CN112769029A - DBR short-cavity single-frequency fiber laser of multimode semiconductor pump source cladding pumping - Google Patents
DBR short-cavity single-frequency fiber laser of multimode semiconductor pump source cladding pumping Download PDFInfo
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- 239000000835 fiber Substances 0.000 title claims abstract description 147
- 238000005086 pumping Methods 0.000 title claims abstract description 32
- 238000005253 cladding Methods 0.000 title claims abstract description 28
- 239000004065 semiconductor Substances 0.000 title claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 238000002310 reflectometry Methods 0.000 claims abstract description 9
- 230000010355 oscillation Effects 0.000 claims abstract description 5
- 230000009471 action Effects 0.000 claims abstract description 3
- 239000013307 optical fiber Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000004927 fusion Effects 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- -1 ytterbium ions Chemical class 0.000 description 4
- KWMNWMQPPKKDII-UHFFFAOYSA-N erbium ytterbium Chemical compound [Er].[Yb] KWMNWMQPPKKDII-UHFFFAOYSA-N 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094069—Multi-mode pumping
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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
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
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Abstract
The invention discloses a DBR short-cavity single-frequency fiber laser of multimode semiconductor pump source cladding pumping, which comprises: the multi-transverse-mode LD pump source emits high-power multi-transverse-mode initial pump light in a pump gain fiber absorption band, and the initial pump light is coupled into a cladding of a double-cladding single-mode pump gain fiber through a pump signal beam combiner to carry out cladding pumping on the initial pump light; the pump gain fiber absorbs initial pump light emitted by the LD pump source, and the generated intermediate pump light oscillates in an intermediate pump light resonant cavity formed by the first pump fiber grating and the second pump fiber grating; the fiber core size of the DBR cavity gain fiber is consistent with that of the pump gain fiber and is positioned in the middle pump light resonant cavity, and the middle pump light is absorbed by the fiber core of the DBR cavity gain fiber when passing through the fiber core to provide laser gain; and single longitudinal mode laser oscillation is formed and output under the action of a short-length DBR resonant cavity formed by the DBR cavity high-reflectivity fiber bragg grating and the DBR cavity output fiber bragg grating.
Description
Technical Field
The invention relates to the field of lasers, in particular to a DBR (distributed Bragg reflector) short-cavity single-frequency fiber laser of a multimode semiconductor pump source cladding pump.
Background
The single longitudinal mode fiber laser has extremely narrow spectral line width, so the single longitudinal mode fiber laser has excellent coherence, and simultaneously has good stability because the competition process among multiple longitudinal modes is eliminated, and has very important application in the fields of spectrum, coherent communication, precise measurement and the like. The Distributed Bragg Reflection (DBR) structure is one of the common technical means for realizing the single longitudinal mode operation of the optical fiber laser, realizes the single longitudinal mode operation of the laser by combining the narrow reflection bandwidth of the FBG distributed Bragg reflection with the large longitudinal mode interval of the short resonant cavity, and has the advantages of simple structure, high stability and the like[1]。
To achieve single longitudinal mode operation of a distributed bragg reflector fiber laser, the longitudinal mode spacing of the resonator is typically required to be greater than the reflection bandwidth of the fiber grating, and therefore shorter gain fibers must be used. This brings about a contradiction between pump absorption and stable single longitudinal mode operation: the absorption capacity of the short optical fiber to the pump light is limited, so that a single transverse mode pump source is generally adopted to correspondingly absorb a larger fiber core pump structure, thereby forming pump absorption exceeding a threshold value in the limited length of the optical fiber and realizing laser oscillation; however, the power of a single transverse mode semiconductor Laser (LD) pump source is often very limited, typically at the level of several hundred mW, which results in the output power of a single frequency fiber laser oscillator often being limited to the level of tens of mW[2](ii) a Although the multimode LD pump source can provide high pumping power, the overlapping of the corresponding cladding pumping structure pump light and the doped fiber core is low, the pumping absorption coefficient is low, and the high-efficiency operation of the single longitudinal mode laser is difficult to realize.
As can be seen from the above, the main factor limiting the output power of the DBR single longitudinal mode fiber laser is the contradiction between the fiber core pumping structure determined by the low pumping absorption of the short gain fiber and the low pumping power of the single transverse mode pump source. If the high-efficiency pumping of the short gain fiber in the DBR single longitudinal mode fiber laser can be realized by using the high-power multi-transverse mode pump source, enough input energy is provided for the DBR fiber laser, and the output power of the DBR single longitudinal mode fiber laser can be improved.
Reference to the literature
[1]S.Fu,et al.,"Single-frequency fiber laser at 1950nm based on thulium-doped silica fiber,"Opt.Lett.40,5283-5286(2015).
[2]S.Fu et al.,"Compact hundred-mW 2μm single-frequency thulium-doped silica fiber laser,"IEEE Photonics Technology Letters,29,853-856(2017).
Disclosure of Invention
The invention provides a DBR short-cavity single-frequency fiber laser of a multi-mode semiconductor pump source cladding pump, which utilizes a multi-transverse-mode LD pump source to carry out cladding pumping on a pump fiber laser with higher pump absorption, and fully utilizes the high power density of intracavity circulation to realize effective pumping on the DBR laser by placing a gain fiber of the DBR single-longitudinal-mode laser in a composite cavity mode in a resonant cavity of the pump fiber laser, thereby realizing high-power and high-efficiency operation of the DBR single-longitudinal-mode laser under the multi-transverse-mode LD pump, and the detailed description is as follows:
a multimode semiconductor pump-source cladding pumped DBR short cavity single frequency fiber laser, the fiber laser comprising: a multi-transverse-mode LD pump source,
the multi-transverse-mode LD pump source emits high-power multi-transverse-mode initial pump light in a pump gain fiber absorption band, and the initial pump light is coupled into a cladding of a double-cladding single-mode pump gain fiber through a pump signal beam combiner to carry out cladding pumping on the initial pump light;
the pump gain fiber absorbs initial pump light emitted by the LD pump source, and the generated intermediate pump light oscillates in an intermediate pump light resonant cavity formed by the first pump fiber grating and the second pump fiber grating;
the fiber core size of the DBR cavity gain fiber is consistent with that of the pump gain fiber and is positioned in the middle pump light resonant cavity, and the middle pump light is absorbed by the fiber core of the DBR cavity gain fiber when passing through the fiber core to provide laser gain;
and single longitudinal mode laser oscillation is formed and output under the action of a short-length DBR resonant cavity formed by the DBR cavity high-reflectivity fiber bragg grating and the DBR cavity output fiber bragg grating.
The absorption peak of the DBR cavity gain fiber is matched with the emission peak of the pumping gain fiber and is arranged in the middle pumping light resonant cavity to play a role in improving pumping absorption.
Further, the laser further includes:
and the cladding stripper is used for stripping the cladding pumping light which is not completely absorbed by the pumping gain fiber so as to improve the stability.
The laser further includes: and the output collimator and the end cap are used for collimating the output laser and protecting the end face of the optical fiber.
And the mode of coupling the multi-transverse-mode LD pump source into the pump gain fiber adopts beam combiner coupling or direct fusion coupling.
The multi-transverse-mode LD pump source is a multi-transverse-mode semiconductor laser coupled and output by an optical fiber; the pump gain fiber and the DBR cavity gain fiber are single-mode fibers, and the fiber core absorbs pump light passing through the single-mode fibers to generate laser gain.
The technical scheme provided by the invention has the beneficial effects that:
1. according to the invention, the double-cladding single-mode fiber is used for forming the intermediate pump of the DBR cavity single-longitudinal-mode fiber laser, so that the DBR cavity single-longitudinal-mode fiber laser can fully utilize a high-power multi-transverse-mode LD pump source, and the output power of the DBR cavity single-longitudinal-mode fiber laser is improved;
2. the gain fiber of the DBR cavity single longitudinal mode fiber laser is arranged in the resonant cavity of the middle pump laser, the high middle pump laser power of oscillation circulation in the gain fiber is fully utilized, the pump absorption is improved, the DBR cavity single longitudinal mode fiber laser can use the shorter gain fiber, the length of the resonant cavity is shortened, the longitudinal mode interval is increased, and the stability of single longitudinal mode operation is improved.
Drawings
FIG. 1 is a schematic diagram of the optical path of a multimode semiconductor pump source cladding pumped DBR short-cavity single-frequency fiber laser.
In the drawings, the components represented by the respective reference numerals are listed below:
1: a multi-transverse mode LD pump source; 2: a pump signal combiner;
3: a first pumped fiber grating; 4: a pump gain fiber;
5: a DBR cavity high-reflectivity fiber grating; 6: a DBR cavity gain fiber;
7: the DBR cavity outputs fiber bragg grating; 8: a second pumped fiber grating.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below.
Example 1
The embodiment of the invention provides a DBR short-cavity single-frequency fiber laser of multimode semiconductor pump source cladding pumping, which comprises: the device comprises a multi-transverse-mode LD pump source 1, a pump signal beam combiner 2, a first pump fiber grating 3, a pump gain fiber 4, a DBR cavity high-reflectivity fiber grating 5, a DBR cavity gain fiber 6, a DBR cavity output fiber grating 7 and a second pump fiber grating II;
wherein, the multi-transverse mode LD pump source 1 is a multi-transverse mode semiconductor laser with optical fiber coupling output, the wavelength is 980nm, and the optical fiber core diameter is 100 μm; the core diameter of a pumping optical fiber of the pumping signal beam combiner pump 2 is 100 mu m matched with a pumping source, and the signal optical fiber is a single-mode double-clad optical fiber; the first pumping fiber grating 3 has high reflection to the middle pumping light with the wavelength of 1570nm, and the reflectivity is more than 99%; the pump gain fiber 4 is erbium ytterbium co-doped fiber, the diameter of the fiber core and the diameter of the cladding are 6/125 μm and the length is 20m respectively, 980nm pump light emitted by the multi-transverse-mode LD pump source 1 is absorbed, and laser gain near 1.5 μm is provided; the DBR cavity highly reflective fiber grating 5 has high reflectivity to 1950nm wavelength, and the reflectivity is more than 99%; the DBR cavity gain fiber 6 is a thulium-doped (Tm) single-mode fiber, has the length of 1cm, absorbs 1570nm intermediate pump light and provides laser gain near 1950 nm; the DBR cavity output fiber grating 7 is partially transparent to 1950nm wavelength, and R is 50%; the second pump fiber grating 8 is highly reflective at an intermediate pump light wavelength of 1570 nm.
Initial 980nm pump light emitted by the multi-transverse-mode LD pump source 1 is coupled into a cladding of the pump gain fiber 4 through the pump signal beam combiner 2, and then is absorbed by ytterbium ions when passing through a fiber core of the pump gain fiber 4, and then the energy is transferred to erbium ions to generate laser gain with wavelength near 1.5 mu m, and when the laser gain exceeds the loss of a 1570nm middle pump light resonant cavity formed by the first pump fiber grating 3 and the second pump fiber grating 8, 1570nm laser is generated to oscillate in the resonant cavity; thulium ions in the DBR cavity gain fiber 6 absorb 1570nm intermediate pump light to generate 1950nm laser gain, and when the gain exceeds the loss of a DBR laser resonant cavity formed by the DBR cavity high-reflectivity fiber grating 5 and the DBR cavity output fiber grating 7, 1950nm laser is formed to oscillate in the resonant cavity and output through the DBR cavity output fiber grating 7.
Because 1570nm intermediate pump light generated by cladding pumping is introduced, the single longitudinal mode fiber laser can directly generate single longitudinal mode laser by using a high-power multi-transverse mode LD pump source; because the DBR cavity gain fiber 6 is positioned in the 1570nm middle pump light resonant cavity formed by the first pump fiber grating 3 and the second pump fiber grating 8, the 1570nm middle pump light incident to the DBR cavity gain fiber 6 has high power, the short DBR cavity gain fiber 6 is allowed to generate enough laser gain, and high-efficiency single longitudinal mode laser output is formed; meanwhile, the short DBR cavity gain optical fiber 6 is used, so that the longitudinal mode interval can be increased, and the stability of single longitudinal mode operation is improved.
Example 2
In the above embodiment 1, the pump gain fiber 4 may be an erbium-ytterbium co-doped fiber, or an erbium-doped, ytterbium-doped, thulium-doped fiber doped with other common luminescent rare earth ions; the DBR cavity gain fiber 6 may be a thulium-doped fiber, or may be another common light-emitting rare earth ion-doped fiber, as long as the absorption peak of the DBR cavity gain fiber matches with the emission peak of the pump gain fiber 4, which is not limited in the embodiment of the present invention.
Correspondingly, the wavelength of the multi-transverse-mode LD pump source 1 may be 980nm, or may be other wavelengths corresponding to the absorption peak of the pump gain fiber 4, which is not limited in this embodiment of the present invention.
In the embodiment of the present invention, except for the specific description of the model of each device, the model of other devices is not limited, as long as the device can perform the above functions.
Those skilled in the art will appreciate that the drawings are only schematic illustrations of preferred embodiments, and the above-described embodiments of the present invention are merely provided for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A multimode semiconductor pump-source cladding pumped DBR short cavity single frequency fiber laser, comprising: a multi-transverse-mode LD pump source,
the multi-transverse-mode LD pump source emits high-power multi-transverse-mode initial pump light in a pump gain fiber absorption band, and the initial pump light is coupled into a cladding of a double-cladding single-mode pump gain fiber through a pump signal beam combiner to carry out cladding pumping on the initial pump light;
the pump gain fiber absorbs initial pump light emitted by the LD pump source, and the generated intermediate pump light oscillates in an intermediate pump light resonant cavity formed by the first pump fiber grating and the second pump fiber grating;
the fiber core size of the DBR cavity gain fiber is consistent with that of the pump gain fiber and is positioned in the middle pump light resonant cavity, and the middle pump light is absorbed by the fiber core of the DBR cavity gain fiber when passing through the fiber core to provide laser gain;
and single longitudinal mode laser oscillation is formed and output under the action of a short-length DBR resonant cavity formed by the DBR cavity high-reflectivity fiber bragg grating and the DBR cavity output fiber bragg grating.
2. The DBR short-cavity single-frequency fiber laser of claim 1, wherein,
the absorption peak of the DBR cavity gain fiber is matched with the emission peak of the pumping gain fiber and is arranged in the middle pumping light resonant cavity, so that the pumping absorption is improved.
3. The multimode semiconductor pump-pumped, DBR short cavity single frequency fiber laser of claim 1, further comprising:
and the cladding stripper is used for stripping the cladding pumping light which is not completely absorbed by the pumping gain fiber so as to improve the stability.
4. The multimode semiconductor pump-pumped, DBR short cavity single frequency fiber laser of claim 1, further comprising:
and the output collimator and the end cap are used for collimating the output laser and protecting the end face of the optical fiber.
5. The DBR short-cavity single-frequency fiber laser of claim 1, wherein,
the mode of coupling the multi-transverse-mode LD pump source into the pump gain fiber adopts beam combiner coupling or direct fusion coupling.
6. The DBR short-cavity single-frequency fiber laser of claim 1, wherein,
the multi-transverse-mode LD pump source is a multi-transverse-mode semiconductor laser coupled and output by an optical fiber; the pump gain fiber and the DBR cavity gain fiber are single-mode fibers, and the fiber core absorbs pump light passing through the single-mode fibers to generate laser gain.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094445A (en) * | 2022-01-11 | 2022-02-25 | 武汉锐科光纤激光技术股份有限公司 | Light beam processor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236630A (en) * | 2013-05-05 | 2013-08-07 | 山东海富光子科技股份有限公司 | Single-frequency optical fiber laser using rare earth-doped quartz optical fiber as gain medium |
| CN103746279A (en) * | 2013-12-19 | 2014-04-23 | 北京工业大学 | Double-resonant-cavity all-fiber single-frequency laser device |
| CN107181159A (en) * | 2017-07-03 | 2017-09-19 | 山东大学 | All -fiber passive Q regulation pulse optical fiber laser |
| CN107623246A (en) * | 2016-07-14 | 2018-01-23 | 中国兵器装备研究院 | Fibre core is the same as band pumped optical fibre laser |
| CN109149330A (en) * | 2018-08-30 | 2019-01-04 | 华南理工大学 | A kind of 2 mu m waveband low noise narrow-line width single frequency optical fiber lasers |
| CN110620323A (en) * | 2019-10-31 | 2019-12-27 | 华南理工大学 | Neodymium-doped 1120nm single-frequency fiber laser |
-
2021
- 2021-01-22 CN CN202110090318.3A patent/CN112769029A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236630A (en) * | 2013-05-05 | 2013-08-07 | 山东海富光子科技股份有限公司 | Single-frequency optical fiber laser using rare earth-doped quartz optical fiber as gain medium |
| CN103746279A (en) * | 2013-12-19 | 2014-04-23 | 北京工业大学 | Double-resonant-cavity all-fiber single-frequency laser device |
| CN107623246A (en) * | 2016-07-14 | 2018-01-23 | 中国兵器装备研究院 | Fibre core is the same as band pumped optical fibre laser |
| CN107181159A (en) * | 2017-07-03 | 2017-09-19 | 山东大学 | All -fiber passive Q regulation pulse optical fiber laser |
| CN109149330A (en) * | 2018-08-30 | 2019-01-04 | 华南理工大学 | A kind of 2 mu m waveband low noise narrow-line width single frequency optical fiber lasers |
| CN110620323A (en) * | 2019-10-31 | 2019-12-27 | 华南理工大学 | Neodymium-doped 1120nm single-frequency fiber laser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094445A (en) * | 2022-01-11 | 2022-02-25 | 武汉锐科光纤激光技术股份有限公司 | Light beam processor |
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