CN102130413B - Full optical fiber type supercontinuum laser source based on multi-component-doped silica optical fiber - Google Patents
Full optical fiber type supercontinuum laser source based on multi-component-doped silica optical fiber Download PDFInfo
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- CN102130413B CN102130413B CN2011100397296A CN201110039729A CN102130413B CN 102130413 B CN102130413 B CN 102130413B CN 2011100397296 A CN2011100397296 A CN 2011100397296A CN 201110039729 A CN201110039729 A CN 201110039729A CN 102130413 B CN102130413 B CN 102130413B
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000013307 optical fiber Substances 0.000 title claims abstract description 37
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 33
- 239000004065 semiconductor Substances 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000005284 excitation Effects 0.000 claims abstract description 6
- 238000002310 reflectometry Methods 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 83
- 238000001228 spectrum Methods 0.000 claims description 22
- 238000005253 cladding Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000003595 spectral effect Effects 0.000 abstract description 5
- 239000004038 photonic crystal Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 238000001069 Raman spectroscopy Methods 0.000 description 3
- 238000001307 laser spectroscopy Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012014 optical coherence tomography Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 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
- 238000009510 drug design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a full optical fiber type supercontinuum laser source based on a multi-component-doped silica optical fiber. The full optical fiber type supercontinuum laser source comprises a semiconductor laser pumping source, a multimode optical fiber combiner, a first high reflectivity optical fiber grating, a Yb-doped double-clad optical fiber, the multi-component-doped silica optical fiber and a second high reflectivity optical fiber grating. The semiconductor laser pumping source is used for providing excitation energy; 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, further inducing stimulated brillouin scattering to generate ultra-short pulse laser output and getting supercontinuum laser output by excitation. Through combination of the semiconductor laser pumping source, the Yb-doped double-clad optical fiber and the multi-component-doped silica optical fiber, a photonic crystal optical fiber in a microstructure does not need to be adopted. The super continuum laser source with a simple structural form, higher output power, wide spectral range and good flatness can be obtained.
Description
Technical field
The present invention relates to the fiber laser field, relate in particular to a kind of full fiberize super continuous spectrums lasing light emitter based on multicomponent doping silica fiber.
Background technology
Time domain and the frequency domain of light pulse in highly nonlinear optical fiber develops; Not only receive influence such as spontaneous phase modulated (SPM), cross-phase modulation (XPM), four wave mixing (FWM), stimulated Raman scattering (SRS), stimulated Brillouin scattering multiple nonlinear effects such as (SBS); Also receive the influence of optical fiber dispersion characteristic, all these non-linear process can produce new frequency component.For enough strong pulse, can be with more than the laser spectroscopy broadening nm up to a hundred, this phenomenon is referred to as super continuous spectrums and produces.
Super continuum source has very wide spectrum, can be widely used in the various fields that need broad spectrum light source.At present, the application of super continuum source mainly contains: multichannel communication light source, spectroscopy, optical coherence tomography (OCT), light frequency metrology, optical characteristic test, communication device (WDM) test etc.Because super continuum source has the characteristic of wide spectrum, high brightness, has shown boundless application prospect.
At present, the main method that produces super continuous spectrums laser realizes the output of super continuous spectrums laser for utilizing the nonlinear optical fiber of high power ultrashort pulse (fs or ps) laser excitation micro-structural.But the general volume of ultrashort pulse laser is bigger, involves great expense; The nonlinear optical fiber overwhelming majority that it uses is photonic crystal fiber.Though photonic crystal fiber has its inherent advantages; For example non-linear absorption is bigger; GVD (GVD) wavelength location can be by designing control etc., and these advantages help to realize the control to super continuous spectrums spectral width, flatness through rational design optical fiber structure.But photonic crystal fiber also has its remarkable shortcoming, problems such as for example welding difficulty, the splice loss, splice attenuation with ordinary optic fibre is big, optical fiber manufacturing cost height, difficult treatment.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of full fiberize super continuous spectrums lasing light emitter based on multicomponent doping silica fiber is provided.
Full fiberize super continuous spectrums lasing light emitter based on multicomponent doping silica fiber is made up of semiconductor laser pumping source, multimode fiber bundling device, the first high reflectance fiber grating, Yb doping double-cladding optical fiber, multicomponent doping silica fiber and the second high reflectance fiber grating; Laser pumping source, multimode fiber bundling device, the first high reflectance fiber grating, Yb doping double-cladding optical fiber, multicomponent doping silica fiber and the second high reflectance fiber grating link to each other in order; The semiconductor laser pumping source provides pump energy through the multimode fiber bundling device and the first high reflectance fiber grating; Yb doping double-cladding 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; The hundred picosecond ultra-short pulse lasers that produced encourage multicomponent doping silica fiber once more, produce super continuous spectrums laser, export via the second high reflectance fiber grating.
The component of described multicomponent doping silica fiber 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.The described first high reflectance fiber grating and the second high reflectance fiber grating are a kind of fiber gratings that has 80%～100% reflectivity at 1020～1085nm wave band.
The present invention be a kind of spectrum-stable, simple in structure, average power is bigger, lower-cost super continuum source.Adopting multicomponent silica fiber that Bi/Cr the mixes self-saturation absorber as full fiberize, is of the present invention one big innovative point, can obtain that spectrum is smooth, the broadband super continuous spectrums lasing light emitter of spectral coverage from 1000nm to 2200nm.Through full fused fiber splice, monomode fiber was exported during super continuum source was made, low cost of manufacture, and good stability is suitable for various accurate measurements field as light source applications.
Description of drawings
Fig. 1 is a kind of installation drawing of the full fiberize super continuum source based on multicomponent doping silica fiber
Among the figure, semiconductor laser pumping source 1, multimode fiber bundling device 2, the first 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, the second high reflectance fiber grating 7.
Embodiment
Specify embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, form by semiconductor laser pumping source 1, multimode fiber bundling device 2, the first high reflectance fiber grating 3, Yb doping double-cladding optical fiber 4, multicomponent doping silica fiber 6 and the second high reflectance fiber grating 7 based on the full fiberize super continuous spectrums lasing light emitter of multicomponent doping silica fiber; Semiconductor laser pumping source 1, multimode fiber bundling device 2, the first high reflectance fiber grating 3, Yb doping double-cladding optical fiber 4, multicomponent doping silica fiber 6 link to each other with the second high reflectance fiber grating 7 in order; Weld 5 is the tie point of Yb doped fiber and Bi doped fiber, and loss is less than 0.1dB.Semiconductor laser pumping source 1 provides pump energy through the multimode fiber bundling device 2 and the first high reflectance fiber grating 3; 6 excitations cause the stimulated Brillouin scattering effect in the optical fiber to Yb doping double-cladding optical fiber 4 with multicomponent doping silica fiber; Cause the laser pulse compression; The hundred picosecond ultra-short pulse lasers that produced encourage multicomponent doping silica fiber 6 once more, produce super continuous spectrums laser, via 7 outputs of the second high reflectance fiber grating.
The component of described multicomponent doping silica fiber 6 comprises 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.The described first high reflectance fiber grating 3 and the second high reflectance fiber grating 7 are a kind ofly to have the fiber grating of 80%～100% reflectivity at 1020～1085nm wave band, and the long coupling of two grating reflection spikes.
Operation principle of the present invention:
The present invention is a kind of pulsed operation characteristic of fiber laser self and nonlinear characteristic in the chamber thereof of relying on, and realizes the new pattern laser light source of laser spectroscopy broadening.
Realize that high non-linear laser frequency conversion efficiency has two prerequisites, the one, it is big that the non linear coefficient of material is wanted, and another is that the peak power of fundamental frequency light wants high.The used nonlinear material of the present invention is for mixing the Bi/Cr silica fiber; Core diameter less than 5
m, have very high non linear coefficient.Continuous or the accurate continuous light of diode-end-pumped gets in the Yb doped fiber, after being absorbed by Yb optical fiber, in the resonant cavity that grating pair constitutes, forms laser generation.Bi/Cr doping silica fiber forms passive Q-adjusted laser as the self-saturation absorber in the chamber.When the power of passive Q-adjusted laser is higher than stimulated Brillouin scattering (SBS) threshold value in the fiber laser, then produce SBS, cause pulse division and pulse compression, form the ultra-short pulse laser of pulsewidth, and obtain high laser peak power thus less than 1ns.Because high laser peak power will produce stimulated Raman scattering (SRS) effect of cascade in optical fiber, and laser spectroscopy through what Raman frequency shift extends near the zero-dispersion wavelength of fiber.At this moment; Because the effect of modulational instability (MI) produces more burst pulse; The ultra-short pulse laser that obtains is through four wave mixing (FWM), cross-phase modulation effects such as (XPM); Make spectrum obtain further broadening, thereby obtain the super continuous spectrums lasing light emitter that spectral coverage is wide, spectrum is more smooth.Its spectral coverage can extend to the 2200nm at silica fiber transmission window edge from the laser pumping wavelength always to long wave.
Claims (1)
1. full fiberize super continuous spectrums lasing light emitter based on multicomponent doping silica fiber is characterized in that it is made up of semiconductor laser pumping source (1), multimode fiber bundling device (2), the first high reflectance fiber grating (3), Yb doping double-cladding optical fiber (4), multicomponent doping silica fiber (6) and the second high reflectance fiber grating (7); Semiconductor laser pumping source (1), multimode fiber bundling device (2), the first high reflectance fiber grating (3), Yb doping double-cladding optical fiber (4), multicomponent doping silica fiber (6) and the second high reflectance fiber grating (7) link to each other in order; Semiconductor laser pumping source (1) provides pump energy through the multimode fiber bundling device (2) and the first high reflectance fiber grating (3); Yb doping double-cladding optical fiber (4) and multicomponent doping silica fiber (6) excitation cause the stimulated Brillouin scattering effect in the Yb doping double-cladding optical fiber (4); Cause the laser pulse compression; The hundred picosecond ultra-short pulse lasers that produced encourage multicomponent doping silica fiber (6) once more; Produce super continuous spectrums laser, export via the second high reflectance fiber grating (7); The component of described multicomponent doping silica fiber (6) comprises Si, Cr and Bi.
2.A kind of full fiberize super continuous spectrums lasing light emitter based on multicomponent doping silica fiber 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.
3.A kind of full fiberize super continuous spectrums lasing light emitter based on multicomponent doping silica fiber according to claim 1 is characterized in that the described first high reflectance fiber grating (3) and the second high reflectance fiber grating (7) are a kind of fiber gratings that has 80%～100% reflectivity at 1020～1085nm wave band.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100397296A CN102130413B (en) | 2011-02-17 | 2011-02-17 | Full optical fiber type supercontinuum laser source based on multi-component-doped silica optical fiber |
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| CN2011100397296A CN102130413B (en) | 2011-02-17 | 2011-02-17 | Full optical fiber type supercontinuum laser source based on multi-component-doped silica optical fiber |
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| CN102130413B true CN102130413B (en) | 2012-03-28 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| ES2519866B2 (en) * | 2013-05-07 | 2015-05-04 | Universitat De València | Broadband super-continuous light emitting device and uses thereof |
| US10008819B2 (en) * | 2014-09-16 | 2018-06-26 | Ipg Photonics Corporation | Broadband red light generator for RGB display |
| CN105826800B (en) * | 2016-04-21 | 2020-06-16 | 宁波大学 | All-fiber broadband flat mid-infrared super-continuum spectrum light source |
| CN106571580B (en) * | 2016-10-19 | 2019-03-01 | 电子科技大学 | A kind of mid-infrared fiber laser of wavelength wideband adjustable |
| CN108039635B (en) * | 2017-12-07 | 2019-08-20 | 电子科技大学 | A kind of full optical fiber laser system and method generating ultrashort light pulse |
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| CN100418277C (en) * | 2005-05-20 | 2008-09-10 | 南开大学 | Continuous running high-power multi-wavelength optical fiber light source based on ultra continuous spectrum |
| GB0815896D0 (en) * | 2008-09-01 | 2008-10-08 | Federation | Light emitting apparatus |
| CN201332211Y (en) * | 2008-12-31 | 2009-10-21 | 中国科学院西安光学精密机械研究所 | Visible light enhancement super continuous spectrum laser system with full optical fiber structure |
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