CN105591276A - 589nm and 1319nm dual-wavelength fiber output laser for wind-velocity indicator - Google Patents

Abstract

The invention discloses a 589nm and 1319nm dual-wavelength fiber output laser for a wind-velocity indicator. A 589nm four-wave mixing period polarized lithium niobate laser resonator is arranged, a 1319nm beam splitting fiber loop is arranged at the tail segment of a 1319nm laser output fiber, one path of beam-split 1319nm laser is output, 589nm signal light, 1319nm idle-frequency light, 1064nm pump light I and 660nm pump light II go into the 589nm four-wave mixing period polarized lithium niobate laser resonator, a four-wave mixing effect takes place, 589nm signal light is generated for output, and finally, 589nm and 1319nm dual-wavelength fiber laser is output.

Description

One is 589nm, 1319nm dual-wavelength optical-fiber output laser for anemobiagraph

Technical field: laser instrument and applied technical field.

Technical background:

589nm, 1319nm dual-wavelength laser are to divide for spectral detection, lasing light emitter, materialization for anemobiagraphThe laser of application such as analyse, it can be used as the analysis inspection of anemobiagraph optical fiber transmission 589nm, 1319nm dual wavelength sensorThe using light sources such as survey, it is also for the laser such as optical communication and optoelectronic areas for anemobiagraph; Optical fiber laser is doneFor the representative of third generation laser technology, there is having mercy on property, the glass material of glass optical fiber low cost of manufacture and optical fiberMaterial has an extremely low volume Area Ratio, rapid heat dissipation, loss low with conversion efficiency compared with advantages of higher, range of applicationConstantly expand.

Summary of the invention:

One is 589nm, 1319nm dual-wavelength optical-fiber output laser for anemobiagraph, 589nm tetra-ripples is set mixedPeriodically poled lithium niobate laserresonator frequently, arranges 1319nm at 1319nm Laser output optical fiber rear and dividesBundle fiber turns, beam splitting one road 1319nm Laser output, flashlight 589nm, ideler frequency light 1319nm, pump lightI1064nm and pump light II660nm enter 589nm four-wave mixing periodically poled lithium niobate laserresonator,There is four-wave mixing effect, produce flashlight 589nm output, finally export 589nm, 1319nm dual wavelengthOptical-fiber laser output.

Scheme one, 589nmmmm tetra-long wavelength fiber laser structures.

Signalization light 589nm, ideler frequency light 1319nm, pump light I1064nm and pump light II660nm occurThe structure of the periodically poled lithium niobate laserresonator of four-wave mixing, sets gradually three-wavelength from its input defeatedEnter mirror, 589nm four-wave mixing periodically poled lithium niobate laser crystal, 589nm outgoing mirror, 589nm and focus on couplingClose outgoing mirror, 589nm focuses on output coupling mirror coupling access 589nm output optical fibre.

Scheme two, respectively 1319nm, 1064nm, 660nm laser beam splitter fiber turns be set

At 1319nm Laser output optical fiber rear, 1319nm splitting optical fiber circle is set, beam splitting one road 1319nm laserOutput.

Scheme three, 1319nm periodically poled lithium niobate laser parameter vibration resonator is set

1319nm periodically poled lithium niobate laser parameter vibration resonator is set, from its input, sets gradually:3-stage optical fiber input mirror, 1064nm parametric oscillation basic frequency laser crystal, parametric oscillation input mirror, 1319nm weekPhase poled lithium niobate laser crystal, 1319nm outgoing mirror, focus on output coupling mirror with the 1319nm of output,Form thus 1319nm periodically poled lithium niobate laser parameter vibration resonator.

Scheme four, 660nm laserresonator is set

660nm laserresonator is set, from its input, sets gradually: secondary input mirror, 660nm fundamental frequencyLaser crystal, 660nm frequency doubling laser crystal, 660nm outgoing mirror 21 are coupled defeated with the 660nm focusing of outputAppearance, forms 660nm laserresonator thus.

Scheme five, 1064nm resonator is set

1064nm resonator is set, 1064nm resonator is set, from its input, set gradually: one-level is defeatedThe 1064nm that enters mirror, 1064nm laser crystal, 1064nm outgoing mirror 11 and output focuses on output coupling mirror,Form thus 1064nm resonator.

Scheme six, 3-stage optical fiber structure is set

3-stage optical fiber structure is set, and 3-stage optical fiber structure is by one-level fiber turns, secondary fiber turns and 3-stage optical fiberCircle is integrally connected and forms, and one-level fiber turns is connected on semiconductor module by 808nm pumping coupler, and halfConductor module is by semiconductor module Power supply, and above-mentioned whole optical elements are all arranged on optical rail and ray machineOn tool, on optical rail and ray machine tool, fan 3 is set.

Core content of the present invention:

One is 589nm, 1319nm dual-wavelength optical-fiber output laser for anemobiagraph, at 1319nm Laser outputOptical fiber rear arranges 1319nm splitting optical fiber circle, beam splitting one road 1319nm Laser output, signalization light 589nm,There is the period polarized niobium of four-wave mixing in ideler frequency light 1319nm, pump light I1064nm and pump light II660nm, there is four-wave mixing effect and generate the output of flashlight 589nm optical-fiber laser in the structure of acid lithium laserresonator,Form 589nm, 1319nm dual-wavelength optical-fiber output laser structure.

Brief description of the drawings:

Accompanying drawing is the structure chart of this patent, and accompanying drawing is wherein: 1, optical rail and ray machine tool, 2, semiconductor modulePiece, 3, fan, 4,808nm pumping coupler, 5, semiconductor module block power supply, 6, one-level fiber turns, 7,One-level fiber-optic output, 8, one-level fiber coupler, 9, one-level input mirror, 10,1064nm laser crystal,11,1064nm outgoing mirror, 12, focus on output coupling mirror, 13,1064nm output optical fibre, 14,1064nmResonator, 15, secondary fiber turns, 16, secondary fiber-optic output, 17, secondary fiber coupler, 18,660nm focuses on output coupling mirror, 19,660nm output optical fibre, 20,660nm frequency doubling laser crystal, 21,660nm outgoing mirror, 22,660nm basic frequency laser crystal, 23, secondary input mirror, 24,660nm laser is humorousThe chamber that shakes, 25,3-stage optical fiber circle, 26,1319nm output optical fibre, 27,1319nm focuses on output coupling mirror,28,1319nm outgoing mirror, 29,1319nm periodically poled lithium niobate laser crystal, 30, parametric oscillation inputMirror, 31,1064nm parametric oscillation basic frequency laser crystal, 32,3-stage optical fiber input mirror, 33, three-wavelength ginsengAmount coupler, 34,3-stage optical fiber coupler, 35, the vibration of 1319nm periodically poled lithium niobate laser parameter is humorousThe chamber that shakes, 36,3-stage optical fiber output, 37, three-wavelength parameter coupling transmission optical fiber, 38,589nm tetra-ripples are mixedFrequently periodically poled lithium niobate laserresonator, 39, three-wavelength input mirror, 40, the 589nm four-wave mixing cycle utmost pointChange lithium niobate laser crystal, 41,589nm outgoing mirror, 42,589nm focuses on output coupling mirror, 43,589nmOutput optical fibre, 44,589nm Laser output, 45,1319nm output optical fibre, 46,1319nm splitting optical fiberCircle, 47,3-stage optical fiber structure.

Detailed description of the invention:

589nm four-wave mixing periodically poled lithium niobate laserresonator 38 is set, at 1319nm Laser output lightFine 26 rears arrange 1319nm splitting optical fiber circle 46, beam splitting one road 1319nm Laser output, signalization lightThere is the cycle of four-wave mixing in 589nm, ideler frequency light 1319nm, pump light I1064nm and pump light II660nmThe structure of poled lithium niobate laserresonator 38, at 589nm four-wave mixing periodically poled lithium niobate laserresonator38 outputs arrange 589nm and focus on output coupling mirror 42 coupling access 589nm output optical fibres 43, swash at 1319nmLight output fiber 26 rears arrange 1319nm splitting optical fiber circle 46, beam splitting one road 1319nm Laser output, ideler frequencyLight 1319nm, pump light I1064nm and pump light II660nm with derive from three-wavelength parameter coupled transfer lightFine 37, three-wavelength parameter coupling transmission optical fiber 37 three-wavelength parameter coupler 33 is set above, by 1064nmOutput optical fibre 13,660nm output optical fibre 19 and the 26 coupling access three-wavelength parameter couplings of 1319nm output optical fibreDevice 33, arranges 1319nm periodically poled lithium niobate laser parameter vibration resonator 35, the period polarized niobium of 1319nmAcid lithium laser parameter vibration resonator 35 focuses on output coupling mirror 27 by the 1319nm of its output and is linked intoIn 1319nm output optical fibre 26, the input of 1319nm periodically poled lithium niobate laser parameter vibration resonator 35Be connected on 3-stage optical fiber output 36 by 3-stage optical fiber coupler 34,3-stage optical fiber output 36 is by three grades of lightThe 3-stage optical fiber circle 25 of fine structure 47 is drawn; The periodically poled lithium niobate of signalization light 589nm four-wave mixing swashsThe structure of optical cavity 38, sets gradually three-wavelength input mirror 39,589nm four-wave mixing cycle from its inputPoled lithium niobate laser crystal 40,589nm outgoing mirror 41,589nm focus on output coupling mirror 42, and 589nm is poly-Burnt output coupling mirror 42 coupling access 589nm output optical fibres 43, arrange 660nm laserresonator 24, and 660nm swashsOptical cavity 24 focuses on output coupling mirror 18 by the 660nm of its output and is linked in 660nm output optical fibre 19,660nm laserresonator 24 is connected on secondary fiber-optic output 16 by the secondary fiber coupler 17 of its inputUpper, secondary fiber-optic output 16 is drawn from the secondary fiber turns 15 of 3-stage optical fiber structure 47; 1064nm is setResonator 14, the output of 1064nm resonator 14 focuses on output coupling mirror 12 by 1064nm and is linked intoIn 1064nm output optical fibre 13,1064nm resonator 14 is connected on by the one-level fiber coupler 8 of its inputOn one-level fiber-optic output 7, one-level fiber-optic output 7 is drawn by the one-level fiber turns 6 of 3-stage optical fiber structure 47;1319nm periodically poled lithium niobate laser parameter vibration resonator 35 is set, from its input, sets gradually:3-stage optical fiber input mirror 32,1064nm parametric oscillation basic frequency laser crystal 31, parametric oscillation input mirror 30,The 1319nm of 1319nm periodically poled lithium niobate laser crystal 29,1319nm outgoing mirror 28, output focuses on couplingClose outgoing mirror 27, form thus 1319nm periodically poled lithium niobate laser parameter vibration resonator 35; Arrange660nm laserresonator 24 sets gradually from its input: secondary input mirror 23,660nm basic frequency laserCrystal 22,660nm outgoing mirror 21, focus on output coupling mirror 18 with the 660nm of output, form thus 660nmLaserresonator 24; 1064nm resonator 14 is set, from its input, sets gradually: one-level input mirror 9,1064nm laser crystal 10,1064nm outgoing mirror 11 focus on output coupling mirror 12 with the 1064nm of output, byThis forms 1064nm resonator 14, and 3-stage optical fiber structure 47 is set, 3-stage optical fiber structure 47 by one-level fiber turns 6,Secondary fiber turns 15 is integrally connected and forms with 3-stage optical fiber circle 25, and one-level fiber turns 6 is coupled by 808nm pumpingDevice 4 is connected on semiconductor module 2, and semiconductor module 2 is powered by semiconductor module block power supply 5, above-mentioned whole lightLearn element and be all arranged on optical rail and ray machine tool 1, on optical rail and ray machine tool 1, fan 3 is set, totalBody forms 589nm, 1319nm dual-wavelength optical-fiber output laser structure.

The course of work:

Semiconductor module block power supply 5 is powered and is powered to semiconductor module 2, and semiconductor module 2 is launched 808nm and swashedLight is coupled into one-level fiber turns 6 through 808nm pumping coupler 4, thereby enters 3-stage optical fiber structure 47Secondary fiber turns 15 and 3-stage optical fiber circle 25,808nm laser is gained in 3-stage optical fiber structure 47,From drawing 3-stage optical fiber output 36 by 3-stage optical fiber circle 25, input 808nm laser enters the 1319nm cyclePoled lithium niobate laser parameter vibration resonator 35, humorous through the vibration of 1319nm periodically poled lithium niobate laser parameterThe 1064nm laser that the 1064nm parametric oscillation basic frequency laser crystal 31 in chamber 35 of shaking generates goes pump optical ginsengAmount vibration generates 1319nm laser, focuses on output coupling mirror 27 be coupled to 1319nm output light through 1319nmIn fine 26, input 1319nm laser in three-wavelength parameter coupler 33 by it; From by secondary fiber turns 15Draw secondary fiber-optic output 16, input 808nm laser enters 660nm laserresonator 24, through 660nmThe 660nm basic frequency laser crystal 22 of laserresonator 24 generates 660nm laser, focuses on coupling through 660nmOutgoing mirror 18 is coupled in 660nm output optical fibre 19, inputs 660nm laser to three-wavelength parameter coupling by itClose in device 33; From drawing one-level fiber-optic output 7 by one-level fiber turns 6, input 808nm laser enters1064nm resonator 14,1064nm resonator 14 generates 1064nm basic frequency laser, focuses on coupling through 1064nmClose outgoing mirror 12 and be coupled in 1064nm output optical fibre 13, joined to three-wavelength by its input 1064nm laserIn amount coupler 33; Thereby 1319nm laser, 1064nm laser and 660nm laser are through three-wavelength parameterCoupler 33 is coupled into 589nm four-wave mixing periodically poled lithium niobate laserresonator 38, flashlight 589nm,There is four-wave mixing effect in ideler frequency light 1319nm, pump light I1064nm and pump light II660nm, makes signalLight 589nm occurs, gain, and flashlight 589nm focuses on output coupling mirror 42 and 589nm output through 589nmOptical fiber 43 is exported 589nm Laser output 44, at 1319nm Laser output optical fiber 26 rears, 1319nm is setSplitting optical fiber circle 46, beam splitting one road 1319nm Laser output.

Claims (1)

1. 589nm, a 1319nm dual-wavelength optical-fiber output laser for anemobiagraph, is characterized by, at 1319nmLaser output optical fiber rear arranges 1319nm splitting optical fiber circle, and beam splitting one road 1319nm Laser output, arranges letterThere is four-wave mixing in number light 589nm, ideler frequency light 1319nm, pump light I1064nm and pump light II660nm, there is four-wave mixing effect generation flashlight 589nm optical fiber and swash in the structure of periodically poled lithium niobate laserresonatorLight output, forms 589nm, 1319nm dual-wavelength optical-fiber output laser structure.