CN105337155A - 1764 nm, 830 nm, 905 nm and 1500 nm four-wavelength optical fiber output laser for laser radar - Google Patents

1764 nm, 830 nm, 905 nm and 1500 nm four-wavelength optical fiber output laser for laser radar Download PDF

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Publication number
CN105337155A
CN105337155A CN201510938280.5A CN201510938280A CN105337155A CN 105337155 A CN105337155 A CN 105337155A CN 201510938280 A CN201510938280 A CN 201510938280A CN 105337155 A CN105337155 A CN 105337155A
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CN
China
Prior art keywords
laser
output
optical fiber
fiber
beam splitting
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Pending
Application number
CN201510938280.5A
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Chinese (zh)
Inventor
王涛
张波
王茁
王天泽
朱金龙
胡亚鹏
昝占华
赵新潮
马龙飞
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Wuxi Jintianyang Laser Electronic Co Ltd
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Wuxi Jintianyang Laser Electronic Co Ltd
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Application filed by Wuxi Jintianyang Laser Electronic Co Ltd filed Critical Wuxi Jintianyang Laser Electronic Co Ltd
Priority to CN201510938280.5A priority Critical patent/CN105337155A/en
Publication of CN105337155A publication Critical patent/CN105337155A/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
    • H01S3/05—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
    • H01S3/0809—Two-wavelenghth 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

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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 1764 nm, 830 nm, 905 nm and 1500 nm four-wavelength optical fiber output laser for laser radar. A 1500 nm beam splitting optical fiber ring is arranged at the tail section of a 1500 nm laser output optical fiber, beam splitting one-path 1500 nm laser output is performed; a 830 nm beam splitting optical fiber ring is arranged at the tail section of a 830 nm laser output optical fiber, and beam splitting one-path 830 nm laser output is performed; a 905 nm beam splitting optical fiber ring is arranged at the tail section of a 905 nm laser output optical fiber, and beam splitting one-path 905 nm laser output is performed. Signal light of 1764 nm, idler frequency light of 830 nm, pump light I of 1500 nm and pump light II of 905 nm enter a 1764 nm four-wave mixing periodic polarized lithium niobate laser resonant cavity, the four-wave mixing effect is performed, the output of signal light of 1764 nm is generated, and finally 1764 nm, 830 nm, 905 nm and 1500 nm four-wavelength optical fiber laser output is performed.

Description

A kind of laser radar 1764nm, 830nm, 905nm, 1500nm tetra-long wavelength fiber output laser
Technical field: laser and applied technical field.
Technical background:
1764nm, 830nm, 905nm, 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 1764nm, 830nm, 905nm, 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 1764nm, 830nm, 905nm, 1500nm tetra-long wavelength fiber output laser, at 1500nm Laser output optical fiber rear, 1500nm splitting optical fiber circle is set, beam splitting one road 1500nm Laser output, at 830nm Laser output optical fiber rear, 830nm splitting optical fiber circle is set, beam splitting one road 830nm Laser output, at 905nm Laser output optical fiber rear, 905nm splitting optical fiber circle is set, beam splitting one road 905nm exports, and flashlight 1764nm, ideler frequency light 830nm, pump light I1500nm and pump light II905nm enter 1764nm
, there is four-wave mixing effect in four wave mixing periodically poled lithium niobate laserresonator, produces flashlight 1764nm and export, and finally exports 1764nm, 830nm, 905nm, 1500nm tetra-long wavelength fiber Laser output.
Scheme one, 1764nm tetra-long wavelength fiber laser structure.
There is the structure of the periodically poled lithium niobate laserresonator 38 of four wave mixing in signalization light 1764nm, ideler frequency light 830nm, pump light I1500nm and pump light II905nm, arranges 1764nm focus on output coupling mirror coupling access 1764nm output optical fibre at 1764nm four wave mixing periodically poled lithium niobate laserresonator output.
Scheme two, 1500nm, 830nm, 905nm laser beam splitter fiber turns is set respectively
At 1500nm output optical fibre rear, 1500nm splitting optical fiber circle is set, beam splitting one road 1500nm laser exports through 1500nm laser output, at 830nm Laser output optical fiber rear, 830nm splitting optical fiber circle is set, beam splitting one road 830nm laser exports through 830nm laser output, arrange 905nm splitting optical fiber circle at 905nm Laser output optical fiber rear, beam splitting one road 905nm laser exports through 905nm laser output.
Scheme three, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber is set
1500nm periodically poled lithium niobate laser parameter oscillating tank chamber is set, set gradually from its input: the 1500nm of 3-stage optical fiber input mirror, parametric oscillation basic frequency laser crystal, parametric oscillation input mirror, 1500nm periodically poled lithium niobate laser crystal, 1500nm outgoing mirror and output focuses on output coupling mirror, forms 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber thus.
Scheme four, 905nm gain resonant cavity is set
905nm gain resonant cavity is set, sets gradually from its input: the 905nm of secondary input mirror, basic frequency laser crystal, 905nm gain crystal, 905nm outgoing mirror and output focuses on output coupling mirror, forms 905nm gain resonant cavity thus.
Scheme five, 830nm resonant cavity is set
830nm resonant cavity is set, 830nm resonant cavity is set, set gradually from its input: the 830nm of one-level input mirror, 830nm laser crystal, 830nm outgoing mirror and output focuses on output coupling mirror, forms 830nm 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 905nm 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 1764nm, 830nm, 905nm, 1500nm tetra-long wavelength fiber output laser, at 1500nm output optical fibre rear, 1500nm splitting optical fiber circle is set, beam splitting one road 1500nm laser exports through 1500nm laser output, at 830nm Laser output optical fiber rear, 830nm splitting optical fiber circle is set, beam splitting one road 830nm laser exports through 830nm laser output, at 905nm Laser output optical fiber rear, 905nm splitting optical fiber circle is set, beam splitting one road 905nm laser exports through 905nm laser output, signalization light 1764nm, ideler frequency light 830nm, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in pump light I1500nm and pump light 11905nm, four wave mixing generates 1764nm optical-fiber laser and exports, form 1764nm, 830nm, 905nm, 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, 905nm 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, 830nm laser crystal, 11, 830nm outgoing mirror, 12, focus on output coupling mirror, 13, 830nm output optical fibre, 14, 830nm resonant cavity, 15, secondary fiber turns, 16, secondary fiber-optic output, 17, secondary fiber coupler, 18, 905nm focuses on output coupling mirror, and 19, 905nm output optical fibre, 20, 905nm gain crystal, 21, 905nm outgoing mirror, 22, basic frequency laser crystal, 23, secondary input mirror, 24, 905nm gain resonant cavity, 25, 3-stage optical fiber circle, 26, 1500nm output optical fibre, 27, 1500nm focuses on output coupling mirror, and 28, 1500nm outgoing mirror, 29, 1500nm periodically poled lithium niobate laser crystal, 30, parametric oscillation input mirror, 31, 830nm 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, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber, 36, 3-stage optical fiber output, 37, three-wavelength parameter coupling transmission optical fiber, 38, 1764nm four wave mixing periodically poled lithium niobate laserresonator, 39, three-wavelength input mirror, 40, 1764nm four wave mixing periodically poled lithium niobate laser crystal, 41, 1764nm outgoing mirror, 42, 1764nm focuses on output coupling mirror, and 43, 1764nm output optical fibre, 44, 1764nm Laser output, 45, 830nm Laser output optical fiber, 46, 1500nm output optical fibre, 47, 830nm splitting optical fiber circle, 48, 1500nm splitting optical fiber circle, 49, 905nm output optical fibre, 50, 905nm splitting optical fiber circle, 51, 3-stage optical fiber structure.
Embodiment:
1764nm four wave mixing periodically poled lithium niobate laserresonator 38 is set, 1500nm splitting optical fiber circle 48 is set, 830nm splitting optical fiber circle is set, 905nm splitting optical fiber circle is set, signalization light 1764nm, ideler frequency light 830nm, there is the structure of the periodically poled lithium niobate laserresonator 38 of four wave mixing in pump light I1500nm and pump light II905nm, 1764nm is set at 1764nm four wave mixing periodically poled lithium niobate laserresonator 38 output and focuses on output coupling mirror 42 coupling access 1764nm output optical fibre 43, at the rear of 1500nm output optical fibre 26,1500nm splitting optical fiber circle 48 is set, the 1500nm Laser output optical fiber 46 of 1500nm splitting optical fiber circle 48 is set, at the rear of 830nm output optical fibre 13,830nm splitting optical fiber circle 47 is set, the 830nm laser output 45 of 830nm splitting optical fiber circle 47 is set, ideler frequency light 830nm, pump light I1500nm and pump light II905nm 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 830nm output optical fibre 13, 905nm output optical fibre 19 is coupled with 1500nm output optical fibre 26 and accesses three-wavelength parameter coupler 33, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is set, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 focuses on output coupling mirror 27 by the 1500nm of its output and is linked in 1500nm output optical fibre 26, the input in 1500nm 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, 905nm gain resonant cavity 24 is set, 905nm gain resonant cavity 24 focuses on output coupling mirror 18 by the 905nm of its output and is linked in 905nm output optical fibre 19,905nm gain resonant cavity 24 is connected on secondary fiber-optic output 16 by the secondary fiber coupler 17 of its input, and secondary fiber-optic output 16 is drawn from the secondary fiber turns 15 of 3-stage optical fiber structure 51, 830nm resonant cavity 14 is set, the output of 830nm resonant cavity 14 focuses on output coupling mirror 12 by 830nm and is linked in 830nm output optical fibre 13,830nm 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, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is set, set gradually from its input: 3-stage optical fiber input mirror 32,830nm parametric oscillation basic frequency laser crystal 31, parametric oscillation input mirror 30,1500nm periodically poled lithium niobate laser crystal 29,1500nm outgoing mirror 28 focus on output coupling mirror with the 1500nm of output, form 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 thus, 905nm gain resonant cavity 24 is set, set gradually from its input: secondary input mirror 23, basic frequency laser crystal 22,905nm gain crystal 20,905nm outgoing mirror 21 focus on output coupling mirror 18 with the 905nm of output, form 905nm gain resonant cavity 24 thus, 830nm resonant cavity 14 is set, set gradually from its input: one-level input mirror 9, 830nm laser crystal 10, 830nm outgoing mirror 11 focuses on output coupling mirror 12 with the 830nm of output, form 830nm 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 905nm 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 1764nm, 830nm, 905nm, 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 905nm laser and is coupled into one-level fiber turns 6 through 905nm pumping coupler 4, thus enter secondary fiber turns 15 and the 3-stage optical fiber circle 25 of 3-stage optical fiber structure 51, 905nm 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 905nm laser enters 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35, the 830nm laser that 830nm parametric oscillation basic frequency laser crystal 31 through 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 generates goes pump optical parametric oscillation to generate 1500nm laser, focusing on output coupling mirror 27 through 1500nm is coupled in 1500nm output optical fibre 26, by its input 1500nm laser in three-wavelength parameter coupler 33, secondary fiber-optic output 16 is drawn from by secondary fiber turns 15, input 905nm laser enters 905nm gain resonant cavity 24, basic frequency laser crystal 22 through 905nm gain resonant cavity 24 generates fundamental frequency light, through 905nm gain resonant cavity 24, gain output 905nm laser occurs, focusing on output coupling mirror 18 through 905nm is coupled in 905nm output optical fibre 19, by its input 905nm laser in three-wavelength parameter coupler 33, one-level fiber-optic output 7 is drawn from by one-level fiber turns 6, input 905nm laser enters 830nm resonant cavity 14,830nm resonant cavity 14 generates 830nm basic frequency laser, focusing on output coupling mirror 12 through 830nm is coupled in 830nm output optical fibre 13, by its input 830nm laser in three-wavelength parameter coupler 33, thus, 1500nm laser, 830nm laser and 905nm laser are coupled into 1764nm four wave mixing periodically poled lithium niobate laserresonator 38 through three-wavelength parameter coupler 33, flashlight 1764nm, ideler frequency light 830nm, there is four-wave mixing effect in pump light I1500nm and pump light II905nm, flashlight 1764nm is occurred, gain, flashlight 1764nm focuses on output coupling mirror 42 through 1764nm and exports 1764nm Laser output 44 with 1764nm output optical fibre 43, 1500nm splitting optical fiber circle 48 beam splitting arranged at the rear of 1500nm output optical fibre 26 exports 1500nm laser, 1500nm is exported through 1500nm laser output 46, 830nm splitting optical fiber circle 47 beam splitting arranged at the rear of 830nm output optical fibre 13 exports 830nm laser, 830nm is exported through output 45.

Claims (1)

1. a laser radar 1764nm, 830nm, 905nm, 1500nm tetra-long wavelength fiber output laser, it is characterized by: at 1500nm output optical fibre rear, 1500nm splitting optical fiber circle is set, beam splitting one road 1500nm laser exports through 1500nm laser output, at 830nm Laser output optical fiber rear, 830nm splitting optical fiber circle is set, beam splitting one road 830nm laser exports through 830nm laser output, at 905nm Laser output optical fiber rear, 905nm splitting optical fiber circle is set, beam splitting one road 905nm laser exports through 905nm laser output, signalization light 1764nm, ideler frequency light 830nm, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in pump light I1500nm and pump light II905nm, four wave mixing generates 1764nm optical-fiber laser and exports, form 1764nm, 830nm, 905nm, 1500nm tetra-long wavelength fiber output laser structure.
CN201510938280.5A 2015-12-14 2015-12-14 1764 nm, 830 nm, 905 nm and 1500 nm four-wavelength optical fiber output laser for laser radar Pending CN105337155A (en)

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CN201510938280.5A CN105337155A (en) 2015-12-14 2015-12-14 1764 nm, 830 nm, 905 nm and 1500 nm four-wavelength optical fiber output laser for laser radar

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CN201510938280.5A CN105337155A (en) 2015-12-14 2015-12-14 1764 nm, 830 nm, 905 nm and 1500 nm four-wavelength optical fiber output laser for laser radar

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108232789A (en) * 2017-08-10 2018-06-29 青岛洼特帽业有限公司 A kind of electric power connecting base device of powered stable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108232789A (en) * 2017-08-10 2018-06-29 青岛洼特帽业有限公司 A kind of electric power connecting base device of powered stable

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