CN204179478U - A kind of high power single mode 915 nm full-optical-fiber laser - Google Patents
A kind of high power single mode 915 nm full-optical-fiber laser Download PDFInfo
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- CN204179478U CN204179478U CN201420700051.0U CN201420700051U CN204179478U CN 204179478 U CN204179478 U CN 204179478U CN 201420700051 U CN201420700051 U CN 201420700051U CN 204179478 U CN204179478 U CN 204179478U
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Abstract
The utility model discloses a kind of high power single mode 915nm full-optical-fiber laser, it is characterized in that comprising 915nm single mode all-fiber master oscillator, 915nm all-fiber power amplifier, Laser output system, 915nm single mode all-fiber master oscillator output is connected with 915nm all-fiber power amplifier input, 915nm all-fiber power amplifier output is connected with Laser output system input, Laser output system exports 915nm single-mode high-power laser, the utility model has compact, compact conformation, wavelength stability is good, brightness is high, be easier to realize high efficiency between fiber laser system be coupled and the advantage such as integrated, for ytterbium-doping optical fiber laser and ytterbium doped optical fiber amplifier provide higher-quality pumping laser light source, optimize high power ytterbium-doping optical fiber laser and ytterbium doped optical fiber amplifier system, in industrial processes, defence and military, the fields such as medical treatment have important practical to be worth.
Description
Technical field
The utility model relates to a kind of high power near infrared laser, and especially a kind of high power single mode 915 nm full-optical-fiber laser based on main power amplification structure of shaking, belongs to optical fiber and laser technology field.
Background technology
Fiber laser take optical fiber as the laser of gain media, and wherein most widely used gain fibre is rare-earth doped optical fibre.And by using the gain fibre of the different rare earth element of doping, the operation wavelength of fiber laser can cover from ultraviolet to infrared broad range.Because fiber laser has simple and compact for structure, avoid safeguarding, low energy consumption, high conversion efficiency, high stability, the distinct advantage such as high light beam quality, so it is in communication, medical science, military, the aspects such as materials processing have a wide range of applications.High-capacity optical fiber laser based on main power amplification structure of shaking can on the basis keeping the above advantage of fiber laser, Output of laser power is amplified, and not destroying seed laser quality, this makes it all have important application in multiple fields such as laser processing, laser radar, laser display, medical treatment, national defense and military.
Take Yb dosed optical fiber as fiber laser and the amplifier of gain media be the Active Optical Fiber system that can obtain maximum power output at present, near 915 nm, Yb dosed optical fiber has higher absorption interface and Absorber Bandwidth, and 915 conventional at present nm high-power semiconductor lasers are multimode laser.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, utilizes neodymium-doped fiber for gain media, a kind of high power single mode 915 nm full-optical-fiber laser being used as ytterbium-doping optical fiber laser/amplifier pumping source provided by master oscillation power amplification structure.
The utility model is realized by the following technical programs.
A kind of high power single mode 915 nm full-optical-fiber laser, it is characterized in that comprising 915 nm single mode all-fiber master oscillators 1,915 nm all-fiber power amplifiers 2, Laser output system 3,915 nm single mode all-fiber master oscillator 1 outputs are connected with 915 nm all-fiber power amplifier 2 inputs, 915 nm all-fiber power amplifier 2 outputs are connected with Laser output system 3 input, and Laser output system 3 exports 915 nm single-mode high-power laser.
915 nm single mode all-fiber master oscillators 1 described in the utility model comprise 808 nm semiconductor pump lasers 11, 808 nm semiconductor pump lasers 11 export the pumping input phase welding of tail optical fiber and 808/915 nm optical fibre wavelength division multiplexer 12, the signal input part of optical fibre wavelength division multiplexer 12 is cut sth. askew, the signal output part of 808/915 nm optical fibre wavelength division multiplexer 12 is fused on high reflectance band optical fiber Bragg grating 13, the other end of high reflectance band optical fiber Bragg grating 13 is then welded together with neodymium-doped fiber 14, the other end and the welding of antiradar reflectivity narrow band fiber Bragg grating 15 phase of neodymium-doped fiber 14, to form resonant cavity, welding afterwards 915 nm optical isolator 16.
Described in the utility model and 915 nm all-fiber power amplifiers 2, be made up of single-stage fiber amplifier or multi-stage fiber amplifier cascade, wherein every one-level fiber amplifier comprises the pumping end that 808 nm single mode semiconductor laser arrays 21 are fused to optical-fiber bundling device 22 or 808/915 nm optical fibre wavelength division multiplexer 22, and the signal output part of bundling device or wavelength division multiplexer and the welding of neodymium-doped fiber 23 phase, equal welding 915 nm optical isolators 24 between the fiber amplifier that every two-stage is connected.
Described in the utility model and Laser output system 3, comprise a cladding mode stripper 31, its one end is connected with previous stage fiber amplifier, other end welding output collimator 32, with output high-power single mode 915 nm laser.
915 nm single mode all-fiber master oscillators 1 described in the utility model use the curved design of high quality optical fiber grating and neodymium-doped fiber to guarantee the starting of oscillation of 915 nm laser, realize the Laser output of 915 nm, and by coated high refractive index medium on the doubly clad optical fiber of removing coat and surrounding layer in systems in which in described Laser output system 3, the cladding mode stripper 31 of zlasing mode in filtering covering.
The utility model has the advantages that and realize 915 nm high power single mode full-optical-fiber lasers based on master oscillation power amplification structure, there is compact, compact conformation, wavelength stability is good, brightness is high, be easier to realize high efficiency between fiber laser system be coupled and the advantage such as integrated, for ytterbium-doping optical fiber laser and ytterbium doped optical fiber amplifier provide higher-quality pumping laser light source, optimize high power ytterbium-doping optical fiber laser and ytterbium doped optical fiber amplifier system, have important practical to be worth in fields such as industrial processes, defence and military, medical treatment.
Accompanying drawing explanation
Fig. 1 is a kind of structured flowchart of the present utility model.
Fig. 2 is a kind of structural representation of the utility model intermediate power amplifier.
Fig. 3 is the another kind of structural representation of the utility model intermediate power amplifier.
Fig. 4 is another structural representation of the utility model intermediate power amplifier.
Mark in figure: 915 nm single mode all-fiber master oscillator 1,915 nm all-fiber power amplifiers 2, Laser output system 3; 808 nm semiconductor pump lasers 11,808/915 nm optical fibre wavelength division multiplexer 12, high reflectance Fiber Bragg Grating FBG 13, neodymium-doped fiber 14, antiradar reflectivity Fiber Bragg Grating FBG 15,915 nm optical isolator 16,808 nm semiconductor pump laser arrays 21, optical-fiber bundling device 22 or 808/915 nm optical fibre wavelength division multiplexer 22, neodymium-doped fiber 23,915 nm optical isolators 24, cladding mode stripper 31, output collimator 32.
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described:
As shown in Figure 1, a kind of high power single mode 915 nm full-optical-fiber laser being used as ytterbium-doping optical fiber laser/amplifier pumping source, it is characterized in that comprising 915 nm single mode all-fiber master oscillators 1,915 nm all-fiber power amplifiers 2, Laser output system 3,915 nm single mode all-fiber master oscillator 1 outputs are connected with 915 nm all-fiber power amplifier 2 inputs, 915 nm all-fiber power amplifier 2 outputs are connected with Laser output system 3 input, and Laser output system 3 exports 915 nm single-mode high-power laser, 915 described nm single mode all-fiber master oscillators 1, comprise 808 nm semiconductor pump lasers 11, it exports the pumping input phase welding of tail optical fiber and 808/915 nm optical fibre wavelength division multiplexer 12, the signal input part of optical fibre wavelength division multiplexer 12 is cut sth. askew, the signal output part of 808/915 nm optical fibre wavelength division multiplexer 12 is fused on high reflectance band optical fiber Bragg grating 13, the other end of high reflectance band optical fiber Bragg grating 13 is then welded together with neodymium-doped fiber 14, the other end and the welding of antiradar reflectivity narrow band fiber Bragg grating 15 phase of neodymium-doped fiber 14, form resonant cavity, welding afterwards 915 nm optical isolator 16, 915 described nm all-fiber power amplifiers 2, can be single-stage fiber amplifier or multi-stage fiber amplifier cascade composition, wherein every one-level fiber amplifier comprises the pumping end that 808 nm single mode semiconductor laser arrays 21 are fused to optical-fiber bundling device 22 or 808/915 nm optical fibre wavelength division multiplexer 22, and the signal output part of bundling device or wavelength division multiplexer and the welding of neodymium-doped fiber 23 phase, equal welding 915 nm optical isolators 24 between the fiber amplifier that every two-stage is connected, described Laser output system 3, comprise a cladding mode stripper 31, its one end is connected with previous stage fiber amplifier, other end welding output collimator 32, output high-power single mode 915 nm laser, the utility model has compact, compact conformation, wavelength stability is good, brightness is high, be easier to realize high efficiency between fiber laser system be coupled and the advantage such as integrated, for ytterbium-doping optical fiber laser and ytterbium doped optical fiber amplifier provide higher-quality pumping laser light source, optimize high power ytterbium-doping optical fiber laser and ytterbium doped optical fiber amplifier system, in industrial processes, defence and military, the fields such as medical treatment have important practical to be worth.
Claims (6)
1. a high power single mode 915 nm full-optical-fiber laser, it is characterized in that comprising 915 nm single mode all-fiber master oscillators, 915 nm all-fiber power amplifiers, Laser output system, 915 nm single mode all-fiber master oscillator outputs are connected with 915 nm all-fiber power amplifier input, 915 nm all-fiber power amplifier output are connected with Laser output system input, and Laser output system exports 915 nm single-mode high-power laser.
2. a kind of high power single mode 915 nm full-optical-fiber laser according to claim 1, it is characterized in that 915 nm single mode all-fiber master oscillators comprise 808 nm semiconductor pump lasers, 808 nm semiconductor pump lasers export the pumping input phase welding of tail optical fibers and 808/915 nm optical fibre wavelength division multiplexer, the signal input part of optical fibre wavelength division multiplexer is cut sth. askew, the signal output part of 808/915 nm optical fibre wavelength division multiplexer is fused on high reflectance band optical fiber Bragg grating, the other end of high reflectance band optical fiber Bragg grating is then welded together with neodymium-doped fiber, welding 915 nm optical isolator after the other end of neodymium-doped fiber and the welding of antiradar reflectivity narrow band fiber Bragg grating phase.
3. a kind of high power single mode 915 nm full-optical-fiber laser according to claim 1, it is characterized in that 915 nm all-fiber power amplifiers are made up of single-stage fiber amplifier or multi-stage fiber amplifier cascade, wherein every one-level fiber amplifier comprises the pumping end that 808 nm single mode semiconductor laser arrays are fused to optical-fiber bundling device or 808/915 nm optical fibre wavelength division multiplexer, signal output part and the welding of neodymium-doped fiber phase of bundling device or wavelength division multiplexer, equal welding 915 nm optical isolators between the fiber amplifier that every two-stage is connected.
4. a kind of high power single mode 915 nm full-optical-fiber laser according to claim 1, it is characterized in that Laser output system comprises a cladding mode stripper, its one end is connected with previous stage fiber amplifier, other end welding output collimator.
5. a kind of high power single mode 915 nm full-optical-fiber laser according to claim 1, it is characterized in that 808 nm semiconductor pump lasers are for band tail optical fiber multimode or single mode semiconductor laser, operation wavelength is 808 nm.
6. a kind of high power single mode 915 nm full-optical-fiber laser according to claim 1, is characterized in that 915 nm all-fiber power amplifiers adopt forward pumping mode or backward pumping mode or positive and negative two directional pump mode to the pumping of neodymium-doped fiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420700051.0U CN204179478U (en) | 2014-11-20 | 2014-11-20 | A kind of high power single mode 915 nm full-optical-fiber laser |
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| CN201420700051.0U CN204179478U (en) | 2014-11-20 | 2014-11-20 | A kind of high power single mode 915 nm full-optical-fiber laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362498A (en) * | 2014-11-20 | 2015-02-18 | 山东海富光子科技股份有限公司 | High-power single-mode 915-nm all-fiber laser |
| CN106816806A (en) * | 2017-03-07 | 2017-06-09 | 深圳市杰普特光电股份有限公司 | Optical fiber laser |
-
2014
- 2014-11-20 CN CN201420700051.0U patent/CN204179478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362498A (en) * | 2014-11-20 | 2015-02-18 | 山东海富光子科技股份有限公司 | High-power single-mode 915-nm all-fiber laser |
| CN106816806A (en) * | 2017-03-07 | 2017-06-09 | 深圳市杰普特光电股份有限公司 | Optical fiber laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-power single-mode 915-nm all-fiber laser Effective date of registration: 20151016 Granted publication date: 20150225 Pledgee: Weihai commercial bank Limited by Share Ltd Pledgor: Shandong Haifu Photon Technology Co., Ltd. Registration number: 2015990000870 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171107 Granted publication date: 20150225 Pledgee: Weihai commercial bank Limited by Share Ltd Pledgor: Shandong Haifu Photon Technology Co., Ltd. Registration number: 2015990000870 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-power single-mode 915-nm all-fiber laser Effective date of registration: 20171107 Granted publication date: 20150225 Pledgee: Weihai City Commercial Bank Limited by Share Ltd high tech branch Pledgor: Shandong Haifu Photon Technology Co., Ltd. Registration number: 2017990001036 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211014 Granted publication date: 20150225 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. high tech branch Pledgor: HFB Photonics Co.,Ltd. Registration number: 2017990001036 |