CN103001110A - Optical fiber laser based on broadband spectrum - Google Patents
Optical fiber laser based on broadband spectrum Download PDFInfo
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- CN103001110A CN103001110A CN2012105184271A CN201210518427A CN103001110A CN 103001110 A CN103001110 A CN 103001110A CN 2012105184271 A CN2012105184271 A CN 2012105184271A CN 201210518427 A CN201210518427 A CN 201210518427A CN 103001110 A CN103001110 A CN 103001110A
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Abstract
The invention relates to an optical fiber laser based on broad-band spectrum, which comprises a high-reflection coating plated reflection cavity mirror, a pumping source, an optical coupling device and a gain optical part reflection resonant device, wherein the optical fiber laser based on broad-band spectrum forms broadband laser to be output through a pair of broadband reflection resonant cavities, and the broadband laser is used as a seed laser for amplifying an optical fiber. The optical fiber laser based on broad-band spectrum disclosed by the invention has the characteristics of being low in threshold value and easy to pair, and efficiently inhibits nonlinear effect in the optical fiber, so that the single pulse energy and peak power of a pulse optical fiber laser are obviously promoted, and the stability of output power of the optical fiber laser is improved.
Description
Technical field
The present invention relates to laser technology field, relate in particular to a kind of based on the broadband spectral fiber laser.
Background technology
Now, the research of relevant fiber laser becomes numerous scientists' perpetual object gradually.How to make fiber laser when stablizing power output, improve fiber laser single pulse energy and peak power by the effective technology means, and can effectively suppress the emphasis that nonlinear effect in the optical fiber becomes domestic and international research.1991 " optics letters " reported one piece and has been entitled as " Narrow-linewidth stimulated Brillouin fiber laser and applications ", the stimulated Brillouin effect of narrow cable and wide optical fiber laser introduced in article, the author has done corresponding research for nonlinear effect in the fiber laser in the narrow linewidth situation, but result of study for how to suppress this key technology difficult point of nonlinear effect by effective ways does not give to explain in detail fully.2003, the number of applying for a patent CN200310109997.6, the Changchun ray machine the patent of a piece by name " high power, narrow linewidth double-clad optical fiber laser and manufacture method " realized arrowband output, but the method is difficult to suppress the nonlinear effect in the optical fiber.Traditional fiber laser seed source is comprised of the narrowband reflection resonant cavity usually, be easy to produce nonlinear effect, and the fiber laser that is comprised of the narrowband reflection resonant cavity and the lifting of pulse optical fiber single pulse energy and peak power are restricted, so that the stability of fiber laser power output is lower, and the resonant cavity that consists of pairing difficulty.A kind of the comparing with traditional fiber laser by a pair of broadband reflection resonant cavity based on the broadband spectral fiber laser of the present invention's design forms broad band laser output, and carries out fiber amplifier with this broad band laser as seed source.The characteristics that the broadband spectral fiber laser of this invention utilizes broadband spectral reflection resonant cavity to have low threshold value, easily match, effectively suppressed the generation of nonlinear effect in the optical fiber, promote so that pulse optical fiber single pulse energy and peak power have had significantly, improved the stability of fiber laser power output.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides at least a kind of useful commerce to select.For this reason, one object of the present invention is to propose that a kind of nonlinear effect is little, stability is high based on the broadband spectral fiber laser.
A kind of based on the broadband spectral fiber laser according to the embodiment of the invention, comprise be coated with high reflectivity film stack reflecting cavity mirror, pumping source, optical coupling device, gain fibre, part reflects resonating device, coupling unit, it is characterized in that: described high reflectivity film stack reflecting cavity mirror and described part reflection resonating device form the broadband reflection resonant cavity, the pump light of described pumping source output forms broad band laser through described broadband reflection resonant cavity, and described broad band laser enters described gain fibre through described coupling unit and forms broad band laser output.
In one embodiment of the invention, described broadband spectral fiber laser amplifies as the laser seed source with broad band laser.
In one embodiment of the invention, described optical coupling device is side pumping coupler or end pumping coupler.
In one embodiment of the invention, described pumping source is semiconductor laser, fiber laser or solid state laser.
In one embodiment of the invention, described gain fibre is double clad or multi-clad.
In one embodiment of the invention, described gain fibre is doped fiber, and the doping particle is one or more among Yb, Er, the Tm.
In one embodiment of the invention, the inner cladding of described gain fibre is shaped as octagon, D shape or hexagonal.
In one embodiment of the invention, described part reflection resonating device is to be coated with reflection cavity or the band optical fiber grating that low anti-film is.
In one embodiment of the invention, the amplification system of described broadband spectral fiber laser is that one-level is amplified or multistage amplification.
The present invention has designed a kind of based on the broadband spectral fiber laser.Its characteristics are to export by using a pair of broadband reflection resonant cavity to form broad band laser, and carry out fiber amplifier with this broad band laser as seed source.Broadband spectral fiber laser of the present invention has suppressed nonlinear effect in the optical fiber effectively, promotes so that pulse optical fiber single pulse energy and peak power have had significantly, has improved the stability of fiber laser power output.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is a kind of structure principle chart based on the broadband spectral fiber laser;
Fig. 2 is a kind of structure principle chart based on the broadband spectral fiber laser;
Fig. 3 is a kind of structure principle chart based on the broadband spectral fiber laser;
Fig. 4 is a kind of structure principle chart based on the broadband spectral fiber laser.
Wherein, 1 represents that being coated with high anti-broadband film is reflecting cavity mirror; 2 expression pumping sources; 3 expression optical coupling devices; 4 expression gain fibres; 5 expression band optical fiber gratings; 6 expression coupling units; It is reflecting cavity mirror that 7 expressions are coated with low anti-broadband film; 8 expression Q-modulating devices.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein identical or similar label represents identical or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in the terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected with, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under the Second Characteristic and tiltedly, or only represent that the First Characteristic level height is less than Second Characteristic.
A kind of based on the broadband spectral fiber laser according to the embodiment of the invention, comprise be coated with high reflectivity film stack reflecting cavity mirror, pumping source, optical coupling device, gain fibre, part reflects resonating device, coupling unit, it is characterized in that: the high reflectivity film stack reflecting cavity mirror reflects resonating device with part and forms the broadband reflection resonant cavity, the pump light of pumping source output forms broad band laser through the broadband reflection resonant cavity, and broad band laser enters gain fibre through coupling unit and forms broad band laser output.
In one embodiment of the invention, the broadband spectral fiber laser amplifies as the laser seed source with broad band laser.
In one embodiment of the invention, optical coupling device is side pumping coupler or end pumping coupler.
In one embodiment of the invention, pumping source is semiconductor laser, fiber laser or solid state laser.
In one embodiment of the invention, gain fibre is double clad or multi-clad.
In one embodiment of the invention, gain fibre is doped fiber, and the doping particle is one or more among Yb, Er, the Tm.
In one embodiment of the invention, the inner cladding of gain fibre is shaped as octagon, D shape or hexagonal.
In one embodiment of the invention, partly reflecting resonating device is to be coated with reflection cavity or the band optical fiber grating that low anti-film is.
The amplification system of broadband spectral fiber laser in one embodiment of the invention, is that one-level is amplified or multistage amplification.
For making those skilled in the art understand better the present invention, that the present invention is described in detail is as follows below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of constructional device based on the broadband spectral fiber laser comprises that being coated with high anti-broadband film is reflecting cavity mirror, coupling unit, pumping source, optical coupling device, gain fibre, band optical fiber grating.Wherein, be coated with high reflectivity film stack reflecting cavity mirror 1 and band optical fiber grating 5 formation broadband reflection resonant cavitys, pumping source 2 pump light of exporting enters gain fibre 4 by broadband reflection resonant cavity Output of laser through optical coupling device 3, and amplifies through one section gain fibre 4 as seed source with this.
As shown in Figure 2, a kind of constructional device based on the broadband spectral fiber laser comprises that being coated with high reflectivity film stack reflecting cavity mirror, coupling unit, pumping source, optical coupling device, gain fibre, being coated with low anti-broadband film is reflecting cavity mirror.Wherein, being coated with high anti-broadband film is that reflecting cavity mirror 1 is that reflecting cavity mirror 7 forms the broadband reflection resonant cavitys with being coated with low anti-broadband film, pumping source 2 pump light of exporting enters gain fibre 4 by broadband reflection resonant cavity Output of laser through optical coupling device 3, and amplifies through one section gain fibre 4 as seed source with this.
As shown in Figure 3, comprise that being coated with high anti-broadband film is reflecting cavity mirror, Q-modulating device, coupling unit, pumping source, optical coupling device, gain fibre, band optical fiber grating.Wherein, high anti-broadband film is that reflecting cavity mirror 1 and band optical fiber grating 5 form the broadband reflection resonant cavity, pumping source 2 pump light of exporting enters gain fibre 4 through optical coupling device 3,8 pairs of Q-modulating devices are transferred Q by broadband reflection resonant cavity Output of laser, and the pulse laser of output amplifies through one section gain fibre 4 as seed source.
As shown in Figure 4, a kind of constructional device based on the broadband spectral fiber laser comprises that being coated with high anti-broadband film is reflecting cavity mirror, Q-modulating device, coupling unit, pumping source, optical coupling device, gain fibre, be coated with low anti-broadband film is reflecting cavity mirror.Wherein, being coated with high anti-broadband film is that reflecting cavity mirror 1 is that reflecting cavity mirror 7 forms the broadband reflection resonant cavitys with being coated with low anti-broadband film, pumping source 2 pump light of exporting enters gain fibre 4 through optical coupling device 3,8 pairs of Q-modulating devices are transferred Q by broadband reflection resonant cavity Output of laser, and the pulse laser of output amplifies through one section gain fibre 4 as seed source.
The present invention has designed a kind of based on the broadband spectral fiber laser.Its characteristics are to export by using a pair of broadband reflection resonant cavity to form broad band laser, and carry out fiber amplifier with this broad band laser as seed source.Broadband spectral fiber laser of the present invention has suppressed nonlinear effect in the optical fiber effectively, promotes so that pulse optical fiber single pulse energy and peak power have had significantly, has improved the stability of fiber laser power output.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiments of the invention, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment in the situation that does not break away from principle of the present invention and aim within the scope of the invention, modification, replacement and modification.
Claims (9)
1. one kind based on the broadband spectral fiber laser, comprise be coated with high reflectivity film stack reflecting cavity mirror, pumping source, optical coupling device, gain fibre, part reflects resonating device, coupling unit, it is characterized in that: described high reflectivity film stack reflecting cavity mirror and described part reflection resonating device form the broadband reflection resonant cavity, the pump light of described pumping source output forms broad band laser through described broadband reflection resonant cavity, and described broad band laser enters described gain fibre through described coupling unit and forms broad band laser output.
2. laser according to claim 1, it is characterized in that: described broadband spectral fiber laser amplifies as the laser seed source with broad band laser.
According to claim 1 with 2 described lasers, it is characterized in that: described optical coupling device is side pumping coupler or end pumping coupler.
4. described laser according to claim 1-3, it is characterized in that: described pumping source is semiconductor laser, fiber laser or solid state laser.
5. laser according to claim 1, it is characterized in that: described gain fibre is double clad or multi-clad.
6. laser according to claim 6, it is characterized in that: described gain fibre is doped fiber, the doping particle is one or more among Yb, Er, the Tm.
7. laser according to claim 1, it is characterized in that: the inner cladding of described gain fibre is shaped as octagon, D shape or hexagonal.
8. laser according to claim 1 is characterized in that: described part reflection resonating device is reflection cavity or the band optical fiber grating that is coated with low anti-film system.
9. laser according to claim 1 is characterized in that: the amplification system of described broadband spectral fiber laser is that one-level is amplified or multistage amplification.
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| CN2012105184271A CN103001110A (en) | 2012-12-05 | 2012-12-05 | Optical fiber laser based on broadband spectrum |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104752946A (en) * | 2014-08-25 | 2015-07-01 | 深圳市创鑫激光股份有限公司 | Pulse width adjusting fiber laser based on broadband seed resource |
| CN104752941A (en) * | 2014-08-25 | 2015-07-01 | 深圳市创鑫激光股份有限公司 | Pulse width adjusting fiber laser based on UWB (Ultra Wide Band) light source |
| CN105428978A (en) * | 2015-12-29 | 2016-03-23 | 浙江大学 | Method of generating middle infrared band laser with adjustable broadband and optical parametric oscillator |
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| JP2010239036A (en) * | 2009-03-31 | 2010-10-21 | Furukawa Electric Co Ltd:The | Cascade raman resonator and optical fiber laser |
| CN102637990A (en) * | 2012-04-25 | 2012-08-15 | 清华大学 | Optical fiber amplifying system and optical fiber amplifying method |
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| JP2010239036A (en) * | 2009-03-31 | 2010-10-21 | Furukawa Electric Co Ltd:The | Cascade raman resonator and optical fiber laser |
| CN101719621A (en) * | 2009-12-02 | 2010-06-02 | 北京交通大学 | Large-power multiwaveband multicore optical fiber laser |
| CN102637990A (en) * | 2012-04-25 | 2012-08-15 | 清华大学 | Optical fiber amplifying system and optical fiber amplifying method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104752946A (en) * | 2014-08-25 | 2015-07-01 | 深圳市创鑫激光股份有限公司 | Pulse width adjusting fiber laser based on broadband seed resource |
| CN104752941A (en) * | 2014-08-25 | 2015-07-01 | 深圳市创鑫激光股份有限公司 | Pulse width adjusting fiber laser based on UWB (Ultra Wide Band) light source |
| CN104752941B (en) * | 2014-08-25 | 2016-10-26 | 深圳市创鑫激光股份有限公司 | Adjustable pulse width pulse optical fiber based on ultra broadband light source |
| CN104752946B (en) * | 2014-08-25 | 2016-11-16 | 深圳市创鑫激光股份有限公司 | Adjustable pulse width pulse optical fiber based on broadband seed source |
| CN105428978A (en) * | 2015-12-29 | 2016-03-23 | 浙江大学 | Method of generating middle infrared band laser with adjustable broadband and optical parametric oscillator |
| CN105428978B (en) * | 2015-12-29 | 2018-06-15 | 浙江大学 | Generate the method and optical parametric oscillator of the adjustable middle infrared band laser in broadband |
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Application publication date: 20130327 |