CN102130412B - Full optical fiber type pulse optical fiber laser based on stimulated brillouin scattering pulse compression - Google Patents
Full optical fiber type pulse optical fiber laser based on stimulated brillouin scattering pulse compression Download PDFInfo
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- CN102130412B CN102130412B CN2011100397277A CN201110039727A CN102130412B CN 102130412 B CN102130412 B CN 102130412B CN 2011100397277 A CN2011100397277 A CN 2011100397277A CN 201110039727 A CN201110039727 A CN 201110039727A CN 102130412 B CN102130412 B CN 102130412B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 52
- 230000006835 compression Effects 0.000 title claims abstract description 20
- 238000007906 compression Methods 0.000 title claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 21
- 239000004065 semiconductor Substances 0.000 claims abstract description 20
- 238000005086 pumping Methods 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 10
- 230000005284 excitation Effects 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 80
- 238000002310 reflectometry Methods 0.000 claims description 19
- 238000005253 cladding Methods 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000006096 absorbing agent Substances 0.000 abstract description 5
- 229920006395 saturated elastomer Polymers 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a full optical fiber type pulse optical fiber laser based on stimulated brillouin scattering pulse compression. The full optical fiber type pulse optical fiber laser comprises a semiconductor laser pumping source, a multimode optical fiber combiner, an optical fiber grating pair, a Yb-doped double-clad optical fiber and a multi-component-doped silica optical fiber; the semiconductor laser pumping source is used for providing excitation energy of the pulse optical fiber laser; the optical fiber grating pair is used for forming laser oscillation; the Yb-doped double-clad optical fiber is used for providing laser gains; and the multi-component-doped silica optical fiber is used for generating a saturated absorption effect and further generating short pulse laser output. Continuous or quasi-continuous light generated by a semiconductor laser is used for pumping directly, and the Yb-doped double-clad optical fiber and the multi-component-doped silica optical fiber are combined, so that a block-shaped saturated absorber outside an active modulator or a cavity is not required. The hundred-picosecond-scale full optical fiber type pulse optical fiber laser with a simple structural form, higher average power, narrow pulse width, high peak power and stable repetition rate can be obtained.
Description
Technical field
The present invention relates to the fiber laser field, relate in particular to a kind of full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression.
Background technology
Fiber laser is a kind of particular laser of utilizing doped fiber as gain medium, has characteristics such as efficient height, good beam quality, heat radiation convenience.The fiber laser of full fiberize because the propagation of light beam all is in interconnective optical fiber, to carry out, does not receive interference effects such as external shock, therefore is very suitable for using in the abominable real work field of various environmental conditions.
The peak power level of fiber laser has very important influence to its action effect when itself and interacting goals.The fiber laser of the middle equal average power of watt level or tens of watts of levels generally all adopts high repetition pulsed mode, makes it can obtain a higher peak power level, and obtains to do with material the better action effect of time spent thus.
The main means that realize the high repetition pulsed operation of fiber laser comprise accent Q and locked mode.Q-regulating technique can obtain the laser pulse output of pulsewidth in tens of nanoseconds to hundreds of nanoseconds; Can adopt the Laser Modulation device in the chamber to realize initiatively transferring Q or adopt the self-saturation absorber to realize passive Q-adjusted.Mode-locking technique can obtain the ultra-short pulse laser output of pulsewidth at nanosecond to femtosecond; Can adopt active mode locking or passive mode locking technology to realize locked mode.But generally speaking, in the fiber laser, the general pulsewidth of laser pulse that adopts Q-regulating technique to obtain is longer, though mode-locking technique can obtain narrower pulse, technology is comparatively complicated, and stability is not ideal enough, is prone to produce the losing lock phenomenon.
Be different from general Q-regulating technique and mode-locking technique, utilize stimulated Brillouin scattering (stimulated Brillouin scattering) effect in the fiber laser, can realize the ultra-short pulse laser output of hundred picosecond.But the optical fiber that generally needs is very long, perhaps need the self-saturation absorber outside the chamber, so practical application receives certain limitation.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression is provided.
Link to each other in order based on the semiconductor laser pumping source in the full fiberize pulse optical fiber of stimulated Brillouin scattering pulse compression, multimode fiber bundling device, antiradar reflectivity fiber grating, Yb doping double-cladding optical fiber, multicomponent doping silica fiber, high reflectance fiber grating; Continuously or the semiconductor laser pumping source that drives of modulation type through multimode fiber bundling device, the pumping of antiradar reflectivity fiber grating Yb doping double-cladding optical fiber, and through multicomponent doping silica fiber and high reflectance fiber grating formation laser reflection cavity as gain medium; Yb optical fiber and the excitation of multicomponent doping silica fiber cause the stimulated Brillouin scattering effect in the optical fiber, cause the laser pulse compression, and the hundred picosecond ultra-short pulse lasers that produced are via antiradar reflectivity fiber grating and the output of multimode fiber bundling device.
Described multicomponent doping silica fiber component comprises Si, Cr and Bi.Described semiconductor laser pumping source is that a kind of operation wavelength is the fine multiple die semiconductor laser of magnetic tape trailer of 1～100W in 900～985 nm, power output.Described high reflectance fiber grating is a kind of fiber grating that has 80%～100% reflectivity at 1020～1085nm wave band.Described antiradar reflectivity fiber grating is a kind of fiber grating that has 10%～80% reflectivity at 1020～1085nm wave band.
The present invention is the novel full fiber pulse laser that a kind of simple in structure, pulse stabilization, pulse width, average power are higher, have very high peak power.Adopt the self-saturation absorber of the multicomponent silica fiber of Bi/Cr doping as full fiberize; It is of the present invention one big innovative point; Adopt Yb gain fibre and multicomponent silica fiber to constitute the ultrashort pulse laser of a full fiberize, have good long-time stability.System described in the invention constitutes, can the output spectrum scope between 1020～1100nm, pulsewidth is less than 1ns, greater than the high repetition pulse output of 100ps.
Description of drawings
Fig. 1 is based on the full fiberize pulse optical fiber structural representation of stimulated Brillouin scattering pulse compression;
Among the figure, semiconductor laser 1, multimode fiber bundling device 2, high reflectance fiber grating 3, Yb doped fiber 4, Yb optical fiber and Bi/Cr fused fiber splice point 5, Bi/Cr doped fiber 6, high reflectance fiber grating 7, pulse laser output 8.
Embodiment
Specify embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, link to each other in order based on the semiconductor laser pumping source 1 in the full fiberize pulse optical fiber of stimulated Brillouin scattering pulse compression, multimode fiber bundling device 2, antiradar reflectivity fiber grating 3, Yb doping double-cladding optical fiber 4, multicomponent doping silica fiber 6, high reflectance fiber grating 7; Its connection each other is welding.Weld 5 is the tie point of Yb doped fiber and Bi/Cr doped fiber, and loss is less than 0.1dB.Continuously or the semiconductor laser pumping source 1 that drives of modulation type through multimode fiber bundling device 2,3 pumpings of antiradar reflectivity fiber grating Yb doping double-cladding optical fiber 4 as gain medium, and constitute laser reflection cavities through multicomponent doping silica fiber 6 and high reflectance fiber grating 7; Yb optical fiber and the excitation of multicomponent doping silica fiber cause the stimulated Brillouin scattering effect in the optical fiber, cause the laser pulse compression, and the hundred picosecond ultra-short pulse lasers that produced are via antiradar reflectivity fiber grating 3 and 2 outputs of multimode fiber bundling device.
Described multicomponent doping silica fiber 6 components comprise Si, Cr and Bi.Described semiconductor laser pumping source 1 is that a kind of operation wavelength is the fine multiple die semiconductor laser of magnetic tape trailer of 1～100W in 900～985 nm, power output.Described high reflectance fiber grating 7 is a kind of fiber gratings that have 80%～100% reflectivity at 1020～1085nm wave band.Described antiradar reflectivity fiber grating 3 is a kind ofly to have the fiber grating of 10%～80% reflectivity at 1020～1085nm wave band, and the long coupling of two grating reflection spikes.
Operation principle of the present invention:
Based on the full fiberize pulse optical fiber of stimulated Brillouin scattering pulse compression is that a kind of self-saturation absorption characteristic that relies on realizes passive Q-adjusted and triggers the novel optical fiber laser of stimulated Brillouin scattering thereupon.
It is made up of, Yb doping double-cladding optical fiber, multicomponent doping silica fiber etc. semiconductor laser pumping source, multimode fiber bundling device, fiber grating; Through semiconductor laser pumping the source continuous or quasi-continuous operation that modulation type drives, the excitation energy of pulse optical fiber is provided; Fiber grating is to being used to form laser generation; The Yb doping double-cladding optical fiber is in order to provide laser gain; Multicomponent doping silica fiber is used to produce the saturated absorption effect and produces short-pulse laser output thus.When the pump power of semiconductor laser surpasses the threshold condition of the laser that Yb optical fiber and Bi/Cr optical fiber constitutes, can cause the self-saturation absorber to be opened, the generation Q impulse; In a single day the intensity of Q impulse surpass the threshold value of stimulated Brillouin scattering, will trigger the stimulated Brillouin scattering effect, causes the compression of pulse.Pulse after the compression is amplified through the Yb gain fibre; Via antiradar reflectivity fiber grating and the output of multimode fiber bundling device, can directly be used for processing, measure, also can be used as the seed source of next stage fiber amplifier; After amplifying, the more pulsed laser source of high-average power and peak power is provided.
Full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression of the present invention; Continuous or the quasi-continuous lasing that directly produces through semiconductor laser comes pumping; Yb doping double-cladding silica fiber and multicomponent doping silica fiber make up, and do not need the block saturated absorbing body outside active modulator or the chamber.
Claims (5)
1. full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression is characterized in that: semiconductor laser pumping source (1), multimode fiber bundling device (2), antiradar reflectivity fiber grating (3), Yb doping double-cladding optical fiber (4), multicomponent doping silica fiber (6), high reflectance fiber grating (7) link to each other in order; Continuously or the semiconductor laser pumping source (1) that drives of modulation type through multimode fiber bundling device (2), antiradar reflectivity fiber grating (3) pumping Yb doping double-cladding optical fiber (4), and through multicomponent doping silica fiber (6) and high reflectance fiber grating (7) formation laser reflection cavity as gain medium; Yb doping double-cladding optical fiber (4) and multicomponent doping silica fiber (6) excitation cause the stimulated Brillouin scattering effect in the optical fiber; Cause the laser pulse compression, the hundred picosecond ultra-short pulse lasers that produced are via antiradar reflectivity fiber grating (3) and multimode fiber bundling device (2) output.
2. a kind of full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression according to claim 1 is characterized in that described multicomponent doping silica fiber (6) component comprises Si, Cr and Bi.
3. a kind of full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression according to claim 1 is characterized in that described semiconductor laser pumping source (1) is that a kind of operation wavelength is the fine multiple die semiconductor laser of magnetic tape trailer of 1～100W in 900～985 nm, power output.
4. a kind of full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression according to claim 1 is characterized in that described high reflectance fiber grating (7) is a kind of fiber grating that has 80%～100% reflectivity at 1020～1085nm wave band.
5. a kind of full fiberize pulse optical fiber based on the stimulated Brillouin scattering pulse compression according to claim 1 is characterized in that described antiradar reflectivity fiber grating (3) is a kind of fiber grating that has 10%～80% reflectivity at 1020～1085nm wave band.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100397277A CN102130412B (en) | 2011-02-17 | 2011-02-17 | Full optical fiber type pulse optical fiber laser based on stimulated brillouin scattering pulse compression |
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| CN2011100397277A CN102130412B (en) | 2011-02-17 | 2011-02-17 | Full optical fiber type pulse optical fiber laser based on stimulated brillouin scattering pulse compression |
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| CN102130412B true CN102130412B (en) | 2012-03-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102684049A (en) * | 2012-05-10 | 2012-09-19 | 清华大学 | Optical fiber laser device |
| GB2511043B (en) | 2013-02-20 | 2016-03-23 | Fianium Ltd | A supercontinuum source |
| CN103500912B (en) * | 2013-09-27 | 2015-08-12 | 江苏天元激光科技有限公司 | Based on the all-fiber Q adjusting optical fiber laser of stimulated Brillouin scattering |
| CN104134927A (en) * | 2014-07-25 | 2014-11-05 | 上海交通大学 | Nonlinear effect Q-switched fiber laser |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159229A (en) * | 1995-07-28 | 1997-09-10 | 俄罗斯科学院普通物理研究所纤维光学科技中心 | Raman fibre-optical laser, bragg fibre-optical grating and method of altering refractive index in germano-silicate glass |
| CN1528035A (en) * | 2001-03-14 | 2004-09-08 | ŷ���ϰ��������о���֯ | Narrow bard high power fibre lasers with wider wavelength covering range |
| CN101083381A (en) * | 2006-05-30 | 2007-12-05 | 中国科学院西安光学精密机械研究所 | Semiconductor laser seed pulse main oscillation amplification all-fiber laser |
| CN101510662A (en) * | 2009-03-18 | 2009-08-19 | 山东大学 | Enhancement type fiber-optical laser for resonant cavity pump |
| CN101640367A (en) * | 2008-11-17 | 2010-02-03 | 武汉锐科光纤激光器技术有限责任公司 | Pulse full-fiber laser |
| CN102130413A (en) * | 2011-02-17 | 2011-07-20 | 浙江大学 | Full optical fiber type supercontinuum laser source based on multi-component-doped silica optical fiber |
-
2011
- 2011-02-17 CN CN2011100397277A patent/CN102130412B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159229A (en) * | 1995-07-28 | 1997-09-10 | 俄罗斯科学院普通物理研究所纤维光学科技中心 | Raman fibre-optical laser, bragg fibre-optical grating and method of altering refractive index in germano-silicate glass |
| CN1528035A (en) * | 2001-03-14 | 2004-09-08 | ŷ���ϰ��������о���֯ | Narrow bard high power fibre lasers with wider wavelength covering range |
| CN101083381A (en) * | 2006-05-30 | 2007-12-05 | 中国科学院西安光学精密机械研究所 | Semiconductor laser seed pulse main oscillation amplification all-fiber laser |
| CN101640367A (en) * | 2008-11-17 | 2010-02-03 | 武汉锐科光纤激光器技术有限责任公司 | Pulse full-fiber laser |
| CN101510662A (en) * | 2009-03-18 | 2009-08-19 | 山东大学 | Enhancement type fiber-optical laser for resonant cavity pump |
| CN102130413A (en) * | 2011-02-17 | 2011-07-20 | 浙江大学 | Full optical fiber type supercontinuum laser source based on multi-component-doped silica optical fiber |
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