CN105356235A - 532nm, 1319nm and 1500nm three-wavelength optical fiber output laser used for laser radar - Google Patents
532nm, 1319nm and 1500nm three-wavelength optical fiber output laser used for laser radar Download PDFInfo
- Publication number
- CN105356235A CN105356235A CN201510930926.5A CN201510930926A CN105356235A CN 105356235 A CN105356235 A CN 105356235A CN 201510930926 A CN201510930926 A CN 201510930926A CN 105356235 A CN105356235 A CN 105356235A
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- CN
- China
- Prior art keywords
- laser
- output
- optical fiber
- fiber
- lithium niobate
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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
- H01S3/05—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
Abstract
The invention provides a 532nm, 1319nm and 1500nm three-wavelength optical fiber output laser used for a laser radar. A 1500nm beam splitting fiber loop is arranged on the tail end of a 1500nm laser output optical fiber, and a path of 1500nm laser output is split out; and a 1319nm beam splitting fiber loop is arranged on the tail end of a 1319nm laser output optical fiber, and a path of 1319nm laser output is split out. 559nm signal light, 1500nm idle light, 1319nm pump light I and 532nm pump light II enter a 559nm four-wave mixing periodically-poled lithium niobate laser resonator, a four-wave mixing effect is generated, the 559nm signal light is output, and finally 532nm, 1319nm and 1500nm three-wavelength optical fiber lasers are output.
Description
Technical field: laser and applied technical field.
Technical background:
559nm, 1319nm, 1500nm three-wavelength laser, the laser applied for laser radar spectral detection, lasing light emitter, instrumental analysis etc., it can be used as laser radar optical fiber and passes the using light sources such as the analyzing and testing of 559nm, 1319nm, 1500nm three-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 559nm, 1319nm, 1500nm three-wavelength optical 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 1319nm Laser output optical fiber rear, 1319nm splitting optical fiber circle is set, beam splitting one road 1319nm Laser output, flashlight 559nm, ideler frequency light 1500nm, pump light I1319nm and pump light II532nm enters 559nm four wave mixing periodically poled lithium niobate laserresonator, there is four-wave mixing effect, produce flashlight 559nm to export, finally export 559nm, 1319nm, 1500nm three-wavelength optical-fiber laser exports.
Scheme one, 559nm 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 559nm, ideler frequency light 1500nm, pump light I1319nm and pump light II532nm, arranges 559nm focus on output coupling mirror coupling access 559nm output optical fibre at 559nm four wave mixing periodically poled lithium niobate laserresonator output.
Scheme two, 1500nm, 1319nm 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, arrange 1319nm splitting optical fiber circle at 1319nm Laser output optical fiber rear, beam splitting one road 1319nm laser exports through 1319nm 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, 532nm gain resonant cavity is set
532nm gain resonant cavity is set, sets gradually from its input: the 532nm of secondary input mirror, basic frequency laser crystal, 532nm gain crystal, 532nm outgoing mirror and output focuses on output coupling mirror, forms 532nm gain resonant cavity thus.
Scheme five, 1319nm resonant cavity is set
1319nm resonant cavity is set, 1319nm resonant cavity is set, set gradually from its input: the 1319nm of one-level input mirror, 1319nm laser crystal, 1319nm outgoing mirror and output focuses on output coupling mirror, forms 1319nm 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 532nm 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 559nm, 1319nm, 1500nm three-wavelength optical 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 1319nm Laser output optical fiber rear, 1319nm splitting optical fiber circle is set, beam splitting one road 1319nm laser exports through 1319nm laser output, signalization light 559nm, ideler frequency light 1500nm, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in pump light I1319nm and pump light II532nm, four wave mixing generates 559nm optical-fiber laser and exports, form 559nm, 1319nm, 1500nm three-wavelength optical 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, 532nm 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, 1319nm laser crystal, 11, 1319nm outgoing mirror, 12, focus on output coupling mirror, 13, 1319nm output optical fibre, 14, 1319nm resonant cavity, 15, secondary fiber turns, 16, secondary fiber-optic output, 17, secondary fiber coupler, 18, 532nm focuses on output coupling mirror, and 19, 532nm output optical fibre, 20, 532nm gain crystal, 21, 532nm outgoing mirror, 22, basic frequency laser crystal, 23, secondary input mirror, 24, 532nm 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, 1319nm 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, 559nm four wave mixing periodically poled lithium niobate laserresonator, 39, three-wavelength input mirror, 40, 559nm four wave mixing periodically poled lithium niobate laser crystal, 41, 559nm outgoing mirror, 42, 559nm focuses on output coupling mirror, and 43, 559nm output optical fibre, 44, 559nm Laser output, 45, 1319nm Laser output optical fiber, 46, 1500nm output optical fibre, 47, 1319nm splitting optical fiber circle, 48, 1500nm splitting optical fiber circle, 49, 3-stage optical fiber structure.
Embodiment:
559nm four wave mixing periodically poled lithium niobate laserresonator 38 is set, 1500nm splitting optical fiber circle 48 is set, 1319nm splitting optical fiber circle is set, signalization light 559nm, ideler frequency light 1500nm, there is the structure of the periodically poled lithium niobate laserresonator 38 of four wave mixing in pump light I1319nm and pump light II532nm, 559nm is set at 559nm four wave mixing periodically poled lithium niobate laserresonator 38 output and focuses on output coupling mirror 42 coupling access 559nm 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 1319nm output optical fibre 13,1319nm splitting optical fiber circle 47 is set, the 1319nm laser output 45 of 1319nm splitting optical fiber circle 47 is set, ideler frequency light 1500nm, pump light I1319nm and pump light II532nm with derive from three-wavelength parameter coupling transmission optical fiber 37, three-wavelength parameter coupler 33 is set before three-wavelength parameter coupling transmission optical fiber 37, by 1319nm output optical fibre 13, 532nm 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 49, 532nm gain resonant cavity 24 is set, 532nm gain resonant cavity 24 focuses on output coupling mirror 18 by the 532nm of its output and is linked in 532nm output optical fibre 19,532nm 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 49, 1319nm resonant cavity 14 is set, the output of 1319nm resonant cavity 14 focuses on output coupling mirror 12 by 1319nm and is linked in 1319nm output optical fibre 13,1319nm 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 49, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is set, set gradually from its input: 3-stage optical fiber input mirror 32,1319nm 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, 532nm gain resonant cavity 24 is set, set gradually from its input: secondary input mirror 23, basic frequency laser crystal 22,532nm gain crystal 20,532nm outgoing mirror 21 focus on output coupling mirror 18 with the 532nm of output, form 532nm gain resonant cavity 24 thus, 1319nm resonant cavity 14 is set, set gradually from its input: one-level input mirror 9, 1319nm laser crystal 10, 1319nm outgoing mirror 11 focuses on output coupling mirror 12 with the 1319nm of output, form 1319nm resonant cavity 14 thus, 3-stage optical fiber structure 49 is set, 3-stage optical fiber structure 49 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 532nm 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 559nm, 1319nm, 1500nm three-wavelength optical 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 532nm laser and is coupled into one-level fiber turns 6 through 532nm pumping coupler 4, thus enter secondary fiber turns 15 and the 3-stage optical fiber circle 25 of 3-stage optical fiber structure 49, 532nm laser obtains gain in 3-stage optical fiber structure 49, 3-stage optical fiber output 36 is drawn from by 3-stage optical fiber circle 25, input 532nm laser enters 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35, the 1319nm laser that 1319nm 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 532nm laser enters 532nm gain resonant cavity 24, basic frequency laser crystal 22 through 532nm gain resonant cavity 24 generates fundamental frequency light, through 532nm gain resonant cavity 24, gain output 532nm laser occurs, focusing on output coupling mirror 18 through 532nm is coupled in 532nm output optical fibre 19, by its input 532nm laser in three-wavelength parameter coupler 33, one-level fiber-optic output 7 is drawn from by one-level fiber turns 6, input 532nm laser enters 1319nm resonant cavity 14,1319nm resonant cavity 14 generates 1319nm basic frequency laser, focusing on output coupling mirror 12 through 1319nm is coupled in 1319nm output optical fibre 13, by its input 1319nm laser in three-wavelength parameter coupler 33, thus, 1500nm laser, 1319nm laser and 532nm laser are coupled into 559nm four wave mixing periodically poled lithium niobate laserresonator 38 through three-wavelength parameter coupler 33, flashlight 559nm, ideler frequency light 1500nm, there is four-wave mixing effect in pump light I1319nm and pump light II532nm, flashlight 559nm is occurred, gain, flashlight 559nm focuses on output coupling mirror 42 through 559nm and exports 559nm Laser output 44 with 559nm 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, 1319nm splitting optical fiber circle 47 beam splitting arranged at the rear of 1319nm output optical fibre 13 exports 1319nm laser, 1319nm is exported through output 45.
Claims (1)
1. a laser radar 559nm, 1319nm, 1500nm three-wavelength optical 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 1319nm Laser output optical fiber rear, 1319nm splitting optical fiber circle is set, beam splitting one road 1319nm laser exports through 1319nm laser output, signalization light 559nm, ideler frequency light 1500nm, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in pump light I1319nm and pump light II532nm, four wave mixing generates 559nm optical-fiber laser and exports, form 559nm, 1319nm, 1500nm three-wavelength optical fiber output laser structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930926.5A CN105356235A (en) | 2015-12-11 | 2015-12-11 | 532nm, 1319nm and 1500nm three-wavelength optical fiber output laser used for laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930926.5A CN105356235A (en) | 2015-12-11 | 2015-12-11 | 532nm, 1319nm and 1500nm three-wavelength optical fiber output laser used for laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105356235A true CN105356235A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510930926.5A Pending CN105356235A (en) | 2015-12-11 | 2015-12-11 | 532nm, 1319nm and 1500nm three-wavelength optical fiber output laser used for laser radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105356235A (en) |
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2015
- 2015-12-11 CN CN201510930926.5A patent/CN105356235A/en active Pending
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| C06 | Publication | ||
| 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 |