CN105356243A - Laser used for laser radar and capable of outputting fiber laser light with wavelength being 3,335 nm - Google Patents
Laser used for laser radar and capable of outputting fiber laser light with wavelength being 3,335 nm Download PDFInfo
- Publication number
- CN105356243A CN105356243A CN201510973855.7A CN201510973855A CN105356243A CN 105356243 A CN105356243 A CN 105356243A CN 201510973855 A CN201510973855 A CN 201510973855A CN 105356243 A CN105356243 A CN 105356243A
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- China
- Prior art keywords
- light
- laser
- pump light
- wavelength
- ii1550nm
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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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Classifications
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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
-
- 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
- H01S3/109—Frequency multiplication, e.g. harmonic generation
Abstract
The invention discloses a laser used for laser radar and capable of outputting fiber laser light with wavelength being 3,335 nm. The overall light path is arranged in an S shape, a 3,335 nm wavelength signal light four-wave mixing periodically-poled lithium niobate laser resonant cavity is arranged, 3,335 nm wavelength signal light, 735 nm wavelength idler-frequency light, 985 nm wavelength pump light I and 1,550 nm wavelength pump light II enter the 3,335 nm wavelength signal light four-wave mixing periodically-poled lithium niobate laser resonant cavity and have a four-wave mixing effect, the 3,335 nm wavelength signal light is generated and output, and finally, the fiber laser light with the wavelength being 3,335 nm is output.
Description
Technical field: laser and applied technical field.
Technical background:
3335nm wavelength laser, the laser applied for laser radar, spectral detection, lasing light emitter, instrumental analysis etc., it can be used as the 3335nm wavelength applications light source of laser radar, laser radar, 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 3335nm long wavelength fiber output laser, overall light path is set to S type, signalization light 3335nm four wave mixing periodically poled lithium niobate laserresonator, flashlight 3335nm, ideler frequency light 735nm, pump light I985nm and pump light II1550nm entering signal light 3335nm four wave mixing periodically poled lithium niobate laserresonator, there is four-wave mixing effect, produce flashlight 3335nm to export, finally export 3335nm long wavelength fiber Laser output.
Technical scheme:
Overall light path is set to S type, and be divided into upper, middle and lower layer, upper strata is provided with: flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator, and flashlight 3335nm occurs.
Middle level is provided with: pump light I985nm gain resonant cavity, pump light II1550nm periodically poled lithium niobate laserresonator, ideler frequency light 735nm frequency multiplication resonant cavity, pump light I985nm fiber laser, pump light II1550nm fundamental frequency light fibre laser, ideler frequency light 735nm fundamental frequency light fibre laser, for there is pump light I985nm, pump light II1550nm and ideler frequency light 735nm.
Bottom is provided with: pump light I985nm semiconductor module, pump light II1550nm fundamental frequency semiconductor module, ideler frequency light 735nm fundamental frequency semiconductor module, fan, Laser Power Devices, all device is arranged on optical rail and ray machine tool above, Laser Power Devices drive semiconductor module, and fan is used for semiconductor module cooling.
Upper, middle and lower layer, between layers, is provided with: three-wavelength parameter coupler, pumping coupler, pump light I985nm coupler, pump light II1550nm fundamental frequency coupling device, ideler frequency light 735nm fundamental frequency coupling device, be coupled for optical-fiber laser.
Upper, middle and lower layer, between layers, also be provided with: pump light I985nm Transmission Fibers, pump light II1550nm fundamental frequency Transmission Fibers, ideler frequency light 735nm Transmission Fibers, ideler frequency light 735nm Transmission Fibers, pump light II1550nm Transmission Fibers, pump light I985nm Transmission Fibers, three-wavelength Transmission Fibers and flashlight 3335nm output optical fibre, for the transmission of laser in system.
Core content of the present invention:
A kind of laser radar 3335nm long wavelength fiber output laser, signalization light 3335nm four wave mixing periodically poled lithium niobate laserresonator, there is the periodically poled lithium niobate laser resonator structure of four wave mixing in signalization light 3335nm, ideler frequency light 735nm, pump light I985 and pump light II1550nm, forms 3335nm long wavelength fiber export structure.
Overall light path is set to S type, upper strata is provided with: flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator, middle level is provided with: ideler frequency light 735nm frequency multiplication resonant cavity, pump light I985 gain resonant cavity and pump light II1550nm periodically poled lithium niobate laserresonator, bottom is provided with: ideler frequency light 735nm fundamental frequency light fibre laser, pump light I985 fiber laser, pump light II1550nm fundamental frequency light fibre laser, ideler frequency light 735nm semiconductor module, pump light I985nm semiconductor module and pump light II1550nm semiconductor module, three-wavelength parameter coupler is set between upper strata with middle level and Transmission Fibers is connected, pumping coupler and Fiber connection are set between middle level and bottom.
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, pump light II1550nm semiconductor module, 3, pump light I985nm semiconductor module, 4, ideler frequency light 735nm semiconductor module, 5, fan, 6, Laser Power Devices, 7, pumping coupler, 8, pump light II1550nm fundamental frequency light fibre laser, 9, pump light I985nm fiber laser, 10, ideler frequency light 735nm fundamental frequency light fibre laser, 11, pump light II1550nm fundamental frequency light fibre laser output optical fibre, 12, pump light I985nm fiber laser output optical fibre, 13, ideler frequency light 735nm fiber laser output optical fibre, 14, ideler frequency light 735nm Transmission Fibers, 15, ideler frequency light 735nm frequency multiplication resonant cavity, 16, ideler frequency light 735nm fundamental frequency coupling device, 17, pump light I985nm coupler, 18, pump light I985nm gain resonant cavity, 19, pump light I985nm Transmission Fibers, 20, pump light II1550nm fundamental frequency coupling device, 21, pump light II1550nm Transmission Fibers, 22, pump light II1550nm periodically poled lithium niobate laserresonator, 23, three-wavelength parameter coupler, 24, three-wavelength parameter coupling transmission optical fiber, 25, three-wavelength input coupler, 26, flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator, 27, flashlight 3335nm output optical fibre, 28, flashlight 3335nm output.
Embodiment:
Overall light path is set to S type, upper strata is provided with: flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator 26, middle level is provided with: ideler frequency light 735nm frequency multiplication resonant cavity 15, pump light I985 gain resonant cavity 18 and pump light II1550nm periodically poled lithium niobate laserresonator 22, bottom is provided with: ideler frequency light 735nm fundamental frequency light fibre laser 10, pump light I985 fiber laser 9, pump light II1550nm fundamental frequency light fibre laser 8, ideler frequency light 735nm semiconductor module 4, pump light I985nm semiconductor module 3 and pump light II1550nm semiconductor module 2, three-wavelength parameter coupler 23 is set between upper strata with middle level and three-wavelength Transmission Fibers 24 is connected, pumping coupler 7 is set between middle level with bottom and Transmission Fibers is connected.
Signalization light 3335nm four wave mixing periodically poled lithium niobate laserresonator 26, arrange, arrange, arrange, signalization light 3335nm, ideler frequency light 735nm, there is the structure of the periodically poled lithium niobate laserresonator 26 of four wave mixing in pump light I985nm and pump light II1550nm, at the output of flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator 26, signalization light 3335nm output optical fibre 27, at the input of flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator 26, three-wavelength input coupler 25 is set, the input of three-wavelength input coupler 25 is connected with three-wavelength parameter coupling transmission optical fiber 24, three-wavelength parameter coupling transmission optical fiber 24 is connected to the output of three-wavelength parameter coupler 23, three-wavelength parameter coupler 23 is provided with three inputs, the left input of three-wavelength parameter coupler 23 is connected with ideler frequency light 735nm Transmission Fibers 14, ideler frequency light 735nm Transmission Fibers 14 is drawn from the output of ideler frequency light 735nm frequency multiplication resonant cavity 15, the input of ideler frequency light 735nm frequency multiplication resonant cavity 15 is connected to ideler frequency light 735nm fundamental frequency coupling device 16, the input of ideler frequency light 735nm fundamental frequency coupling device 16 is connected to ideler frequency light 735nm fiber laser output optical fibre 13, the lower end of ideler frequency light 735nm fiber laser 10 is connected to pumping coupler 7, the lower end of pumping coupler 7 is connected with ideler frequency light 735nm semiconductor module 4, the middle input of three-wavelength parameter coupler 23 is connected with pump light I985nm Transmission Fibers 19, pump light I985nm Transmission Fibers 19 is drawn from pump light I985nm gain resonant cavity 18, the input of pump light I985nm gain resonant cavity 18 is connected with pump light I985nm coupler 17, the input of pump light I coupler 17 is connected with pump light I fiber laser output optical fibre 12, the lower end of pump light I985nm fiber laser 9 is connected with pumping coupler, the lower end of pumping coupler is connected with pump light I985nm semiconductor module 9, the right input of three-wavelength parameter coupler 23 is connected with pump light II1550nm Transmission Fibers 21, pump light II1550nm Transmission Fibers 21 is drawn from the output of pump light II1550nm periodically poled lithium niobate laserresonator 22, pump light II1550nm periodically poled lithium niobate laserresonator 22 input is connected with pump light II1550nm coupler 20, the input of pump light II1550nm coupler 20 is connected with pump light II1550nm fundamental frequency light fibre laser output optical fibre 11, pump light II1550nm fundamental frequency light fibre laser output optical fibre 11 is drawn from pump light II1550nm fundamental frequency light fibre laser 8, the lower end of pump light II1550nm fundamental frequency light fibre laser 8 is connected to pumping coupler, pumping coupler is connected to pump light II1550nm semiconductor module 2, pump light II1550nm semiconductor module 2, pump light I985nm semiconductor module 3 are arranged on optical rail and ray machine tool 1 with ideler frequency light 735nm semiconductor module 4, optical rail and ray machine tool 1 are also provided with Laser Power Devices 6 and fan 5, above-mentioned whole optical element is all arranged on optical rail and ray machine tool 1, overall formation 3335nm long wavelength fiber output laser structure.
The course of work:
Laser Power Devices 6 are pump light I985nm semiconductor module 3, pump light II1550nm semiconductor module 2 is powered with ideler frequency light 735nm semiconductor module 4, pump light I985nm semiconductor module 3 drives pump light I985nm fiber laser 8 by pumping coupler, pump light II1550nm semiconductor module 2 drives pump light II1550nm fundamental frequency light fibre laser 8, ideler frequency light 735nm semiconductor module 4 to drive ideler frequency light 735nm fundamental frequency light fibre laser 10 by pumping coupler by pumping coupler, pump light I985nm fundamental frequency light is by pump light I985nm fiber laser output optical fibre 11, be transferred in pump light I985nm coupler 20, be coupled in pump light I985nm periodically poled lithium niobate laserresonator 22 through pump light I985nm coupler 20, export pump light I985nm through pump light I985nm periodically poled lithium niobate laserresonator, pump light II1550nm is through pump light II1550nm fundamental frequency light fibre laser output optical fibre 12, be transferred in pump light II1550nm fundamental frequency coupling device 17, enter in pump light II1550nm gain resonant cavity 18 through pump light II1550nm fundamental frequency coupling device 17, export pump light II1550nm through the gain of pump light II1550nm gain resonant cavity 18, ideler frequency light 735nm fundamental frequency light is by ideler frequency light 735nm fiber laser output optical fibre 13, be transferred in ideler frequency light 735nm fundamental frequency coupling device 16, be coupled in ideler frequency light 735nm frequency multiplication resonant cavity 15 through ideler frequency light 735nm fundamental frequency coupling device 16, export ideler frequency light 735nm through ideler frequency light 735nm frequency multiplication resonant cavity frequency multiplication, pump light I985nm enters three-wavelength parameter coupler 23 through the transmission of pump light I985nm Transmission Fibers 21, pump light II1550nm enters three-wavelength parameter coupler 23 through pump light II1550nm Transmission Fibers 19, ideler frequency light 735nm enters three-wavelength parameter coupler 23 through ideler frequency light 735nm Transmission Fibers 14, three-wavelength parameter coupling transmission optical fiber 24 is entered by three-wavelength parameter coupler 23 coupling output, transmission enters three-wavelength input coupler 25, by three-wavelength parameter coupler 25 entering signal light 3335nm four wave mixing periodically poled lithium niobate laserresonator 26, flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator 26 output signalization light 3335nm output optical fibre 27, flashlight 3335nm exports through flashlight 3335nm output 28, overall formation 3335nm long wavelength fiber Output of laser.
Claims (2)
1. a laser radar 3335nm long wavelength fiber output laser, it is characterized by: signalization light 3335nm four wave mixing periodically poled lithium niobate laserresonator, there is the periodically poled lithium niobate laser resonator structure of four wave mixing in signalization light 3335nm, ideler frequency light 735nm, pump light I985 and pump light II1550nm, forms 3335nm long wavelength fiber export structure.
2. a kind of laser radar 3335nm according to claim 1, 735nm, 985nm, 1550nm tetra-long wavelength fiber output laser, it is characterized by: overall light path is set to S type, upper strata is provided with: flashlight 3335nm four wave mixing periodically poled lithium niobate laserresonator, middle level is provided with: ideler frequency light 735nm frequency multiplication resonant cavity, pump light I985 gain resonant cavity and pump light II1550nm periodically poled lithium niobate laserresonator, bottom is provided with: ideler frequency light 735nm fundamental frequency light fibre laser, pump light I985 fiber laser, pump light II1550nm fundamental frequency light fibre laser, ideler frequency light 735nm semiconductor module, pump light I985nm semiconductor module and pump light II1550nm semiconductor module, three-wavelength parameter coupler is set between upper strata with middle level and Transmission Fibers is connected, pumping coupler and Fiber connection are set between middle level and bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973855.7A CN105356243A (en) | 2015-12-21 | 2015-12-21 | Laser used for laser radar and capable of outputting fiber laser light with wavelength being 3,335 nm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973855.7A CN105356243A (en) | 2015-12-21 | 2015-12-21 | Laser used for laser radar and capable of outputting fiber laser light with wavelength being 3,335 nm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105356243A true CN105356243A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510973855.7A Pending CN105356243A (en) | 2015-12-21 | 2015-12-21 | Laser used for laser radar and capable of outputting fiber laser light with wavelength being 3,335 nm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105356243A (en) |
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2015
- 2015-12-21 CN CN201510973855.7A patent/CN105356243A/en active Pending
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
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| WD01 | Invention patent application deemed withdrawn after publication |