technical scheme includes a kind of separation amplifying fiber Optical Maser System, comprising: along light path
Signal source, isolator, optical fiber cable and the amplification output precision being sequentially arranged, wherein, described amplification
Output precision includes integrated amplification module and fiber output head module.
Preferably, described amplification module and fiber output head module are connected by short fiber.
Preferably, a length of 0～50cm of described short fiber.
Cladding mode cancellation element that preferably, described fiber output head module includes being sequentially arranged along light path,
Isolator, beam expanding lens.
Preferably, the average-power-range of described signal source is 0～5W.
Preferably, a length of 0.1～10m of described optical fiber cable.
The beneficial effect comprise that the amplification output precision using above-mentioned compact setting, signal is straight
Connect output, it is to avoid the generation of nonlinear effect, it is ensured that the high-peak power of laser instrument, high average work(
The safety and stability output of rate.
Brief description
Fig. 1 is the structural representation of optical fiber laser of the prior art.
Fig. 2 be optical fiber laser of the prior art through optical cable output before and after spectrogram.
Fig. 3 is the structural representation of the fiber ring laser system of the present invention.
Fig. 4 is the amplification output precision structural representation of the fiber ring laser system of the present invention.
Fig. 5 is the fiber output head modular structure schematic diagram of the fiber ring laser system of the present invention.
Detailed description of the invention
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of separate amplifying fiber Optical Maser System, comprising: the signal source that is sequentially arranged along light path, every
From device, optical fiber cable and amplification output precision, wherein, described amplification output precision includes integrated putting
Big module and fiber output head module.
Technical solution of the present invention uses the amplification output precision of compact setting, and signal directly exports, it is to avoid
The generation of nonlinear effect, it is ensured that the high-peak power of laser instrument, the safety and stability of high-average power
Output.
As it is shown on figure 3, a kind of separate amplifying fiber Optical Maser System 10, comprising: along light path successively cloth
The signal source put the 11st, isolator the 12nd, optical fiber cable 13 and amplification output precision 15, wherein, above-mentioned
Amplify output precision 15 and include integrated amplification module 16 and fiber output head module 17.
Amplification module 16 input connects optical fiber cable 13, and it is defeated that amplification module 16 output connects optical fiber
Go out head module 17.
As shown in Figure 4, amplification module 16 and fiber output head module 17 connect compact, form one
Overall, it is easy to activity, convenient operation.Further, amplification module 16 and fiber output head module 17
Connected by short fiber 18.
Above-mentioned short fiber 18 length is preferably 0～50cm, the signal thus amplifying through amplification module 16
Only directly need to export through shorter optical fiber 18, it is to avoid the generation of nonlinear effect, it is ensured that laser instrument
High-peak power, high-average power safety and stability output.
As it is shown in figure 5, above-mentioned fiber output head module 17 includes disappearing along the cladding mode that light path is sequentially arranged
Except device the 19th, isolator the 20th, beam expanding lens 21.Wherein, cladding mode cancellation element 19 is mainly used in
Pump light except residual；Isolator 20 is high power isolator, prevents laser instrument being applied to return to
Flashlight damage is caused to laser instrument；Beam expanding lens 21 is main to be expanded hot spot and parallel output, convenient
Realize remote application.
The average-power-range of signal source 11 is 0～5W, laser pulse 14 after isolator 12
Peak power still is below 5KW, and so low peak power laser pulse reaches through optical fiber cable 13
It is placed in output module 15.
A length of 0.1～the 10m of optical fiber cable 13, even if the length of optical fiber cable 13 is longer, but due to
The peak power of laser pulse 14 is low, is not enough to produce such as the nonlinear effects such as SRS, therefore through light
When the laser pulse after fine optical cable 13 and output, laser pulse 14 is almost identical.
The separation amplifying fiber Optical Maser System of the present invention, safety and stability: reduce high-peak power, height
The laser pulse of mean power and the operating distance of optical fiber cable, thus reduce the generation of nonlinear effect,
Ensure that the high-peak power of laser instrument, the safety and stability output of high-average power；Reduce cost: this
The method of kind decreases the use of other isolators, grating, reduces cost.
The detailed description of the invention of present invention described above, is not intended that limiting the scope of the present invention.
Any technology according to the present invention is conceived various other made and is changed accordingly and deformation, all should wrap
Containing within the scope of the invention as claimed.
Claims (6)
1. one kind separates amplifying fiber Optical Maser System, it is characterised in that include: along light path successively cloth
Signal source, isolator, optical fiber cable and the amplification output precision put, wherein, described amplification output group
Part includes integrated amplification module and fiber output head module.
2. separation amplifying fiber Optical Maser System as claimed in claim 1, it is characterised in that described
Amplification module and fiber output head module are connected by short fiber.
3. separation amplifying fiber Optical Maser System as claimed in claim 2, it is characterised in that described
A length of 0～the 50cm of short fiber.
4. separation amplifying fiber Optical Maser System as claimed in claim 2, it is characterised in that described
Cladding mode cancellation element that fiber output head module includes being sequentially arranged along light path, isolator, beam expanding lens.
5. separation amplifying fiber Optical Maser System as claimed in claim 1, it is characterised in that described
The average-power-range of signal source is 0～5W.
6. separation amplifying fiber Optical Maser System as claimed in claim 1, it is characterised in that described
A length of 0.5～the 10m of optical fiber cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142558.8A CN106159649A (en) | 2015-03-27 | 2015-03-27 | A kind of separation amplifying fiber Optical Maser System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142558.8A CN106159649A (en) | 2015-03-27 | 2015-03-27 | A kind of separation amplifying fiber Optical Maser System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106159649A true CN106159649A (en) | 2016-11-23 |
Family
ID=57339784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510142558.8A Withdrawn CN106159649A (en) | 2015-03-27 | 2015-03-27 | A kind of separation amplifying fiber Optical Maser System |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018900A (en) * | 2021-11-15 | 2022-02-08 | 中国工程物理研究院材料研究所 | Raman spectrometer |
| WO2024027938A1 (en) * | 2022-08-03 | 2024-02-08 | Das-Nano Tech, S.L. | Delivering high-power laser pulses |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2434483A (en) * | 2006-01-20 | 2007-07-25 | Fianium Ltd | High-Power Short Optical Pulse Source |
| CN104362505A (en) * | 2014-11-19 | 2015-02-18 | 广东高聚激光有限公司 | Peak power intensifier and high peak power MOPA fiber laser |
| CN204835192U (en) * | 2015-03-27 | 2015-12-02 | 深圳激扬光电有限公司 | Fiber laser system is enlargied in separation |
-
2015
- 2015-03-27 CN CN201510142558.8A patent/CN106159649A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2434483A (en) * | 2006-01-20 | 2007-07-25 | Fianium Ltd | High-Power Short Optical Pulse Source |
| CN104362505A (en) * | 2014-11-19 | 2015-02-18 | 广东高聚激光有限公司 | Peak power intensifier and high peak power MOPA fiber laser |
| CN204835192U (en) * | 2015-03-27 | 2015-12-02 | 深圳激扬光电有限公司 | Fiber laser system is enlargied in separation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114018900A (en) * | 2021-11-15 | 2022-02-08 | 中国工程物理研究院材料研究所 | Raman spectrometer |
| WO2024027938A1 (en) * | 2022-08-03 | 2024-02-08 | Das-Nano Tech, S.L. | Delivering high-power laser pulses |
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Application publication date: 20161123 |
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