CN105659926B - 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser - Google Patents
1083nm wave band narrow line width regulatable polarization-maintaining fiber laserInfo
- Publication number
- CN105659926B CN105659926B CN201318000074.1A CN201318000074A CN105659926B CN 105659926 B CN105659926 B CN 105659926B CN 201318000074 A CN201318000074 A CN 201318000074A CN 105659926 B CN105659926 B CN 105659926B
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- fiber
- tail optical
- division multiplexer
- output
- 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.)
- Active
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 108
- 239000003365 glass fiber Substances 0.000 claims abstract description 111
- 238000005086 pumping Methods 0.000 claims abstract description 14
- 239000004065 semiconductor Substances 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 21
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 238000002310 reflectometry Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 230000003287 optical Effects 0.000 description 6
- 241000931526 Acer campestre Species 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- -1 rare-earth ions Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 210000000538 Tail Anatomy 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000644 propagated Effects 0.000 description 1
- 230000001902 propagating Effects 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002269 spontaneous Effects 0.000 description 1
Abstract
The invention belongs to fiber laser technology field, disclose a kind of 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser, comprise pumping source (1), first wave division multiplexer (2), gain fibre (3), the polarizer (6), fiber grating (7), fiber grating stretching frame (8), photo-coupler (9), absorb optical fiber (10), Second Wave division multiplexer (11) and optoisolator (12). The wavelength semiconductor laser that is 980nm centered by pumping source (1); First wave division multiplexer (2) is 980nm/1083nm wavelength division multiplexer with Second Wave division multiplexer (11); The centre wavelength of fiber grating (7) is 1083nm; Coupler (9) is 50/50 coupler. Adopt the present invention can realize 1083nm wave band narrow linewidth, tunable, protect inclined to one side, stable Laser output.<pb pnum="1" />
Description
Technical field
The present invention relates to fiber laser technology field, relate in particular to a kind of 1083nm wave band narrow line width regulatable and protect polarisationFibre laser.
Background technology
General optical fiber laser operation principle is: under the effect of pump light, and the energy level population of gain media produces anti-Turn, flashlight through constantly feedback and amplification, finally forms laser generation Output of laser in resonator.
The optical fiber of doping with rare-earth ions is owing to being provided with special level structure, thus it is the most normal to can be used as optical fiber laserGain media. Pump wavelength and laser output wavelength are in fact just decided by doping with rare-earth ions in gain fibreType and level structure. By using the gain fibre of the rare earth ion of the different level structures of doping as gain media,Optical fiber laser can be realized the Laser output in 380 ~ 3900nm wave-length coverage. Usually used as optical fiber laser resonanceThe element of chamber feedback device has fiber grating, speculum etc. Feedback device is except providing positive feedback for resonator, due to thisBody has wavelength and model selection characteristic, thus also determines Output of laser wavelength.
Although common optical fiber laser can be realized the Laser output of specific wavelength, there is following shortcoming:
1, the wavelength selecting device that at present general optical fiber laser is conventional is fiber grating, and its essence is an arrowbandReflective optical system. Due to the restriction of the manufacture craft of device own, the reflection bandwidth of this type of wavelength selecting device is difficult to reachBelow 1GHz magnitude, thus the 1MHz magnitude even more Laser output of narrow linewidth cannot be realized, thus cannot be applicable toLight and atomic interaction is utilized to carry out the research field of accurate measurement.
2, because the centre wavelength of the wavelength selecting device of general optical fiber laser itself is determined, not correspondingTuning mechanism, cannot directly change the Output of laser wavelength of optical fiber laser, thus the essence of optical maser wavelength directly cannot be realizedClose tuning.
3, general optical fiber laser is in performances such as polarization property, single longitudinal mode characteristic and the power stabilities of Output of laserOn outstanding, be unfavorable for steady in a long-term use.
Summary of the invention
The technical problem to be solved in the present invention is: provide one can export 1083nm wave band, narrow linewidth, tunable,Protect the optical fiber laser of extreme light.
For solving the problems of the technologies described above: the present invention proposes a kind of 1083nm wave band narrow line width regulatable polarization maintaining optical fibre laserDevice, comprise pumping source, first wave division multiplexer, gain fibre, the polarizer, fiber grating, fiber grating stretching frame,Photo-coupler, absorption optical fiber, Second Wave division multiplexer and optoisolator;
The output tail optical fiber of pumping source is connected with the 980nm input tail optical fiber of first wave division multiplexer, first wave division multiplexer1083nm input tail optical fiber be connected with the input tail optical fiber of photo-coupler, two output tail optical fibers of photo-coupler respectively withThe two ends that absorb optical fiber are connected; The output tail optical fiber of first wave division multiplexer is connected with one end of gain fibre, gain fibreThe other end be connected with the input tail optical fiber of the polarizer, the output tail optical fiber of the polarizer and the input tail optical fiber phase of fiber gratingConnect, the output tail optical fiber of fiber grating is connected with the input tail optical fiber of Second Wave division multiplexer, Second Wave division multiplexer1083nm output tail optical fiber is connected with the input tail optical fiber of isolator, and laser exports from the output of isolator; Fiber gratingBe fixed on fiber grating stretching frame;
The wavelength semiconductor laser that is 980nm centered by described pumping is former;
Described first wave division multiplexer and Second Wave division multiplexer are 980nm/1083nm wavelength division multiplexer;
The centre wavelength of described fiber grating is 1083nm;
Described photo-coupler is 50/50 photo-coupler.
Further, the first Faraday rotator, the second Faraday rotator is also comprised; Described the first Faraday rotatorInput is connected with gain fibre, and the output tail optical fiber of the first Faraday rotator is connected with the input tail optical fiber of the polarizer;The input tail optical fiber of described the second Faraday rotator is connected with the 1083nm input tail optical fiber of first wave division multiplexer, described inThe output tail optical fiber of the second Faraday rotator is connected with the input tail optical fiber of photo-coupler;
Described the first Faraday rotator and the second Faraday rotator are 45 ° of Faraday rotators.
Further, the connection between each device is all that welding is connected.
Further, described gain fibre adopts the inclined to one side Yb dosed optical fiber of guarantor of length 40cm, and described absorption optical fiber adopts length to beThe inclined to one side Yb dosed optical fiber of guarantor of 16m.
Further, described fiber grating is the optical fiber that centre wavelength is 1083nm, bandwidth are 0.3nm, reflectivity are 90%Grating.
Further, described fiber grating stretching frame comprises casing, temperature control equipment, piezoelectric ceramics, U-shaped support,One aperture, second orifice; Temperature control equipment, piezoelectric ceramics, U-shaped are placed in casing, and temperature control equipment is solidDue to casing inner bottom part, U-shaped support is fixed on temperature control equipment, and piezoelectric ceramics is cylinder, and piezoelectric ceramics is fixedIn U-shaped metallic support bottom, and be fixedly connected with U-shaped support both sides, the axis of piezoelectric ceramics is parallel with bottom half;The first aperture is opened respectively the casing two sides vertical in the axis with piezoelectric ceramics with second orifice.
Further, described fiber grating adhesion is fixed on the U-shaped support in fiber grating stretching frame, two of fiber gratingEnd tail optical fiber passes the first aperture from the casing both sides of fiber grating stretching frame and second orifice respectively.
The present invention has following beneficial effect:
1. due to the parts that adopt in the present invention: the tail optical fiber of gain fibre, absorption optical fiber, other optical fibre devices and deviceBe protect inclined to one side, and mutually between be connected to and protect inclined to one side welding, under the effect of the polarizer, ensure that the guarantor of shoot laserBias.
2. because gain fibre both sides in laserresonator of the present invention add respectively 45 ° of Faraday rotators, because line is inclined to one sideLight per pass Faraday rotator shakes, and namely 45 ° of changes occur in polarization direction, jointly does at two Faraday rotatorsWith under, in resonator in opposite directions propagate light polarization direction orthogonal all the time, do not interfere with each other, thus avoid gain mediaThe harmful effect that middle effects of spatial is brought, effectively improves the stability of Output of laser.
3. in the present invention, have employed the fiber grating stretching frame that contains temperature control device, the temperature control in fiber grating stretching frameDevice processed can carry out the environment temperature residing for fiber grating tuning with control, thus utilizes the TEMP spy of fiber gratingSexually revise the reflection kernel wavelength of fiber grating, and then realize the tentatively tuning of optical maser wavelength. In fiber grating stretching framePiezoelectric ceramics produces miniature deformation and drives U-shaped support under applied voltage effect, to being fixed on the optical fiber of U-shaped supportGrid are realized and being stretched, thus utilize the reflection kernel wavelength of stress sensing characteristic changing fiber grating of fiber grating, Jin ErshiThe fine tune of existing optical maser wavelength.
4. the present invention adopts 50/50 photo-coupler and absorbs the mode of optical fiber combination and realizes laser linewidth and narrow.
Two output ports of 50/50 photo-coupler are welded together respectively with absorption optical fiber two ends tail optical fiber. Absorb optical fiber withGain fibre is for protecting inclined to one side Yb dosed optical fiber. Proceed from the light beam of incidence end to 50/50 photo-coupler, through 50/50 photo-couplerBeam splitting, two-beam ripple is propagated in opposite directions and is overlapping in absorption optical fiber, because interfering the dynamic raster that forms very narrow bandwidth, due toSaturated absorption, it is macroscopically showing the characteristic of narrowband reflection wave filter, thus optical-fiber laser live width can be realizedNarrow.
Accompanying drawing explanation
Fig. 1 is 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser structural representation of the present invention.
Fig. 2 is 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser structural representation of the present invention.
Fig. 3 is fiber grating stretching shelf structure schematic diagram in the present invention.
Fig. 4 is laser instrument output spectrum figure of the present invention.
Fig. 5 utilizes self-heterodyne method to measure the spectrogram of laser linewidth of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, is necessary to herein means out, below specific embodiment partyFormula, only for the present invention is further detailed, can not be interpreted as limiting the scope of the invention, this fieldThose of ordinary skill can be made some nonessential improvement and adjustment to the present invention according to foregoing invention content.
As shown in Figure 1,1083nm wave band narrow line width regulatable polarization-maintaining fiber laser of the present invention comprises pumping source 1, firstWavelength division multiplexer 2, gain fibre 3, the polarizer 6, fiber grating 7, fiber grating stretching frame 8, photo-coupler 9, absorptionOptical fiber 10, Second Wave division multiplexer 11 and optoisolator 12.
The output tail optical fiber of pumping source 1 is connected with the 980nm input tail optical fiber of first wave division multiplexer 2, the first wavelength-division multiplexThe 1083nm input tail optical fiber of device 2 be connected with the input tail optical fiber of photo-coupler 9, two output tails of photo-coupler 9Fibre is connected with the two ends that absorb optical fiber 10 respectively; The output tail optical fiber of first wave division multiplexer 2 and one end phase of gain fibre 3Connect, the other end of gain fibre 3 is connected with the input tail optical fiber of the polarizer 6, output tail optical fiber and the optical fiber of the polarizer 6The input tail optical fiber of grid 7 is connected, the output tail optical fiber of fiber grating 7 and the input tail optical fiber phase of Second Wave division multiplexer 11Connect, the 1083nm output tail optical fiber of Second Wave division multiplexer 11 is connected with the input tail optical fiber of isolator 12, and laser is from isolationThe output of device 12 exports; Fiber grating 7 is fixed on fiber grating stretching frame 8;
As shown in Figure 2,1083nm wave band narrow line width regulatable polarization-maintaining fiber laser of the present invention also comprises the first faradayCirculator 4, the second Faraday rotator 5; The input of described the first Faraday rotator 4 is connected with gain fibre 3,The output tail optical fiber of the first Faraday rotator 4 is connected with the input tail optical fiber of the polarizer 6; Described the second Faraday rotationThe input tail optical fiber of device 5 is connected with the 1083nm input tail optical fiber of first wave division multiplexer 2, described the second Faraday rotationThe output tail optical fiber of device 5 is connected with the input tail optical fiber of coupler 9.
The wavelength semiconductor laser that is 980nm centered by described pumping source 1, for generation of the pump light of 980nm,Realize the condition of gain fibre 3 population inversion.
Described first wave division multiplexer 2 is 980nm/1083nm wavelength division multiplexer, for by 980nm and 1083nmBeing optically coupled in same optical fiber of two kinds of wavelength.
The centre wavelength of described fiber grating 7 is 1083nm.
Described photo-coupler 9 is 50/50 coupler, for being divided into the two-beam that light intensity is identical also defeated a branch of input lightGo out.
Described the first Faraday rotator 4 and the second Faraday rotator 5 are 45 ° of Faraday rotators, for will inThe long linearly polarized light polarization direction for 1083nm of cardiac wave rotates 45 °.
The described polarizer 6 is for generation of linearly polarized light.
Described optoisolator 12, for realizing the one-way transmission of light.
Below by instantiation, the course of work of the present invention and principle are described:
1, the concrete device of selecting is as follows
The wavelength semiconductor laser that is 980nm centered by pumping source 1, first wave division multiplexer 2 is 980nm/1083nm rippleDivision multiplexer, the inclined to one side Yb dosed optical fiber of guarantor that gain fibre 3 is length 40cm, the first Faraday rotator 4 is that 45 ° of faraday are revolvedTurn device, the second Faraday rotator 5 is 45 ° of Faraday rotators, and centered by fiber grating 7, wavelength is 1083nm, bandwidthFor 0.3nm, the fiber grating that reflectivity is 90%, photo-coupler 9 is 50/50 coupler, absorbs optical fiber 10 and adopts lengthFor the guarantor inclined to one side Yb dosed optical fiber of the same type with gain fibre of 16m, Second Wave division multiplexer 11 is multiple for 980nm/1083nm wavelength-divisionUse device. As shown in Figure 3, fiber grating stretching frame 8 comprises casing 13, temperature control equipment 14, and piezoelectric ceramics 15 is U-shapedSupport 16, casing both sides have the first aperture 17, second orifice 18. Temperature control equipment 14, piezoelectric ceramics 15,U-shaped support 16 is placed in casing 13, and temperature control equipment 14 is fixed on casing 13 inner bottom part, and U-shaped support 16 is fixed on temperatureOn degree control device, piezoelectric ceramics 15 is cylinder, and piezoelectric ceramics 15 is fixed on U-shaped metallic support 16 bottom, and and UType support 16 both sides are fixedly connected with, and the axis of piezoelectric ceramics 15 is parallel with bottom half. The first aperture 17 and second orifice 18Open respectively the casing two sides vertical in the axis with piezoelectric ceramics 15.
Casing 13 is double thermal insulation material, the material selection red copper of U-shaped support 16.
Fiber grating 7 adhesion is fixed on the U-shaped support 16 in fiber grating stretching frame 8, the two ends of fiber grating 7Tail optical fiber passes the first aperture 17 from casing 13 both sides of fiber grating stretching frame 8 and second orifice 18 respectively.
2, the course of work and principle
As shown in Figure 2, the pump light that the centre wavelength that pumping source 1 sends is 980nm is injected by first wave division multiplexer 2Gain fibre 3, after pump light injects, gain fibre 3 is realized population inversion, and produces gain. Due to fiber grating 7 toolThere is reflection filter characteristic, positive feedback can be provided and realize the initial option of optical maser wavelength. Be coupled device 9 and be divided into two bundlesIncident light is incident to respectively simultaneously and absorbs optical fiber 10, and absorbing propagation in opposite directions in optical fiber 10, interferes with each other and form utmost point arrowbandWide dynamic raster is the Yb dosed optical fibers with saturated absorption owing to absorbing optical fiber 10 again, therefore 50/50 coupler 9With the reflection filter function that absorbs the combination of optical fiber 10 and have very narrow bandwidth, thus positive feedback can be provided and realize optical fiber and swashThe linewidth narrowing of light. Fiber grating 7, coupler 9, absorption optical fiber 10 and first wave division multiplexer 2 therebetween, gain lightThe common composition resonator of fibre 3, the first Faraday rotator 4, the second Faraday rotator 5 and the polarizer 6. Based on gain lightThe flashlight that fine 3 spontaneous radiation mechanism produce, in the feedback of fiber grating 7 and 50/50 photo-coupler 9 and absorption optical fiber 10With under wavelength chooses effect, in resonator, be constantly exaggerated, finally form laser.
Temperature control equipment 14 in fiber grating stretching frame 8 can to the environment temperature residing for fiber grating 7 carry out tuning withControl, thus utilize the thermometer sensor DS18B20 of fiber grating 7 to change the reflection kernel wavelength of fiber grating 7, and then realize and swashingOptical wavelength tentatively tuning. Piezoelectric ceramics 15 in fiber grating stretching frame 8 produces miniature deformation under applied voltage effectAnd drive U-shaped support 16, realize stretching to being fixed on the fiber grating 7 of U-shaped support 16, thus utilize fiber grating 7The reflection kernel wavelength of stress sensing characteristic changing fiber grating 7, and then the fine tune that realizes optical maser wavelength.
The polarizer 6 ensures that the light of transmission in resonator is linearly polarized light. Revolve at the first Faraday rotator 4 and the second faradayTurn under the acting in conjunction of device 5, the light polarization direction of propagating in opposite directions in resonator is orthogonal, thus gain fibre 3 can be avoidedIn the harmful effect that brings of effects of spatial, improve the stability of Output of laser.
Laser is by fiber grating 7 outgoing and enter Second Wave division multiplexer 11, and Second Wave division multiplexer 11 is by 980 of remnantsNm pump light exports from its 980nm output, avoids affecting the single-frequency output characteristics of laser instrument. 1083nm laser passes throughThe 1083nm output of Second Wave division multiplexer 11 enters optoisolator 12. Laser is exported by optoisolator 12. Due to light everyOnly allow light one-way transmission from device 12, therefore Output of laser can not because affecting light in the machine-processed reflect back into laser such as end face reflectionFibre laser performance.
In laser instrument of the present invention all optical fiber, fiber optic component and tail optical fiber be protect inclined to one side, connect each other by protect partially moltenWelding picks, and ensure that the polarization property of Output of laser, and reduces loss dramatically.
Experimental result is as follows:
Under room temperature (25 DEG C) condition, laser instrument Output of laser of the present invention is passed into spectroanalysis instrument, can directly surveyObtaining laser center wavelength is 1083nm, as shown in Figure 4.
By regulating attemperating unit, different operating temperature coarse adjustment is set, in conjunction with applying different voltage to piezoelectric ceramics thusStretching optical fiber fine tuning, can realize the tuning of laser. Utilize wavemeter to record, Output of laser tuning range is not less than40GHz。
Under room temperature (25 DEG C) condition, since 0 luminous power that constantly increases pumping source, and utilize power meter observation defeatedGo out laser power, start to have Laser output when pump power increases to about 60mW, along with pump power increases, exportLaser power also constantly increases, and becomes approximate linear relationship between the two. Until pump power is when increasing to about 180mW,Maximum laser output power 14.8mW can be obtained. If continue to increase pump power, because many longitudinal modes occur, defeatedGo out laser no longer stable.
The single longitudinal mode characteristic of Laser output can be utilized fabry perot interferometer (FP interferometer) scanning observation. By laserBe incident upon the FP chamber with detector, it is long that scanning voltage control interferometer constantly changes chamber, and it is known, defeated that observation sees through spectrumThe single longitudinal mode characteristic that goes out laser is good, and frequency is comparatively stable, without Mode-hopping Phenomena.
Utilize self-heterodyne beat frequency method to test the live width of Output of laser, acquired results shows that laser output linewidth is notBe greater than 10kHz, as shown in Figure 5.
Utilize the laser instrument of light power meter continuous acquisition at the Output of laser power at 1083.205nm place, measurement result showsOutput of laser power maintains about 13.6mW, and (10 minutes) are comparatively stable in a short time, and fluctuation range is less than 1%.
To sum up, through experimental verification, output center wavelength of the present invention is that 1083nm single longitudinal mode exports, tunable wave length,Tuning range is not less than 40GHz; Output of laser live width is less than 10kHz; Laser single mode, stable, guarantor's output partially; SwashOptical output power is greater than 10mW, and power output is highly stable in a short time, and fluctuation range is less than 1%.
Claims (7)
1. a 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser, is characterized in that: comprise pumping source (1),First wave division multiplexer (2), gain fibre (3), the polarizer (6), fiber grating (7), fiber grating stretching frame (8),Photo-coupler (9), absorption optical fiber (10), Second Wave division multiplexer (11) and optoisolator (12);
The output tail optical fiber of pumping source (1) is connected with the 980nm input tail optical fiber of first wave division multiplexer (2), and firstThe 1083nm input tail optical fiber of wavelength division multiplexer (2) is connected with the input tail optical fiber of photo-coupler (9), photo-coupler (9)Two output tail optical fibers respectively with absorb optical fiber (10) two ends be connected; The output of first wave division multiplexer (2)Tail optical fiber is connected with the one end of gain fibre (3), the other end of gain fibre (3) and the input tail of the polarizer (6)Fine being connected, the output tail optical fiber of the polarizer (6) is connected with the input tail optical fiber of fiber grating (7), fiber grating (7)Output tail optical fiber be connected with the input tail optical fiber of Second Wave division multiplexer (11), the 1083nm of Second Wave division multiplexer (11)Output tail optical fiber is connected with the input tail optical fiber of optoisolator (12), and laser exports from the output of optoisolator (12);Fiber grating (7) is fixed on fiber grating stretching frame (8);
The wavelength semiconductor laser that is 980nm centered by described pumping source (1);
Described first wave division multiplexer (2) is 980nm/1083nm wavelength-division multiplex with Second Wave division multiplexer (11)Device;
The centre wavelength of described fiber grating (7) is 1083nm;
Described photo-coupler (9) is 50/50 photo-coupler.
2. 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser according to claim 1, is characterized in that:Also comprise the first Faraday rotator (4), the second Faraday rotator (5); Described the first Faraday rotator (4)Input be connected with gain fibre (3), output tail optical fiber and the polarizer (6) of the first Faraday rotator (4)Input tail optical fiber be connected; The input tail optical fiber of described the second Faraday rotator (5) and first wave division multiplexer (2)1083nm input tail optical fiber is connected, the output tail optical fiber of described the second Faraday rotator (5) and photo-coupler (9)Input tail optical fiber is connected;
Described the first Faraday rotator (4) is 45 ° of Faraday rotators with the second Faraday rotator (5).
3. 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser according to claim 1 and 2, its featureBe: the connection between each device is all that welding is connected.
4. 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser according to claim 1 and 2, its featureBe: described gain fibre (3) adopts the inclined to one side Yb dosed optical fiber of guarantor of length 40cm, described absorption optical fiber (10) adoptsLength is the inclined to one side Yb dosed optical fiber of the guarantor of 16m.
5. 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser according to claim 1 and 2, its featureBe: described fiber grating (7) is the optical fiber that centre wavelength is 1083nm, bandwidth are 0.3nm, reflectivity are 90%Grating.
6. 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser according to claim 1 and 2, is characterized in that:Described fiber grating stretching frame (8) comprises casing (13), temperature control equipment (14), piezoelectric ceramics (15), UType support (16), the first aperture (17), second orifice (18); Temperature control equipment (14), piezoelectric ceramics (15),U-shaped support (16) is placed in casing (13), and temperature control equipment (14) is fixed on casing (13) inner bottom part, UIt is upper that type support (16) is fixed on temperature control equipment (14), and piezoelectric ceramics (15) is cylinder, piezoelectric ceramics (15)Be fixed on U-shaped support (16) bottom, and be fixedly connected with the axle of piezoelectric ceramics (15) with U-shaped support (16) both sidesTo parallel with bottom half; The first aperture (17) is opened respectively at the axle with piezoelectric ceramics (15) with second orifice (18)To vertical casing two sides.
7. 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser according to claim 1, is characterized in that:It is upper that described fiber grating (7) adhesion is fixed on the interior U-shaped support (16) of fiber grating stretching frame (8), fiber grating(7) two ends tail optical fiber is the first aperture (17) from casing (13) both sides of fiber grating stretching frame (8) and the respectivelyTwo apertures pass in (18).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105659926B true CN105659926B (en) | 2015-01-14 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602394A (en) * | 2017-01-19 | 2017-04-26 | 吉林大学 | Resonant cavity system formed by dynamic fiber grating and fiber bragg grating |
| CN108711727A (en) * | 2018-06-04 | 2018-10-26 | 山东省科学院激光研究所 | A kind of polarization-maintaining distributed feedback optical fiber laser and manufacturing method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602394A (en) * | 2017-01-19 | 2017-04-26 | 吉林大学 | Resonant cavity system formed by dynamic fiber grating and fiber bragg grating |
| CN106602394B (en) * | 2017-01-19 | 2019-02-12 | 吉林大学 | A kind of resonance cavity system of Dynamic Optical Fiber grating and optical fiber Bragg raster composition |
| CN108711727A (en) * | 2018-06-04 | 2018-10-26 | 山东省科学院激光研究所 | A kind of polarization-maintaining distributed feedback optical fiber laser and manufacturing method |
| CN108711727B (en) * | 2018-06-04 | 2020-06-09 | 山东省科学院激光研究所 | Polarization maintaining distributed feedback fiber laser and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108963737B (en) | Multi-dimensional multiplexing soliton fiber laser | |
| Liu et al. | Switchable and tunable multiwavelength erbium-doped fiber laser with fiber Bragg gratings and photonic crystal fiber | |
| EP2246718B1 (en) | Optical fiber coupling device | |
| Feng et al. | Switchable 0.612-nm-spaced dual-wavelength fiber laser with sub-kHz linewidth, ultra-high OSNR, ultra-low RIN, and orthogonal polarization outputs | |
| JP4913396B2 (en) | Ultra-short pulse light source | |
| Zhou et al. | Stable all-fiber dual-wavelength thulium-doped fiber laser and its coherent beam combination | |
| CN103247934A (en) | Broadband tunable multi-wavelength Brillouin fiber laser | |
| KR101394720B1 (en) | Method and apparatus to generate high power femtosecond light pulses by combining nonlinear polarization rotation and saturable absortion | |
| Qin et al. | Multi-wavelength thulium-doped fiber laser via a polarization-maintaining Sagnac loop mirror with a theta-shaped configuration | |
| Peng et al. | Tunable and switchable multi-wavelength actively Q-switched fiber laser based on electro-optic modulator and an improved Sagnac filter | |
| CN100423385C (en) | A linear resonant cavity wide narrow line tunable optical fiber laser | |
| Yang et al. | Wavelength-tunable erbium-doped fiber ring laser employing an acousto-optic filter | |
| Li et al. | Switchable multi-wavelength thulium-doped fiber laser using a cascaded or two-segment Sagnac loop filter | |
| CN102610987A (en) | Switchable multi-wavelength erbium-doped optical fiber laser based on optical fiber Mach-Zehnder interferometer | |
| Liu et al. | An EDFA-gain equalizer based on a Sagnac loop with an unpumped erbium-doped fiber | |
| CN105659926B (en) | 1083nm wave band narrow line width regulatable polarization-maintaining fiber laser | |
| Lu et al. | A tunable multiwavelength fiber ring laser for measuring polarization-mode dispersion in optical fibers | |
| Yang et al. | 2-μm switchable, tunable and power-controllable dual-wavelength fiber laser based on parallel cavities using 3× 3 coupler | |
| Moghaddam et al. | Comparisons of multi-wavelength oscillations using Sagnac loop mirror and Mach-Zehnder interferometer for ytterbium doped fiber lasers | |
| CN104078827A (en) | Multi-wavelength erbium-doped fiber laser with multiple tuning functions | |
| CN103208725A (en) | Two-way reciprocal single longitudinal mode fiber ring cavity laser | |
| KR20140049994A (en) | Method and apparatus to generate high power femtosecond light pulses by combining nonlinear polarization rotation and saturable absortion | |
| TWI398059B (en) | Single-longitudinal-mode linear cavity fiber laser apparatus | |
| Wang et al. | A tunable and switchable single-longitudinal-mode dual-wavelength fiber laser for microwave generation | |
| Tang et al. | Multi-wavelength erbium-doped fiber laser based on four-wave mixing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted |