CN104577669A - Optical fiber laser for outputting lasers with wave lengths of 808nm, 1319nm, 532nm and 532nm at four ends for anemoscope - Google Patents
Optical fiber laser for outputting lasers with wave lengths of 808nm, 1319nm, 532nm and 532nm at four ends for anemoscope Download PDFInfo
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- CN104577669A CN104577669A CN201310507471.7A CN201310507471A CN104577669A CN 104577669 A CN104577669 A CN 104577669A CN 201310507471 A CN201310507471 A CN 201310507471A CN 104577669 A CN104577669 A CN 104577669A
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Abstract
The invention relates to an optical fiber laser for outputting lasers with the wave lengths of 808nm, 1319nm, 532nm and 532nm at four ends for an anemoscope. The optical fiber laser uses a multimode pumping diode module set to emit pumping light of 808nm, and the pumping light is coupled to a transmission optical fiber to be output at both ends, for a right path, a pumping right optical fiber radiates photons of 1064nm to be amplified in a right optical fiber resonant cavity, and lasers of 1064nm are output at both ends, wherein a frequency doubling light with the optical wavelength of 532nm is generated in one path through a KTP crystal, and similarly, a frequency doubling light with the optical wavelength is generated in the other path through the KTP crystal to output the laser of 532nm so as to form the lasers with double 532nm; for a left path, a pumping left optical fiber radiates photons of 1319nm to be amplified in a left optical fiber resonant cavity, the lasers of 1319nm are output at both ends, wherein the laser with the wavelength of 1319nm is output through a 1319nm output mirror in one path, and the laser of 808nm is output in the other path directly; therefore, the lasers with the wave lengths of 808nm, 1319nm, 532nm and 532nm are output at the four ends.
Description
Technical field: laser and applied technical field.
Technical background:
808nm and 1319nm and two 532nm wavelength laser, the laser applied for anemobiagraph spectral detection, lasing light emitter, instrumental analysis etc., it can be used as the using light sources such as the analyzing and testing of anemobiagraph Fibre Optical Sensor, and it is also for laser and optoelectronic areas such as anemobiagraph optical communications; Fiber laser is as the representative of third generation laser technology, and having mercy on property, the glass material with glass optical fiber low cost of manufacture and optical fiber have extremely low bulk area ratio, and rapid heat dissipation, loss are low with conversion efficiency comparatively advantages of higher, and range of application constantly expands.
Summary of the invention:
A kind of anemobiagraph four ends export 808nm and 1319nm and two 532nm long wavelength fiber laser, it launches 808nm pump light by multimode pumping diode (led) module group, be coupled to both-end in Transmission Fibers to export, right wing, pumping right optical fiber radiation 1064nm photon, amplify in right fiber resonance cavity, both-end exports 1064nm laser, and a road produces frequency doubled light wavelength 532nm through ktp crystal, equally, another road also produces frequency doubled light wavelength through ktp crystal and exports 532nm laser, forms two 532nm laser; Left, pumping left optical fiber radiation 1319nm photon, amplifies in left fiber resonance cavity, both-end exports 1319nm laser, and a road is through 1319nm outgoing mirror output wavelength 1319nm, and another road directly exports 808nm laser, thus, four ends export 808nm and 1319nm and two 532nm wavelength laser.
The present invention program one, a kind of anemobiagraph four ends export 808nm and 1319nm and two 532nm long wavelength fiber laser methods and device.
It launches 808nm pump light by diode (led) module group, and be coupled to both-end through fiber coupler and export in individual layer 808nm pump light Transmission Fibers, both-end exports individual layer 808nm Transmission Fibers and exports from its two ends, left and right.
Right wing, 808nm pump light, to be coupled in double clad Nd3+:YAG single crystal fiber between surrounding layer through fiber coupler, inner cladding adopts ellipsoidal structure, surrounding layer adopts circular configuration, pump light is roundtrip between inner cladding and surrounding layer, repeatedly be absorbed through fiber core with single-mold, fiber core with single-mold Nd3+: ion energy-absorbing generation energy level transition, radiation 1064nm photon, it vibrates and amplifies in the laserresonator be made up of left fiber-optic output and right fiber-optic output, form 1064nm laser dual-end to export, one end enters right ktp crystal, produce frequency doubled light wavelength 532nm, fiber-optic output and outgoing mirror form frequency doubling cavity, export through right outgoing mirror, 532nm laser is exported again through right 1 beam expanding lens and right 1 focus lamp, the other end enters right 2KTP crystal, produce frequency doubled light wavelength 532nm, fiber-optic output and outgoing mirror form frequency doubling cavity, export through right outgoing mirror, 532nm laser is exported again through right 2 beam expanding lenss and right 2 focus lamps.
Left, the left fiber coupler of 808nm pump light, be coupled to left double clad Nd3+:YAG single crystal fiber input, it enters between inside and outside double clad that it enters into left double clad Nd3+:YAG single crystal fiber, inner cladding adopts ellipsoidal structure, surrounding layer adopts circular configuration, pump light is roundtrip between inner cladding and surrounding layer, repeatedly be absorbed through fiber core with single-mold, fiber core with single-mold Nd3+: ion energy-absorbing generation energy level transition, radiation 1319nm photon, amplify in the resonant cavity that left double clad Nd3+:YAG single crystal fiber input and output form, 1319nm laser is exported through it, one end exports 1319nm laser, one end enters 1319nm outgoing mirror output wavelength 1319nm, fiber-optic output and outgoing mirror form frequency doubling cavity, export through left 1 outgoing mirror, 1319nm laser is exported again through left 1 beam expanding lens and left 1 focus lamp, the other end exports 808nm laser and enters left 2 beam expanding lenss, outgoing mirror, left 2 focus lamps export 808nm laser, form left 1 and export 1319nm laser, left 2 export 808nm laser.
Formed thus, left and right Lu Siduan exports 808nm and 1319nm and two 532nmmm tetra-wavelength laser.
The present invention program two, the optical fiber plan of establishment.
Pumping optical fiber: adopt both-end to export individual layer 808nm pump light Transmission Fibers, optical fiber is designed to annular, and its intermediate ends arranges coupler, and two ends export.
Right wing optical fiber, adopt double clad Nd3+:YAG single crystal fiber, the inhomogeneous broadening that the division of its glass matrix is formed causes absorption band wider, namely the crystalline phase matching range of glass optical fiber to incident pump light is wide, adopt the cladding pumping technique of doubly clad optical fiber, doubly clad optical fiber is made up of four levels: 1. fiber cores, 2. inner cladding, 3. surrounding layer, 4. protective layer, employing cladding pumping technique is as follows, one group of multimode pumping diode (led) module group is adopted to send pump light, be coupled between inner cladding and surrounding layer through fiber coupler, inner cladding adopts ellipsoidal structure, surrounding layer adopts circular configuration, pump light is roundtrip between inner cladding and surrounding layer, repeatedly be absorbed through fiber core with single-mold, fiber core with single-mold Nd3+: ion energy-absorbing generation energy level transition, radiation 1064nm photon, right fiber-optic output plating is to 1064nm wavelength light T=5% reflectivity film, the reflectivity film of fiber-optic output plating to 1064nm wavelength light T=6%, optical fiber two ends form resonant cavity, optical fiber is designed to annular, its medial end portions coupler.
Left optical fiber, identical with right wing fiber body, difference is that film plating layer is different.
The present invention program three, plated film scheme are arranged.
Pumping optical fiber: plating 808nm high-transmission rate film.
Right 1 road optical fiber: fiber-optic output: plate the reflectivity film to 1064nm wavelength light T=6%, plates 532nm wavelength light high reflection film.
Right 1 tunnel output optic acts, the anti-reflection film of plating 532nm wavelength light, plates 1064nm wavelength light high reflection film.
Right 1 road double-frequency laser ktp crystal, the anti-reflection film of two ends plating 532nm wavelength light.
Right 2 road double-frequency laser ktp crystals, the anti-reflection film of two ends plating 532nm wavelength light.
Right 2 tunnel output optic acts, plate 532nm wavelength light high reflection film, plate 1064nm wavelength light high reflection film.
Left 1 road optical fiber: fiber-optic output: plate the reflectivity film to 1319nm wavelength light T=6%, plates 1319nm wavelength light high reflection film.
Left 1 tunnel output optic acts, the anti-reflection film of plating 1319nm wavelength light.
Left 2 road fiber-optic output mirror platings are to 808nm wavelength light T=5% reflectivity film.
Left 2 tunnel output optic acts, plate 808nm wavelength light high-transmission rate film.
The present invention program four, application scheme.
Two ends, left and right Output of laser, implements acted as reference mutual, each other flashlight, each other seed light, exports simultaneously, avoids interfering.
Core content of the present invention:
1. semiconductor module is set, by semiconductor module Power supply, export 808nm wavelength pump light, semiconductor module arranges coupler, on coupler, pumping optical fiber is set, by coupler, 808nm wavelength coupling pump light is entered pumping optical fiber, arrange pumping optical fiber be annular both sides upwards in the same way bilateral export end mirror structure, i.e. pumping optical fiber bilateral output end mirror structure in the same way, arrange and form bilateral 808nm Laser output by pumping optical fiber right output end mirror and the left output end mirror of pumping optical fiber, export on end mirror at pumping optical fiber bilateral, 1064 optical fiber and 1319 optical fiber are set respectively.
Right wing, on the right output end mirror of pumping optical fiber, right coupler is set, the optical fiber of 1064nm wavelength is set on right coupler, the optical fiber of 1064nm wavelength be set to annular both sides upwards in the same way bilateral export end mirror structure, be of coupled connections by right coupler the optical fiber of the right output end mirror of pumping optical fiber and 1064nm wavelength, pump light 808nm laser enters 1064nm long wavelength fiber through left coupler, the right output end mirror and the left output end mirror that arrange the optical fiber of 1064nm wavelength are: the fiber resonance cavity that wavelength 1064nm infrared light occurs, namely form 1064nm infrared light to export, the top of the left end output end mirror of 1064nm optical fiber sets gradually: frequency multiplication 532nm laser ktp crystal, 532nm outgoing mirror, 532nm beam expanding lens expands and 532nm focus lamp, 1064nm wavelength is through frequency multiplication 532nm laser ktp crystal, frequency multiplication exports 532nm laser, expand through beam expanding lens and export 532nm laser with focus lamp, equally, the top of the right-hand member output end mirror of 1064nm optical fiber sets gradually: frequency multiplication 532nm laser ktp crystal, 532nm outgoing mirror, 532nm beam expanding lens expands and 532nm focus lamp, 1064nm wavelength is through frequency multiplication 532nm laser ktp crystal, frequency multiplication exports 532nm laser, expand through beam expanding lens and export 532nm laser with focus lamp, form two 532nm Laser output.
Left, on the right output end mirror of pumping optical fiber, left coupler is set, the optical fiber of 1319nm wavelength is set on left coupler, the optical fiber of 1319nm wavelength be set to annular both sides upwards in the same way bilateral export end mirror structure, be of coupled connections by left coupler the optical fiber of 1319nm wavelength, pump light 808nm laser enters 1319nm long wavelength fiber through left coupler, the right output end mirror and the left output end mirror that arrange the optical fiber of 1319nm wavelength are: the fiber resonance cavity that wavelength 1319nm infrared light occurs, namely 1319nm laser is formed, the left end of 1319nm optical fiber exports end mirror and is set to 1319nm outgoing mirror, its top sets gradually: 1319nm outgoing mirror, 1319nm beam expanding lens expands and 1319nm focus lamp, 1319nm wavelength exports 1319nm laser through outgoing mirror, expand through beam expanding lens and export 1319nm laser with focus lamp, the right-hand member of 1319nm optical fiber exports end mirror and is set to 808nm outgoing mirror, its top sets gradually: 808nm beam expanding lens, 808nm outgoing mirror, 808nm focus lamp.
You Zuo tetra-tunnel forms 808nm, 1319nm and two 532nm laser four wavelength laser exports, that is forms 808nm, 1319nm and two 532nm laser four long wavelength fiber laser.
2. arrange the optical fiber of 1064nm wavelength, it adopts doubly clad optical fiber, the optic fibre input end mirror of 1064nm wavelength, plating 808nm wavelength light high-transmission rate film, plating 1064nm laser high reflection film.
The optical fiber of 1319nm wavelength is set, the left output end mirror of optical fiber of 1319nm wavelength, plating 1319nm wavelength laser 7% transmissivity film; The optical fiber right output end mirror plating 808nm laser 7% transmissivity film of 1319nm wavelength plates 1319nm high reflection film simultaneously.
1319nm outgoing mirror, plating 1319nm high-transmission rate film.
Frequency multiplication 532nm laser ktp crystal, both sides plating 532nm high-transmission rate film.
532nm outgoing mirror, plating 1319nm high reflection film, plating 532nm high-transmission rate film.
3. You Zuo tetra-tunnel forms 808nm, 1319nm and exports with pair 532nm wavelength laser, and they can acted as reference mutual, can intersect for signal source, realize run-in synchronism, avoid interfering.
Accompanying drawing illustrates:
Accompanying drawing is structure chart of the present invention, below in conjunction with the accompanying drawing illustratively course of work.
Accompanying drawing is wherein: 1, semiconductor module, 2, coupler, 3, pumping optical fiber, 4, the right output end mirror of pumping optical fiber, 5, right wing coupler, 6, 1064nm optical fiber, 7, the left output end mirror of 1064nm optical fiber, 8, the right output end mirror of 1064nm optical fiber, 9, 532nm outgoing mirror, 10, 1064nm beam expanding lens, 11, 1064nm focus lamp, 12, 532nm Laser output, 13, 532nm beam expanding lens, 14, 532nm focus lamp, 15, 532nm Laser output, 16, 532nm outgoing mirror, 17, 808nm Laser output, 18, 808 focus lamps, 19, 808nm outgoing mirror, 20, 808nm beam expanding lens, 21, the right output end mirror of 1319nm optical fiber, 22, 1319nm Laser output, 23, 1319nm focus lamp, 24, 1319nm beam expanding lens, 25, 1319nm outgoing mirror, 26, the left output end mirror of 1319nm optical fiber, 27, 1319nm optical fiber, fan, 28, left coupler, 29, the left output end mirror of pumping optical fiber, 30, fan, 31, semiconductor module block power supply, 32, optical rail and ray machine tool, 33, frequency multiplication 532 laser ktp crystal, 34, frequency multiplication 532 laser ktp crystal.
Embodiment:
Semiconductor module 1 is set, powered by semiconductor module block power supply 31, export 808nm wavelength pump light, semiconductor module 1 arranges coupler 2, pumping optical fiber 3 is set on coupler 2, by coupler 2,808nm wavelength coupling pump light is entered pumping optical fiber 3, arrange pumping optical fiber be annular both sides upwards in the same way bilateral export end mirror structure, i.e. pumping optical fiber bilateral output end mirror structure in the same way, arrange and form bilateral 808nm Laser output by pumping optical fiber right output end mirror and the left output end mirror of pumping optical fiber, export on end mirror at pumping optical fiber bilateral, 1064nm optical fiber 6 and 1319nm optical fiber 27 are set respectively.
Right wing, on the right output end mirror 4 of pumping optical fiber, right coupler 5 is set, on right coupler 5,1064nm optical fiber 6 is set, 1064nm optical fiber 6 be set to annular both sides upwards in the same way bilateral export end mirror structure, to be of coupled connections the right output end mirror of pumping optical fiber 4 and 1064nm optical fiber 6 by right coupler 5, pump light 808nm laser enters 1064nm long wavelength fiber through left coupler 5, the right output end mirror 8 arranging 1064nm optical fiber with left output end mirror 8 is: the fiber resonance cavity that wavelength 1064nm infrared light occurs, namely form 1064nm infrared light to export, the top of the right output end mirror 8 of 1064nm optical fiber sets gradually: frequency multiplication 532nm laser ktp crystal, 532nm outgoing mirror, 532nm beam expanding lens expands and 532nm focus lamp, 1064nm wavelength is through frequency multiplication 532nm laser ktp crystal, frequency multiplication exports 532nm laser, expand through beam expanding lens and export 532nm laser with focus lamp, equally, the top of the left end output end mirror of 1064nm optical fiber sets gradually: frequency multiplication 532nm laser ktp crystal, 532nm outgoing mirror, 532nm beam expanding lens expands and 532nm focus lamp, 1064nm wavelength is through frequency multiplication 532nm laser ktp crystal, frequency multiplication exports 532nm laser, expand through beam expanding lens and export 532nm laser with focus lamp.
Left, on the right output end mirror of pumping optical fiber, left coupler is set, the optical fiber of 1319nm wavelength is set on left coupler, the optical fiber of 1319nm wavelength be set to annular both sides upwards in the same way bilateral export end mirror structure, be of coupled connections by left coupler the optical fiber of 1319nm wavelength, pump light 808nm laser enters 1319nm long wavelength fiber through left coupler, the right output end mirror and the left output end mirror that arrange the optical fiber of 1319nm wavelength are: the fiber resonance cavity that wavelength 1319nm infrared light occurs, namely form 1319nm infrared light to export, the top of the left end output end mirror of 1319nm optical fiber sets gradually: 1319nm outgoing mirror, 1319nm beam expanding lens expands and 1319nm focus lamp, 1319nm wavelength exports 1319nm laser through outgoing mirror, expand through beam expanding lens and export 1319nm laser with focus lamp, the right-hand member of 1319nm optical fiber exports end mirror and is set to 808nm outgoing mirror, its top sets gradually: 808nm beam expanding lens, 808nm outgoing mirror, 808nm focus lamp.
You Zuo tetra-tunnel forms 808nm, 1319nm, two 532nm laser four wavelength laser exports, that is forms 808nm, 1319nm, two 532nm laser four long wavelength fiber laser.
Except diode (led) module group power supply, the equal device of above-mentioned whole device, in optical rail and ray machine tool 32, is implemented air-cooled by fan 28, and composition exports 808nm, 1319nm, two 532nm laser four long wavelength fiber laser.
Claims (3)
1. anemobiagraph four ends export 808nm and 1319nm and two 532nm long wavelength fiber laser, it is characterized in that: semiconductor module is set, by semiconductor module Power supply, export 808nm wavelength pump light, semiconductor module arranges coupler, on coupler, pumping optical fiber is set, by coupler, 808nm wavelength coupling pump light is entered pumping optical fiber, arrange pumping optical fiber be annular both sides upwards in the same way bilateral export end mirror structure, i.e. pumping optical fiber bilateral output end mirror structure in the same way, arrange and form bilateral 808nm Laser output by pumping optical fiber right output end mirror and the left output end mirror of pumping optical fiber, export on end mirror at pumping optical fiber bilateral, 1064 optical fiber and 1319 optical fiber are set respectively.
Right wing, on the right output end mirror of pumping optical fiber, right coupler is set, the optical fiber of 1064nm wavelength is set on right coupler, the optical fiber of 1064nm wavelength be set to annular both sides upwards in the same way bilateral export end mirror structure, be of coupled connections by right coupler the optical fiber of the right output end mirror of pumping optical fiber and 1064nm wavelength, pump light 808nm laser enters 1064nm long wavelength fiber through left coupler, the right output end mirror and the left output end mirror that arrange the optical fiber of 1064nm wavelength are: the fiber resonance cavity that wavelength 1064nm infrared light occurs, namely form 1064nm infrared light to export, the top of the left end output end mirror of 1064nm optical fiber sets gradually: frequency multiplication 532nm laser ktp crystal, 532nm outgoing mirror, 532nm beam expanding lens expands and 532nm focus lamp, 1064nm wavelength is through frequency multiplication 532nm laser ktp crystal, frequency multiplication exports 532nm laser, expand through beam expanding lens and export 532nm laser with focus lamp, equally, the top of the right-hand member output end mirror of 1064nm optical fiber sets gradually: frequency multiplication 532nm laser ktp crystal, 532nm outgoing mirror, 532nm beam expanding lens expands and 532nm focus lamp, 1064nm wavelength is through frequency multiplication 532nm laser ktp crystal, frequency multiplication exports 532nm laser, expand through beam expanding lens and export 532nm laser with focus lamp, form two 532nm Laser output.
Left, on the right output end mirror of pumping optical fiber, left coupler is set, the optical fiber of 1319nm wavelength is set on left coupler, the optical fiber of 1319nm wavelength be set to annular both sides upwards in the same way bilateral export end mirror structure, be of coupled connections by left coupler the optical fiber of 1319nm wavelength, pump light 808nm laser enters 1319nm long wavelength fiber through left coupler, the right output end mirror and the left output end mirror that arrange the optical fiber of 1319nm wavelength are: the fiber resonance cavity that wavelength 1319nm infrared light occurs, namely 1319nm laser is formed, the left end of 1319nm optical fiber exports end mirror and is set to 1319nm outgoing mirror, its top sets gradually: 1319nm outgoing mirror, 1319nm beam expanding lens expands and 1319nm focus lamp, 1319nm wavelength exports 1319nm laser through outgoing mirror, expand through beam expanding lens and export 1319nm laser with focus lamp, the right-hand member of 1319nm optical fiber exports end mirror and is set to 808nm outgoing mirror, its top sets gradually: 808nm beam expanding lens, 808nm outgoing mirror, 808nm focus lamp.
You Zuo tetra-tunnel forms 808nm, 1319nm and two 532nm laser four wavelength laser exports, that is forms 808nm, 1319nm and two 532nm laser four long wavelength fiber laser.
2. according to claim 1, a kind of anemobiagraph four ends export 808nm and 1319nm and two 532nm long wavelength fiber laser, it is characterized in that: the optical fiber that 1064nm wavelength is set, it adopts doubly clad optical fiber, the optic fibre input end mirror of 1064nm wavelength, plating 808nm wavelength light high-transmission rate film, plating 1064nm laser high reflection film.
The optical fiber of 1319nm wavelength is set, the left output end mirror of optical fiber of 1319nm wavelength, plating 1319nm wavelength laser 7% transmissivity film; The optical fiber right output end mirror plating 808nm laser 7% transmissivity film of 1319nm wavelength plates 1319nm high reflection film simultaneously.
1319nm outgoing mirror, plating 1319nm high-transmission rate film.
Frequency multiplication 532nm laser ktp crystal, both sides plating 532nm high-transmission rate film.
532nm outgoing mirror, plating 1319nm high reflection film, plating 532nm high-transmission rate film.
3. according to claim 1, a kind of anemobiagraph four ends export 808nm and 1319nm and two 532nm long wavelength fiber laser, it is characterized in that: You Zuo tetra-tunnel forms 808nm, 1319nm and two 532nm wavelength laser exports, they can acted as reference mutual, can intersect for signal source, realize run-in synchronism, avoid interfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507471.7A CN104577669A (en) | 2013-10-22 | 2013-10-22 | Optical fiber laser for outputting lasers with wave lengths of 808nm, 1319nm, 532nm and 532nm at four ends for anemoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310507471.7A CN104577669A (en) | 2013-10-22 | 2013-10-22 | Optical fiber laser for outputting lasers with wave lengths of 808nm, 1319nm, 532nm and 532nm at four ends for anemoscope |
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| CN104577669A true CN104577669A (en) | 2015-04-29 |
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| CN201310507471.7A Pending CN104577669A (en) | 2013-10-22 | 2013-10-22 | Optical fiber laser for outputting lasers with wave lengths of 808nm, 1319nm, 532nm and 532nm at four ends for anemoscope |
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| US20060045161A1 (en) * | 2004-08-24 | 2006-03-02 | Minoru Kadoya | Intracavity sum-frequency mixing laser |
| CN203014153U (en) * | 2012-11-14 | 2013-06-19 | 无锡津天阳激光电子有限公司 | Fiber laser with bidirectional 1319nm wavelength output |
| CN203103748U (en) * | 2012-11-14 | 2013-07-31 | 无锡津天阳激光电子有限公司 | Fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm |
| CN203205694U (en) * | 2012-11-14 | 2013-09-18 | 无锡津天阳激光电子有限公司 | ual-end output optical parametric oscillation 1500nm/ 622nm dual-wavelength optical fiber laser |
| CN203205695U (en) * | 2012-11-14 | 2013-09-18 | 无锡津天阳激光电子有限公司 | Dual-end output optical parametric oscillation 440nm/532nm dual-wavelength optical fiber laser |
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- 2013-10-22 CN CN201310507471.7A patent/CN104577669A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005039126A (en) * | 2003-07-17 | 2005-02-10 | Sumitomo Electric Ind Ltd | Wide-band light source |
| US20060045161A1 (en) * | 2004-08-24 | 2006-03-02 | Minoru Kadoya | Intracavity sum-frequency mixing laser |
| CN203014153U (en) * | 2012-11-14 | 2013-06-19 | 无锡津天阳激光电子有限公司 | Fiber laser with bidirectional 1319nm wavelength output |
| CN203103748U (en) * | 2012-11-14 | 2013-07-31 | 无锡津天阳激光电子有限公司 | Fiber laser outputting laser light with dual wavelengths of 659.5nm and 1319nm |
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