CN201332211Y - Visible light enhancement super continuous spectrum laser system with full optical fiber structure - Google Patents
Visible light enhancement super continuous spectrum laser system with full optical fiber structure Download PDFInfo
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- CN201332211Y CN201332211Y CNU2008202285759U CN200820228575U CN201332211Y CN 201332211 Y CN201332211 Y CN 201332211Y CN U2008202285759 U CNU2008202285759 U CN U2008202285759U CN 200820228575 U CN200820228575 U CN 200820228575U CN 201332211 Y CN201332211 Y CN 201332211Y
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Abstract
The utility model discloses a visible light enhancement super continuous spectrum laser system with a full optical fiber structure, which comprises an optical fiber mode locked laser, a single mode optical fiber amplifier, an optoisolator, a doubly clad optical fiber amplifier and nonlinear optical crystal optical fiber, wherein the single mode optical fiber amplifier is connected with the output of the optical fiber mode locked laser through optical fiber; the optoisolator is connected with the output of the single mode optical fiber amplifier through optical fiber; the doubly clad optical fiber amplifier is connected with the optoisolator through optical fiber; and the output end of the doubly clad optical fiber amplifier is connected with the input end of the nonlinear optical crystal optical fiber through laver optical fiber. The utility model solves the technical problems of large volume, low coupling efficiency and limited spectrum range of large-power laser coupling devices in the prior art, and has the advantages of simple structure, small volume, high coupling efficiency, reliable engineering, capability of covering the visible light band and the like.
Description
Technical field
The utility model relates to laser field, is specifically related to a kind of visible light strengthened super continuous spectrum laser system of all optical fibre structure.
Background technology
When laser pulse transmits, various nonlinear effects can take place in the high non-linearity medium, make video stretching to hundreds of nanometer even wideer, this extreme video stretching phenomenon is called the generation of super continuous spectrums.Super continuum source is compared with other light source, has continuous spectrum bandwidth, reliable and stable, plurality of advantages such as the coherence is good.Super continuous spectrums laser shows and spectrum analysis etc. all has very important using value aspect many in biomedicine, light metrology, optical communication, coherent measurement, optics.The super continuous spectrums of visible light wave range has inestimable value in fields such as laser display, biological spectrum analysis, electrooptical countermeasuress especially.With respect to other solid or liquid nonlinear dielectric, highly nonlinear optical fiber, is more suitable in being used in the super continuous spectrums generation system with practical value with the physical characteristic of its portable and stable as nonlinear dielectric.Existing how tame both at home and abroad at present research institution uses highly nonlinear optical fiber as super continuous spectrums generation medium, under laser pumping, produce super continuous spectrums, but owing to be subjected to the restriction of nonlinear optical fiber zero dispersion point, using under the situation of infrared laser as pumping source, the wave band that the general super continuous spectrums that produces covers concentrates near infrared band mostly, have only a small amount of spectrum to enter visible light wave range, this has just limited the application of super continuous spectrums at visible-range.And also be a key factor of restriction super continuous spectrums average power to the coupling of nonlinear optical fiber as the laser of pumping, existing high-power laser coupling device all adopts set of lenses to do the space coupling, the set of lenses design is complicated, bulky, coupling efficiency also is difficult to improve, this coupling process is difficult to realize the requirement of Engineering Reliability also to the environmental requirement harshness.
Summary of the invention
The purpose of this utility model is to provide a kind of visible light strengthened super continuous spectrum laser system of all optical fibre structure, and it has solved technical problems such as the high-power laser coupling device volume is huge in the background technology, coupling efficiency is low, spectral region is limited.
The technical solution of the utility model is:
A kind of system of visible light strengthened super continuous spectrum laser of all optical fibre structure, comprise optical fiber mode-locked laser 1, the monomode fiber amplifier 2 that is connected through optical fiber with the output of optical fiber mode-locked laser 1, the optical isolator 3 that is connected through optical fiber with the output of monomode fiber amplifier 2, the double-cladding fiber amplifier 4 that is connected through optical fiber with the output of optical isolator 3, this system also comprises non-linear photon crystal optical fiber 6, and the output of double-cladding fiber amplifier 4 is connected by drawing dimension optical fiber 5 with the input of non-linear photon crystal optical fiber 6.
The output of above-mentioned tapered fiber 5 and double-cladding fiber amplifier 4 and the input of non-linear photon crystal optical fiber 6 be connected to welding.
Above-mentioned non-linear photon crystal optical fiber 6 is two or more.
Be connected to welding between the above-mentioned non-linear photon crystal optical fiber 6.
The utlity model has simple in structurely, volume is little, the coupling efficiency height, and engineering is reliable, can cover advantages such as visible light wave range.
Description of drawings:
Fig. 1 is the structural representation of the visible light strengthened super continuous spectrum laser system of the utility model all optical fibre structure.
Reference numeral:
1-optical fiber mode-locked laser, 2-monomode fiber amplifier, 3-optical isolator, 4-double-cladding fiber amplifier, 5-tapered fiber, 6-non-linear photon crystal optical fiber.
Embodiment:
Referring to Fig. 1,
A kind of system of visible light strengthened super continuous spectrum laser of all optical fibre structure, comprise optical fiber mode-locked laser 1, the monomode fiber amplifier 2 that is connected through optical fiber with the output of optical fiber mode-locked laser 1, the optical isolator 3 that is connected through optical fiber with the output of monomode fiber amplifier 2, the double-cladding fiber amplifier 4 that is connected through optical fiber with the output of optical isolator 3, this system also comprises non-linear photon crystal optical fiber 6, and the output of double-cladding fiber amplifier 4 is tieed up optical fiber 5 welding mutually with the input of non-linear photon crystal optical fiber 6 by drawing.Non-linear photon crystal optical fiber 6 is two or more, and it is welding each other, and reduces step by step along zero-dispersion wavelength.
Operation principle is as follows:
The seed light source of this system adopts homemade " 8 " font chamber mode locked fiber laser, this laser output nJ level single pulse energy, spectral width 1.5nm, the about 500ps of pulse duration; The short-pulse laser that produces by optical fiber mode-locked laser 1 carries out the energy amplification through optical fiber input single-mode ytterbium-doping fiber amplifier 2; Under the pumping of the 976nm semiconductor laser that is coupled by wavelength division multiplexer, the seed laser single pulse energy is amplified to tens nJ; Then monomode fiber amplifier 2 amplifying signals are coupled into again the fibre core of double clad Yb dosed optical fiber through fused fiber splice by optical isolator 3; This doubly clad optical fiber is connected to 6 100um core optical fibers by the bundling device in the double-cladding fiber amplifier, and this six roots of sensation optical fiber is all connecting the output of 976nm semiconductor laser, for the double clad Yb dosed optical fiber provides pump light.Such bundling device constitutes another level fiber amplifier together with semiconductor laser, double clad Yb dosed optical fiber, and under tens of watts of 976nm laser pumping power, the pulsed laser energy that previous stage is come is amplified to the uJ magnitude.The tapered fiber 5 that forms through fused biconical taper is as pattern matching optical fiber again, the mould field parameter of one end and doubly clad optical fiber coupling, the mould field parameter of the other end is with non-linear photon crystal optical fiber 6 couplings, with the nonlinear optical fiber input of doubly clad optical fiber output, different zero dispersion values respectively with the tapered fiber welding, just finished the low-loss coupling of amplifying laser, in nonlinear optical fiber 6, excited super continuous spectrums to carry out the transition to visible light wave range gradually to nonlinear optical fiber.Use similar fused biconical taper optical fiber as mould matching transition optical fiber, or directly use the method for welding, can be with the welding successively of two or more zero-dispersion wavelengths nonlinear optical fiber decrescence, just finished the cascade of nonlinear optical fiber, this zero dispersion values decrescence cascaded optical fiber can shift the super continuous spectrums energy in the laser pulse transmission course to shortwave, realize the enhancing of visible light wave range.
Claims (4)
1. the visible light strengthened super continuous spectrum laser system of an all optical fibre structure, comprise optical fiber mode-locked laser (1), the monomode fiber amplifier (2) that is connected through optical fiber with the output of optical fiber mode-locked laser (1), the optical isolator (3) that is connected through optical fiber with the output of monomode fiber amplifier (2), the double-cladding fiber amplifier (4) that is connected through optical fiber with the output of optical isolator (3), this system also comprises non-linear photon crystal optical fiber (6), it is characterized in that: the output of described double-cladding fiber amplifier (4) is connected by drawing dimension optical fiber (5) with the input of non-linear photon crystal optical fiber (6).
2. the visible light strengthened super continuous spectrum laser system of all optical fibre structure according to claim 1 is characterized in that: the output of described tapered fiber (5) and double-cladding fiber amplifier (4) and the input of non-linear photon crystal optical fiber (6) be connected to welding.
3. the visible light strengthened super continuous spectrum laser system of all optical fibre structure according to claim 1 and 2 is characterized in that: described non-linear photon crystal optical fiber (6) is two or more, and their zero-dispersion wavelength successively decreases.
4. the visible light strengthened super continuous spectrum laser system of all optical fibre structure according to claim 3 is characterized in that: be connected to welding between the described non-linear photon crystal optical fiber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202285759U CN201332211Y (en) | 2008-12-31 | 2008-12-31 | Visible light enhancement super continuous spectrum laser system with full optical fiber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202285759U CN201332211Y (en) | 2008-12-31 | 2008-12-31 | Visible light enhancement super continuous spectrum laser system with full optical fiber structure |
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| CN201332211Y true CN201332211Y (en) | 2009-10-21 |
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| CNU2008202285759U Expired - Lifetime CN201332211Y (en) | 2008-12-31 | 2008-12-31 | Visible light enhancement super continuous spectrum laser system with full optical fiber structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101770132B (en) * | 2008-12-31 | 2012-09-05 | 中国科学院西安光学精密机械研究所 | Visible light strengthened super continuous spectrum laser system with all-optical-fiber structure |
| WO2013127334A1 (en) * | 2012-03-02 | 2013-09-06 | 武汉安扬激光技术有限责任公司 | Optical fiber laser with super continuous spectrum |
| CN103730822A (en) * | 2013-12-19 | 2014-04-16 | 中国科学院西安光学精密机械研究所 | Ultrashort pulse optical fiber laser system |
| CN104577677A (en) * | 2015-01-22 | 2015-04-29 | 中国科学院上海光学精密机械研究所 | Cascading photonic crystal fiber laser device |
| CN104737390A (en) * | 2013-05-07 | 2015-06-24 | 瓦伦西亚大学 | Device for emitting super-continuous wide-band light and uses thereof |
| CN109861065A (en) * | 2018-12-12 | 2019-06-07 | 江苏师范大学 | Visible light strengthened super continuous spectrum light source based on suspension core fibre |
-
2008
- 2008-12-31 CN CNU2008202285759U patent/CN201332211Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770132B (en) * | 2008-12-31 | 2012-09-05 | 中国科学院西安光学精密机械研究所 | Visible light strengthened super continuous spectrum laser system with all-optical-fiber structure |
| 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 |
| WO2013127334A1 (en) * | 2012-03-02 | 2013-09-06 | 武汉安扬激光技术有限责任公司 | Optical fiber laser with super continuous spectrum |
| CN104737390A (en) * | 2013-05-07 | 2015-06-24 | 瓦伦西亚大学 | Device for emitting super-continuous wide-band light and uses thereof |
| CN104737390B (en) * | 2013-05-07 | 2018-04-13 | 瓦伦西亚大学 | Broadband super continuum light ballistic device and application thereof |
| CN103730822A (en) * | 2013-12-19 | 2014-04-16 | 中国科学院西安光学精密机械研究所 | Ultrashort pulse optical fiber laser system |
| CN103730822B (en) * | 2013-12-19 | 2017-07-28 | 中国科学院西安光学精密机械研究所 | Ultrashort pulse optical fiber laser system |
| CN104577677A (en) * | 2015-01-22 | 2015-04-29 | 中国科学院上海光学精密机械研究所 | Cascading photonic crystal fiber laser device |
| CN104577677B (en) * | 2015-01-22 | 2018-08-14 | 中国科学院上海光学精密机械研究所 | Cascade-connection photon crystal optical fiber laser |
| CN109861065A (en) * | 2018-12-12 | 2019-06-07 | 江苏师范大学 | Visible light strengthened super continuous spectrum light source based on suspension core fibre |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091021 Effective date of abandoning: 20081231 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20091021 Effective date of abandoning: 20081231 |