CN105375259A - 10945nm 660nm 1064nm 1500nm four wavelength optical fiber output laser for laser radar - Google Patents

10945nm 660nm 1064nm 1500nm four wavelength optical fiber output laser for laser radar Download PDF

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Publication number
CN105375259A
CN105375259A CN201510938912.8A CN201510938912A CN105375259A CN 105375259 A CN105375259 A CN 105375259A CN 201510938912 A CN201510938912 A CN 201510938912A CN 105375259 A CN105375259 A CN 105375259A
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CN
China
Prior art keywords
laser
output
optical fiber
lithium niobate
periodically poled
Prior art date
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
CN201510938912.8A
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Chinese (zh)
Inventor
王涛
张波
王天泽
赵新潮
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Wuxi Jintianyang Laser Electronic Co Ltd
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Wuxi Jintianyang Laser Electronic Co Ltd
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Publication date
Application filed by Wuxi Jintianyang Laser Electronic Co Ltd filed Critical Wuxi Jintianyang Laser Electronic Co Ltd
Priority to CN201510938912.8A priority Critical patent/CN105375259A/en
Publication of CN105375259A publication Critical patent/CN105375259A/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
    • H01S3/05—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
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08086—Multiple-wavelength emission
    • 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
    • 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

Abstract

The invention discloses a 10945nm 660nm 1064nm 1500nm four wavelength optical fiber output laser for laser radar. A 10945 nm four-wave mixing periodically poled lithium niobate laser resonate cavity is arranged; a 660 nm beam splitting optical fiber loop is arranged; a path of 660 nm laser output is branched; a 1064 nm beam splitting fiber loop is arranged; a path of 1064 nm laser output is branched; a 1500 nm beam splitting fiber loop is arranged; a path of 1500 nm laser output is branched; signal light 10945 nm, idle light 660 nm, pump light I 1064 nm and pump light II 1500 nm enter the 10945 nm four-wave mixing periodically poled lithium niobate laser resonant cavity and generate a four-wave frequency mixing reaction; then the signal light10945 nm output is generated; and then the 10945nm, 660nm, 1064nm and 1500nm four wavelength optical fiber laser output is outputted.

Description

A kind of laser radar 10945nm, 660nm, 1064nm, 1500nm tetra-long wavelength fiber output laser
Technical field: laser and applied technical field.
Technical background:
10945nm, 660nm, 1064nm, 1500nm tetra-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 10945nm, 660nm, 1064nm, 1500nm tetra-using light source such as analyzing and testing of 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 10945nm, 660nm, 1064nm, 1500nm tetra-long wavelength fiber output laser, the periodically poled lithium niobate laserresonator of 10945nm four wave mixing is set, at 660nm Laser output optical fiber rear, 660nm splitting optical fiber circle is set, beam splitting one road 660nm Laser output, at 1064nm Laser output optical fiber rear, 1064nm splitting optical fiber circle is set, beam splitting one road 1064nm Laser output, at 1500nm Laser output optical fiber rear, 1500nm splitting optical fiber circle is set, beam splitting one road 1500nm exports, flashlight 10945nm, ideler frequency light 660nm, pump light I1064nm and pump light II1500nm enters 10945nm four wave mixing periodically poled lithium niobate laserresonator, there is four-wave mixing effect, produce flashlight 10945nm to export, finally export 10945nm, 660nm, 1064nm, 1500nm tetra-long wavelength fiber Laser output.
The structure of the periodically poled lithium niobate laserresonator of scheme one, 10945nm four wave mixing.
There is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 10945nm, ideler frequency light 660nm, pump light I1064nm and pump light II1500nm, set gradually three-wavelength input mirror from its input, 10945nm four wave mixing periodically poled lithium niobate laser crystal, 10945nm outgoing mirror, 10945nm focus on output coupling mirror, 10945nm focuses on output coupling mirror coupling and accesses 10945nm output optical fibre.
Scheme two, 660nm, 1064nm, 1500nm laser beam splitter fiber turns is set respectively
At 660nm Laser output optical fiber rear, 660nm splitting optical fiber circle is set, beam splitting one road 660nm Laser output, at 1064nm Laser output optical fiber rear, 1064nm splitting optical fiber circle is set, beam splitting one road 1064nm Laser output, arrange 1500nm splitting optical fiber circle at 1500nm Laser output optical fiber rear, beam splitting one road 1500nm exports.
Scheme three, 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 four, 1500nm periodically poled lithium niobate laserresonator is set
1500nm periodically poled lithium niobate laserresonator is set, set gradually from its input: secondary input mirror, 1500nm basic frequency laser crystal, 1500nm periodically poled lithium niobate laser crystal, 1500nm outgoing mirror 21 focus on output coupling mirror with the 1500nm of output, form 1500nm periodically poled lithium niobate laserresonator thus.
Scheme five, 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 six, 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 10945nm, 660nm, 1064nm, 1500nm tetra-long wavelength fiber output laser, at 660nm Laser output optical fiber rear, 660nm splitting optical fiber circle is set, beam splitting one road 660nm Laser output, at 1064nm Laser output optical fiber rear, 1064nm splitting optical fiber circle is set, beam splitting one road 1064nm Laser output, at 1500nm Laser output optical fiber rear, 1500nm splitting optical fiber circle is set, beam splitting one road 1500nm exports, signalization light 10945nm, ideler frequency light 660nm, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in pump light I1064nm and pump light II1500nm, there is four-wave mixing effect and generate the output of flashlight 10945nm optical-fiber laser, form 10945nm, 660nm, 1064nm, 1500nm tetra-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, 1500nm focuses on output coupling mirror, and 19, 1500nm output optical fibre, 20, 1500nm periodically poled lithium niobate laser crystal, 21, 1500nm outgoing mirror, 22, 1500nm basic frequency laser crystal, 23, secondary input mirror, 24, 1500nm periodically poled lithium niobate laserresonator, 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, 10945nm four wave mixing periodically poled lithium niobate laserresonator, 39, three-wavelength input mirror, 40, 10945nm four wave mixing periodically poled lithium niobate laser crystal, 41, 10945nm outgoing mirror, 42, 10945nm focuses on output coupling mirror, and 43, 10945nm output optical fibre, 44, 10945nm Laser output, 45, 1064nm Laser output optical fiber, 46, 660nm output optical fibre, 47, 1064nm splitting optical fiber circle, 48, 660nm splitting optical fiber circle, 49, 1500nm output optical fibre, 50, 1500nm splitting optical fiber circle, 51, 3-stage optical fiber structure.
Embodiment:
10945nm four wave mixing periodically poled lithium niobate laserresonator 38 is set, at 660nm Laser output optical fiber 26 rear, 660nm splitting optical fiber circle 48 is set, beam splitting one road 660nm Laser output, at 1064nm Laser output optical fiber 13 rear, 1064nm splitting optical fiber circle 47 is set, beam splitting one road 1064nm Laser output, at 1500nm Laser output optical fiber 19 rear, 1500nm splitting optical fiber circle 50 is set, beam splitting one road 1500nm exports, signalization light 10945nm, 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 II1500nm, 10945nm is set at 10945nm four wave mixing periodically poled lithium niobate laserresonator 38 output and focuses on output coupling mirror 42 coupling access 10945nm output optical fibre 43, at 660nm Laser output optical fiber 26 rear, 660nm splitting optical fiber circle 48 is set, beam splitting one road 660nm Laser output, at 1064nm Laser output optical fiber 13 rear, 1064nm splitting optical fiber circle 47 is set, beam splitting one road 1064nm Laser output, at 1500nm Laser output optical fiber 19 rear, 1500nm splitting optical fiber circle 50 is set, beam splitting one road 1500nm exports, ideler frequency light 660nm, pump light I1064nm and pump light II1500nm 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, 1500nm 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 51, the structure of the periodically poled lithium niobate laserresonator 38 of signalization light 10945nm four wave mixing, three-wavelength input mirror 39 is set gradually from its input, 10945nm four wave mixing periodically poled lithium niobate laser crystal 40, 10945nm outgoing mirror 41, 10945nm focuses on output coupling mirror 42, 10945nm focuses on output coupling mirror 42 coupling access 10945nm output optical fibre 43, 1500nm periodically poled lithium niobate laserresonator 24 is set, 1500nm periodically poled lithium niobate laserresonator 24 focuses on output coupling mirror 18 by the 1500nm of its output and is linked in 1500nm output optical fibre 19, 1500nm periodically poled lithium niobate laserresonator 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 51, 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 51, 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, 1500nm periodically poled lithium niobate laserresonator 24 is set, set gradually from its input: secondary inputs mirror 23,1500nm basic frequency laser crystal 22,1500nm outgoing mirror 21, focuses on output coupling mirror 18 with the 1500nm of output, forms 1500nm periodically poled lithium niobate laserresonator 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 51 is set, 3-stage optical fiber structure 51 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 10945nm, 660nm, 1064nm, 1500nm tetra-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 51, 808nm laser obtains gain in 3-stage optical fiber structure 51, 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 1500nm periodically poled lithium niobate laserresonator 24,1500nm basic frequency laser crystal 22 through 1500nm periodically poled lithium niobate laserresonator 24 generates 1500nm laser, focusing on output coupling mirror 18 through 1500nm is coupled in 1500nm output optical fibre 19, by its input 1500nm 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 1500nm laser are coupled into 10945nm four wave mixing periodically poled lithium niobate laserresonator 38 through three-wavelength parameter coupler 33, flashlight 10945nm, ideler frequency light 660nm, there is four-wave mixing effect in pump light I1064nm and pump light II1500nm, flashlight 10945nm is occurred, gain, flashlight 10945nm focuses on output coupling mirror 42 through 10945nm and exports 10945nm Laser output 44 with 10945nm output optical fibre 43, at 660nm Laser output optical fiber 26 rear, 660nm splitting optical fiber circle 48 is set, beam splitting one road 660nm Laser output, at 1064nm Laser output optical fiber 13 rear, 1064nm splitting optical fiber circle 47 is set, beam splitting one road 1064nm Laser output, at 1500nm Laser output optical fiber 19 rear, 1500nm splitting optical fiber circle 50 is set, beam splitting one road 1500nm exports.

Claims (1)

1. a laser radar 10945nm, 660nm, 1064nm, 1500nm tetra-long wavelength fiber output laser, it is characterized by, at 660nm Laser output optical fiber rear, 660nm splitting optical fiber circle is set, beam splitting one road 660nm Laser output, at 1064nm Laser output optical fiber rear, 1064nm splitting optical fiber circle is set, beam splitting one road 1064nm Laser output, at 1500nm Laser output optical fiber rear, 1500nm splitting optical fiber circle is set, beam splitting one road 1500nm exports, signalization light 10945nm, ideler frequency light 660nm, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in pump light I1064nm and pump light II1500nm, there is four-wave mixing effect and generate the output of flashlight 10945nm optical-fiber laser, form 10945nm, 660nm, 1064nm, 1500nm tetra-long wavelength fiber output laser structure.
CN201510938912.8A 2015-12-14 2015-12-14 10945nm 660nm 1064nm 1500nm four wavelength optical fiber output laser for laser radar Pending CN105375259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510938912.8A CN105375259A (en) 2015-12-14 2015-12-14 10945nm 660nm 1064nm 1500nm four wavelength optical fiber output laser for laser radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510938912.8A CN105375259A (en) 2015-12-14 2015-12-14 10945nm 660nm 1064nm 1500nm four wavelength optical fiber output laser for laser radar

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CN105375259A true CN105375259A (en) 2016-03-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108494486A (en) * 2018-04-25 2018-09-04 中国科学技术大学 Infrared light image detection system based on atomic gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108494486A (en) * 2018-04-25 2018-09-04 中国科学技术大学 Infrared light image detection system based on atomic gas

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