CN105337160A - 767 nm optical fiber output laser for laser radar - Google Patents
767 nm optical fiber output laser for laser radar Download PDFInfo
- Publication number
- CN105337160A CN105337160A CN201510938911.3A CN201510938911A CN105337160A CN 105337160 A CN105337160 A CN 105337160A CN 201510938911 A CN201510938911 A CN 201510938911A CN 105337160 A CN105337160 A CN 105337160A
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- CN
- China
- Prior art keywords
- laser
- output
- optical fiber
- lithium niobate
- fiber
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- 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.)
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- 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
-
- 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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/1083—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering using parametric generation
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Provided is a 767 nm optical fiber output laser for laser radar. A 767 nm four-wave mixing periodic polarized lithium niobate laser resonant cavity is arranged. Signal light of 767 nm, idler frequency light of 660 nm, pump light I of 1064 nm and pump light II of 532 nm enter the 767 nm four-wave mixing periodic polarized lithium niobate laser resonant cavity, the four-wave mixing effect is performed, the output of signal light of 767 nm is generated, and finally 767 nm wavelength optical fiber laser output is performed.
Description
Technical field: laser and applied technical field.
Technical background:
767nm wavelength laser, the laser applied for laser radar spectral detection, lasing light emitter, instrumental analysis etc., it can be used as laser radar optical fiber and passes the using light sources such as the analyzing and testing of 767nm wavelength sensor, and it is also for laser and optoelectronic areas such as laser radar 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 laser radar 767nm long wavelength fiber output laser, the periodically poled lithium niobate laserresonator of 767nm four wave mixing is set, flashlight 767nm, ideler frequency light 660nm, pump light I1064nm and pump light II532nm enter 767nm four wave mixing periodically poled lithium niobate laserresonator, there is four-wave mixing effect, produce flashlight 767nm to export, finally export 767nm long wavelength fiber Laser output.
The structure of the periodically poled lithium niobate laserresonator of scheme one, 767nm four wave mixing.
There is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 767nm, ideler frequency light 660nm, pump light I1064nm and pump light II532nm, set gradually three-wavelength input mirror from its input, 767nm four wave mixing periodically poled lithium niobate laser crystal, 767nm outgoing mirror, 767nm focus on output coupling mirror, 767nm focuses on output coupling mirror coupling and accesses 767nm output optical fibre.
Scheme two, 660nm periodically poled lithium niobate laser parameter oscillating tank chamber is set
660nm periodically poled lithium niobate laser parameter oscillating tank chamber is set, set gradually from its input: 3-stage optical fiber input mirror, 1064nm parametric oscillation basic frequency laser crystal, parametric oscillation input mirror, 660nm periodically poled lithium niobate laser crystal, 660nm outgoing mirror, focus on output coupling mirror with the 660nm of output, form 660nm periodically poled lithium niobate laser parameter oscillating tank chamber thus.
Scheme three, 532nm double-frequency laser resonant cavity is set
532nm double-frequency laser resonant cavity is set, set gradually from its input: secondary input mirror, 532nm basic frequency laser crystal, 532nm frequency doubling laser crystal, 532nm outgoing mirror 21 focus on output coupling mirror with the 532nm of output, form 532nm double-frequency laser resonant cavity thus.
Scheme four, 1064nm resonant cavity is set
1064nm resonant cavity is set, 1064nm resonant cavity is set, set gradually from its input: one-level input mirror, 1064nm laser crystal, 1064nm outgoing mirror 11 focus on output coupling mirror with the 1064nm of output, form 1064nm resonant cavity thus.
Scheme five, 3-stage optical fiber structure is set
3-stage optical fiber structure is set, 3-stage optical fiber structure is integrally connected by one-level fiber turns, secondary fiber turns and 3-stage optical fiber circle and forms, one-level fiber turns is connected on semiconductor module by 808nm pumping coupler, semiconductor module is by semiconductor module Power supply, above-mentioned whole optical element is all arranged on optical rail and ray machine tool, and optical rail and ray machine tool arrange fan 3.
Core content of the present invention:
A kind of laser radar 767nm long wavelength fiber output laser, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 767nm, ideler frequency light 660nm, pump light I1064nm and pump light II532nm, there is four-wave mixing effect and generate the output of flashlight 767nm optical-fiber laser, form 767nm long wavelength fiber output laser structure.
Accompanying drawing illustrates:
Accompanying drawing is the structure chart of this patent, and accompanying drawing is wherein: 1, optical rail and ray machine tool, 2, semiconductor module, 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, 1064nm resonant cavity, 15, secondary fiber turns, 16, secondary fiber-optic output, 17, secondary fiber coupler, 18, 532nm focuses on output coupling mirror, and 19, 532nm output optical fibre, 20, 532nm frequency doubling laser crystal, 21, 532nm outgoing mirror, 22, 532nm basic frequency laser crystal, 23, secondary input mirror, 24, 532nm double-frequency laser resonant cavity, 25, 3-stage optical fiber circle, 26, 660nm output optical fibre, 27, 660nm focuses on output coupling mirror, and 28, 660nm outgoing mirror, 29, 660nm periodically poled lithium niobate laser crystal, 30, parametric oscillation input mirror, 31, 1064nm parametric oscillation basic frequency laser crystal, 32, 3-stage optical fiber input mirror, 33, three-wavelength parameter coupler, 34, 3-stage optical fiber coupler, 35, 660nm periodically poled lithium niobate laser parameter oscillating tank chamber, 36, 3-stage optical fiber output, 37, three-wavelength parameter coupling transmission optical fiber, 38, 767nm four wave mixing periodically poled lithium niobate laserresonator, 39, three-wavelength input mirror, 40, 767nm four wave mixing periodically poled lithium niobate laser crystal, 41, 767nm outgoing mirror, 42, 767nm focuses on output coupling mirror, and 43, 767nm output optical fibre, 44, 767nm Laser output, 45, 3-stage optical fiber structure.
Embodiment:
767nm four wave mixing periodically poled lithium niobate laserresonator 38 is set, signalization light 767nm, ideler frequency light 660nm, there is the structure of the periodically poled lithium niobate laserresonator 38 of four wave mixing in pump light I1064nm and pump light II532nm, 767nm is set at 767nm four wave mixing periodically poled lithium niobate laserresonator 38 output and focuses on output coupling mirror 42 coupling access 767nm output optical fibre 43, ideler frequency light 660nm, pump light I1064nm and pump light II532nm with derive from three-wavelength parameter coupling transmission optical fiber 37, three-wavelength parameter coupler 33 is set before three-wavelength parameter coupling transmission optical fiber 37, by 1064nm output optical fibre 13, 532nm output optical fibre 19 is coupled with 660nm output optical fibre 26 and accesses three-wavelength parameter coupler 33, 660nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is set, 660nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 focuses on output coupling mirror 27 by the 660nm of its output and is linked in 660nm output optical fibre 26, the input in 660nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is connected on 3-stage optical fiber output 36 by 3-stage optical fiber coupler 34, 3-stage optical fiber output 36 is drawn by the 3-stage optical fiber circle 25 of 3-stage optical fiber structure 45, the structure of the periodically poled lithium niobate laserresonator 38 of signalization light 767nm four wave mixing, three-wavelength input mirror 39 is set gradually from its input, 767nm four wave mixing periodically poled lithium niobate laser crystal 40, 767nm outgoing mirror 41, 767nm focuses on output coupling mirror 42, 767nm focuses on output coupling mirror 42 coupling access 767nm output optical fibre 43, 532nm double-frequency laser resonant cavity 24 is set, 532nm double-frequency laser resonant cavity 24 focuses on output coupling mirror 18 by the 532nm of its output and is linked in 532nm output optical fibre 19, 532nm double-frequency laser resonant cavity 24 is connected on secondary fiber-optic output 16 by the secondary fiber coupler 17 of its input, secondary fiber-optic output 16 is drawn from the secondary fiber turns 15 of 3-stage optical fiber structure 45, 1064nm resonant cavity 14 is set, the output of 1064nm resonant cavity 14 focuses on output coupling mirror 12 by 1064nm and is linked in 1064nm output optical fibre 13,1064nm resonant cavity 14 is connected on one-level fiber-optic output 7 by the one-level fiber coupler 8 of its input, and one-level fiber-optic output 7 is drawn by the one-level fiber turns 6 of 3-stage optical fiber structure 45, 660nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is set, set gradually from its input: the 660nm of 3-stage optical fiber input mirror 32,1064nm parametric oscillation basic frequency laser crystal 31, parametric oscillation input mirror 30,660nm periodically poled lithium niobate laser crystal 29,660nm outgoing mirror 28, output focuses on output coupling mirror 27, forms 660nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 thus, 532nm double-frequency laser resonant cavity 24 is set, set gradually from its input: secondary inputs mirror 23,532nm basic frequency laser crystal 22,532nm outgoing mirror 21, focuses on output coupling mirror 18 with the 532nm of output, forms 532nm double-frequency laser resonant cavity 24 thus, 1064nm resonant cavity 14 is set, set gradually from its input: one-level input mirror 9, 1064nm laser crystal 10, 1064nm outgoing mirror 11 focuses on output coupling mirror 12 with the 1064nm of output, form 1064nm resonant cavity 14 thus, 3-stage optical fiber structure 45 is set, 3-stage optical fiber structure 45 is by one-level fiber turns 6, secondary fiber turns 15 and 3-stage optical fiber circle 25 are integrally connected and form, one-level fiber turns 6 is connected on semiconductor module 2 by 808nm pumping coupler 4, semiconductor module 2 is powered by semiconductor module block power supply 5, above-mentioned whole optical element is all arranged on optical rail and ray machine tool 1, optical rail and ray machine tool 1 arrange fan 3, overall formation 767nm long wavelength fiber output laser structure.
The course of work:
Semiconductor module block power supply 5 is powered and to be powered to semiconductor module 2, semiconductor module 2 is launched 808nm laser and is coupled into one-level fiber turns 6 through 808nm pumping coupler 4, thus enter secondary fiber turns 15 and the 3-stage optical fiber circle 25 of 3-stage optical fiber structure 45, 808nm laser obtains gain in 3-stage optical fiber structure 45, 3-stage optical fiber output 36 is drawn from by 3-stage optical fiber circle 25, input 808nm laser enters 660nm periodically poled lithium niobate laser parameter oscillating tank chamber 35, the 1064nm laser that 1064nm parametric oscillation basic frequency laser crystal 31 through 660nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 generates goes pump optical parametric oscillation to generate 660nm laser, focusing on output coupling mirror 27 through 660nm is coupled in 660nm output optical fibre 26, by its input 660nm laser in three-wavelength parameter coupler 33, secondary fiber-optic output 16 is drawn from by secondary fiber turns 15, input 808nm laser enters 532nm double-frequency laser resonant cavity 24,532nm basic frequency laser crystal 22 through 532nm double-frequency laser resonant cavity 24 generates 532nm laser, focusing on output coupling mirror 18 through 532nm is coupled in 532nm output optical fibre 19, by its input 532nm laser in three-wavelength parameter coupler 33, one-level fiber-optic output 7 is drawn from by one-level fiber turns 6, input 808nm laser enters 1064nm resonant cavity 14,1064nm resonant cavity 14 generates 1064nm basic frequency laser, focusing on output coupling mirror 12 through 1064nm is coupled in 1064nm output optical fibre 13, by its input 1064nm laser in three-wavelength parameter coupler 33, thus, 660nm laser, 1064nm laser and 532nm laser are coupled into 767nm four wave mixing periodically poled lithium niobate laserresonator 38 through three-wavelength parameter coupler 33, there is four-wave mixing effect in flashlight 767nm, ideler frequency light 660nm, pump light I1064nm and pump light II532nm, make flashlight 767nm generation, gain, flashlight 767nm focuses on output coupling mirror 42 through 767nm and exports 767nm Laser output 44 with 767nm output optical fibre 43.
Claims (1)
1. a laser radar 767nm long wavelength fiber output laser, it is characterized by, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 767nm, ideler frequency light 660nm, pump light I1064nm and pump light II532nm, there is four-wave mixing effect and generate the output of flashlight 767nm optical-fiber laser, form 767nm long wavelength fiber output laser structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938911.3A CN105337160A (en) | 2015-12-14 | 2015-12-14 | 767 nm optical fiber output laser for laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938911.3A CN105337160A (en) | 2015-12-14 | 2015-12-14 | 767 nm optical fiber output laser for laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105337160A true CN105337160A (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938911.3A Pending CN105337160A (en) | 2015-12-14 | 2015-12-14 | 767 nm optical fiber output laser for laser radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105337160A (en) |
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2015
- 2015-12-14 CN CN201510938911.3A patent/CN105337160A/en active Pending
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Application publication date: 20160217 |
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| WD01 | Invention patent application deemed withdrawn after publication |