CN105375274A - 3341nm, 850nm and 1550nm three-wavelength optical-fiber output laser for laser radar - Google Patents

3341nm, 850nm and 1550nm three-wavelength optical-fiber output laser for laser radar Download PDF

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Publication number
CN105375274A
CN105375274A CN201510981046.0A CN201510981046A CN105375274A CN 105375274 A CN105375274 A CN 105375274A CN 201510981046 A CN201510981046 A CN 201510981046A CN 105375274 A CN105375274 A CN 105375274A
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CN
China
Prior art keywords
light
pump light
laser
ii1550nm
ideler frequency
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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.)
Pending
Application number
CN201510981046.0A
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Chinese (zh)
Inventor
王涛
胡亚鹏
朱金龙
赵新潮
马龙飞
王茁
张波
王天泽
昝占华
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Nanjing Jinsonghan Electric Power Science and Technology Co Ltd
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Nanjing Jinsonghan Electric Power Science and Technology Co Ltd
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Priority to CN201510981046.0A priority Critical patent/CN105375274A/en
Publication of CN105375274A publication Critical patent/CN105375274A/en
Pending legal-status Critical Current

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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
    • H01S3/10—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

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Lasers (AREA)

Abstract

A 3341nm, 850nm and 1550nm three-wavelength optical-fiber output laser for a laser radar is provided with a signal light 3341nm four-wave mixing periodically polarized lithium niobate laser resonant cavity, an idler frequency light 850nm beam splitting optical-fiber ring is disposed on an idler frequency light 850nm transmission optical fiber, a pump light II 1550nm beam splitting optical-fiber ring is disposed on a pump light II 1550nm transmission optical fiber, signal light 3341nm, idler frequency light 850m, pump light I 1208nm and pump light II 1550nm go into the signal light 3341nm four-wave mixing periodically polarized lithium niobate laser resonant cavity, a four-wave mixing effect occurs, a signal light 3341nm output is generated, and 3341nm, 850nmand 1550nm three-wavelength optical-fiber laser is finally output.

Description

A kind of laser radar 3341nm, 850nm, 1550nm three-wavelength optical fiber output laser
Technical field: laser and applied technical field.
Technical background:
3341nm, 850nm, 1550nm three-wavelength laser, the laser applied for laser radar, marine exploration, spectral detection, lasing light emitter, instrumental analysis etc., it can be used as 3341nm, 850nm, 1550nm three-wavelength using light source of laser radar, marine exploration, 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 3341nm, 850nm, 1550nm three-wavelength optical fiber output laser, overall light path is set to S type, signalization light 3341nm four wave mixing periodically poled lithium niobate laserresonator, ideler frequency light 850nm Transmission Fibers arranges ideler frequency light 850nm splitting optical fiber circle, ideler frequency light 850nm output is set, pump light II1550nm Transmission Fibers arranges pump light II1550nm splitting optical fiber circle, pump light II1550nm output is set, flashlight 3341nm, ideler frequency light 850nm, pump light I1208nm and pump light II1550nm entering signal light 3341nm four wave mixing periodically poled lithium niobate laserresonator, there is four-wave mixing effect, produce flashlight 3341nm to export, finally export 3341nm, 850nm, 1550nm three-wavelength optical-fiber laser exports.
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 313341nm four wave mixing periodically poled lithium niobate laserresonator, and flashlight 313341nm occurs.
Middle level is provided with: pump light I1208nm gain resonant cavity, pump light II1550nm periodically poled lithium niobate laserresonator, ideler frequency light 850nm frequency multiplication resonant cavity, pump light I1208nm fiber laser, pump light II1550nm fundamental frequency light fibre laser, ideler frequency light 850nm fundamental frequency light fibre laser, for there is pump light I1208nm, pump light II1550nm and ideler frequency light 850nm.
Bottom is provided with: pump light I1208nm semiconductor module, pump light II1550nm fundamental frequency semiconductor module, ideler frequency light 850nm 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 I1208nm coupler, pump light II1550nm fundamental frequency coupling device, ideler frequency light 850nm fundamental frequency coupling device, be coupled for optical-fiber laser.
Upper, middle and lower layer, between layers, also be provided with: pump light I1208nm Transmission Fibers, pump light II1550nm fundamental frequency Transmission Fibers, ideler frequency light 850nm Transmission Fibers, ideler frequency light 850nm Transmission Fibers, pump light II1550nm Transmission Fibers, pump light I1208nm Transmission Fibers, three-wavelength Transmission Fibers and flashlight 313341nm output optical fibre, for the transmission of laser in system.
Upper, middle level, is provided with: ideler frequency light 850nm splitting optical fiber circle, pump light II1550nm splitting optical fiber circle, for laser beam splitter, realizes multiwavelength laser and exports.
Core content of the present invention:
A kind of laser radar 3341nm, 850nm, 1550nm three-wavelength optical fiber output laser, signalization light 3341nm four wave mixing periodically poled lithium niobate laserresonator, ideler frequency light 850nm Transmission Fibers arranges ideler frequency light 850nm splitting optical fiber circle, ideler frequency light 850nm output is set, pump light II1550nm Transmission Fibers arranges pump light II1550nm splitting optical fiber circle, pump light II1550nm output is set, signalization light 3341nm, ideler frequency light 850nm, there is the periodically poled lithium niobate laser resonator structure of four wave mixing in pump light I1208 and pump light II1550nm, form 3341nm, 850nm, 1550nm three-wavelength optical fiber export structure.
Overall light path is set to S type, upper strata is provided with: flashlight 3341nm four wave mixing periodically poled lithium niobate laserresonator, middle level is provided with: ideler frequency light 850nm frequency multiplication resonant cavity, pump light I1208 gain resonant cavity and pump light II1550nm periodically poled lithium niobate laserresonator, bottom is provided with: ideler frequency light 850nm fundamental frequency light fibre laser, pump light I1208 fiber laser, pump light II1550nm fundamental frequency light fibre laser, ideler frequency light 850nm semiconductor module, pump light I1208nm 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 I1208nm semiconductor module, 4, ideler frequency light 850nm semiconductor module, 5, fan, 6, Laser Power Devices, 7, pumping coupler, 8, pump light II1550nm fundamental frequency light fibre laser, 9, pump light I1208nm fiber laser, 10, ideler frequency light 850nm fundamental frequency light fibre laser, 11, pump light II1550nm fundamental frequency light fibre laser output optical fibre, 12, pump light I1208nm fiber laser output optical fibre, 13, ideler frequency light 850nm fiber laser output optical fibre, 14, ideler frequency light 850nm Transmission Fibers, 15, ideler frequency light 850nm frequency multiplication resonant cavity, 16, ideler frequency light 850nm fundamental frequency coupling device, 17, pump light I1208nm coupler, 18, pump light I1208nm gain resonant cavity, 19, pump light I1208nm 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 3341nm four wave mixing periodically poled lithium niobate laserresonator, 27, flashlight 3341nm output optical fibre, 28, flashlight 3341nm output, 29, ideler frequency light 850nm output, 30, ideler frequency light 850nm splitting optical fiber circle, 31, pump light II1550nm output, 32, pump light II1550nm splitting optical fiber circle.
Embodiment:
Overall light path is set to S type, upper strata is provided with: flashlight 3341nm four wave mixing periodically poled lithium niobate laserresonator 26, middle level is provided with: ideler frequency light 850nm frequency multiplication resonant cavity 15, pump light I1208 gain resonant cavity 18 and pump light II1550nm periodically poled lithium niobate laserresonator 22, bottom is provided with: ideler frequency light 850nm fundamental frequency light fibre laser 10, pump light I1208 fiber laser 9, pump light II1550nm fundamental frequency light fibre laser 8, ideler frequency light 850nm semiconductor module 4, pump light I1208nm 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 3341nm four wave mixing periodically poled lithium niobate laserresonator 26, ideler frequency light 850nm splitting optical fiber circle 30 is set pump light II1550nm splitting optical fiber circle 32 is set, signalization light 3341nm, ideler frequency light 850nm, there is the structure of the periodically poled lithium niobate laserresonator 26 of four wave mixing in pump light I1208nm and pump light II1550nm, at the output of flashlight 3341nm four wave mixing periodically poled lithium niobate laserresonator 26, signalization light 3341nm output optical fibre 27, at the input of flashlight 3341nm 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 850nm Transmission Fibers 14, ideler frequency light 850nm Transmission Fibers 14 is drawn from the output of ideler frequency light 850nm frequency multiplication resonant cavity 15, the input of ideler frequency light 850nm frequency multiplication resonant cavity 15 is connected to ideler frequency light 850nm fundamental frequency coupling device 16, the input of ideler frequency light 850nm fundamental frequency coupling device 16 is connected to ideler frequency light 850nm fiber laser output optical fibre 13, the lower end of ideler frequency light 850nm fiber laser 10 is connected to pumping coupler 7, the lower end of pumping coupler 7 is connected with ideler frequency light 850nm semiconductor module 4, the middle input of three-wavelength parameter coupler 23 is connected with pump light I1208nm Transmission Fibers 19, pump light I1208nm Transmission Fibers 19 is drawn from pump light I1208nm gain resonant cavity 18, the input of pump light I1208nm gain resonant cavity 18 is connected with pump light I1208nm 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 I1208nm fiber laser 9 is connected with pumping coupler, the lower end of pumping coupler is connected with pump light I1208nm 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 I1208nm semiconductor module 3 and ideler frequency light 850nm semiconductor module 4 are arranged on optical rail and ray machine tool 1, optical rail and ray machine tool 1 are also provided with Laser Power Devices 6 and fan 5, ideler frequency light 850nm Transmission Fibers 14 arranges ideler frequency light 850nm splitting optical fiber circle 30, ideler frequency light 850nm output 29 is set, pump light II1550nm Transmission Fibers 21 arranges pump light II1550nm splitting optical fiber circle 32, pump light II1550nm output 31 is set, above-mentioned whole optical element is all arranged on optical rail and ray machine tool 1, overall formation 3341nm, 850nm, 1550nm three-wavelength optical fiber output laser structure.
The course of work:
Laser Power Devices 6 are pump light I1208nm semiconductor module 3, pump light II1550nm semiconductor module 2 is powered with ideler frequency light 850nm semiconductor module 4, pump light I1208nm semiconductor module 3 drives pump light I1208nm 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 850nm semiconductor module 4 to drive ideler frequency light 850nm fundamental frequency light fibre laser 10 by pumping coupler by pumping coupler, pump light I1208nm fundamental frequency light is by pump light I1208nm fiber laser output optical fibre 11, be transferred in pump light I1208nm coupler 20, be coupled in pump light I1208nm periodically poled lithium niobate laserresonator 22 through pump light I1208nm coupler 20, export pump light I1208nm through pump light I1208nm 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 850nm fundamental frequency light is by ideler frequency light 850nm fiber laser output optical fibre 13, be transferred in ideler frequency light 850nm fundamental frequency coupling device 16, be coupled in ideler frequency light 850nm frequency multiplication resonant cavity 15 through ideler frequency light 850nm fundamental frequency coupling device 16, export ideler frequency light 850nm through ideler frequency light 850nm frequency multiplication resonant cavity frequency multiplication, pump light I1208nm enters three-wavelength parameter coupler 23 through the transmission of pump light I1208nm Transmission Fibers 21, pump light II1550nm enters three-wavelength parameter coupler 23 through pump light II1550nm Transmission Fibers 19, ideler frequency light 850nm enters three-wavelength parameter coupler 23 through ideler frequency light 850nm 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 3341nm four wave mixing periodically poled lithium niobate laserresonator 26, flashlight 3341nm four wave mixing periodically poled lithium niobate laserresonator 26 output signalization light 3341nm output optical fibre 27, flashlight 3341nm exports through flashlight 3341nm output 28, draw ideler frequency light 850nm by ideler frequency light 850nm splitting optical fiber circle 30 to export through ideler frequency light 850nm output 29, draw pump light II1550nm by pump light II1550nm splitting optical fiber circle 32 to export through pump light II1550nm output 31, overall formation 3341nm, 850nm, 1550nm three-wavelength optical fiber Output of laser.

Claims (2)

1. a laser radar 3341nm, 850nm, 1550nm three-wavelength optical fiber output laser, it is characterized by: signalization light 3341nm four wave mixing periodically poled lithium niobate laserresonator, ideler frequency light 850nm Transmission Fibers arranges ideler frequency light 850nm splitting optical fiber circle, ideler frequency light 850nm output is set, pump light II1550nm Transmission Fibers arranges pump light II1550nm splitting optical fiber circle, pump light II1550nm output is set, signalization light 3341nm, ideler frequency light 850nm, there is the periodically poled lithium niobate laser resonator structure of four wave mixing in pump light I1208 and pump light II1550nm, form 3341nm, 850nm, 1550nm three-wavelength optical fiber export structure.
2. a kind of laser radar 3341nm according to claim 1, 850nm, 1208nm, 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 3341nm four wave mixing periodically poled lithium niobate laserresonator, middle level is provided with: ideler frequency light 850nm frequency multiplication resonant cavity, pump light I1208 gain resonant cavity and pump light II1550nm periodically poled lithium niobate laserresonator, bottom is provided with: ideler frequency light 850nm fundamental frequency light fibre laser, pump light I1208 fiber laser, pump light II1550nm fundamental frequency light fibre laser, ideler frequency light 850nm semiconductor module, pump light I1208nm 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.
CN201510981046.0A 2015-12-22 2015-12-22 3341nm, 850nm and 1550nm three-wavelength optical-fiber output laser for laser radar Pending CN105375274A (en)

Priority Applications (1)

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CN201510981046.0A CN105375274A (en) 2015-12-22 2015-12-22 3341nm, 850nm and 1550nm three-wavelength optical-fiber output laser for laser radar

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CN201510981046.0A CN105375274A (en) 2015-12-22 2015-12-22 3341nm, 850nm and 1550nm three-wavelength optical-fiber output laser for laser radar

Publications (1)

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CN105375274A true CN105375274A (en) 2016-03-02

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Application publication date: 20160302