CN101640367B - Pulse full-fiber laser - Google Patents
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- CN101640367B CN101640367B CN2009101649761A CN200910164976A CN101640367B CN 101640367 B CN101640367 B CN 101640367B CN 2009101649761 A CN2009101649761 A CN 2009101649761A CN 200910164976 A CN200910164976 A CN 200910164976A CN 101640367 B CN101640367 B CN 101640367B
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Abstract
The invention relates to a pulse full-fiber laser consisting of a master oscillator and a power amplifier, wherein the master oscillator consists of a semiconductor pump source with pigtailed fiber, a (1+1)*1 side coupler, signal light reflection fiber bragger grating double-wrapping-layer Yb-doped fiber, a fiber coupling acoustic optical modulator and an output coupled fiber bragger grating; pump input fiber in the (1+1)*1 side coupler is connected with the semiconductor pump source with pigtailed fiber; output fiber is connected with a signal light reflection fiber bragger grating or the output coupled fiber bragger grating; double-wrapping-layer Yb-doped fiber and the fiber coupling acoustic optical modulator are sequentially welded between the signal light reflection fiber bragger grating and the output coupled fiber bragger grating; and the output coupled fiber bragger grating or signal input fiber in the (1+1)*1 side coupler is connected with a signal input end of a power amplifier. The whole system of the pulse full-fiber laser only is simply air cooled, has the advantages of compactness, adjustable repetition frequency, narrow output pulse width, high peak power, and the like, and is stable and reliable and is easy to realize the product forming.
Description
Technical field
The present invention relates to a kind of pulse full-fiber laser.
Background technology
Pulse optical fiber has compact conformation, good beam quality, pulse width, peak power height, need not numerous advantages such as water-cooled, can be widely used in fields such as mark, shaping, micromachined and laser medicine, be one of the direction in comparison forward position, current optoelectronic information field.At present, the mode of acquisition high light beam quality, high power, short-pulse laser mainly contains three kinds: mode-locking technique, Q-regulating technique and main oscillations-amplification (MOPA) technology.
Mode locked fiber laser is (referring to technology [Opt.Comm. formerly, 2000,186:311]) structure very complicated, output pulse width is very narrow, be time-multiplexed key technology in the optical communication system, but because the inner cladding size of doubly clad optical fiber is big more a lot of than ordinary optic fibre, have certain problem with the coupling of ordinary optic fibre, and the restriction of fiber nonlinear effect, therefore utilize mode-locking technique to be difficult in and realize high-octane pulse laser output in the doubly clad optical fiber.Q-switched double cladded fiber laser is (referring to technology [Electron.Lett. formerly, 2004,40 (15): 928-929]) the main employing adding acousto-optic or the realization of electric-optically Q-switched crystal in the double-clad optical fiber laser continuously, pulse energy and average power are less, and pulse energy is subjected to the restriction of fiber end face threshold value.Main oscillations-amplifying fiber laser is (referring to technology [Opt.Lett. formerly, 2005,30 (4): 358-360] be that the seed light that is produced by main oscillations is amplified), just can obtain that average output power is big, peak power is high, tuning range is wide, the laser beam of good beam quality, but it adopts the less 1064nm single mode LD of power output as seed source, has just obtained high-power pulse laser output so adopt level Four to amplify.
Summary of the invention
The present invention provides a kind of pulse full-fiber laser in order to overcome problem and the shortcoming that above-mentioned prior art exists, and the present invention is an all optical fibre structure, and whole system is simply compact, only needs simply air-cooled.Have characteristics such as adjustable repetitive frequency, narrow output pulse width, peak power height, reliable and stable, be easy to realize commercialization.
Technical solution of the present invention is: the present invention adopts main oscillations---and amplify (MOPA) structure, the main oscillations level is a sound and light Q adjusting optical fiber laser, and complete machine all adopts optical fiber and optical fibre device welding mutually, all optical fibre structure.Under the modulation of acousto-optic modulator, the pulse seed light of main oscillations level output adjustable repetitive frequency, the about 2W of average power, the injecting power amplifier carries out one-level and amplifies, and the output average power reaches 25W.
Pulse full-fiber laser, as shown in Figure 1, constitute by master oscillator 1 and power amplifier 2 two parts, wherein master oscillator 1 is by the fine semiconductor pumping sources 11 of magnetic tape trailer, (1+1) * 1 side coupler 12, flashlight reflection fiber grating 13, double clad Yb dosed optical fiber 14, optical fiber coupling acousto-optic modulator 15, output coupled fiber grating 16 is formed, just like Fig. 2, two kinds of structures shown in Figure 3, (1+1) * 1 the pumping input optical fibre links to each other with the fine semiconductor pumping sources of magnetic tape trailer in the side coupler, output optical fibre links to each other with flashlight reflection fiber grating or output coupled fiber grating, Yb dosed optical fiber of welding double clad successively 14 and optical fiber coupling acousto-optic modulator 15 between flashlight reflection fiber grating 13 and the output coupled fiber grating 16, output coupled fiber grating 16 or (1+1) * 1 in the side coupler 12 the signal input optical fibre link to each other with the signal input part of power amplifier 2.In master oscillator 1, in laserresonator under the modulation of acousto-optic modulator 15, seed pulse laser about output average power 2W, its frequency can realize modulation by acousto-optic modulator 15, the seed pulse laser of master oscillator 1 output injecting power amplifier 2 subsequently amplifies, can obtain the pulse laser of average power 25W, subsequently by 28 outputs of output Transmission Fibers.
Described power amplifier 2 is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (6+1) * 1 side coupler 26, double clad Yb dosed optical fiber 27, output Transmission Fibers 28 constitute, five fine semiconductor pumping sources (21 of magnetic tape trailer, 22,23,24,25), double clad Yb dosed optical fiber 27 links to each other with (6+1) * 1 side coupler 26, double clad Yb dosed optical fiber 27 other ends link to each other with output Transmission Fibers 28, the signal input part of power amplifier 2 is the signal input optical fibre of (6+1) * 1 side coupler 26.As shown in Figure 4.
Described power amplifier 2 is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (3+1) * 1 side coupler 29, (2+1) * 1 side coupler 30, double clad Yb dosed optical fiber 27, output Transmission Fibers 28 constitutes, three fine semiconductor pumping sources (21 of magnetic tape trailer, 22,23) link to each other with (3+1) * 1 side coupler 29 respectively, (3+1) * 1 side coupler 29 links to each other with (2+1) * 1 side coupler 30 by double clad Yb dosed optical fiber 27, the fine semiconductor pumping sources (24 of other two magnetic tape trailers, 25) link to each other with (2+1) * 1 side coupler 30 with output Transmission Fibers 28, the signal input part of power amplifier 2 is the signal input optical fibre of (3+1) * 1 side coupler 29, as shown in Figure 5.
Described power amplifier 2 is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (6+1) * 1 side coupler 26, double clad Yb dosed optical fiber 27, output Transmission Fibers 28 constitute, five fine semiconductor pumping sources (21,22,23 of magnetic tape trailer, 24,25), double clad Yb dosed optical fiber 27, output Transmission Fibers 28 link to each other with (6+1) * 1 side coupler 26 respectively, the signal input part of power amplifier 2 is a double clad Yb dosed optical fiber 27, as shown in Figure 6.
The described fine semiconductor pumping sources of six magnetic tape trailers (11,21,22,23,24,25) are semiconductor laser, and output wavelength is 915nm, and power output is 10W, and tail optical fiber is a multimode fiber.The pumping source of ytterbium-doping optical fiber laser generally adopts 915nm or 975nm long wavelength semiconductor laser, because Yb dosed optical fiber has wideer absorption line near 915nm, so the present invention selects for use the semiconductor laser of 915nm magnetic tape trailer fibre as pumping source.
Described (1+1) * 1 side coupler 12 has bigger reverse isolation degree and very little insertion loss, guarantees that the fine semiconductor pumping sources 11 of magnetic tape trailer can not cause damage because feedback is excessive; Have less coupling loss simultaneously, be generally less than 0.2dB, guarantee that pumping luminous energy effectively injects Yb dosed optical fiber by it.Its structure is referring to the first patent No.: ZL 03128067.6, its input optical fibre wherein one be multimode fiber, with the welding mutually of the fine semiconductor pumping sources 11 of magnetic tape trailer.
13 pairs of 915nm pump lights of described flashlight reflection fiber grating are high saturating, and transmissivity is greater than 99%; High anti-to flashlight 1064nm, general reflection efficiency is more than 98%.
The double clad Yb dosed optical fiber 14 of described master oscillator 1 is a single-mode double-clad optical fiber, and its core material is a working-laser material, for mixing the ytterbium quartz glass; The cross section of inner cladding is rectangle, D shape, hexagon or non-circular other shape.Be monomode fiber, guaranteed the beam quality that the seed light of main oscillations 1 output has a nearly diffraction limit.
Described optical fiber coupling acousto-optic modulator 15 two ends are the optical fiber coupling, can directly follow other optical fibre device welding, and modulating frequency 20kHz-80kHz is adjustable.It inserts loss and generally is lower than 2dB, guarantees that main oscillations 1 output seed light has bigger average power, reaches about 2W.Its structure is referring to first patent (patent No.: ZL 200820067133.0).By its special structure, suppress the self-oscillation in the doped fiber, thereby realize powerful pulse laser output, and realize the laser output of narrow spectrum by the method for plated film on different elements.
16 pairs of 915nm pump lights of described output coupled fiber grating are high saturating, and transmissivity is greater than 99%; To flashlight 1064nm partial reflection, reflectivity is generally 5%-20%.Itself and flashlight reflection fiber grating 13 constitute the resonant cavity of laser, the strict coupling of the reflection wavelength of reflection wavelength and flashlight reflection fiber grating 13.
Described (6+1) * 1 side coupler 26 has bigger reverse isolation degree, guarantees that the fine semiconductor pumping sources of magnetic tape trailer (21,22,23,24,25) can not cause damage because feedback is excessive; Have less insertion loss and coupling loss simultaneously, general all less than 0.2dB, guarantee that pumping luminous energy effectively injects Yb dosed optical fiber by it.Its structure is referring to the first patent No.: ZL 03128067.6.Five is multimode fiber in the input optical fibre, is welded together with the fine semiconductor pumping sources of magnetic tape trailer (21,22,23,24,25) respectively; One is doubly clad optical fiber, is welded together with the output of master oscillator 1.
Described double clad Yb dosed optical fiber 27 is the long-pending doubly clad optical fiber of big die face, and its core material is a working-laser material, for mixing the ytterbium quartz glass; The cross section of inner cladding is rectangle, D shape, hexagon or non-circular other shape.Compare with double clad Yb dosed optical fiber 14, it has bigger core size.According to the different parameters optical fiber that is adopted, select for use appropriate diameter to coil, guarantee to have beam quality preferably from the laser of amplifier output.
Described output Transmission Fibers 28 is passive optical fiber, and its core diameter and numerical aperture and front end welding optic fibre are complementary, and guarantees less splice loss, splice attenuation between the two.The molten end cap that quartz material is arranged of output is 8 degree inclination angle polishings, and with the self-oscillation in the inhibition light path, and the protection output bears bigger peak power.
Described (3+1) * 1 side coupler 29 has bigger reverse isolation degree and very little insertion loss, and its structure is referring to the first patent No.: ZL 03128067.6.Have 3 in the input optical fibre for multimode fiber, be welded together with the fine semiconductor pumping sources of three magnetic tape trailers (21,22,23) respectively, one is doubly clad optical fiber, is welded together with the output of master oscillator 1.
Described (2+1) * 1 side coupler 30 has bigger reverse isolation degree and very little insertion loss, and its structure is referring to the first patent No.: ZL 03128067.6.Have 2 to be multimode fiber in the input optical fibre, be welded together with the fine semiconductor pumping sources of two magnetic tape trailers (24,25) respectively, one is doubly clad optical fiber, is welded together with output Transmission Fibers 28.
Compare with first technology, pulse optical fiber of the present invention is an all optical fibre structure, and whole system is simple and compact for structure, only needs simply air-cooled.Have characteristics such as adjustable repetitive frequency, narrow output pulse width, peak power height, good beam quality, reliable and stable, be easy to realize commercialization.
Description of drawings
Fig. 1 is the structural representation of pulse full-fiber laser of the present invention;
Fig. 2 and Fig. 3 are two kinds of structural representations of master oscillator;
Fig. 4, Fig. 5 and Fig. 6 are respectively three kinds of structural representations of amplifier;
Fig. 7 is wherein a kind of overall structure schematic diagram of pulse full-fiber laser.
Embodiment
The invention will be further described in conjunction with the accompanying drawings.
As shown in Figure 1, constitute by master oscillator 1 and power amplifier 2 two parts, wherein master oscillator 1 is by the fine semiconductor pumping sources 11 of magnetic tape trailer, (1+1) * 1 side coupler 12, flashlight reflection fiber grating 13, double clad Yb dosed optical fiber 14, optical fiber coupling acousto-optic modulator 15, output coupled fiber grating 16 is formed, the structure of master oscillator 1 as shown in Figure 2, (1+1) * 1 the pumping input optical fibre links to each other with the fine semiconductor pumping sources of magnetic tape trailer in the side coupler, the output of output optical fibre and flashlight reflection fiber grating flashlight reflection fiber grating 13 links to each other with optical fiber coupling acousto-optic modulator 15 through double clad Yb dosed optical fiber 14, and the output of optical fiber coupling acousto-optic modulator 15 links to each other with the signal input part of power amplifier 2 through output coupled fiber grating 16; Figure 3 shows that second kind of structure of master oscillator 1, (1+1) * 1 the pumping input optical fibre links to each other with the fine semiconductor pumping sources 11 of magnetic tape trailer in the side coupler 12, output optical fibre links to each other with output coupled fiber grating 16, the output of output coupled fiber grating 16 links to each other with optical fiber coupling acousto-optic modulator 15, double clad Yb dosed optical fiber 14 flashlight reflection fiber gratings 13 successively, and (1+1) * 1 the signal input optical fibre of side coupler 12 links to each other with the signal input part of power amplifier 2 as the output of master oscillator 1.In master oscillator 1, in laserresonator under the modulation of acousto-optic modulator 15, seed pulse laser about output average power 2W, its frequency can realize modulation by acousto-optic modulator 15, the seed pulse laser of master oscillator 1 output injecting power amplifier 2 subsequently amplifies, can obtain the pulse laser of average power 25W, subsequently by 28 outputs of output Transmission Fibers.
Described power amplifier 2 is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (6+1) * 1 side coupler 26, double clad Yb dosed optical fiber 27, output Transmission Fibers 28 constitute, five fine semiconductor pumping sources (21 of magnetic tape trailer, 22,23,24,25), double clad Yb dosed optical fiber 27 links to each other with (6+1) * 1 side coupler 26 respectively, double clad Yb dosed optical fiber 27 other ends link to each other with output Transmission Fibers 28, the signal input part of power amplifier 2 is the signal input optical fibre of (6+1) * 1 side coupler 26.As shown in Figure 4.
Described power amplifier 2 is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (3+1) * 1 side coupler 29, (2+1) * 1 side coupler 30, double clad Yb dosed optical fiber 27, output Transmission Fibers 28 constitutes, three fine semiconductor pumping sources (21 of magnetic tape trailer, 22,23) link to each other with (3+1) * 1 side coupler 29 respectively, (3+1) * 1 side coupler 29 links to each other with (2+1) * 1 side coupler 30 by double clad Yb dosed optical fiber 27, the fine semiconductor pumping sources (24 of other two magnetic tape trailers, 25) link to each other with (2+1) * 1 side coupler 30 with output Transmission Fibers 28, the signal input part of power amplifier 2 is the signal input optical fibre of (3+1) * 1 side coupler 29, as shown in Figure 5.
Described power amplifier 2 is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (6+1) * 1 side coupler 26, double clad Yb dosed optical fiber 27, output Transmission Fibers 28 constitute, five fine semiconductor pumping sources (21,22,23 of magnetic tape trailer, 24,25), double clad Yb dosed optical fiber 27, output Transmission Fibers 28 link to each other with (6+1) * 1 side coupler 26 respectively, the signal input part of power amplifier 2 is a double clad Yb dosed optical fiber 27, as shown in Figure 6.
With structure shown in Figure 7 is example.The tail optical fiber of the fine semiconductor pumping sources 11 of magnetic tape trailer and (1+1) * 1 root multimode fiber of side coupler 12 inputs are welded together; The output optical fibre of side coupler 12 and flashlight reflection fiber grating 13 welding mutually; Be welded together with double clad Yb dosed optical fiber 14 then; The tail optical fiber welding mutually of the other end of double clad Yb dosed optical fiber 14 and optical fiber coupling acousto-optic modulator 15; Be welded together with heel output coupled fiber grating 16.Then, the doubly clad optical fiber welding mutually of output coupled fiber grating 16 and (5+1) * 1 side coupler 26 inputs, other five input optical fibres of side coupler 26 then are welded together with the fine semiconductor pumping sources 21,22,23,24,25 of magnetic tape trailer respectively, and its output optical fibre is then with the 27 phase weldings of double clad Yb dosed optical fiber; Transmission Fibers 28 is exported in welding more at last.This has just finished the pulse full-fiber laser of MOPA structure.
We adopt this structure, and main oscillations level power output is 2.1W, and frequency 20kHz-80kHz is adjustable, the about 51ns of pulse during 20kHz.After amplifier amplifies, average output power 25W, frequency 20kHz-80kHz is adjustable, the about 65ns of pulse during 20kHz.
Claims (6)
1. pulse full-fiber laser, it is characterized in that: constitute by master oscillator (1) and power amplifier (2) two parts, wherein master oscillator (1) is by the fine semiconductor pumping sources (11) of magnetic tape trailer, (1+1) * 1 side coupler (12), flashlight reflection fiber grating (13), double clad Yb dosed optical fiber (14), optical fiber coupling acousto-optic modulator (15), output coupled fiber grating (16) is formed, (1+1) * 1 the pumping input optical fibre links to each other with the fine semiconductor pumping sources of magnetic tape trailer (11) in the side coupler (12), output optical fibre links to each other with flashlight reflection fiber grating (13) or output coupled fiber grating (16), Yb dosed optical fiber of welding double clad successively (14) and optical fiber coupling acousto-optic modulator (15) between flashlight reflection fiber grating (13) and the output coupled fiber grating (16), output coupled fiber grating (16) or (1+1) * 1 in the side coupler (12) the signal input optical fibre link to each other with the signal input part of power amplifier (2), described (1+1) * 1 side coupler (12) has bigger reverse isolation degree and very little insertion loss, input optical fibre wherein one be the welding mutually of the fine semiconductor pumping sources (11) of multimode fiber and magnetic tape trailer; Described flashlight reflection fiber grating (13) to the transmitance of 915nm pump light more than 99%, to the reflectivity of flashlight more than 98%; Described double clad Yb dosed optical fiber (14) is a single-mode double-clad optical fiber; Described optical fiber coupling acousto-optic modulator (15) two ends are the optical fiber coupling; Described output coupled fiber grating (16) more than 99%, is 5%-20% to the flashlight reflectivity to the transmitance of 915nm pump light, and output coupled fiber grating (16) and flashlight reflection fiber grating (13) constitute the resonant cavity of laser; The molten end cap that quartz material is arranged of output Transmission Fibers (28) output of power amplifier is 8 degree inclination angle polishings and is coated with the flashlight anti-reflection film, to suppress self-oscillation.
2. pulse full-fiber laser according to claim 1, it is characterized in that: described power amplifier (2) is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (6+1) * 1 side coupler (26), double clad Yb dosed optical fiber (27), output Transmission Fibers (28) constitutes, five fine semiconductor pumping sources (21 of magnetic tape trailer, 22,23,24,25), double clad Yb dosed optical fiber (27) links to each other with (6+1) * 1 side coupler (26), double clad Yb dosed optical fiber (27) other end links to each other with output Transmission Fibers (28), and the signal input part of power amplifier (2) is the signal input optical fibre of (6+1) * 1 side coupler (26).
3. pulse full-fiber laser according to claim 1, it is characterized in that: described power amplifier (2) is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (3+1) * 1 side coupler (29), (2+1) * 1 side coupler (30), double clad Yb dosed optical fiber (27), output Transmission Fibers (28) constitutes, three fine semiconductor pumping sources (21 of magnetic tape trailer, 22,23) link to each other with (3+1) * 1 side coupler (29) respectively, (3+1) * 1 side coupler (29) links to each other with (2+1) * 1 side coupler (30) by double clad Yb dosed optical fiber (27), the fine semiconductor pumping sources (24 of other two magnetic tape trailers, 25) link to each other with (2+1) * 1 side coupler (30) with output Transmission Fibers (28), the signal input part of power amplifier (2) is the signal input optical fibre of (3+1) * 1 side coupler (29).
4. pulse full-fiber laser according to claim 1, it is characterized in that: described power amplifier (2) is by the fine semiconductor pumping sources (21 of five magnetic tape trailers, 22,23,24,25), (6+1) * 1 side coupler (26), double clad Yb dosed optical fiber (27), output Transmission Fibers (28) constitute, five fine semiconductor pumping sources (21 of magnetic tape trailer, 22,23,24,25), output Transmission Fibers (28) link to each other with (6+1) * 1 side coupler (26) respectively, the signal input part of power amplifier (2) is double clad Yb dosed optical fiber (27).
5. pulse full-fiber laser according to claim 1 is characterized in that: the fine semiconductor pumping sources of described magnetic tape trailer is a semiconductor laser, and output wavelength is 915nm, and power output is 10W, and tail optical fiber is a multimode fiber.
6. pulse full-fiber laser according to claim 1 is characterized in that: described power amplifier (2) double clad Yb dosed optical fiber (27) is the long-pending doubly clad optical fiber of big die face.
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| CN2009101649761A CN101640367B (en) | 2008-11-17 | 2009-07-29 | Pulse full-fiber laser |
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Families Citing this family (20)
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| CN101969172A (en) * | 2010-08-24 | 2011-02-09 | 浙江大学 | Yb-doped fiber laser based on pulse laser seeds in gain modulation technology |
| CN102130412B (en) * | 2011-02-17 | 2012-03-28 | 浙江大学 | Full optical fiber type pulse optical fiber laser based on stimulated brillouin scattering pulse compression |
| CN102263358A (en) * | 2011-06-15 | 2011-11-30 | 北京工业大学 | High-power broadband superfluorescence light source in all-fiber structure |
| CN102252834B (en) * | 2011-06-28 | 2012-07-18 | 武汉锐科光纤激光器技术有限责任公司 | Photon darkening test system for gain fiber |
| CN102891426A (en) * | 2011-12-30 | 2013-01-23 | 清华大学 | Ytterbium-doped fiber laser |
| CN102593701A (en) * | 2012-03-02 | 2012-07-18 | 陈抗抗 | Optical fiber laser with super continuous spectrum |
| CN102931572B (en) * | 2012-11-06 | 2015-06-24 | 江苏天元激光科技有限公司 | High-power fiber lasers of short wavelength interval pump |
| CN103050873A (en) * | 2012-12-29 | 2013-04-17 | 山东海富光子科技股份有限公司 | High-power pulse type ytterbium-doped all-fiber laser system |
| CN103050874A (en) * | 2013-01-16 | 2013-04-17 | 山东海富光子科技股份有限公司 | High-power pulse type singe-frequency all-fiber laser system |
| CN103579895B (en) * | 2013-10-09 | 2015-04-22 | 深圳市创鑫激光股份有限公司 | High-power Q-switched pulse optical fiber laser |
| CN103986046A (en) * | 2014-04-14 | 2014-08-13 | 中国电子科技集团公司第十一研究所 | Narrow-line-width fiber laser |
| CN104393473A (en) * | 2014-08-20 | 2015-03-04 | 广东高聚激光有限公司 | High-gain all-fiber laser amplifier and high-gain laser amplification method |
| CN104409949A (en) * | 2014-11-05 | 2015-03-11 | 丹阳聚辰光电科技有限公司 | Ultra-short pulse fiber laser |
| CN106159652A (en) * | 2015-04-27 | 2016-11-23 | 杭州法博激光科技有限公司 | The double mode thulium-doped all-fiber laser device of hectowatt grade |
| CN105337146B (en) * | 2015-11-06 | 2019-03-15 | 深圳大学 | A kind of high peak power pulse mixes thulium laser |
| CN105356205A (en) * | 2015-11-10 | 2016-02-24 | 武汉锐科光纤激光技术股份有限公司 | Long-pulse high-peak-power quasi-continuous fiber laser system |
| CN105470802B (en) * | 2015-12-30 | 2019-07-12 | 昂纳信息技术（深圳）有限公司 | Whole optical fiber acousto-optic Q laser and its output method |
| CN108574198A (en) * | 2018-06-22 | 2018-09-25 | 长春德信光电技术有限公司 | A kind of big energy long-pulse fiber laser |
| CN111129933A (en) * | 2018-10-31 | 2020-05-08 | 大族激光科技产业集团股份有限公司 | All-fiber air-cooled thulium laser |
| CN111541135A (en) * | 2020-05-07 | 2020-08-14 | 无锡锐科光纤激光技术有限责任公司 | Q-switched pulse fiber laser and preparation method thereof |
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Address after: 430074 East Lake science and technology zone, Wuhan province high tech Avenue, No. 999, the future of science and technology city of the city of Hubei Patentee after: WUHAN RAYCUS FIBER LASER TECHNOLOGIES CO., LTD. Address before: 430223, Hubei Wuhan science and Technology Park, Huazhong University of Science and Technology hi tech laser industry park Patentee before: Wuhan Raycus Fiber Laser Technologies Co., Ltd. |