CN105337162A - 2009 nm and 905 nm dual-wavelength optical fiber output laser for laser radar - Google Patents
2009 nm and 905 nm dual-wavelength optical fiber output laser for laser radar Download PDFInfo
- Publication number
- CN105337162A CN105337162A CN201510938941.4A CN201510938941A CN105337162A CN 105337162 A CN105337162 A CN 105337162A CN 201510938941 A CN201510938941 A CN 201510938941A CN 105337162 A CN105337162 A CN 105337162A
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- laser
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- optical fiber
- fiber
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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
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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 2009 nm and 905 nm dual-wavelength optical fiber output laser for laser radar. 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 2009 nm, idler frequency light of 785 nm, pump light I of 1500 nm and pump light II of 905 nm enter a 2009 nm four-wave mixing periodic polarized lithium niobate laser resonant cavity, the four-wave mixing effect is performed, the output of signal light of 2009 nm is generated, and finally 2009 nm and 905 nm dual-wavelength optical fiber laser output is performed.
Description
Technical field: laser and applied technical field.
Technical background:
2009nm, 905nm dual-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 2009nm, 905nm dual 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 2009nm, 905nm dual-wavelength optical-fiber output laser, arrange 905nm splitting optical fiber circle at 905nm Laser output optical fiber rear, beam splitting one road 905nm exports, flashlight 2009nm,
Ideler frequency light 785nm, pump light I1500nm and pump light II905nm enter 2009nm four wave mixing periodically poled lithium niobate laserresonator, there is four-wave mixing effect, produce flashlight 2009nm to export, finally export 2009nm, 905nm dual-wavelength optical-fiber Laser output.
Scheme one, 2009nm 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 2009nm, ideler frequency light 785nm, pump light I1500nm and pump light II905nm, arranges 2009nm focus on output coupling mirror coupling access 2009nm output optical fibre at 2009nm four wave mixing periodically poled lithium niobate laserresonator output.
Scheme two, 905nm laser beam splitter fiber turns is set
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, 785nm resonant cavity is set
785nm resonant cavity is set, 785nm resonant cavity is set, set gradually from its input: the 785nm of one-level input mirror, 785nm laser crystal, 785nm outgoing mirror and output focuses on output coupling mirror, forms 785nm 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 2009nm, 905nm dual-wavelength optical-fiber output laser, 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, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 2009nm, ideler frequency light 785nm, pump light I1500nm and pump light II905nm, four wave mixing generates 2009nm optical-fiber laser and exports, and forms 2009nm, 905nm dual-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, 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, 785nm laser crystal, 11, 785nm outgoing mirror, 12, focus on output coupling mirror, 13, 785nm output optical fibre, 14, 785nm 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, 785nm 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, 2009nm four wave mixing periodically poled lithium niobate laserresonator, 39, three-wavelength input mirror, 40, 2009nm four wave mixing periodically poled lithium niobate laser crystal, 41, 2009nm outgoing mirror, 42, 2009nm focuses on output coupling mirror, and 43, 2009nm output optical fibre, 44, 2009nm Laser output, 45, 905nm output optical fibre, 46, 905nm splitting optical fiber circle, 47, 3-stage optical fiber structure.
Embodiment:
2009nm four wave mixing periodically poled lithium niobate laserresonator 38 is set, 905nm splitting optical fiber circle is set, signalization light 2009nm, ideler frequency light 785nm, there is the structure of the periodically poled lithium niobate laserresonator 38 of four wave mixing in pump light I1500nm and pump light II905nm, 2009nm is set at 2009nm four wave mixing periodically poled lithium niobate laserresonator 38 output and focuses on output coupling mirror 42 coupling access 2009nm output optical fibre 43, ideler frequency light 785nm, 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 785nm 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 49, 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 49, 785nm resonant cavity 14 is set, the output of 785nm resonant cavity 14 focuses on output coupling mirror 12 by 785nm and is linked in 785nm output optical fibre 13,785nm 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 32,785nm 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, 785nm resonant cavity 14 is set, set gradually from its input: one-level input mirror 9, 785nm laser crystal 10, 785nm outgoing mirror 11 focuses on output coupling mirror 12 with the 785nm of output, form 785nm 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 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 2009nm, 905nm dual-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 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 49, 905nm 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 905nm laser enters 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35, the 785nm laser that 785nm 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 785nm resonant cavity 14,785nm resonant cavity 14 generates 785nm basic frequency laser, focusing on output coupling mirror 12 through 785nm is coupled in 785nm output optical fibre 13, by its input 785nm laser in three-wavelength parameter coupler 33, thus, 1500nm laser, 785nm laser and 905nm laser are coupled into 2009nm four wave mixing periodically poled lithium niobate laserresonator 38 through three-wavelength parameter coupler 33, there is four-wave mixing effect in flashlight 2009nm, ideler frequency light 785nm, pump light I1500nm and pump light II905nm, make flashlight 2009nm generation, gain, flashlight 2009nm focuses on output coupling mirror 42 through 2009nm and exports 2009nm Laser output 44 with 2009nm output optical fibre 43.
Claims (1)
1. laser radar 2009nm, 905nm dual-wavelength optical-fiber output laser, it is characterized by, 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, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 2009nm, ideler frequency light 785nm, pump light I1500nm and pump light II905nm, four wave mixing generates 2009nm optical-fiber laser and exports, and forms 2009nm, 905nm dual-wavelength optical-fiber output laser structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938941.4A CN105337162A (en) | 2015-12-14 | 2015-12-14 | 2009 nm and 905 nm dual-wavelength optical fiber output laser for laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938941.4A CN105337162A (en) | 2015-12-14 | 2015-12-14 | 2009 nm and 905 nm dual-wavelength optical fiber output laser for laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105337162A true CN105337162A (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938941.4A Pending CN105337162A (en) | 2015-12-14 | 2015-12-14 | 2009 nm and 905 nm dual-wavelength optical fiber output laser for laser radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105337162A (en) |
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2015
- 2015-12-14 CN CN201510938941.4A patent/CN105337162A/en active Pending
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Application publication date: 20160217 |
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| WD01 | Invention patent application deemed withdrawn after publication |