CN104362496A - High-power narrow-linewidth linear polarization fiber laser - Google Patents
High-power narrow-linewidth linear polarization fiber laser Download PDFInfo
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- CN104362496A CN104362496A CN201410649254.6A CN201410649254A CN104362496A CN 104362496 A CN104362496 A CN 104362496A CN 201410649254 A CN201410649254 A CN 201410649254A CN 104362496 A CN104362496 A CN 104362496A
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Abstract
The invention discloses a high-power narrow-linewidth linear polarization fiber laser. The high-power narrow-linewidth linear polarization fiber laser is characterized in that a diode-pumped laser and the pump input end of an optical fiber pump signal beam combiner are connected, the optical fiber end face of the signal input end of the optical fiber pump signal beam combiner is chamfered, the signal output end of the optical fiber pump signal beam combiner is connected with a high-reflective fiber Bragg grating written on a non- polarization-maintaining optical fiber, the other end of the high-reflective fiber Bragg grating is connected with a rare earth doping optical fiber, the other end of the rare earth doping optical fiber is connected with a cladding mode filter, the other end of the cladding mode filter is connected with a low-reflective fiber Bragg grating written on a polarization maintaining optical fiber, the other end of the low-reflective fiber Bragg grating is connected with an output optical fiber, and the end face of the other end of the output optical fiber is chamfered at eight degrees. The output laser linewidth is controlled through the fiber Bragg gratings, all-fiber welding and an all-fiber mode are realized, the work performance is stable, maintenance is not needed, and the high-power narrow-linewidth linear polarization fiber laser can be widely applied to the fields of nolinear frequency convertors, fiber-optic gyroscopes, optical fiber sensors and the like.
Description
Technical field
The present invention relates to a kind of fiber laser, especially a kind of high power narrow linewidth linearly polarized light fibre laser, belongs to optical fiber and field of lasers.
Background technology
Narrow cable and wide optical fiber laser can be widely used in the fields, particularly high power narrow linewidth linearly polarized light fibre laser such as coherent communication, sensing, additive mixing, gravitational wave detection, becomes the hot issue of current laser field research.Because polarization maintaining optical fibre exists birefringent characteristic, the polarization-maintaining fiber grating writing single reflectance spectrum online has certain complexity and difficulty, especially high-power polarization preserving fiber grating, and the raising of Single wavelength, linearly polarized light fibre laser power output is restricted.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of all-fiber is provided, not by the restriction of polarization maintaining optical fibre birefringent characteristic, stablize the high power narrow linewidth linear polarization optical fiber fiber laser of output high-power.
The present invention can be achieved through the following technical solutions.
A kind of high power narrow linewidth linearly polarized light fibre laser, comprise: semiconductor pump laser 1, fibre pump signal bundling device 2, write the anti-fiber grating 3 of the height be formed on non PM fiber, rare-earth doped optical fibre 4, cladding mode stripper 5, write the low anti-fiber grating 6 be formed on polarization maintaining optical fibre, output optical fibre 7, it is characterized in that semiconductor pump laser 1 is connected with the pumping input of fibre pump signal bundling device 2, pumping laser is coupled into laser cavity by fibre pump signal bundling device, the signal input part fiber end face of fibre pump signal bundling device 2 is cut sth. askew, the signal output part of fibre pump signal bundling device 2 with write the anti-fiber grating 3 of the height be formed on non PM fiber and be connected, the other end of high anti-fiber grating 3 is connected with rare-earth doped optical fibre 4, rare-earth doped optical fibre 4 other end is connected with cladding mode stripper 5, the cladding mode stripper other end with write the low anti-fiber grating 6 be formed on polarization maintaining optical fibre and be connected, rare-earth doped optical fibre is as gain media, two fiber gratings are as laser mirror, the low anti-fiber grating other end is connected with output optical fibre 7 with Output of laser.
Described semiconductor pump laser 1 is the multimode semiconductor laser of coupling fiber, and operation wavelength can be 793nm or 915nm or 940nm or 976nm.The multimode semiconductor laser of different operating wavelength is adopted according to the difference of rare-earth doped optical fibre.
Described to write the anti-fiber grating of the height be formed on non PM fiber be bragg grating, and write and be formed on the inclined doubly clad optical fiber of non-guarantor, at bragg wavelength place, reflectivity is greater than 99%, and three dB bandwidth is about 0.3nm.
The described low anti-fiber grating be formed on polarization maintaining optical fibre of writing is bragg grating, writing to be formed on protects on inclined double clad silica fiber, Bragg reflection spectrum has two reflection peaks to correspond respectively to two kinds of polarization modes, these two reflection peak centre wavelength spacing are about 0.2nm, at bragg wavelength place, reflectivity is less than 60%, and three dB bandwidth is about 0.1nm;
Described rare-earth doped optical fibre is for protecting inclined doubly clad optical fiber, and fibre core is doped with rare earth ion, can be bait ion, ytterbium ion, thulium ion, can also be that bait ytterbium mixes ion altogether;
Described cladding mode stripper is used for filtering residue pumping and the laser signal that transmits in covering;
The Output of laser of described high power narrow linewidth linearly polarized light fibre laser is linearly polarized laser, achieve linearly polarized laser by the centre wavelength controlling high reflective grid and low reflective grid to export, specific as follows: the chamber mirror of high anti-fiber grating and low anti-fiber grating high power narrow linewidth linearly polarized light fibre laser for this reason, wherein low anti-fiber grating is formed on polarization maintaining optical fibre owing to writing, there are two reflection peaks (corresponding to two polarization modes), but only have a reflection peak centre wavelength corresponding with the reflection peak centre wavelength of the anti-fiber grating of height, therefore a polarization mode is only had to form laser generation in laser cavity, thus achieve linearly polarized laser output.
The Output of laser of described a kind of high power narrow linewidth linearly polarized light fibre laser is narrow-linewidth laser, being less than 0.1nm, effectively narrowing the live width of optical-fiber laser by controlling low reflective fine optical grating reflection peak 3dB live width.
Described a kind of high power narrow linewidth linearly polarized light fibre laser is double-clad optical fiber laser, can realize high-power output;
Described output optical fibre is polarization maintaining optical fibre, and output end face has carried out 8 degree of angle cuttings, suppresses self-oscillatory flashlight end face reflection.
Present invention achieves a kind of method utilizing all optical fibre structure to obtain high power narrow linewidth linearly polarized laser device, this structure is simple, structure is simple, Output of laser live width is controlled by fiber grating, achieve all-fiber welding and all-fiber, stable work in work, Maintenance free, can be widely used in the fields such as additive mixing, optic fiber gyroscope, Fibre Optical Sensor.
Accompanying drawing explanation
Fig. 1 is a kind of structure chart diagram of the present invention.
Mark in figure: semiconductor pump laser 1, fibre pump signal bundling device 2, write the anti-fiber grating 3 of the height be formed on non PM fiber, rare-earth doped optical fibre 4, cladding mode stripper 5, write the low anti-fiber grating 6, the output optical fibre 7 that are formed on polarization maintaining optical fibre.
Embodiment
The invention will be further described by reference to the accompanying drawings:
As shown in Figure 1, a kind of high power narrow linewidth linearly polarized light fibre laser, comprise: semiconductor pump laser 1, fibre pump signal bundling device 2, write the anti-fiber grating 3 of the height be formed on non PM fiber, rare-earth doped optical fibre 4, cladding mode stripper 5, write the low anti-fiber grating 6 be formed on polarization maintaining optical fibre, output optical fibre 7.It is characterized in that semiconductor pump laser 1 is connected with the pumping input of fibre pump signal bundling device 2, pumping laser is coupled into laser cavity by fibre pump signal bundling device, the signal input part fiber end face of fibre pump signal bundling device 2 is cut sth. askew, the signal output part of fibre pump signal bundling device 2 with write the anti-fiber grating 3 of the height be formed on non PM fiber and be connected, the other end of high anti-fiber grating 3 is connected with rare-earth doped optical fibre 4, rare-earth doped optical fibre 4 other end is connected with cladding mode stripper 5, the cladding mode stripper other end with write the low anti-fiber grating 6 be formed on polarization maintaining optical fibre and be connected, rare-earth doped optical fibre is as gain media, two fiber gratings are as laser mirror, the low anti-fiber grating other end is connected with output optical fibre 7 with Output of laser.Described semiconductor pump laser is the multimode semiconductor laser of coupling fiber, and operation wavelength can be 793nm, 915nm, 940nm or 976nm.The multimode semiconductor laser of different operating wavelength is adopted according to the difference of rare-earth doped optical fibre, described writes the anti-fiber grating of the height be formed on non PM fiber, and be bragg grating, write and be formed on the inclined doubly clad optical fiber of non-guarantor, at bragg wavelength place, reflectivity is greater than 99%, and three dB bandwidth is about 0.3nm, described writes the low anti-fiber grating be formed on polarization maintaining optical fibre, for bragg grating, writing to be formed on protects on inclined double clad silica fiber, Bragg reflection spectrum has two reflection peaks to correspond respectively to two kinds of polarization modes, these two reflection peak centre wavelength spacing are about 0.2nm, at bragg wavelength place, reflectivity is less than 60%, and three dB bandwidth is about 0.1nm, described rare-earth doped optical fibre is for protecting inclined doubly clad optical fiber, and fibre core is doped with rare earth ion, can be bait ion, ytterbium ion, thulium ion, can also be that bait ytterbium mixes ion altogether, described cladding mode stripper is used for filtering residue pumping and the laser signal that transmits in covering, the Output of laser of described high power narrow linewidth linearly polarized light fibre laser is linearly polarized laser, achieve linearly polarized laser by the centre wavelength controlling high reflective grid and low reflective grid to export, specific as follows: the chamber mirror of high anti-fiber grating and low anti-fiber grating high power narrow linewidth linearly polarized light fibre laser for this reason, wherein low anti-fiber grating is formed on polarization maintaining optical fibre owing to writing, there are two reflection peaks (corresponding to two polarization modes), but only have a reflection peak centre wavelength corresponding with the reflection peak centre wavelength of the anti-fiber grating of height, therefore a polarization mode is only had to form laser generation in laser cavity, thus achieve linearly polarized laser output, described a kind of high power narrow linewidth linearly polarized light fibre laser, is characterized in that laser Output of laser is narrow-linewidth laser, being less than 0.1nm, effectively narrowing the live width of optical-fiber laser by controlling low reflective fine optical grating reflection peak 3dB live width, described a kind of high power narrow linewidth linearly polarized light fibre laser is double-clad optical fiber laser, can realize high-power output, described output optical fibre polarization maintaining optical fibre, output end face has carried out 8 degree of angle cuttings, suppresses self-oscillatory flashlight end face reflection.Present invention achieves a kind of method utilizing all optical fibre structure to obtain high power narrow linewidth linearly polarized laser device, this structure is simple, structure is simple, Output of laser live width is controlled by fiber grating, achieve all-fiber welding and all-fiber, stable work in work, Maintenance free, can be widely used in the fields such as additive mixing, optic fiber gyroscope, Fibre Optical Sensor.
Claims (10)
1. a high power narrow linewidth linearly polarized light fibre laser, comprise: semiconductor pump laser, fibre pump signal bundling device, write the anti-fiber grating of the height be formed on non PM fiber, rare-earth doped optical fibre, cladding mode stripper, write the low anti-fiber grating be formed on polarization maintaining optical fibre, output optical fibre, it is characterized in that semiconductor pump laser is connected with the pumping input of fibre pump signal bundling device, the signal input part fiber end face of fibre pump signal bundling device is cut sth. askew, the signal output part of fibre pump signal bundling device with write the anti-fiber grating of the height be formed on non PM fiber and be connected, the other end of high anti-fiber grating is connected with rare-earth doped optical fibre, the rare-earth doped optical fibre other end is connected with cladding mode stripper, the cladding mode stripper other end with write the low anti-fiber grating be formed on polarization maintaining optical fibre and be connected, the low anti-fiber grating other end is connected with output optical fibre, the end face of the output optical fibre other end is cut sth. askew as degree angle.
2. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, it is characterized in that described semiconductor pump laser is the multimode semiconductor laser of coupling fiber, operation wavelength is 793nm or 915nm or 940nm or 976nm.
3. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, it is characterized in that the anti-fiber grating of height that described writing is formed on non PM fiber is bragg grating, write and be formed on the inclined doubly clad optical fiber of non-guarantor, at bragg wavelength place, reflectivity is greater than 99%, and three dB bandwidth is about 0.3nm.
4. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, it is characterized in that described the writing low anti-fiber grating be formed on polarization maintaining optical fibre is bragg grating, writing to be formed on protects on inclined double clad silica fiber, Bragg reflection spectrum has two reflection peaks to correspond respectively to two kinds of polarization modes, these two reflection peak centre wavelength spacing are about 0.2nm, at bragg wavelength place, reflectivity is less than 60%, and three dB bandwidth is about 0.1nm.
5. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, it is characterized in that described rare-earth doped optical fibre is for protecting inclined doubly clad optical fiber, fibre core is doped with rare earth ion.
6. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, is characterized in that described cladding mode stripper is used for filtering residue pumping and the laser signal that transmits in covering.
7. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, it is characterized in that laser Output of laser is linearly polarized laser, achieve linearly polarized laser by the centre wavelength controlling high reflective grid and low reflective grid to export, specific as follows: the chamber mirror of high anti-fiber grating and low anti-fiber grating high power narrow linewidth linearly polarized light fibre laser for this reason, wherein low anti-fiber grating is formed on polarization maintaining optical fibre owing to writing, there are two reflection peaks, only have a reflection peak centre wavelength corresponding with the reflection peak centre wavelength of the anti-fiber grating of height, a polarization mode is only had to form laser generation in laser cavity, achieve linearly polarized laser to export.
8. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, is characterized in that laser Output of laser is narrow-linewidth laser, being less than 0.1nm, effectively narrowing the live width of optical-fiber laser by controlling low reflective fine optical grating reflection peak 3dB live width.
9. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, is characterized in that laser is double-clad optical fiber laser, realizes high-power output.
10. a kind of high power narrow linewidth linearly polarized light fibre laser according to claim 1, is characterized in that described output optical fibre is polarization maintaining optical fibre, and output has carried out 8 degree of angle cuttings, suppresses self-oscillatory flashlight end face reflection.
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| CN201410649254.6A CN104362496A (en) | 2014-11-17 | 2014-11-17 | High-power narrow-linewidth linear polarization fiber laser |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040240508A1 (en) * | 2003-05-30 | 2004-12-02 | Np Photonics, Inc., A Corporation Of Delaware | High-power narrow-linewidth single-frequency laser |
| CN101113939A (en) * | 2006-07-14 | 2008-01-30 | 新科实业有限公司 | Optical characteristic detecting method of optical fiber equipment, detecting device and system |
| CN102522682A (en) * | 2011-12-15 | 2012-06-27 | 华南理工大学 | High-power ASE (Amplified Spontaneous Emission) light source with multi-section cascade 1064nm wave bands |
| CN103036136A (en) * | 2013-01-16 | 2013-04-10 | 山东海富光子科技股份有限公司 | Gain switch pulse type single-frequency optical fiber laser |
| CN103199420A (en) * | 2013-04-22 | 2013-07-10 | 山东海富光子科技股份有限公司 | Single-fiber simple-oscillator kilowatt-grade all-fiber laser |
| CN204243445U (en) * | 2014-11-17 | 2015-04-01 | 山东海富光子科技股份有限公司 | A kind of high power narrow linewidth linearly polarized light fibre laser |
-
2014
- 2014-11-17 CN CN201410649254.6A patent/CN104362496A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040240508A1 (en) * | 2003-05-30 | 2004-12-02 | Np Photonics, Inc., A Corporation Of Delaware | High-power narrow-linewidth single-frequency laser |
| CN101113939A (en) * | 2006-07-14 | 2008-01-30 | 新科实业有限公司 | Optical characteristic detecting method of optical fiber equipment, detecting device and system |
| CN102522682A (en) * | 2011-12-15 | 2012-06-27 | 华南理工大学 | High-power ASE (Amplified Spontaneous Emission) light source with multi-section cascade 1064nm wave bands |
| CN103036136A (en) * | 2013-01-16 | 2013-04-10 | 山东海富光子科技股份有限公司 | Gain switch pulse type single-frequency optical fiber laser |
| CN103199420A (en) * | 2013-04-22 | 2013-07-10 | 山东海富光子科技股份有限公司 | Single-fiber simple-oscillator kilowatt-grade all-fiber laser |
| CN204243445U (en) * | 2014-11-17 | 2015-04-01 | 山东海富光子科技股份有限公司 | A kind of high power narrow linewidth linearly polarized light fibre laser |
Non-Patent Citations (1)
| Title |
|---|
| XIUSHAN ZHU ET AL.: ""976nm single-frequency distributed bragg reflector fiber laser"", 《OPTICS LETTERS》 * |
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Application publication date: 20150218 |