CN102147551A - Multimode optical fibre amplifier and multimode optical fibre amplifying system - Google Patents
Multimode optical fibre amplifier and multimode optical fibre amplifying system Download PDFInfo
- Publication number
- CN102147551A CN102147551A CN2011100818172A CN201110081817A CN102147551A CN 102147551 A CN102147551 A CN 102147551A CN 2011100818172 A CN2011100818172 A CN 2011100818172A CN 201110081817 A CN201110081817 A CN 201110081817A CN 102147551 A CN102147551 A CN 102147551A
- Authority
- CN
- China
- Prior art keywords
- multimode
- optical fiber
- multimode optical
- fiber amplifier
- amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06704—Housings; Packages
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08018—Mode suppression
- H01S3/0804—Transverse or lateral modes
Abstract
The invention provides a multimode optical fibre amplifier and a multimode optical fibre amplifying system, wherein the multimode optical fibre amplifier comprises a multimode optical fibre encircled on an object surface and encircled to be a three-dimensional helical curve shape with a lead and a torque. For example, the multimode optical fibre of the three-dimensional helical curve shape is in a right spiral shape or in a left spiral shape. The multimode optical fibre amplifying system comprises a laser light source and the multimode optical fibre and the like. The invention has the advantage that the multimode optical fibre of the three-dimensional helical curve shape can enable the beam quality to reach the diffraction limit while the signal light is amplified; and M2 is less than 1.2, wherein M2=1 expresses that the beam with quality reaching the diffraction limit is Gauss beam.
Description
Technical field
The invention belongs to field fiber, particularly a kind of multimode fiber amplifier and multimode optical fiber amplification system.
Background technology
Single mode (SM) rare earth doped fiber laser instrument and amplifier are widely adopted in telecommunication and industrial processes field.Fiber laser has compactness, reliable, low-cost and good advantages such as beam quality, but be limited by low relatively pulse peak power based on the laser instrument of optical fiber always.
This low peak Power Limitation is because the nonlinear effect distortion in low-yield storage and the optical fiber causes.Because the maximum population inversion of rare earth doped fiber is depended in the laser energy storage, the nonlinear effect of the most significant restriction pulse energy and peak power is from phase modulation (PM) (SPM), stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS).For continuous or long pulse fiber laser system, thereby stimulated Brillouin scattering stops high-average power or peak power pulses at spread fiber.
Current have following several method to break through these restrictions:
1, Taverner et al etc. adopt the long-pending Er-doped fiber of big die face, the numerical aperture NA=0.066-0.0817 of this optical fiber, (specifically can be referring to list of references: " D.Taverner; D.J.Richardson; L.Dong, J.E.Caplen, K.Williams; and R.V.Penty; Opt.Lett.22,378 (1997 " reaches " G.P.Lees, D.Taverner; D.J.Richardson to core diameter 14-17 μ m (V=2.2-2.4), L.Dong, and T.P.Newson, Electron.Lett.33,393 (1997) ")); (with respect to conventional single-mode fiber, as healthy and free from worry SM28, NA=0.15); just can adopt the gain fibre of big fiber core in fiber amplifier, and the restriction higher order mode is exaggerated by reducing numerical aperture NA.This is because the nonlinear factor of big mode field area fibers reduces, thereby has improved the threshold value of nonlinear effect, so improves the peak power of laser.
2, the numerical aperture of minimizing optical fiber makes spontaneous emission light can't propagate or be excited to amplify in optical fiber, thereby increases the optical fiber energy capacity.For example, optical fiber pack look rate distributes and dopant ion distributes suppresses high-order modes at different levels by adjusting; Again for example, change the incident light parameter by adjusting cavity resonator structure.These methods make image intensifer can use shorter gain fibre, thus corresponding harmful nonlinear effect SPM and the threshold of SRS of having increased.
Concrete, in list of references 1 " D.Marcuse, J.Opt.Soc.Am.66,216 (1976) ", people such as Knight have proposed the mode by the diameter that increases photonic crystal fiber, reduce the nonlinear fiber coefficient.At list of references 2 " D.Marcuse; J.Opt.Soc.Am.66; 311 (1976). ", list of references 3 " C.C.Davis; Lasers and Electro-Optics (Cambridge U.Press; Cambridge; 1996) " and list of references 4 " J.P.Koplow, L.Goldberg, and D.A.V.Kliner, IEEEPhoton.Technol.Lett.10,793 (1998) " in, people such as Koplow propose to utilize multimode yb-doped double-clad fiber bending loss and use optical fiber to filter the higher order mode image intensifer.In list of references 5 " M.W.Sasnett and T.F.Johnston; Proc.SPIE1414; 21 (1991). ", people such as Galvanauskas have proposed a kind of spiral fiber core coupled fiber, and big mode field area keeps a new structured optical fiber of the optical fiber of single mode operation (LMA).
At application number is in the american documentation literature of US006496301B1, people such as Koplow have proposed a kind of fiber amplifier, this fiber amplifier comprises right cylinder and helical fibre, its effect of filtering high-order mode is relevant with cylindrical radius, and, by the Fig. 2 in the document as seen, at the diverse location of optical fiber, high-order mode P3 is in the xy plane, and this just shows just and the proposition relevant with the radius bend loss based on the effect of filtering high-order mode of this fiber amplifier.But along with the development of technology, increasing researchist studies show that, the effect of filtering high-order mode is not only relevant with radius bend, and also relevant with mode distortion.Specifically can be referring to following document:
1, list of references " D.Marcuse, Appl.Opt.21,4208 (1982) ".In the document, Marcuse thinks that the optical fiber of big mode field area twines curvature and distorts very serious to high-order mode.
2, list of references " J.M.Fini; " Bend-resistant design of conventional and microstructure fibers withvery large mode area, " Opt.Express 14; 69-81 (2006) ", " J.M.Fini; " Bend-compensated design oflarge-mode-area fibers, " Opt.Lett.31; 1963-1965 (2006). ", " John M.Fini; " Design oflarge-mode-area amplifier fibers resistant to bend-induced distortion, " J.Opt.Soc.Am.B 24; 1669-1676 (2007) " reach " J.M.Fini; " Intuitive modeling of bend-distortion in large-mode-area fibers, " Opt.Lett.32.1632-1634 (2007) ".In those lists of references, the result that the researchist obtains by modes such as numerical simulation calculation has proved that also the beam quality of fiber amplifier is relevant with mode distortion.
Therefore, how the existing fiber amplifier is improved,, become the technical task that those skilled in the art need to be resolved hurrily with better filtration high-order mode.
Summary of the invention
The object of the present invention is to provide a kind of multimode fiber amplifier and multimode optical fiber amplification system.
Reach other purposes in order to achieve the above object, multimode fiber amplifier provided by the invention comprises: encompass the multimode optical fiber of three-dimensional spiral curve shape, wherein, the multimode optical fiber of described three-dimensional spiral curve shape has the radius of spin, torque and helical pitch.
As a kind of optimal way, the helical pitch of the multimode optical fiber of described three-dimensional spiral curve shape can be variable or non-0 constant.
As a kind of optimal way, the spiral curve radius of the multimode optical fiber of described three-dimensional spiral curve shape can be variable or constant.
The present invention also provides a kind of multimode optical fiber amplification system, and it comprises: LASER Light Source; And above-mentioned described multimode fiber amplifier, be used to receive described LASER Light Source, second order mode after amplifying so that filtering is described in the laser or the light more than the second order mode, and output basic mode light.
The advantage of multimode fiber amplifier of the present invention and multimode optical fiber amplification system comprises: can make in the fiber amplifier beam quality near diffraction limit, M
2Less than 1.2, M wherein
2The beam quality of=1 expression diffraction limit: Gaussian beam; The multimode optical fiber of the three-dimensional spiral curve shape that comprises in the fiber amplifier in addition, can be used as the gain media of amplifying optical signals simultaneously.
Description of drawings
Fig. 1 is a multimode fiber amplifier synoptic diagram of the present invention.
Fig. 2 a and 2b are the preferred embodiment synoptic diagram of the multimode optical fiber that comprises of multimode fiber amplifier of the present invention.
Fig. 3 a to 3d is the preferred embodiment synoptic diagram of multimode fiber amplifier of the present invention.
Fig. 4 a to 4e is the light-beam position synoptic diagram of light beam different cross section position correspondence when multimode fiber amplifier transmits.
Fig. 5 is the experiment configuration diagram that adopts based on multimode fiber amplifier of the present invention.
The experimental result synoptic diagram of Fig. 6 to Fig. 9 for being obtained based on experiment framework shown in Figure 5.
Embodiment
See also Fig. 1 a and Fig. 1 b, multimode fiber amplifier of the present invention comprises the multimode optical fiber that is looped around a body surface and encompasses the three-dimensional spiral curve shape, and wherein, the multimode optical fiber of described three-dimensional spiral curve shape has helical pitch and torque.For example, as shown in Figure 1a, the multimode optical fiber of described three-dimensional spiral curve shape is the right-hand screw curve shape.Again for example, shown in Fig. 1 b, the multimode optical fiber of described three-dimensional spiral curve shape is the left-hand screw curve shape.
In addition, described multimode fiber amplifier can be the profile pump fiber amplifier, also can be end pumping fiber amplifier etc.
As a kind of preferred version, described multimode optical fiber encompasses right three-dimensional spiral curve shape as follows:
L(t)＝acos(t)
M(t)＝asin(t)，
N(t)＝b*t
Wherein, L (t), M (t) and N (t) are respectively a dimension in the three dimensional space coordinate system, and a is the radius of three-dimensional spiral curve, b is the pitch of three-dimensional spiral curve, and corresponding, the helical pitch of three-dimensional spiral curve is 2 π b, t ∈ [0, T], T is the maximal value of variable t.Based on above-mentioned expression formula as can be known, the total length of described multimode optical fiber is
Its curvature is
Torque is
For example, when L (t) is x dimension in the three dimensional space coordinate system, M (t) is the y dimension in the three-dimensional system of coordinate, when N (t) is a z dimension in the three-dimensional system of coordinate, the three-dimensional spiral curve shape that described multimode optical fiber encompasses adopts the xyz volume coordinate to be expressed as shown in Fig. 2 a:
x(t)＝acost
y(t)＝asint
z(t)＝b*t
Again for example, when L (t) is an x dimension in the three-dimensional system of coordinate, M (t) is the z dimension in the three dimensional space coordinate system, when N (t) is a y dimension in the three-dimensional system of coordinate, the three-dimensional spiral curve shape that described multimode optical fiber encompasses adopts the xyz volume coordinate to be expressed as shown in Fig. 2 b:
x(t)＝acost
y(t)＝b*t 。
z(t)＝asint
As another kind of preferred version, described multimode optical fiber encompasses right three-dimensional spiral curve shape as follows:
R(t)＝a*e
it
O(t)＝b*t
Wherein, R (t) and O (t) they are the dimension in the complex space, and a is the radius of three-dimensional spiral curve, and b is the pitch of three-dimensional spiral curve, t ∈ [0, T], and T is the maximal value of variable t.
As another preferred version, described multimode optical fiber encompasses left three-dimensional spiral curve shape as follows:
L(t)＝acost
M(t)＝-asint。
N(t)＝b*t
As another preferred version, described multimode optical fiber encompasses left three-dimensional spiral curve shape as follows:
R(t)＝a*e
-it
O(t)＝b*t
For above-mentioned described each multimode optical fiber, the helical pitch of each spiral curve and radius have following several situation:
First kind of situation: shown in Fig. 3 a, the helical pitch of the multimode optical fiber of described three-dimensional spiral curve shape is non-0 constant, and radius also is a constant, and corresponding, being used for can be cylindrical around the object of described multimode optical fiber, and for example, described object is a thick cable line etc.Preferably, described multimode optical fiber is thread-shaped at body surface.
Second kind of situation: shown in Fig. 3 b, the helical pitch of the multimode optical fiber of described three-dimensional spiral curve shape is non-0 constant, and radius is a variable, accordingly, be used for can being truncated cone-shaped around the object of described multimode optical fiber, preferred, described multimode optical fiber is thread-shaped at body surface.
The third situation: shown in Fig. 3 c, the helical pitch of the multimode optical fiber of described three-dimensional spiral curve shape is a variable, and radius is a constant, accordingly, being used for can be cylindrical around the object of described multimode optical fiber, and preferred, described multimode optical fiber is thread-shaped at body surface.
The 4th kind of situation: shown in Fig. 3 d, the helical pitch of the multimode optical fiber of described three-dimensional spiral curve shape is a variable, and radius also is a variable, accordingly, be used for can being truncated cone-shaped around the object of described multimode optical fiber, preferred, described multimode optical fiber is thread-shaped at body surface.
In addition, as a kind of preferred version, above-mentioned described each multimode optical fiber all can adopt the double clad structure, for example, and the long-pending rare-earth-ion-doped double clad structure of big die face etc.; The core diameter scope between 4 microns to 200 microns, around after the spirochetal length range of multimode optical fiber between the 30cm to 5000cm.
Need to prove, above-mentioned for example only for technical scheme of the present invention is described better, but not limitation of the present invention those skilled in the art should understand that, any multimode optical fiber with three-dimensional spiral curve shape of helical pitch all should be within the scope of the present invention.
Below will further specify the gain of described multimode fiber amplifier by numerical simulation and experiment:
Numerical simulation result: by repeatedly simulation, when determining that light beam transmits in described each multimode optical fiber, at multimode optical fiber diverse location basic mode light, second order mode LP to multimode optical fiber with different lead and radius
01And the damaged location difference of the high-order mode light more than the second order, for this reason, Fig. 4 a to Fig. 4 d that provides a simulation to be obtained is for reference.Wherein, Fig. 4 a to Fig. 4 d is basic mode light, the second order mode LP of the different cross section position that obtained when transmitting in multimode optical fiber of the present invention of light beam
01And the above high-order mode optical position synoptic diagram of second order.By each figure as seen, basic mode, second order mode LP
01Reach the above high-order mode of second order in different positions, different directions is impaired.But basic mode stands a loss less, second order mode LP
01And the above high-order mode of second order is born more loss in multimode fiber amplifier.Reason is: in the light amplification process, the gain of basic mode is greater than loss, so the basic mode luminous power is exaggerated; And second order mode LP
01And the loss that the above high-order mode of second order is subjected to because of mode distortion at multimode fiber amplifier is greater than gain, so second order mode LP
01And the above high-order mode luminous power of second order does not obtain amplifying.
Experiment:
Select that a core diameter is that 20 μ m, fiber core numerical aperture are 0.06, length is 4 meters large mode field area Yb-doped doubly clad optical fiber, wherein, this large mode field area Yb-doped doubly clad optical fiber is 6dB/m at the pump light absorption coefficient of 975-nm, this large mode field area Yb-doped doubly clad optical fiber spiral is twined the multimode fiber amplifier that formation has the spiral torque, and go into the pump signal wave multiplexer according to a termination shown in Figure 5, the pump light that pump laser sends is coupled in the described multimode fiber amplifier by this pump signal optical multiplexer, and coupling efficiency is up to 90%.Described multimode fiber amplifier adopts the structure of backward pump: promptly pump light and flashlight are propagated in described multimode fiber amplifier with opposite direction.The pump light wavelength is 976-nm, 105/125 μ m optical fiber output light, and maximum power output is 25W, and flashlight is the 1064-nm optical-fiber laser, and described multimode fiber amplifier output terminal is worn into 8 degree angles, enters described multimode fiber amplifier to prevent reflected light.
By as Fig. 6 to experimental result shown in Figure 9 as seen, the output laser beam quality is good, profile is circular, energy distribution becomes Gaussian; And the energy of multimode fiber amplifier amplifies efficient up to 66%; The output laser beam quality is through measuring M
2=1.05, this has confirmed that output beam is near the beam diffraction limit: Gaussian.Especially when the spiral girth of described multimode fiber amplifier equaled helical pitch, the laser beam of then described multimode fiber amplifier output was even and rounded, rather than oval.
In sum, multimode fiber amplifier of the present invention is owing to have lead of screw, and along with light beam is propagated in described multimode optical fiber, the curvature direction of described multimode optical fiber bending around the fiber core rotation of described multimode fiber amplifier, causes aggrieved Party to variation gradually.By aforesaid analog result and experimental result as seen, beam attenuation coefficient (dB/m) depends on spiral curvature and lead of screw, therefore, adopt suitable curvature and torsional deformation can distinguish high-order mode, make and to use core diameter to surpass 2.405 by described multimode fiber amplifier (this value is the threshold value of single-mode fiber diameter, V＜2.405) optical fiber, thus can make fiber laser and amplifier produce higher peak power and average power.In addition, for a doubly clad optical fiber that the inner cladding diameter is fixed, pump light is absorbed coefficient to be increased and exponential growth with core diameter, even use short optical fiber like this, signal also can be amplified to same power.Also have, even increase optical fiber core diameter and inner cladding diameter, and use the high power light pumping source, fiber lengths also can correspondingly increase.Also have, multimode fiber amplifier of the present invention can both be exported the beam quality of diffraction limit based on the input beam of any quality and pattern.
The difference of the fiber amplifier of document (the calling documents 1 in the following text) proposition that explanation the present invention that below will be more detailed and application number are US006496301B1:
1, the effect of the filtration of the fiber amplifier in the documents 1 high-order mode just relies on cylindrical radius, is equivalent to one-dimensional equation; And multimode fiber amplifier of the present invention filters the helical pitch that the effect of high-order mode will be fixed against the radius and the spiral optical fiber of object, is equivalent to two-dimentional equation.
2, among Fig. 2 of documents 1, P3 represents the second order and the above high-order mode (direction of the leakage of the high-order mode more than second order and the second order just) of second order of loss, by this Fig. 2 as seen, the direction of propagation of P3 is along radially cylindrical, promptly in the XY plane, those skilled in the art based on aforementioned analog result and experimental result as can be known, the helical pitch that this kind situation can only occur in helical fibre is 0, that is to say that it is 0 situation that the technology of documents 1 only just discloses helical pitch.
3, the fiber amplifier in the documents 1 utilizes cylinder to twine optical fiber, owing to there is not helical pitch, it need just can reach the effect of output near circular laser beam in succession with optical fiber on two orthogonal cylinders.And multimode fiber amplifier of the present invention just can be exported circular laser beam when helical pitch equates with the conveyor screw girth.
When 4, inserting the fiber amplifier of documents 1 between laser bodies and the laser output, need between laser bodies and laser output, need and add one section optical fiber, output terminal could move flexibly, and this that adds section optical fiber also can cause the generation of nonlinear effect; And multimode fiber amplifier one end of the present invention can be directly connected to laser instrument front end body, and the other end is directly connected to laser output.For example, for one 6 meters long mix the rare earth gain fibre,, can calculate the spirochetal length Z=4.8 rice that is wound in by this optical fiber if be wound in the spirality of radius a=3cm, helical pitch b=4cm.When this was mixed object (as the thick cable line) that rare earth gain fibre spirality is wrapped in certain flexibility and goes up, one of this optical fiber was linked laser instrument front end body, and an other end is linked laser output.4.8 meters flexible distance just can be arranged between laser bodies and the output terminal like this.The laser bodies volume ratio is bigger, and inconvenience is moved, and the laser output volume is little.After adopting the spirality gain fibre to connect, do not need to add under the extra non-gain fibre situation, laser output just can move and export the good laser of good light beam flexibly.
In addition, can form the multimode optical fiber amplification system based on multimode fiber amplifier of the present invention, described multimode optical fiber amplification system comprises: LASER Light Source and above-mentioned any multimode fiber amplifier.Wherein, described LASER Light Source can be continuous wave light source, also can be the pulsating wave light source; Described multimode fiber amplifier is used to receive described LASER Light Source, second order mode or the above light of second order mode in the laser that the multimode optical fiber energy filtering of the three-dimensional spiral curve shape that described multimode fiber amplifier comprises is amplified, and output basic mode light.
The foregoing description just lists expressivity principle of the present invention and effect is described, but not is used to limit the present invention.Any personnel that are familiar with this technology all can make amendment to the foregoing description under spirit of the present invention and scope.Therefore, the scope of the present invention should be listed as claims.
Claims (15)
1. multimode fiber amplifier is characterized in that comprising:
Be looped around a body surface and encompass the multimode optical fiber of three-dimensional spiral curve shape with helical pitch and torque.
2. multimode fiber amplifier as claimed in claim 1 is characterized in that: the helical pitch of the multimode optical fiber of described three-dimensional spiral curve shape is non-0 constant.
3. multimode fiber amplifier as claimed in claim 1 is characterized in that: the helical pitch of the multimode optical fiber of described three-dimensional spiral curve shape is a variable.
4. as each described multimode fiber amplifier in the claim 1 to 3, it is characterized in that: the spiral curve radius of the multimode optical fiber of described three-dimensional spiral curve shape is a constant.
5. as each described multimode fiber amplifier in the claim 1 to 3, it is characterized in that: the spiral curve radius of the multimode optical fiber of described three-dimensional spiral curve shape is a variable.
6. multimode fiber amplifier as claimed in claim 1 is characterized in that: described multimode optical fiber is the double clad structure.
7. multimode fiber amplifier as claimed in claim 6 is characterized in that: described multimode optical fiber is rare-earth-ion-doped double clad structure.
8. multimode fiber amplifier as claimed in claim 6 is characterized in that: the core diameter scope of described multimode optical fiber is 4 microns to 200 microns.
9. multimode fiber amplifier as claimed in claim 1 is characterized in that: around after the spirochetal length range of multimode optical fiber be 30cm to 5000cm.
10. multimode fiber amplifier as claimed in claim 1 is characterized in that: described object is cylindricality.
11. multimode fiber amplifier as claimed in claim 1 is characterized in that: described multimode fiber amplifier is the profile pump fiber amplifier.
12. multimode fiber amplifier as claimed in claim 1 is characterized in that: described multimode fiber amplifier is the end pumping fiber amplifier.
13. a multimode optical fiber amplification system is characterized in that comprising:
LASER Light Source;
Each described multimode fiber amplifier in the claim 1 to 12; be used to receive described laser signal light; the light that second order mode in the laser that the multimode optical fiber filtering of the three-dimensional spiral curve shape that described multimode fiber amplifier comprises is amplified or second order mode are above, and output basic mode light.
14. multimode optical fiber amplification system as claimed in claim 13 is characterized in that: described LASER Light Source is a continuous wave light source.
15. multimode optical fiber amplification system as claimed in claim 13 is characterized in that: described LASER Light Source is the pulsating wave light source.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110081817.2A CN102147551B (en) | 2011-04-01 | 2011-04-01 | Multimode optical fibre amplifier and multimode optical fibre amplifying system |
| PCT/CN2012/073169 WO2012130135A1 (en) | 2011-04-01 | 2012-03-28 | Multimode optical fiber amplifier and multimode optical fiber amplification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110081817.2A CN102147551B (en) | 2011-04-01 | 2011-04-01 | Multimode optical fibre amplifier and multimode optical fibre amplifying system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102147551A true CN102147551A (en) | 2011-08-10 |
| CN102147551B CN102147551B (en) | 2014-08-13 |
Family
ID=44421894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110081817.2A Active CN102147551B (en) | 2011-04-01 | 2011-04-01 | Multimode optical fibre amplifier and multimode optical fibre amplifying system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102147551B (en) |
| WO (1) | WO2012130135A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012130135A1 (en) * | 2011-04-01 | 2012-10-04 | 国神光电科技（上海）有限公司 | Multimode optical fiber amplifier and multimode optical fiber amplification system |
| CN105337147A (en) * | 2015-11-30 | 2016-02-17 | 深圳市创鑫激光股份有限公司 | Optical fiber laser |
| CN114167548A (en) * | 2022-02-14 | 2022-03-11 | 武汉锐科光纤激光技术股份有限公司 | Optical fiber amplifying device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6496301B1 (en) * | 2000-03-10 | 2002-12-17 | The United States Of America As Represented By The Secretary Of The Navy | Helical fiber amplifier |
| CN1424793A (en) * | 2003-01-10 | 2003-06-18 | 中国科学院上海光学精密机械研究所 | Cylindrical-arranged pluse double-clad optical fibre amplifiers |
| US6724528B2 (en) * | 2001-02-27 | 2004-04-20 | The United States Of America As Represented By The Secretary Of The Navy | Polarization-maintaining optical fiber amplifier employing externally applied stress-induced birefringence |
| CN101052907A (en) * | 2004-07-14 | 2007-10-10 | 密执安州立大学董事会 | Composite waveguide |
| WO2009040465A2 (en) * | 2007-09-28 | 2009-04-02 | Corelase Oy | An optical amplifier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147551B (en) * | 2011-04-01 | 2014-08-13 | 国神光电科技（上海）有限公司 | Multimode optical fibre amplifier and multimode optical fibre amplifying system |
-
2011
- 2011-04-01 CN CN201110081817.2A patent/CN102147551B/en active Active
-
2012
- 2012-03-28 WO PCT/CN2012/073169 patent/WO2012130135A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6496301B1 (en) * | 2000-03-10 | 2002-12-17 | The United States Of America As Represented By The Secretary Of The Navy | Helical fiber amplifier |
| US6724528B2 (en) * | 2001-02-27 | 2004-04-20 | The United States Of America As Represented By The Secretary Of The Navy | Polarization-maintaining optical fiber amplifier employing externally applied stress-induced birefringence |
| CN1424793A (en) * | 2003-01-10 | 2003-06-18 | 中国科学院上海光学精密机械研究所 | Cylindrical-arranged pluse double-clad optical fibre amplifiers |
| CN101052907A (en) * | 2004-07-14 | 2007-10-10 | 密执安州立大学董事会 | Composite waveguide |
| WO2009040465A2 (en) * | 2007-09-28 | 2009-04-02 | Corelase Oy | An optical amplifier |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012130135A1 (en) * | 2011-04-01 | 2012-10-04 | 国神光电科技（上海）有限公司 | Multimode optical fiber amplifier and multimode optical fiber amplification system |
| CN105337147A (en) * | 2015-11-30 | 2016-02-17 | 深圳市创鑫激光股份有限公司 | Optical fiber laser |
| CN105337147B (en) * | 2015-11-30 | 2016-11-16 | 深圳市创鑫激光股份有限公司 | A kind of optical fiber laser |
| US9692200B2 (en) | 2015-11-30 | 2017-06-27 | Maxphotonics Corporation | Fiber laser |
| CN114167548A (en) * | 2022-02-14 | 2022-03-11 | 武汉锐科光纤激光技术股份有限公司 | Optical fiber amplifying device |
| CN114167548B (en) * | 2022-02-14 | 2022-06-14 | 武汉锐科光纤激光技术股份有限公司 | Optical fiber amplifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012130135A1 (en) | 2012-10-04 |
| CN102147551B (en) | 2014-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102439805B (en) | The filter fiber and manufacturing technology thereof that use in application is launched at raman laser | |
| AU642698B2 (en) | Optical amplifier having a single-mode curved active fibre | |
| JP5238509B2 (en) | Photonic bandgap fiber | |
| CN101288211A (en) | Optical fibre laser | |
| JP2009032910A (en) | Optical fiber for optical fiber laser, method of manufacturing the same and optical fiber laser | |
| CN102208739A (en) | High impulse energy cladding pumped ultrafast fiber laser | |
| CN102292883A (en) | Two-stage brightness converter | |
| CN103531994A (en) | Same-bandwidth pumping single-frequency optical fiber laser using erbium-doped quartz optical fiber as gain medium | |
| CN103414102A (en) | High-power picosecond optical fiber laser system based on different-doping-concentration gain optical fibers | |
| CN212810845U (en) | High power fiber laser amplifier system | |
| CN103915750A (en) | Optical-fiber laser device | |
| CN105009387B (en) | Photon band-gap optical fiber and the fiber laser device using photon band-gap optical fiber | |
| CN104104000A (en) | Multi-cladding raman optical fiber amplifier | |
| CN102147551B (en) | Multimode optical fibre amplifier and multimode optical fibre amplifying system | |
| JP2013522928A (en) | High power neodymium fiber laser and amplifier | |
| CN101620295A (en) | Large mode area multi-core fiber | |
| CN101122654A (en) | Large mode field multiple-core optical fiber | |
| CN100581010C (en) | Single mode output laser for spiral coupling active doping optical fibre stick | |
| CN101276988A (en) | Ultra lightness single-mode laser for monomode active optical fiber coupling with multimodule active optical fiber | |
| CN201107425Y (en) | Strong coupling multi-core optical fiber | |
| CN201083847Y (en) | Refractivity reverse guiding multi- core optical fiber | |
| CN102801090B (en) | Long-pulse fiber laser | |
| CN100451699C (en) | Refractive index inverse-guiding multi-core optical fiber | |
| CN100589295C (en) | Seed laser injection type single mode laser of active optical fiber rod | |
| CN203406497U (en) | Large mode field area high power fiber laser apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |