CN103199420A - Single-fiber simple-oscillator kilowatt-grade all-fiber laser - Google Patents
Single-fiber simple-oscillator kilowatt-grade all-fiber laser Download PDFInfo
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- CN103199420A CN103199420A CN201310138103XA CN201310138103A CN103199420A CN 103199420 A CN103199420 A CN 103199420A CN 201310138103X A CN201310138103X A CN 201310138103XA CN 201310138103 A CN201310138103 A CN 201310138103A CN 103199420 A CN103199420 A CN 103199420A
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Abstract
The invention discloses a single-fiber simple-oscillator kilowatt-grade all-fiber laser which comprises a pump laser, a pump combiner, a high power pumping signal combiner for a forward pump, a high reflection fiber bragg grating, a ytterbium-doped large-mode-field double-clad fiber, a low reflection fiber bragg grating, a high power pumping signal combiner for a backward pump, a cladding power filter, an output filter and a filter end cap. The laser is characterized in that the kilowatt-grade laser power output is realized through a primary optical oscillator. Compared with the kilowatt-grade all-fiber laser mainly based on an oscillation power amplification technology, the laser disclosed by the invention has high technical content, the structure is simpler, a power amplifier is not needed, expensive optical fiber devices such as an optical combiner and a large-core-diameter ytterbium-doped large-mode-area double-clad fiber can be omitted, the size of the laser disclosed by the invention is smaller, the cost is lower and is beneficial to industrialization; and further, in the aspect of the laser performance, amplified spontaneous emission (ASE) signal to noise ratio of laser signals output by a single optical oscillator is larger, the spectrum is cleaner, so that the laser is contributed to application to industrial processing field.
Description
Technical field
The present invention relates to a kind of fiber laser, especially a kind of single fiber list kilowatt magnitude full-optical-fiber laser that shakes belongs to optical fiber and laser technology field.
Background technology
Fiber laser relies on its volume little, in light weight, and hot spot is excellent, heat radiation easily, outstanding speciality such as cost is low, and is non-maintaining are just replacing the traditional industry laser in each main laser application, high power fiber laser becomes the state-of-the-art industrial processes laser of the third generation, kilowatt magnitude fiber laser particularly, its application has expanded to automobile making, shipbuilding, high-speed railway, engineering machinery, war industry equipment and aviation.Fiber laser just increases rapidly with the speed in every year 40 percent at the possession share in industrial lasers field.
Summary of the invention
Develop a kind of kilowatt of magnitude full-optical-fiber laser and its industrialization is had important economic benefit and social benefit, based on this, we have invented a kind of single fiber list kilowatt magnitude full-optical-fiber laser that shakes, and it realizes a kilowatt magnitude laser power output by one-level optical fiber oscillator.
The present invention is realized by the following technical programs.
A kind of single fiber list kilowatt magnitude full-optical-fiber laser that shakes, comprise pump laser 1, pump combiner 2, the high power pump signal bundling device 3 that is used for positive pump, high reflective fine grating 4, mix the big mould area double-cladding of ytterbium optical fiber 5, low reflective fine grating 6, the high power pump signal bundling device 7 that is used for anti-pump, covering power stripper 8, output optical fibre 9, optical fiber end cap 10, it is characterized in that: at least two pump lasers 1 close bundle output through pump combiner 2, pump combiner output and high power pump signal bundling device 3,7 pumping input connects, high power pump signal bundling device 3 outputs that are used for positive pump are connected with high reflective fine grating 4, the high reflective fine grating other end with mix 5 welding of the big mould area double-cladding of ytterbium optical fiber, mixing the big mould area double-cladding of the ytterbium optical fiber other end is connected with low reflective fine grating 6, the low reflective fine grating other end is welded together with the high power pump signal bundling device 7 that is used for anti-pump, high power pump signal bundling device 7 other ends are connected with covering power stripper 8, covering power stripper 9 other ends and output optical fibre 9 welding, and the output optical fibre other end is connected with optical fiber end cap 10, with by one-level optical fiber oscillator, realize a kilowatt magnitude laser power output.
Described pump laser 1 can be the semiconductor laser of magnetic tape trailer fibre, its operation wavelength is 915 nanometers, 940 nanometers or 978 nanometers, employed pump laser can also be ytterbium-doping optical fiber lasers, adopt with the band pump mode big core diameter yb-doped double-clad fiber is carried out pumping.
Described output optical fibre 9, output is molten quartz glass end cap 10, is 8 degree and is coated with the self-oscillatory flashlight antireflection film of inhibition with tilt angle and at end face.
The present invention compares with a kilowatt magnitude full-optical-fiber laser that swings power amplifier technology based on principal earthquake, technology content is higher, structure is simpler, need not power amplifier, save a lot of expensive optical fibre devices (as optical-fiber bundling device, big core diameter yb-doped double-clad fiber etc.), size is littler, cost is lower, be beneficial to industrialization, while laser performance aspect, laser signal spontaneous radiation (ASE) signal to noise ratio of single optical fiber oscillator output is bigger, and spectrum is cleaner, is conducive to it more and is applied to the industrial processes field, whole system has realized full optical fiber welding and full fiberize, working stability is reliable, has realized kilowatt magnitude full optical fiber laser output of shaking of single fiber list, and whole system has realized full optical fiber welding and full fiberize.
Description of drawings
Fig. 1 is a kind of structure chart diagram of the present invention.
Mark among the figure: pump laser 1, pump combiner 2, the high power pump signal bundling device 3 that is used for positive pump, high reflective fine grating 4, mix the big mould area double-cladding of ytterbium optical fiber 5, low reflective fine grating 6, be used for high power pump signal bundling device 7, covering power stripper 8, output optical fibre 9, the optical fiber end cap 10 of anti-pump.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of single fiber list kilowatt magnitude full-optical-fiber laser that shakes comprises pump laser 1, pump combiner 2, the high power pump signal bundling device 3 that is used for positive pump, high reflective fine grating 4 is mixed the big mould area double-cladding of ytterbium optical fiber 5, low reflective fine grating 6, the high power pump signal bundling device 7 that is used for anti-pump, covering power stripper 8, output optical fibre 9, optical fiber end cap 10.It is characterized in that: at least two pump lasers 1 close bundle output through pump combiner 2, pump combiner output and high power pump signal bundling device 3,7 pumping input connects, high power pump signal bundling device 3 outputs that are used for positive pump are connected with high reflective fine grating 4, the high reflective fine grating other end with mix 5 welding of the big mould area double-cladding of ytterbium optical fiber, mixing the big mould area double-cladding of the ytterbium optical fiber other end is connected with low reflective fine grating 6, the low reflective fine grating other end is welded together with the high power pump signal bundling device 7 that is used for anti-pump, the bundling device other end is connected with covering power stripper, the covering power stripper other end and output optical fibre 9 welding, the output optical fibre other end is connected with optical fiber end cap 10, the present invention realizes a kilowatt magnitude laser power output by one-level optical fiber oscillator.
Described pump laser 1 can be the semiconductor laser of magnetic tape trailer fibre, operation wavelength is 915 nanometers, 940 nanometers or 978 nanometers, employed pump laser can also be ytterbium-doping optical fiber lasers, adopt with the band pump mode big core diameter yb-doped double-clad fiber is carried out pumping.
Described output optical fibre 9, output is molten quartz glass end cap 10, is 8 degree and is coated with the self-oscillatory flashlight antireflection film of inhibition with tilt angle and at end face.
Claims (5)
1. a single fiber list kilowatt magnitude full-optical-fiber laser that shakes, comprise pump laser 1, pump combiner 2, the high power pump signal bundling device 3 that is used for positive pump, high reflective fine grating 4, mix the big mould area double-cladding of ytterbium optical fiber 5, low reflective fine grating 6, the high power pump signal bundling device 7 that is used for anti-pump, covering power stripper 8, output optical fibre 9, optical fiber end cap 10, it is characterized in that: at least two pump lasers 1 close bundle output through pump combiner 2, pump combiner output and high power pump signal bundling device 3,7 pumping input connects, high power pump signal bundling device 3 outputs that are used for positive pump are connected with high reflective fine grating 4, the high reflective fine grating other end with mix 5 welding of the big mould area double-cladding of ytterbium optical fiber, mixing the big mould area double-cladding of ytterbium optical fiber 5 other ends is connected with low reflective fine grating 6, low reflective fine grating 6 other ends are welded together with the high power pump signal bundling device 7 that is used for anti-pump, the high power pump signal bundling device other end is connected with covering power stripper, the covering power stripper other end and output optical fibre 9 welding, the output optical fibre other end is connected with optical fiber end cap 10.
2. by the described single fiber list of the claim 1 kilowatt magnitude full-optical-fiber laser that shakes, it is characterized in that by one-level optical fiber oscillator, realize a kilowatt magnitude laser power output.
3. by the described single fiber list of the claim 1 kilowatt magnitude full-optical-fiber laser that shakes, it is characterized in that the pump laser 1 of use is the semiconductor laser of magnetic tape trailer fibre, operation wavelength is 915 nanometers, 940 nanometers or 978 nanometers.
4. by the described single fiber list of the claim 1 kilowatt magnitude full-optical-fiber laser that shakes, it is characterized in that the pump laser 1 of use is ytterbium-doping optical fiber laser, adopt with the band pump mode big core diameter yb-doped double-clad fiber is carried out pumping.
5. by the described single fiber list of the claim 1 kilowatt magnitude full-optical-fiber laser that shakes, its characteristics are, described output optical fibre 9, and output is molten quartz glass end cap 10, is 8 degree and is coated with tilt angle and at end face and suppresses self-oscillatory flashlight antireflection film.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310138103XA CN103199420A (en) | 2013-04-22 | 2013-04-22 | Single-fiber simple-oscillator kilowatt-grade all-fiber laser |
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| CN201310138103XA CN103199420A (en) | 2013-04-22 | 2013-04-22 | Single-fiber simple-oscillator kilowatt-grade all-fiber laser |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103944043A (en) * | 2014-03-20 | 2014-07-23 | 天津欧泰激光科技有限公司 | In-band pumping 975-nanometer single-frequency fiber laser with ytterbium-doped silica optical fiber |
| CN104362496A (en) * | 2014-11-17 | 2015-02-18 | 山东海富光子科技股份有限公司 | High-power narrow-linewidth linear polarization fiber laser |
| CN104466630A (en) * | 2013-09-12 | 2015-03-25 | 中国兵器装备研究院 | High-power fiber laser |
| CN104852261A (en) * | 2015-06-05 | 2015-08-19 | 中国人民解放军国防科学技术大学 | High-power all-fiber MOPA structure superfluorescence fiber light source based on tandem pumping |
| CN106159656A (en) * | 2016-08-19 | 2016-11-23 | 光惠（上海）激光科技有限公司 | A kind of optical fiber laser of high-photoelectric transformation efficiency |
| CN106159658A (en) * | 2016-08-17 | 2016-11-23 | 南方科技大学 | Optical fiber laser |
| CN106711747A (en) * | 2017-01-19 | 2017-05-24 | 中国人民解放军国防科学技术大学 | In-band pumping technology-based composite cavity structure fiber oscillator |
| CN106911059A (en) * | 2017-02-24 | 2017-06-30 | 中国人民解放军国防科学技术大学 | All optical fibre structure 980nm wave band high-power fiber oscillators |
| CN106981815A (en) * | 2017-05-08 | 2017-07-25 | 中国兵器装备研究院 | A kind of high power all -fiber cascade amplifier |
| CN107591668A (en) * | 2017-08-09 | 2018-01-16 | 武汉锐科光纤激光技术股份有限公司 | A kind of application of Yb dosed optical fiber, laser system and Yb dosed optical fiber |
| CN111200231A (en) * | 2020-01-13 | 2020-05-26 | 中国人民解放军国防科技大学 | High-power all-fiber random laser device |
| CN112636157A (en) * | 2020-12-14 | 2021-04-09 | 南京理工大学 | Linear cavity all-fiber laser oscillator with 97Xnm wave band pump |
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| KR101016174B1 (en) * | 2010-12-28 | 2011-02-24 | 삼성탈레스 주식회사 | Apparatus for generating mid-wavelength infrared fiber laser with separated wavelength conversion head |
| CN102263358A (en) * | 2011-06-15 | 2011-11-30 | 北京工业大学 | High-power broadband superfluorescence light source in all-fiber structure |
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2013
- 2013-04-22 CN CN201310138103XA patent/CN103199420A/en active Pending
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| KR101016174B1 (en) * | 2010-12-28 | 2011-02-24 | 삼성탈레스 주식회사 | Apparatus for generating mid-wavelength infrared fiber laser with separated wavelength conversion head |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104466630A (en) * | 2013-09-12 | 2015-03-25 | 中国兵器装备研究院 | High-power fiber laser |
| CN103944043A (en) * | 2014-03-20 | 2014-07-23 | 天津欧泰激光科技有限公司 | In-band pumping 975-nanometer single-frequency fiber laser with ytterbium-doped silica optical fiber |
| CN104362496A (en) * | 2014-11-17 | 2015-02-18 | 山东海富光子科技股份有限公司 | High-power narrow-linewidth linear polarization fiber laser |
| CN104852261A (en) * | 2015-06-05 | 2015-08-19 | 中国人民解放军国防科学技术大学 | High-power all-fiber MOPA structure superfluorescence fiber light source based on tandem pumping |
| CN106159658A (en) * | 2016-08-17 | 2016-11-23 | 南方科技大学 | Optical fiber laser |
| CN106159656A (en) * | 2016-08-19 | 2016-11-23 | 光惠（上海）激光科技有限公司 | A kind of optical fiber laser of high-photoelectric transformation efficiency |
| CN106711747A (en) * | 2017-01-19 | 2017-05-24 | 中国人民解放军国防科学技术大学 | In-band pumping technology-based composite cavity structure fiber oscillator |
| CN106911059A (en) * | 2017-02-24 | 2017-06-30 | 中国人民解放军国防科学技术大学 | All optical fibre structure 980nm wave band high-power fiber oscillators |
| CN106981815A (en) * | 2017-05-08 | 2017-07-25 | 中国兵器装备研究院 | A kind of high power all -fiber cascade amplifier |
| CN106981815B (en) * | 2017-05-08 | 2019-07-26 | 中国兵器装备研究院 | A kind of high power all -fiber cascade amplifier |
| CN107591668A (en) * | 2017-08-09 | 2018-01-16 | 武汉锐科光纤激光技术股份有限公司 | A kind of application of Yb dosed optical fiber, laser system and Yb dosed optical fiber |
| CN107591668B (en) * | 2017-08-09 | 2019-05-17 | 武汉锐科光纤激光技术股份有限公司 | A kind of application of Yb dosed optical fiber, laser system and Yb dosed optical fiber |
| CN111200231A (en) * | 2020-01-13 | 2020-05-26 | 中国人民解放军国防科技大学 | High-power all-fiber random laser device |
| CN112636157A (en) * | 2020-12-14 | 2021-04-09 | 南京理工大学 | Linear cavity all-fiber laser oscillator with 97Xnm wave band pump |
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Application publication date: 20130710 |