CN105140763B - A kind of all -fiber high-capacity optical fiber laser - Google Patents
A kind of all -fiber high-capacity optical fiber laser Download PDFInfo
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- CN105140763B CN105140763B CN201510556817.1A CN201510556817A CN105140763B CN 105140763 B CN105140763 B CN 105140763B CN 201510556817 A CN201510556817 A CN 201510556817A CN 105140763 B CN105140763 B CN 105140763B
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Abstract
A kind of all -fiber high-capacity optical fiber laser, including positive bundling device, doped fiber light path module, reversed bundling device, end cap, the first pump laser and the second pump laser, only there are two fusion points in entire optical path.The present invention is by being integrated in doped fiber light path module for multiple devices, laser oscillation grade and amplifying stage can be obtained on same doped fiber, effectively reduce fusion point number, fiber core light caused by avoiding because of welding is revealed and because light light conversion efficiency caused by revealing reduces and fusion point heating problem, and both-end pumping structure can be directlyed adopt, improve output power.
Description
Technical field
The present invention relates to a kind of all -fiber high-capacity optical fiber lasers, belong to photoelectron technical field.
Background technique
Full-optical-fiber laser has compact-sized, perfect heat-dissipating, high conversion efficiency, beam quality excellent and performance is stablized
The advantages that receive significant attention.With the development of high-power semiconductor laser technology and doubly clad optical fiber invention, greatly improve
Optical fiber laser output power level adds magnification scheme by laser generation grade so far, and having been carried out single fiber output has well
The multikilowatt full-optical-fiber laser of beam quality, and beam technology is closed by light beam, the output power of high-capacity optical fiber laser is
It is each to be widely used in automobile manufacture, shipping industry, railway locomotive manufacture, military processing, metal material processing etc. for super myriawatt
Industrial processes industry, and constantly expanded to more extensive application field.
It is general to form vibration using by each discrete device welding in all -fiber kilowatt level optical fiber laser reported at present
A grade kilowatt output grade high power is swung, such as document " Experimental study on kilowatt fiber laser in an
All-fiber configuration " (Chinese Optics Letters, Vol.8,021404-1) and document " the full light of 1kW
Fibre laser experimental study " (" laser and infrared " Vol.42,1127-1130), or using each discrete device welding composition vibration
It swings grade and adds amplifying stage kilowatt output grade high power, such as document " 1.1kW Ytterbium Monolithic Fiber Laser
with Assembled End-pump Scheme to Couple High Brightness Single Emitters》
(IEEE Photonics Technology Letters, VOL.23,697-699).In these schemes, the welding meeting of device
Lead to occur multiple fusion points in entire optical path, each fusion point fever and signal light are leaked to covering and become restriction promotion all -fiber
One of multikilowatt laser output power, light light conversion efficiency and the key factor for deteriorating beam quality.
Document " 1-kilowatt CW all-fiber laser oscillator pumped with wavelength
Beam-combined diode stacks " (Optics Express, Vol.20,3296-3301) using by high reflective fine light
Grid and forward pumping bundling device merge into a device and a device are merged into cladding light stripper, output raster stage end face
Oscillator stage fusion point is reduced to two by part, obtains the output of multikilowatt high power single oscillator stage optical fiber laser.But this scheme
Two Active Optical Fibers and passive fiber fusion point are still had intracavitary, laser can be in two weldings in intracavitary multiple roundtrip
Fever and leakage signal light are pointed out, and this scheme is only used for unidirectionally pumping and single oscillator stage.
Summary of the invention
Technical problem solved by the present invention is having overcome the deficiencies of the prior art and provide a kind of all -fiber high-power fiber
Laser, this laser weldless point between oscillator stage and amplifying stage are conducive to obtain high power.
The technical solution of the invention is as follows: a kind of all -fiber high-capacity optical fiber laser, including positive bundling device, doping
Optic fibre light path module, reversed bundling device, end cap, the first pump laser and the second pump laser；
The forward direction bundling device includes N number of pumping input optical fibre, a signal input optical fibre and a signal output optical fibre,
Wherein the pumping input optical fibre of positive bundling device and signal input optical fibre are ipsilateral, and the second pump laser welding is in positive bundling device
Pumping input optical fibre on；
Reversed bundling device includes N number of pumping input optical fibre, a signal input optical fibre and a signal output optical fibre, wherein
The pumping input optical fibre and signal output optical fibre of reversed bundling device are ipsilateral, pump of the first pump laser welding in reversed bundling device
On the input optical fibre of Pu, end cap is made on the signal output optical fibre of reversed bundling device；
Doped fiber light path module includes that doped fiber, cladding light stripper, antiradar reflectivity grating and high reflectance are double
Covering grating；One end welding of the signal output optical fibre of positive bundling device and doped fiber pumps, the other end of doped fiber with
The signal input optical fibre welding pumping of reversed bundling device；
High reflectance double clad grating is engraved on the signal output optical fibre of doped fiber or positive bundling device, antiradar reflectivity light
Grid are engraved on the middle part of doped fiber, and cladding light stripper is produced on doped fiber, cladding light stripper and antiradar reflectivity grating
The distance between be greater than 10cm, be less than 1m；
For the reflectivity of the antiradar reflectivity grating less than 30%, the reflectivity of high reflectance double clad grating is greater than 99%.
The cladding light stripper bears signal light power and is greater than 500W, can strip pump power greater than 50W, strip efficiency
Greater than 13dB；
The doped fiber is double clad or how clad doped optical fiber, and inner cladding diameter is 200-800 microns, core diameter
It is 20-80 microns, fibre core doping with rare-earth ions is ytterbium, erbium, combination one or more in thulium.
It is described forward direction bundling device signal output optical fibre and reversed bundling device signal input optical fibre cladding diameter with
The cladding diameter of doped fiber is identical in doped fiber light path module, and the core diameter of reversed bundling device signal input optical fibre is greater than
Or the core diameter equal to doped fiber.
If high reflectance double clad grating is located in doped fiber light path module, the signal output optical fibre of positive bundling device
Doped fiber between high reflectance double clad grating is no more than 50cm, the core diameter of positive bundling device signal output optical fibre
More than or equal to the core diameter of doped fiber；
If high reflectance double clad grating is engraved on the signal output optical fibre of positive bundling device, positive bundling device signal is defeated
The core diameter of optical fiber is equal to the core diameter of doped fiber out.
Positive bundling device is less than 0.2dB to the insertion loss of the second pump laser output laser, and reversed bundling device is to logical
The insertion loss for crossing the signal laser of the signal input optical fibre input of reversed bundling device is less than 0.1dB.
The advantages of the present invention over the prior art are that:
(1) present invention is directly reduced by the way that antiradar reflectivity grating, cladding light stripper etc. to be integrated on doped fiber
Fusion point number is reduced because Active Optical Fibers multiple in multiple optical fiber fusion welding points, especially resonant cavity and passive fiber welding are led
The signal light of cause is revealed and heating problem.
(2) present invention is by being integrated to a doped fiber for oscillator stage and amplifying stage, and is pumped by forward and backward,
Effectively improve output power.
(3) present invention is by the way that high power cladding power stripper to be made near antiradar reflectivity grating, and guarantees covering
Photospallation device bears signal light power and is greater than 500W, can strip pump power greater than 50W, strip efficiency greater than 13dB, Neng Goufang
Only cladding light enters the first pump laser and the second pump laser, to avoid pumping the first pump laser and second
The damage that laser may cause, ensure that laser device reliability.
(4) if high reflectance double clad grating is located in doped fiber light path module in the present invention, positive bundling device
The cladding diameter of the signal input optical fibre of signal output optical fibre and reversed bundling device is identical as the cladding diameter of doped fiber, positive
The core diameter of bundling device signal output optical fibre is greater than or equal to the core diameter of doped fiber, effectively prevents pump light and letter
Number light improves the output power of signal light in the leakage of fusion point.
(5) positive if high reflectance double clad grating is located on the signal output optical fibre of positive bundling device in the present invention
The core diameter of bundling device signal output optical fibre is equal to the core diameter of doped fiber, avoids letter caused by mismatching because of mould field
The leakage of number light and fusion point fever, and improve efficiency.
Detailed description of the invention
Fig. 1 high-capacity optical fiber laser structural schematic diagram；
Fig. 2 doped fiber light path module schematic diagram；
Fig. 3 forward direction bundling device schematic diagram；
The reversed bundling device schematic diagram of Fig. 4.
Specific embodiment
As shown in Figure 1, a kind of all -fiber high-capacity optical fiber laser, including positive bundling device 11, doped fiber optical path mould
Block 12, reversed bundling device 13, end cap 14, the first pump laser 15, the second pump laser 16；
The forward direction bundling device 11 includes N number of pumping input optical fibre 33, and a signal input optical fibre 31 and a signal are defeated
Optical fiber 32 out, wherein pumping input optical fibre 33 and signal input optical fibre 31 are ipsilateral, 16 welding of the second pump laser is defeated in pumping
Enter on optical fiber 33；
Reversed bundling device 13 includes N number of pumping input optical fibre 34, a signal input optical fibre 35 and a signal output light
Fibre 36, wherein pumping input optical fibre 34 and signal output optical fibre 36 are ipsilateral, 15 welding of the first pump laser is in reversed bundling device
On 13 pumping input optical fibre 34, end cap 14 is made on the signal output optical fibre 36 of reversed bundling device 13.
As shown in Fig. 2, doped fiber light path module 12 includes doped fiber 21, cladding light stripper 22, antiradar reflectivity light
Grid 23, high reflectance double clad grating 24, high reflectance double clad grating 24 are engraved on the letter of doped fiber or positive bundling device 11
On number output optical fibre, reflectivity is greater than 99%.Antiradar reflectivity grating 23 is directly engraved on 21 middle part of doped fiber, and reflectivity is less than
30%, cladding light stripper 22, covering photospallation are made directly on doped fiber before or after antiradar reflectivity grating 23
The distance between device 22 and antiradar reflectivity grating 23 are greater than 10cm, are less than 1m.It is big that cladding light stripper can bear signal light power
In 500W, pump power can be stripped greater than 50W, strip efficiency greater than 13dB.High-capacity optical fiber laser uses both-end pumping knot
Structure, oscillator stage are pumped using the signal output optical fibre 32 and 12 welding of doped fiber light path module of positive bundling device 11, amplifying stage
It is pumped using the signal input optical fibre 35 of reversed bundling device 13 and 12 welding of doped fiber light path module.Superpower laser oscillation
Grade and amplifying stage are on same root doped fiber, weldless point in doped fiber optical path 12.If high reflectance double clad grating 24
In doped fiber light path module 12, then the doped fiber between positive bundling device 11 and high reflectance double clad grating 24 is not
More than 50cm, the cladding diameter of the signal input optical fibre 35 of the signal output optical fibre 32 and reversed bundling device 13 of positive bundling device 11
It is identical as the cladding diameter of doped fiber 21 in doped fiber light path module 12, the signal output optical fibre 32 of positive bundling device 11
Core diameter be greater than or equal to doped fiber 21 core diameter, the core diameter of reversed 13 signal input optical fibre 35 of bundling device
More than or equal to the core diameter of doped fiber 21.
If high reflectance double clad grating 24 is engraved on the signal output optical fibre 32 of positive bundling device 11, positive bundling device 11
Signal output optical fibre 32 directly with 12 welding of doped fiber light path module.The signal output optical fibre 32 of positive bundling device 11 and anti-
To covering of the cladding diameter with doped fiber 21 in doped fiber light path module 12 of the signal input optical fibre 35 of bundling device 13
Diameter is identical, and the core diameter of the signal output optical fibre 32 of positive bundling device 11 is equal to the core diameter of doped fiber 21, reversely
The core diameter of 13 signal input optical fibre 35 of bundling device is greater than or equal to the core diameter of doped fiber 21.Positive bundling device 11 is right
The insertion loss that second pump laser 16 exports laser is less than 0.2dB, insertion loss of the reversed bundling device 13 to signal laser
Less than 0.1dB.
Embodiment:
A kind of all -fiber high-capacity optical fiber laser, including positive bundling device 11, doped fiber light path module 12, reversed conjunction
Beam device 13, end cap 14, the first pump laser 15, the second pump laser 16.
As shown in figure 3, positive bundling device 11 includes that 6 multimodes pump input optical fibre 33,31 He of signal input optical fibre
One signal output optical fibre 32, wherein pumping input optical fibre 33 and signal input optical fibre 31 are ipsilateral, the second pump laser 16 is molten
It connects on pumping input optical fibre 33.As shown in figure 4, reversed bundling device 13 includes that 6 multimodes pump input optical fibre 34, a signal
Input optical fibre 35 and a signal output optical fibre 36, wherein pumping input optical fibre 34 and signal output optical fibre 36 are ipsilateral, the first pump
For 15 welding of Pu laser on the pumping input optical fibre 34 of reversed bundling device 13, end cap 14 is made in the signal of reversed bundling device 13
On output optical fibre 36.
Entire optical path includes only two fusion points 17 on oscillator stage and amplifying stage.Doped fiber light path module 12 includes
Doped fiber 21, cladding light stripper 22, antiradar reflectivity grating 23, high reflectance double clad grating 24.High reflectance double clad
Grating 24 is engraved on doped fiber 21.Doped fiber 21 is Double Cladding Ytterbium Doped Fiber, and inner cladding diameter is 400 microns, and fibre core is straight
Diameter is 20 microns, length 35m.24 reflectivity of high reflectance double clad grating is 99.3%, and antiradar reflectivity grating 23 is away from high anti-
Penetrate rate double clad grating 20m, reflectivity 9.4%.Cladding light stripper 22, cladding light are made before antiradar reflectivity grating 23
The distance between stripper 22 and antiradar reflectivity grating 23 are 20cm.The cladding light stripper 22 of production can bear signal light power
For 1000W, can strip cladding light power is 200W, and stripping efficiency is 13.6dB.It is pumped, is vibrated using both-end pumping structure
Grade is pumped using positive bundling device 11 with 12 welding of doped fiber light path module, and amplifying stage uses reversed bundling device 13 and mixes
12 welding of veiling glare fibre light path module pumping.Doped fiber between positive bundling device 11 and high reflectance double clad grating 24 is
10cm.Positive bundling device 11 and reversed bundling device 13 separately include 6 multimode pumping input optical fibres 33,34, positive bundling device 11
Insertion loss to the output of the second pump laser 16 is 0.1dB, and reversed bundling device 13 is inputted to by signal input optical fibre 35
Signal laser insertion loss be 0.05dB.
Multimode pumps the covering of input optical fibre 33 and multimode pumping input optical fibre 34 and core diameter is respectively 220 and 200
Micron.Signal input optical fibre 31, signal output optical fibre 32, the cladding diameter of signal input optical fibre 35 and signal output optical fibre 36 are equal
Identical as the cladding diameter of doped fiber 21, core diameter is 30um.First pump laser 15 and the second pump laser
16 are all made of the 976nm fiber coupled laser diode that peak power output is 180W, the semiconductor laser output coupling
Fibre cladding and core diameter are respectively 220 and 200 microns.
The present invention can obtain laser on same doped fiber by the way that multiple devices are integrated in doped fiber light path module
Device oscillator stage and amplifying stage effectively reduce fusion point number, and fiber core light caused by avoiding because of welding is revealed and because leakage is led
The light light conversion efficiency of cause reduces and fusion point heating problem, and can directly adopt both-end pumping structure, improves output power.
It is specific implementation of the patent mode above, it is not limited to such embodiment.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (6)
1. a kind of all -fiber high-capacity optical fiber laser, it is characterised in that: including positive bundling device (11), doped fiber optical path mould
Block (12), reversed bundling device (13), end cap (14), the first pump laser (15) and the second pump laser (16)；
The forward direction bundling device (11) includes N number of pumping input optical fibre, a signal input optical fibre and a signal output optical fibre,
Wherein the pumping input optical fibre and signal input optical fibre of positive bundling device (11) are ipsilateral, and the second pump laser (16) welding is just
To on the pumping input optical fibre of bundling device (11)；
Reversed bundling device (13) includes N number of pumping input optical fibre, a signal input optical fibre and a signal output optical fibre, wherein
The pumping input optical fibre and signal output optical fibre of reversed bundling device (13) are ipsilateral, and (15) welding of the first pump laser is reversely being closed
On the pumping input optical fibre of beam device (13), end cap (14) is made on the signal output optical fibre of reversed bundling device (13)；
Doped fiber light path module (12) include doped fiber (21), cladding light stripper (22), antiradar reflectivity grating (23) with
And high reflectance double clad grating (24)；The signal output optical fibre of positive bundling device (11) and one end welding of doped fiber (21)
Pumping, the other end of doped fiber (21) and the signal input optical fibre welding of reversed bundling device (13) pump；
High reflectance double clad grating (24) is engraved on doped fiber (21) or the signal output optical fibre of positive bundling device (11), low
Reflective gratings (23) are engraved on the middle part of doped fiber (21), and cladding light stripper (22) is produced on doped fiber (21), packet
The distance between layer photospallation device (22) and antiradar reflectivity grating (23) is greater than 10cm, is less than 1m；
Less than 30%, the reflectivity of high reflectance double clad grating (24) is greater than the reflectivity of the antiradar reflectivity grating (23)
99%.
2. a kind of all -fiber high-capacity optical fiber laser according to claim 1, it is characterised in that: the covering photospallation
Device (22) bears signal light power and is greater than 500W, can strip pump power greater than 50W, strip efficiency greater than 13dB.
3. a kind of all -fiber high-capacity optical fiber laser according to claim 1 or 2, it is characterised in that: the doping light
Fine (21) are double clad or how clad doped optical fiber, and inner cladding diameter is 200-800 microns, and core diameter is 20-80 microns,
Fibre core doping with rare-earth ions is ytterbium, erbium, combination one or more in thulium.
4. a kind of all -fiber high-capacity optical fiber laser according to claim 1, it is characterised in that: the forward direction bundling device
(11) cladding diameter of the signal input optical fibre of signal output optical fibre and reversed bundling device (13) with doped fiber optical path mould
The cladding diameter of doped fiber (21) is identical in block (12), the core diameter of reversed bundling device (13) signal input optical fibre be greater than or
Equal to the core diameter of doped fiber (21).
5. a kind of all -fiber high-capacity optical fiber laser according to claim 4, it is characterised in that: if high reflectance double-contracting
Layer grating (24) is located in doped fiber light path module (12), then the signal output optical fibre and high reflectance of positive bundling device (11)
Doped fiber between double clad grating (24) is no more than 50cm, and the core diameter of positive bundling device (11) signal output optical fibre is big
In or be equal to doped fiber (21) core diameter；
If high reflectance double clad grating (24) is engraved on the signal output optical fibre of positive bundling device (11), positive bundling device
(11) core diameter of signal output optical fibre is equal to the core diameter of doped fiber (21).
6. a kind of all -fiber high-capacity optical fiber laser according to claim 1, it is characterised in that: positive bundling device (11)
0.2dB is less than to the insertion loss of the second pump laser (16) output laser, reversed bundling device (13) is to by reversely closing beam
The insertion loss of the signal laser of the signal input optical fibre input of device (13) is less than 0.1dB.
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092124B (en) * | 2017-10-30 | 2019-12-06 | 北京航天控制仪器研究所 | Optical fiber laser |
| CN107732641A (en) * | 2017-11-10 | 2018-02-23 | 山东大学 | High-capacity optical fiber laser |
| CN108562976B (en) * | 2018-03-31 | 2020-04-24 | 深圳市创鑫激光股份有限公司 | High-power laser coupler and assembling method thereof |
| CN109217098B (en) * | 2018-10-29 | 2019-10-15 | 中国人民解放军国防科技大学 | Method for Suppressing Stimulated Raman Scattering by Fiber Laser Oscillator |
| WO2020264126A1 (en) * | 2019-06-27 | 2020-12-30 | Nlight, Inc. | Reverse pumped fiber amplifier with cladding light stripper between segments of active fiber |
| CN110299663B (en) * | 2019-07-29 | 2021-06-25 | 华中科技大学鄂州工业技术研究院 | All-fiber dual-wavelength pump thulium-doped fiber laser |
| CN112859255A (en) * | 2019-11-28 | 2021-05-28 | 讯芯电子科技（中山）有限公司 | Optical communication module and manufacturing method thereof |
| CN113097843A (en) * | 2021-03-26 | 2021-07-09 | 中国人民解放军国防科技大学 | Integrated non-melting point high-efficiency optical fiber laser |
| CN113917608B (en) * | 2021-09-17 | 2022-11-15 | 上海飞博激光科技股份有限公司 | Optical fiber reverse beam combiner and preparation method thereof |
| CN113810119A (en) * | 2021-11-05 | 2021-12-17 | 青岛光盈光电技术有限责任公司 | Optical communication system of 5G forward transmission MWDM system |
| CN115064928A (en) * | 2022-06-21 | 2022-09-16 | 北京热刺激光技术有限责任公司 | Optical fiber laser and heat dissipation method |
| CN116260031B (en) * | 2022-12-31 | 2024-04-19 | 湖南大科激光有限公司 | Pump sharing type narrow linewidth fiber laser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009077636A1 (en) * | 2007-12-14 | 2009-06-25 | Corelase Oy | Means of coupling light into optical fibers and methods of manufacturing a coupler |
| CN103066482A (en) * | 2012-12-28 | 2013-04-24 | 清华大学 | Bidirectional pumping fiber laser |
| CN103490271A (en) * | 2013-09-03 | 2014-01-01 | 华中科技大学 | Optical fiber and fiber laser comprising optical fiber |
| CN203521884U (en) * | 2013-09-17 | 2014-04-02 | 武汉洛芙科技有限公司 | All-fiber 100W Tm doped fiber laser |
| CN104466630A (en) * | 2013-09-12 | 2015-03-25 | 中国兵器装备研究院 | High-power fiber laser |
-
2015
- 2015-09-02 CN CN201510556817.1A patent/CN105140763B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009077636A1 (en) * | 2007-12-14 | 2009-06-25 | Corelase Oy | Means of coupling light into optical fibers and methods of manufacturing a coupler |
| CN103066482A (en) * | 2012-12-28 | 2013-04-24 | 清华大学 | Bidirectional pumping fiber laser |
| CN103490271A (en) * | 2013-09-03 | 2014-01-01 | 华中科技大学 | Optical fiber and fiber laser comprising optical fiber |
| CN104466630A (en) * | 2013-09-12 | 2015-03-25 | 中国兵器装备研究院 | High-power fiber laser |
| CN203521884U (en) * | 2013-09-17 | 2014-04-02 | 武汉洛芙科技有限公司 | All-fiber 100W Tm doped fiber laser |
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